Document:

<PAGE>

                          BASE STATION SYSTEM AGREEMENT

                                     BETWEEN

                      LANKA CELLULAR SERVICES (PVT) LIMITED

                                        AND

                   interWAVE COMMUNICATIONS INTERNATIONAL LTD.

<PAGE>

THE AGREEMENT

<TABLE>
<CAPTION>

CLAUSE                                                                     PAGE
------                                                                     ----
<S>                                                                        <C>
          Definitions and Interpretation                                     1

1.        Scope of Work                                                      5

2.        Prices                                                             7

3.        Delivery Schedule and Delivery                                     7

4.        Adjustment for Late Achievement

5.        Inspection and Acceptance                                          9

6.        Title and Assumption of Risk                                      10

7.        Warranty of the Work, Equipment, Software and Services            11

8.        Payments                                                          13

9.        Taxes and Duties Indemnities                                      14

10.       Ownership of Intellectual Property Rights and Software Licenses   14

11.       Intellectual Property Rights - Warranty and Indemnity             15

12.       Training                                                          16

13.       Option                                                            16

14.       Confidentiality                                                   16

15.       Loss and Damage Indemnity                                         16

16.       Insurance                                                         17

17.       Key Personnel and Progress Reports                                19

18.       Changes                                                           20

19.       Assignment and Sub-contracting of Agreement                       21

20.       Publicity related to Agreement                                    21

21.       Expert Decisions                                                  21

22.       Time-limits                                                       21

<PAGE>

<S>                                                                        <C>
23.       Force Majeure                                                     22

24.       Termination for Default                                           22

25.       Government Authorizations

26.       Language and Communication                                        24

27.       Notices and Reports                                               25

28.       Waiver and Approvals                                              26

29.       Entire Agreement                                                  26

30.       No Joint Venture                                                  26

31.       Severability                                                      26

32.       Headings                                                          27

33.       Export Control                                                    27

34.       Re-Exportation                                                    27

35.       Applicable Law                                                    27
</TABLE>

APPENDIX AND SCHEDULE

Appendix  A              Proposed Delivery Schedule

Appendix B               Prices and Quantities

Schedule 1               Specifications

Schedule 2               Scope of Work

Schedule 3               Initial Acceptance Certificate
Annex to Schedule 3      Initial Acceptance Test Plan

Schedule 4               Customer Advocacy Plan
Annex to Schedule 4      Maintenance Agreement

Schedule 5               Confidentiality and Non-Disclosure Agreement

Annex                    Letter of Intent

<PAGE>

THIS AGREEMENT is made the            day of  December, 1999.

BETWEEN

(1)    LANKA CELLULAR SERVICES (PVT) LIMITED of 4th Floor, 1119 Maradana Road,
       Colombo 8, Sri Lanka (the "Purchaser"); and

(2)    interWAVE COMMUNICATIONS INTERNATIONAL LTD. of Codan Services, Claredon
       House, Church Street, Hamilton HM DX, Bermuda ("the Contractor").

WHEREAS

A.     The Contractor has issued a proposal for a System meeting the
       Specifications attached hereto as Schedule 1 for a technologically
       advanced, flexible, reliable and constantly evolving micro-cell base
       station system and related equipment and software.

B.     The Purchaser now wishes to confirm the appointment of the Contractor for
       the supply of the Equipment and Software and carrying out of the Work and
       the Contractor has agreed to provide and carry out the same subject
       always to the terms and conditions herein contained.

DEFINITIONS AND INTERPRETATION

A.     Capitalized terms used within this Agreement are defined as follows:

       "Agreement"                 shall mean this Agreement and all Appendices
                                   and Schedules attached hereto.

       "Associate"                 shall mean, in relation to any person, any
                                   person who for the time being controls such
                                   person or is controlled by such person or is
                                   controlled by a third person who also
                                   controls such person.

        "BSS"                      shall mean Base Station Subsystem groups and
                                   the Equipment as defined in the Groupe
                                   Speciale Mobile ("GSM") specifications set
                                   down by the European Telecommunications
                                   Standards Institute.

<PAGE>

       "Control"                   shall mean, in relation to a company, the
                                   power of a person directly or indirectly to
                                   secure:

                                   (i)    by means of the holding of shares or
                                          the possession of voting power (either
                                          at shareholder level or director
                                          level) in or in relation to that or
                                          any other company, or

                                   (ii)   by virtue of any powers conferred by
                                          the articles of association or other
                                          document regulating that or any other
                                          company that the affairs of that
                                          company are conducted in accordance
                                          with the wishes of that person, and
                                          "Controlled", "Controller" and cognate
                                          expressions shall be construed
                                          accordingly.

       "Customer Advocacy Plan"    shall mean the customer advocacy plan
                                   contained in Schedule 4, describing the
                                   support services to be provided by the
                                   Contractor to the Purchaser in relation to
                                   the operation of the System.

       "Delivery Point"            shall mean the port at Colombo, in Sri Lanka
                                   or any other delivery point as the Purchaser
                                   and the Contractor shall agree in writing
                                   from time to time.

       "Documentation"             shall mean all documentation described and
                                   referred to in Schedule 1 or required for the
                                   proper installation, maintenance and
                                   operation of the System including without
                                   limitation the User's Guide, Maintenance
                                   Manual, Operations Packet, Marketing Packet
                                   and their respective updates and revisions
                                   from time to time referred to by the
                                   Contractor in its Proposal.

       "Effective Date"            shall mean [13] December 1999.
       .
        "Equipment"                shall mean all, or where the context so
                                   requires any part or item of, the
                                   infrastructure, equipment, hardware and
                                   materials to be supplied by the Contractor
                                   under this Agreement, as more fully set out
                                   in the Proposal and further including without
                                   limitation the Expansion but only to the
                                   extent that the Purchaser exercises the
                                   Option.

       "Expansion"                 shall mean those elements of the Work and any
                                   other works which the Purchaser shall
                                   contract with the Contractor to supply and
                                   install pursuant to the Option.

<PAGE>

       "Expansion System"          shall mean those elements of the System to be
                                   supplied by the Contractor under the
                                   Expansion.

       "First Delivery"            means a "mini-system" of 60 units of
                                   WAVEXpress/BTS, 5 units of WAVEXpress/BSC, 3
                                   units of WAVEXchange/WXC and the OMC-R
                                   system, forming part of the Initial System or
                                   any reconfiguration or variation thereof as
                                   the Purchaser may request in accordance with
                                   Clause 1.3.

        "GSM System"               shall mean the Purchaser's proposed cellular
                                   radiotelephone system employing Groupe
                                   Speciale Mobile technology.

       "Initial Acceptance"        shall have the meaning ascribed to it in
                                   Clause 5.

       "Initial Acceptance
       Certificate"                shall mean the certificate issued by the
                                   Purchaser to the Contractor upon occurrence
                                   of the relevant Initial Acceptance.

       "Initial Acceptance Tests"  shall mean the initial acceptance testing
                                   procedures set out in Schedule 3 together
                                   with such further tests as the Purchaser and
                                   the Contractor may agree, to satisfy that the
                                   System complies with and performs in
                                   accordance with Specifications.

       "Initial System"            shall mean those elements of the System to be
                                   supplied by the Contractor under the Initial
                                   Work comprising the Phase I and Phase II
                                   Deployment in Sri Lanka.

       "Initial Work"              shall mean those elements of the Work marked
                                   as such in Appendix B.

       "Intellectual Property
       Rights"                     shall mean patents, trademarks, service
                                   marks, trade names, registered designs,
                                   designs, copyrights and other forms of
                                   intellectual or industrial property (in each
                                   case in any part of the world and whether or
                                   not registered or registrable and for the
                                   full period thereof and all extensions and
                                   renewals thereof and applications for
                                   registration of or otherwise in connection
                                   with the foregoing), know-how, inventions,
                                   formulae, confidential or secret processes,
                                   trade secrets and confidential information,
                                   and any protected rights

<PAGE>

                                   and assets, and any licenses and permissions
                                   in connection therewith.

       "Letter of Intent"          shall mean the letter of intent dated 7
                                   December 1999 from the Purchaser to the
                                   Contractor, countersigned by the Contractor,
                                   setting out the terms upon which the
                                   Purchaser will enter into this Agreement
                                   (which is attached to this Agreement as an
                                   Annex).

       "Milestones"                shall mean the last day of the time period or
                                   the date for completion of each item of Work
                                   set out in the Proposed Delivery Schedule.

        "Option"                   shall have the meaning ascribed to it in
                                   Clause 13.

       "Phase I Deployment"        shall mean the deployment of Phase I of the
                                   System, comprising the Equipment and Software
                                   to be delivered under the First Delivery.

       "Phase II Deployment"       shall mean the deployment of Phase II of the
                                   System, comprising the Equipment and Software
                                   to be delivered under the Second Delivery.

       "Proposal"                  shall mean the Contractor's proposal to
                                   supply the System meeting the Specifications
                                   as set out in Schedule 1.

       "Proposed Delivery          shall mean the schedule of Milestones set out
       Schedule"                   in Appendix A.

       "Quantities"                shall be as shown in Appendix B.

       "Sampling Process"          shall mean the sampling process set out in
                                   the Proposal.

       "Second Delivery"           means 54 units of WAVEXpress/BTS, 5 units of
                                   WAVEXpress/BSC and 4 units of
                                   WAVEXchange/WXC, forming part of the Initial
                                   System or any reconfiguration or variation
                                   thereof as the Purchaser may request in
                                   accordance with Clause 1.3.

       "Service Acceptance"        shall have the meanings ascribed to it in
                                   Clause 5.

       "Services"                  shall mean maintenance, repair, training,
                                   testing, engineering, installation,
                                   commissioning or other

<PAGE>

                                   services performed by the Contractor under
                                   the terms of this Agreement.

       "Service Acceptance
       Certificate"                shall mean the certificate issued by the
                                   Purchaser upon the occurrence of the relevant
                                   Service Acceptance.

       "Site"                      shall mean the site(s) at which the Equipment
                                   is to be installed, as from time to time
                                   notified by the Purchaser.

       "Software"                  shall mean such computer programs, or parts
                                   thereof, in any language form or medium, to
                                   be furnished by the Contractor under this
                                   Agreement, including without limitation the
                                   computer software described in the Proposal
                                   and further including without limitation the
                                   Software forming part of the Expansion, but
                                   only to the extent that the Purchaser
                                   exercises the Option.

       "Specification"             shall mean those technical and operational
                                   specifications for the Equipment, Software
                                   and System set out in the Proposal and shall
                                   include any additional specifications agreed
                                   between the Contractor and the Purchaser from
                                   time to time to be annexed hereto including
                                   in respect of the Option, if exercised by the
                                   Purchaser.

       "System"                    shall mean the Equipment and the Software
                                   combined on a fully functional and
                                   interactive basis with the GSM System in
                                   accordance with the Proposal.

       "Warranty Period"           shall mean with respect to an item of
                                   Equipment or Software, the period of twelve
                                   (12) months commencing on the date of Initial
                                   Acceptance of that Equipment or Software.

       "Work"                      shall mean all Equipment, Software, Services,
                                   Documentation, and other requirements to be
                                   supplied or carried out or met by the
                                   Contractor under this Agreement including
                                   those in the Expansion (but only to the
                                   extent that the Purchaser exercises the
                                   Option).

B.     A reference in this Agreement to an act or to any regulation, ordinance,
       code or other statutory instrument or to any section or provision thereof
       shall be read as if the words "or any other statutory provision having
       the like or similar effect or dealing with the like or similar subject
       matter" were added to such reference, and such reference shall include
       any statute or statutory provision which amends or replaces, or has
       amended or

<PAGE>

       replaced it, and shall include any sub-ordinate legislation made under
       the relevant statute.

C.     References in this Agreement to Clauses, Paragraphs, Schedules and
       Appendices are to clauses, paragraphs, schedules and appendices of and to
       this Agreement.

D.     In this Agreement, words importing the singular include the plural and
       vice versa, words importing a gender include every gender and references
       to persons include bodies corporate or unincorporate.

E.     Headings in this Agreement are for convenience only and shall not affect
       the construction of this Agreement.

F.     Should there be any ambiguity, conflict or inconsistency between these
       terms and conditions and any of the Appendices and Schedules, these terms
       and conditions shall prevail save as expressly provided for herein.

1.     SCOPE OF WORK

1.1    Subject to Clause 1.4, the Contractor shall:

       (a)    provide the Initial System and, subject to the exercise of the
              Option by the Purchaser, the Expansion in accordance with the
              terms of this Agreement;

       (b)    otherwise provide and execute the Work and for this purpose shall
              provide all necessary personnel, material, equipment, services and
              facilities required under the terms and conditions of this
              Agreement including all appendices and schedules hereto set out
              below and by this reference made part hereof:

<TABLE>
<CAPTION>

<S>                                       <C>
              Appendix A                  Proposed Delivery Schedule
              Appendix B                  Prices and Quantities
              Schedule 1                  Specifications
              Schedule 2                  Scope of Work
              Schedule 3                  Initial Acceptance Certificate
              Annex to Schedule 3         Initial Acceptance Requirements
              Schedule 4                  Customer Advocacy Plan
              Schedule 5                  Confidentiality and Non-Disclosure
                                          Agreement
</TABLE>

       (c)    have the role of contractor during the term of this Agreement in
              accordance with the allocation of responsibilities set out in
              Schedule 2; and

       (d)    if the Option is exercised pursuant to Clause 13 hereof, then
              continue its role as  contractor during the term of the Expansion
              in accordance with the allocation of responsibilities set out in
              Schedule 2 (applicable only, if the Purchaser exercises the
              Option).

1.2    The Purchaser agrees to purchase from the Contractor the Equipment
       comprised in the System and to license from the Contractor the Software
       comprised in the System, and

<PAGE>

       the Contractor agrees to sell and license the same respectively to the
       Purchaser subject to, and in accordance with, the terms of this
       Agreement.

1.3    The Purchaser may at its option exercisable by issuing a purchase order
       to the Contractor which relates to, or includes all or part of the same,
       elect to: (a) acquire from the Contractor any Equipment or Software
       listed in Appendix B as optional in relation to the Initial Work or the
       Expansion (applicable only if the Purchaser exercises the Option) and
       upon the exercise of such option, such Equipment and Software shall form
       part of the Work; or (b) vary the configuration of the Equipment to be
       delivered under the First Delivery or the Second Delivery in accordance
       with the principles set out in paragraph 2(a) of the Letter of Intent, if
       the Purchaser's evaluation of the conditions at Site make such variance
       necessary or desirable for the optimum performance of the System; or (c)
       replace the single billing platform with a multiple, PC-based pre-paid
       platform in accordance with the principles set out in paragraph 2(b) of
       the Letter of Intent.

1.4    For the avoidance of doubt, both parties agree that:-

       (a)    The Purchaser shall not place any orders for the Expansion, or
              otherwise, before the Purchaser has accepted the First Delivery in
              accordance with Clause 3.5; and/or

       (b)    any Equipment Software, Documentation or Services comprised in the
              First Delivery shall be subject to and produced, delivered and
              provided in accordance with all the terms and conditions of this
              Agreement (and in particular but without limitation Appendix A) to
              the extent that they are reasonably capable of applying thereto.

2.     PRICES

2.1    For the full and timely completion by the Contractor of the Work, the
       Contractor shall be entitled to payment by the Purchaser of the prices as
       specified in Appendix B subject to the terms and conditions contained
       herein.  For the avoidance of doubt, if the Purchaser elects to (i) vary
       the configuration of Equipment to be delivered in accordance with Clause
       1.3(b) or (ii) replace any Equipment in accordance with Clause 1.3(c),
       the prices payable by the Purchaser shall be re-evaluated by reference to
       the relevant provisions of the Letter of Intent and by reference to the
       prices stated in Appendix B.

<PAGE>

2.2    Subject to the terms and conditions contained herein, the prices stated
       for the Initial Work in Appendix B shall be fixed provided that the
       Purchaser places purchase orders for the same on or before the date
       falling 7 days after the acceptance of the First Delivery in accordance
       with Clause 3.5 and the prices stated for the Expansion shall be fixed
       until the date falling six months after the acceptance of the Second
       Delivery.

2.3    All prices shall include all transportation and related charges for
       delivery of the items to the Delivery Point and all applicable taxes,
       duties and similar liabilities, other than taxes and duties applicable in
       Sri Lanka.

3.     DELIVERY SCHEDULE AND DELIVERY

3.1    The Contractor shall deliver the Initial System in accordance with the
       Proposed Delivery Schedule specified in Appendix A and shall assist with
       the installation and commissioning of the Initial System in accordance
       with Schedule 2 hereto, time being of the essence of this Agreement.
       Upon exercise of the Option pursuant to Clause 14 in respect of the
       Expansion the Contractor shall deliver the Expansion System in accordance
       with the Proposed Delivery Schedule and shall assist with the
       installation and commissioning of the Expansion System in accordance with
       scope of work agreed between the parties at the time of the exercise of
       the Option, which schedule and scope of work will then be attached and
       comprise a part of this Agreement, time being of the essence of this
       Agreement.

3.2    Delivery of Equipment or Software or completion of Services shall not be
       deemed to have occurred until the Contractor has provided all supporting
       equipment, computer software and services required under the terms of the
       Proposal.  The provision of such Equipment and Services is of the essence
       of this Agreement.

3.3    Subject to Clause 3.2 above, an individual item of delivery of Equipment
       or Software, as the case may be, shall be deemed to have occurred at the
       time it has arrived at the Delivery Point  in a condition fully
       conforming to the requirements of this Agreement.  In the case of
       subsequent rejection of any individual item of Equipment or Software
       delivered, delivery shall be deemed not to have occurred until the
       defects that resulted in such rejection have been satisfactorily remedied
       or replaced with conforming Equipment or Software.

3.4    The Contractor shall be responsible and bear all the costs and liability
       in relation to the shipment of the Equipment to the Delivery Point.

3.5    Without prejudice to Clause 5 or Clause 6.2, for evaluation purposes the
       First Delivery shall only be accepted upon confirmation of satisfactory
       field trial test results.  The field trial test procedures shall be
       mutually agreed between the parties as soon as practicable following
       execution of this Agreement.

<PAGE>

3.6    The Contractor shall liaise with the Purchaser with respect to the
       delivery of each shipment of equipment, including with respect to the
       estimated date of arrival of each shipment, the actual date of arrival
       when it becomes known and any other information relevant to the timely
       and proper collection of the Equipment by the Purchaser from the Delivery
       Point.  Without limiting the foregoing, the Contractor will provide the
       Purchaser will all documentation necessary for the Purchaser to accept
       delivery of and to acquire proper legal title to each shipment at the
       Delivery Point.

4.     ADJUSTMENTS FOR LATE ACHIEVEMENT

4.1    The First Delivery, the Second Delivery, the Initial System or the
       Expansion System (in the latter case, applicable only when the Purchaser
       exercises the Option) must be delivered  in accordance with this
       Agreement and not later than the set Milestones (the "Achievement Time"),
       time being of the essence.  In the event that First Delivery, the Second
       Delivery, the Initial System or the Expansion System (in the latter case,
       applicable only when the Purchaser exercises the Option) or any part
       thereof is not delivered  by the applicable Achievement Time, then upon
       the Purchaser serving a notice to the Contractor advising the Contractor
       of the same, the aggregate price payable in respect of First Delivery,
       the Second Delivery, the Initial System or the Expansion System (in the
       latter case, applicable only when the Purchaser exercises the Option)
       shall, if already paid by the Purchaser, be refunded in accordance with
       Clause 8.3 and such refunds shall be calculated according to the
       following percentages, or if not yet paid by the Purchaser, shall be
       deducted by the following percentages:-

       (a)    5%, if the Achievement Time is delayed by one month or part
              thereof; or
       (b)    6%, if the Achievement Time is delayed by two months or part
              thereof; or
       (c)    7%, if the Achievement Time is delayed by three months or part
              thereof.

       PROVIDED ALWAYS that the time for achievement of a Milestone may be
       extended to the extent reasonable if that Milestone has not been achieved
       by reason of a breach of this Agreement caused solely by the Purchaser,
       provided further that in each case the Contractor has notified the
       Purchaser in writing specifying reasonable particulars of the alleged
       breach within fourteen (14) days after it becomes aware of the relevant
       event or breach.

4.2    The Parties recognise and agree that the sums provided in Clause 4.1 are
       reasonable pre-estimates of the damage which may occur to the Purchaser
       taking into account all the relevant information available at the time of
       signature of this Agreement and that such sums are liquidated damages and
       in no way to be considered as penalties.

<PAGE>

4.3    Nothing in this Clause shall be construed as limiting the right of the
       Purchaser to terminate this Agreement in whole or in part in accordance
       with any provision of this Agreement or at law as a consequence of such
       late delivery or completion.

5.     INSPECTION AND ACCEPTANCE

5.1    Those elements of the Initial Acceptance Tests to be carried out at the
       Contractor's facilities shall be undertaken by the Contractor at least
       fourteen (14) days prior to  delivery of the Initial System and the
       Expansion System respectively.  The Contractor shall give to the
       Purchaser not less than seven (7) days notice in writing of the date and
       time on and at which the aforementioned Initial Acceptance Tests shall be
       performed and the Purchaser shall have the right to be present throughout
       and witness the same.  The Contractor shall within 7 days of completion
       of the tests, supply the test results of the aforementioned Initial
       Acceptance Tests to the Purchaser.

5.2    Those elements of the Initial Acceptance Tests to be carried out at the
       Site shall be undertaken by the Contractor within 10 days after receiving
       written notice from the Purchaser to carry out the same, such notice to
       be given by the Purchaser at least twenty-one (21) days before the
       anticipated commercial launch of the System as specified in the Proposed
       Delivery Schedule.  The Contractor shall give to the Purchaser not less
       than seven (7) days notice in writing of the date and time on and at
       which the aforementioned Initial Acceptance Tests shall be performed and
       the Purchaser shall have the right to be present throughout and witness
       the same. The Contractor shall within 7 days of completion of the test,
       supply the test results of the aforementioned Initial Acceptance Tests to
       the Purchaser.

5.3    Upon completion of the Initial Acceptance Test referred to in clause 5.2,
       the Purchaser shall notify the Contractor either:-

       (a)    of its acceptance of the Initial Acceptance Tests in which case
              Initial Acceptance of the Initial System or the Expansion System
              (in the latter case, only applicable when the Purchaser exercises
              the Option) shall have occurred upon the issuance of an Initial
              Acceptance Certificate; or

       (b)    of those particulars in respect of which the System does not fully
              comply with or perform in accordance with the Specifications and
              the Proposal, then upon remedy of such particulars and compliance
              of the System with the requirements of this Agreement, the
              Purchaser shall accept the Initial System or the Expansion System
              (in the latter case, only applicable when the Purchaser exercises
              the Option) whereupon an Initial Acceptance Certificate shall be
              issued.

       Both parties agree that upon the issuance of the Initial Acceptance
       Certificate, the Initial Acceptance shall be deemed to have occurred.

5.4    (a)    Service Acceptance means acceptance of the Initial System by the
              Purchaser when the Initial System and each and every feature
              thereof described in the Proposal, is compatible and integrated
              with every other item of the System and has operated in a
              technically and commercially acceptable manner to the

<PAGE>

              Purchaser for a consecutive period of ninety (90) days from date
              of connection of the Initial System to the GSM System; or

       (b)    Service Acceptance means acceptance of the Expansion System by the
              Purchaser when the Expansion System and each and every feature
              thereof described in the Proposal, is compatible and integrated
              with every other item of the System and has operated in a
              technically and commercially acceptable manner to the Purchaser
              for a consecutive period of ninety (90) days from date of
              connection of the Expansion System to the GSM System.

       The Purchaser shall issue a Service Acceptance Certificate to the
       Contractor upon the occurrence of Service Acceptance described at 5.4 (a)
       or 5.4 (b) above, as relevant.  Both parties agree that upon the issuance
       of the relevant Service Acceptance Certificate, the relevant Service
       Acceptance, shall be deemed to have occurred.

5.5    The Work may at any time and from time to time be inspected or evaluated
       by the Purchaser and the Purchaser shall notify the Contractor of those
       particulars in respect of which the Work does not fully conform to the
       requirements of this Agreement.

5.6    Remedy of any particulars referred to in this Clause 5 or repeat tests as
       required by the Purchaser shall be effected or undertaken by the
       Contractor at its cost, promptly upon receipt of notice by the Purchaser.
       If the Contractor fails to remedy any such particulars promptly, the
       Purchaser may elect to have any or all such particulars remedied through
       other means, in which event the Contractor shall pay all reasonable costs
       incurred by the Purchaser in so remedying such particular(s); provided
       that the Purchaser shall provide the Contractor with a written notice
       reasonably setting out the reasons that the Purchaser believes that the
       Contractor has failed to remedy such particulars.

5.7    Nothing in this Clause shall relieve the Contractor of its obligation to
       comply with the delivery schedule referred to in Appendix A hereof, nor
       limit the Purchaser's right to terminate this Agreement, in whole or in
       part, in accordance with other provisions of this Agreement or at law.

5.8    If, in relation to the First Delivery, the Second Delivery or the
       Expansion System, the Site is not ready for installation of the relevant
       Equipment within sixty (60) days of the Milestone date applicable to that
       delivery as specified in Appendix A:

       (i)    the Purchaser will be deemed to have accepted the Phase I
              Deployment or Phase II Deployment of the Initial System (or the
              Expansion System), as the case may be) and to have issued an
              Initial Acceptance Certificate in accordance with Clause 5.3(a) on
              the sixty first (61st) day after the applicable Milestone date (or
              the milestone set for delivery of the Equipment to be delivered
              under the Expansion) ; and

       (ii)   the Purchaser will be deemed to have accepted the Phase I
              Deployment or Phase II Deployment of the Initial System (or the
              Expansion System), as the case may be) and to have issued a
              Service Acceptance Certificate under Clause 5.4 (a) or 5.4(b) (as
              relevant) on the ninety first (91st  ) day after the applicable
              Milestone

<PAGE>

              date (or the milestone set for delivery of the Equipment to be
              delivered under the Expansion).

6.     TITLE AND ASSUMPTION OF RISK

6.1    The Contractor warrants to the Purchaser that it will deliver to the
       Purchaser good title to each and every item comprised in the Equipment
       and the rights to use the Software, free from any claim, lien, pledge,
       mortgage, security interest, charge or other encumbrance, including, but
       not by way of limitation, those arising out of the performance of the
       Work.

6.2    Subject to Clause 7 below title to Equipment shall pass to the Purchaser
       upon delivery of the Equipment to the Delivery Point.  After the issuance
       of the relevant Service Acceptance Certificate in respect of any
       Equipment, the Purchaser shall be free to deal with, use, dispose of by
       sale or otherwise, pledge, charge or place any other encumbrance over the
       Equipment, as the Purchaser shall in its sole discretion deem fit.

6.3    The Contractor shall bear the full risk of loss for all Equipment,
       Software and other items of the Work until title thereto has passed to
       the Purchaser pursuant to Clause 6.2.  In the event that any item of Work
       is returned to the Contractor for remedy of any fault or non-performance,
       risk shall pass back to Contractor at the point of dispatch.

6.4    Title to and the rights in Software shall be in accordance with the
       provisions of Clause 10 below.

7.     WARRANTY OF THE WORK, EQUIPMENT, SOFTWARE AND SERVICES

7.1    Without limiting any other warranties or undertakings contained in this
       Agreement or implied by law, the Contractor warrants and undertakes that:

       (a)    each item of the System will in all respects conform to, perform
              in accordance with, have the features and otherwise meet the
              Proposal and Specifications;

       (b)    the System and each item of the Equipment and Software shall be
              properly and completely installed;

       (c)    all the Work to be provided hereunder shall conform in design,
              performance and materials to the requirements of this Agreement
              and shall be free from defects in design, material, performance or
              workmanship for the Warranty Period (however, defects which the
              Purchaser considers to be non substantial and

<PAGE>

              routine in the Software shall not be regarded as a breach of this
              Warranty) and be of the most suitable grade and quality for the
              purpose intended;

       (d)    all Services to be provided hereunder shall be performed in a
              skillful and workmanlike manner, both in accordance with the
              Proposal and all applicable Specifications and other requirements
              of this Agreement;

       (e)    each item of Equipment and Software comprised in the Initial
              System will be compatible and integrated with every other item of
              the System and the Expansion System will be compatible and
              integrated with the Initial System and the System;

       (f)    the Software will conform with the Contractor's then current
              published specifications when delivered and will represent the
              latest and most up to date version; and

       (g)    each item of Equipment and Software supplied by the Contractor
              will not infringe any patent, copyright, trade secrets or
              proprietary rights of the Purchaser and any third party.

       The above warranties ("the Warranties") shall continue to apply
       notwithstanding any acceptance of all or part of the Work, or payment by
       the Purchaser.

7.2    The Purchaser shall be entitled at any time during the Warranty Period
       and irrespective of prior inspections or acceptances, to reject any item
       of the Software or Equipment not conforming with any of the Warranties.
       During the Warranty Period the Contractor shall, at no cost to the
       Purchaser, make good and rectify such Equipment or Software or, at the
       Purchaser's option, the Contractor shall replace any item of Equipment or
       Software not conforming with the Warranties with conforming Equipment or
       Software.  Any Equipment or Software not conforming to any of the
       Warranties shall be repaired or replaced at the Site unless the
       Contractor is not reasonably able to do so in which case it shall be
       returned to the Contractor with risk passing as provided for in Clause
       7.5 hereof.  If the Contractor fails to correct or replace such defective
       Equipment promptly after notification and authorization from the
       Purchaser, the Purchaser may, by agreement or otherwise, correct or
       replace such defective Equipment and recover the cost thereof from the
       Contractor.  After notification of a defect to the Contractor, the
       Purchaser may elect not to require correction or replacement of such
       defective Equipment and, in such event, the Contractor, if required by
       the Purchaser, shall refund such portion of the price as is equitable in
       the circumstances as agreed between the parties or in default of
       agreement as determined under Clause 21.

7.3    The Warranties shall continue as to corrected or replaced items for the
       balance of the Warranty Period of the corrected or replaced item or for
       ninety (90) days after the date of acceptance by the Purchaser of the
       corrected or replaced items, whichever is longer.

7.4    Shipping, freight and insurance charges, in respect of warranty claims
       during the Warranty Period shall be met by the Contractor.  Such charges
       shall be prepaid by the Contractor or, it the Purchaser agrees, paid by
       the Purchaser on the Contractor's behalf in which case any such charges
       shall be reimbursed by the Contractor under Clause 8.3 or may (at the
       Purchaser's option) be set-off by the Purchaser under Clause 8.4.

<PAGE>

       In the event that the parties determine and agree that a warranty claim
       was incorrectly made, the Purchaser shall be liable for such charges in
       respect of that claim.

7.5    Any item replaced will, subject to Clause 7.3 hereof, be deemed to be on
       an exchange basis and the item provided to the Purchaser in exchange
       shall be the sole property of the Purchaser.  Title of the item to be
       replaced shall pass to Contractor on acceptance of the new item by the
       Purchaser.  Risk in the item to be replaced shall pass to Contractor at
       point of dispatch.  Title and risk of the replacement item shall pass to
       the Purchaser upon acceptance of that item.

7.6    The Contractor shall effect repair, correction or replacement of any
       defective item as soon as possible and in any event within thirty (30)
       days from receipt of the item at its facilities or, from the date of
       receipt of notice of defect if the Contractor repairs or replaces the
       defective item at the Site, save where the defect in the sole opinion of
       the Purchaser causes downtime or impacts the performance of the System in
       which case the repair or replacement must be provided in accordance with
       the procedures and time limits specified in the Customer Advocacy Plan.

7.7    Any dispute as to the applicability of any warranty claim shall be
       resolved in accordance with Clause 21 hereof.

7.8    The Contractor shall provide the facilities and services set out in the
       Customer Advocacy Plan. If the Purchaser so requires, the Contractor and
       the Purchaser shall enter into a Maintenance and Support Agreement, in
       the terms of the draft Maintenance and Support Agreement contained in
       Schedule 4. A manager shall be designated as being responsible to the
       Purchaser for provision of facilities and services to be provided under
       the Customer Advocacy Plan (and the Maintenance and Support Agreement, if
       the parties enter into the same). Such manager shall be designated as a
       "Key Person" in accordance with the terms of Clause 17.1 hereof and shall
       be provided with full representative authority to bind the Contractor in
       respect of any warranty claim made by the Purchaser.

7.9    During an emergency, the repair of Equipment or any specific work must be
       performed by qualified staff of the Purchaser, who have undertaken the
       training organized by the Contractor.  The Purchaser shall inform the
       Contractor the details of fault and repair in writing, within 24 hours
       after emergency repair and any work so performed by the Purchaser's staff
       shall not invalidate any Warranties provided reasonable care is taken
       during such repair.

8.     PAYMENTS

<PAGE>

8.1    The applicable fixed prices for the Work set out in Appendix B hereof,
       shall be invoiced by the Contractor as they fall due as follows:

       (a)    ten percent (10%) upon receipt of purchase order for First
              Delivery and the Second Delivery (as provided for in Appendix B)
              in respect of the Initial System or, if later, upon receipt by the
              Purchaser of an import license for the Equipment from government
              authorities in Sri Lanka; and ten percent (10%) upon receipt of
              the purchase order for the Expansion System;

       (b)    sixty-five percent (65%) upon the issuance of the Initial
              Acceptance Certificate in accordance with Clause 5.3 or the deemed
              issuance of the Initial Acceptance Certificate under Clause 5.8;

       (c)    twenty percent (20%) upon receipt of the relevant Service
              Acceptance Certificate as set out in Clause 5.4 or the deemed
              issuance of the Service Acceptance Certificate pursuant to Clause
              5.8; and

       (d)    five percent (5%) upon expiry of the Warranty Period or, if later,
              ninety (90) days after the acceptance by the Purchaser of any
              corrected or replaced items under Clause 7.3.

       (e)    In addition, the Contractor shall be entitled to invoice the
              Purchaser for the price of service orders as described in Appendix
              B, in accordance with the following payment schedule:

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
        MILESTONE                             PAYMENT (% OF CONTRACT / ORDER
                                              SUM)
-------------------------------------------------------------------------------
<S>                                           <C>
        Placement of order (i.e. upon         10 %
        ordering) or, if later, upon receipt
        by the Purchaser of an import
        license for the Equipment from
        government authorities in Sri Lanka
-------------------------------------------------------------------------------
        a.     Customer Training              90 % on completion
-------------------------------------------------------------------------------
        b.     Maintenance Service or On-     Quarterly payment in advance
               site Engineering Support
-------------------------------------------------------------------------------
        c.     Installation & Commissioning   -      same as 8.1 (a) - (d)
-------------------------------------------------------------------------------
</TABLE>

8.2    Each payment in accordance with Appendix B and Clause 8.1 hereof shall be
       paid within thirty (30) days following receipt by the Purchaser of a duly
       executed invoice  correctly submitted by the Contractor certifying that
       all the requirements for a particular payment for which payment is
       claimed have been fully completed.  No partial delivery payments will be
       made.  If the Purchaser concludes that the requirements have not been
       fulfilled, the applicable payment shall not be made until the end of the
       month following the

<PAGE>

       month of receipt of a correctly submitted invoice and after the Purchaser
       has determined that the requirements have been completed.

8.3    REFUNDS BY CONTRACTOR

       Any refund payable by the Contractor under this Agreement shall be paid
       within thirty days (30) following formal written notification by the
       Purchaser of required refund unless deducted by the Purchaser from
       amounts due to the Contractor pursuant to paragraph 8.4 of this Clause.
       Any dispute which may arise from the provisions of this Clause shall be
       resolved in accordance with the terms of Clause 21 hereof.

8.4    RIGHT OF SET-OFF

       Any amount to be paid, credited or refunded by the Contractor to the
       Purchaser under this Agreement may be deducted from any payments due, or
       to become due by the Purchaser to the Contractor on any account.

9.     TAXES AND DUTIES INDEMNITIES

9.1    The Contractor shall assume responsibility for, and shall hold the
       Purchaser harmless from, all taxes, duties, and similar liabilities,
       including any interest or penalties related thereto, which may be
       required to be paid by the Contractor under any present national, or
       local law or laws, which become due by reason of the exportation of the
       Equipment and Software to Sri Lanka and/or the performance of the Work in
       Sri Lanka or any subcontract hereunder, and shall execute and deliver any
       instruments, and comply with any requirements of such laws, as may be
       necessary thereunder to effectuate this Agreement.

10.    OWNERSHIP OF INTELLECTUAL PROPERTY RIGHTS AND SOFTWARE LICENSES

10.1   All Intellectual Property Rights in the Software and Documentation shall
       remain vested in the Contractor.

10.2   The Contractor, as licensor, hereby grants the Purchaser, as licensee, a
       royalty-free, perpetual, non-exclusive, irrevocable, worldwide license in
       the Intellectual Property Rights in the Software and Documentation, for
       which the use fee has been included in this Agreement, in so far as
       necessary to enable the Purchaser to:

       (a)    use the Software and Documentation; and

       (b)    duplicate any Software and Documentation for back-up purposes
              only.

10.3   The Software shall be supplied to the Purchaser in a machine readable
       form or stored in semi-conductor memories.

10.4   A master copy of the Software and Documentation (the "Master Copy") shall
       be kept in escrow by an independent third party agreed between the
       parties.  The Master Copy

<PAGE>

       shall only be released in the circumstances set out in Clause 24.1 (c) or
       upon the receipt of a written demand executed by both parties.

10.5   The Purchaser agrees to take all reasonable steps necessary to ensure
       that the Software is not disclosed or duplicated in whole or in part for
       use by third parties, including those steps the Purchaser would take to
       protect information, data or other property of its own which it regards
       as proprietary or confidential.

10.6   In the event that the Purchaser should dispose, resell or divest itself
       of any Equipment in the System which includes any Software, the Purchaser
       shall promptly notify the Contractor of such activity and ask for the
       Contractor's written consent (such consent shall not be unreasonably
       withheld) to a royalty free transfer of the license referred to at Clause
       10.7.  Such request shall be promptly dealt with by the Contractor.  In
       the event that the Contractor fails to respond to such request by the
       Purchaser within 30 days of the request, the Contractor shall be deemed
       to have given such consent.

10.7   Forthwith upon signing of this Agreement, the Contractor and the
       Purchaser shall execute a software license, on terms to be agreed upon
       between the parties.  In the event of any inconsistency between this
       Agreement and the terms of the software licenses, the provisions of this
       Agreement shall prevail to the extent of any inconsistency.

11.    INTELLECTUAL PROPERTY RIGHTS - WARRANTY AND INDEMNITY

11.1   The Contractor warrants that it has all Intellectual Property Rights
       necessary to enable the Contractor to meet its obligations under this
       Agreement.

11.2   The Contractor further warrants that the supply or undertaking of any
       item of the Work, and the installation and commissioning of the System,
       will not infringe (or cause the Purchaser to infringe by reason of use of
       the System or otherwise) the Contractor's  or any third party
       Intellectual Property Rights.  The Contractor shall indemnify the
       Purchaser completely and at all times from all damages costs and expenses
       arising from any claim or demand based on an allegation of such
       infringement.  The Contractor shall, at the request of the Purchaser,
       defend at the Contractor's own cost any or all such claims or demand.

11.3   In the event of any such claim or demand, or in the opinion of the
       Contractor such a claim or demand is likely, then the Contractor shall at
       its own option and expense either:

       (a)    secure a license or other arrangement to enable the Purchaser to
              continue to use or receive the benefit of the Work undertaken by
              the Contractor and of the System; or

       (b)    modify that aspect of the Work which is claimed to be an
              infringement such that it no longer constitutes an infringement.
              Any such modification shall not degrade performance; or

       (c)    the Contractor shall refund the purchase price to the Purchaser.

<PAGE>

       The provisions of this Clause shall be without prejudice to the
       Purchaser's right of seeking full indemnity from the Contractor as set
       out in Clause 11.2 above.

11.4   Notwithstanding Clause 16, the Contractor shall not be liable in respect
       of any patent infringement or copyright infringement, for incidental or
       consequential damages including but not limited to loss of profit or
       revenues, loss of use of products or any associated equipment, cost of
       capital, cost of substitute products, facilities or services or downtime
       services.

12.    TRAINING

12.1   The Contractor shall provide the training to the Purchaser's staff at the
       costs specified in Appendix B, if the Purchaser elects.

13.    OPTION

13.1   The Purchaser may at its absolute discretion any time on or before the
       date falling six months after the acceptance of the Second Delivery (or
       such later date as the parties shall agree) by notice in writing to the
       Contractor exercise the Option to acquire all or part of the Expansion
       System whereupon the Contractor shall be bound to supply and install the
       Expansion System in accordance with this Agreement.

13.2   Any Equipment, Software, Documentation, or Services ordered pursuant to
       this Clause shall be produced, delivered and provided in accordance with
       all the terms and conditions of this Agreement (and in particular but
       without limitation Appendix A) to the extent that they are reasonably
       capable of applying thereto.

14.    CONFIDENTIALITY

14.1   Each party shall, and shall procure their respective agents and employees
       to keep confidential all trade secrets, technical data or other
       information of a confidential nature belonging to or obtained from the
       other party until same shall have become generally known to persons
       engaged in similar business otherwise than through disclosures on the
       part of the parties or their respective agents or employees.

14.2   As a condition precedent to this Agreement, both parties shall enter into
       a Confidentiality Undertaking in the form attached hereto as Schedule 5,
       and the obligations, notices and covenants thereunder shall be cumulative
       and in addition to those set out in Clause 14.1.  In the event of
       inconsistency between the Confidentiality Undertaking and Clause 14.1,
       the Confidentiality Undertaking shall prevail.

15.    LOSS AND DAMAGE INDEMNITY

15.1   The Contractor shall be liable for, and shall indemnify the Purchaser
       against any expense, liability, loss or claim in respect of personal
       injury to, or death of any person

<PAGE>

       arising out of any negligent act or omission of the Contractor or of any
       person for whom the Contractor is responsible.

15.2   The Contractor shall be liable for and shall indemnify the Purchaser
       against any expense, liability, loss or claim in respect of loss or
       damage to any property insofar as loss or damage arises out of any
       negligent act or omission of the Contractor.

15.3   The indemnities contained in this Clause 15 shall include any Claims by
       the Purchaser for loss of prospective profits or incidental or
       consequential damages.

16.    INSURANCE

16.1   Without limiting the Contractor's obligations, responsibilities and
       liabilities under any other clause of this Agreement, the Contractor
       shall effect and maintain in force the insurance contained in this Clause
       16.

16.2   GENERAL INSURANCE OBLIGATIONS

       (a)    All insurance to be taken out by the Contractor shall be effected
              with insurers or, as the case may be, protection and indemnity
              associations, and in terms approved, in both cases, by the
              Purchaser (which approval shall not be unreasonably withheld) and
              for this purpose the Contractor shall submit to the Purchaser at
              least fourteen (14) days prior to the date for commencement of any
              works under this Agreement the identity of insurers or protection
              and indemnity associations and the terms of such insurances.
              Thereafter the Contractor shall whenever required produce to the
              Purchaser a certificate of insurance and proof of payment of the
              current premiums.  In addition to such certificate of insurance,
              the Contractor shall notify the Purchaser of all policy exclusions
              and conditions which could affect the rights of the Purchaser.
              Provided always that, subject to 16.2 (c), the approval of the
              Purchaser as aforesaid to all insurance which the Contractor is
              obliged to effect shall be a condition precedent to the Contractor
              being given possession of the Site under this Agreement, but shall
              not, for the avoidance of doubt, delay the date for commencement
              of the works pursuant to this Agreement.

       (b)    The Contractor shall bear the cost of all excesses, exclusions and
              limitations applying under all insurance policies, in so far as
              they concern risks for which he is responsible under the terms of
              this Agreement.  In the event of any claims under the insurances,
              any cost that may be incurred by the Purchaser in respect of the
              excesses shall be recoverable from the Contractor by the Purchaser
              as a debt or may be deducted by the Purchaser from any monies due
              or to become due to the Contractor under this Agreement.

       (c)    If the Contractor shall fail upon request to produce to the
              Purchaser satisfactory evidence that there is in force the
              insurance referred to in this Clause 16 or any other insurance
              which he may be required to effect the terms of this Agreement
              then and in any such case the Purchaser may, without prejudice to
              the Purchaser's right to reclaim from the Contractor any premiums
              paid by the Purchaser from the Contractor, give possession of Site

<PAGE>

              to the Contractor to commence works and effect and keep in force
              any such insurance and pay such premium or premiums as may be
              necessary for that purpose and from time to time deduct the amount
              so paid by the Purchaser as aforesaid from any monies due or which
              may become due to the Contractor or recover the same as a debt due
              from the Contractor.

       (d)    Without prejudice to the other provisions of this Clause 16, the
              Contractor shall ensure and shall cause any sub-contractor of any
              tier to ensure that the interest of the Purchaser is endorsed on
              any policy of insurance which provides cover in relation to any of
              the contractor's liabilities under this Agreement.

       (e)    The Contractor shall promptly supply to underwriters and/or
              insurers all documentation and information which they may
              reasonably require to effect and maintain the insurance referred
              to in this Clause 16.

       (f)    The Contractor shall at all times take all necessary precautions
              to prevent loss or damage to the Works or any part thereof and the
              Contractor shall not do anything or cause or permit any of its
              sub-contractors to do anything, whether on or off the Site, which
              would or might, render voidable any policy of insurance required
              by this Agreement.

16.3   Transport Insurance and CONTRACTOR'S EMPLOYEES' COMPENSATION INSURANCE

       (a)    Transport insurance and the Contractor's Employees' Compensation
              Insurance Policy (to the extent applicable to the Contractor's
              obligations under this Agreement) is to be taken out with an
              insurance company approved by the Purchaser.  The policy and
              premium receipt are to be deposited with the Purchaser prior to
              shipment and commencement of the works.

       (b)    The policy shall cover the period from (i) in the case of shipment
              of the Equipment, the date on which the Equipment is transported
              from the Contractor's warehouse in the United States to the date
              on which title to the Equipment is transferred to the Purchaser in
              accordance with this Agreement and (ii) in the case of Employee's
              Compensation Insurance, the date for commencement of the works
              until Service Acceptance in accordance with Clauses 5.4 (a), 5.4
              (b) or 5.8.

       (c)    The Employee's Compensation Insurance policy shall be issued on a
              'Joint Named' basis, i.e. in the name of the Contractor and of all
              Sub-contractors whilst engaged about the works and shall be
              endorsed to cover the Purchaser's liability to employees of the
              Contractor and all sub-contractors under applicable laws in Sri
              Lanka .

16.4   INSURANCE OF WORKS

       (a)    The Contractor shall insure and keep insured in the joint names of
              the Contractor, all sub-contractors, the Purchaser and any other
              parties with an insurable interest that the Purchaser may elect,
              any works together with

<PAGE>

              materials for incorporation therein to the full replacement cost
              plus an additional 10% to cover any additional costs that they may
              arise incidental to the rectification of any loss or damage
              including professional fees, cost of demolition and removal of
              debris.

       (b)    The insurance shall cover the Contractor, all sub-contractors, and
              the Purchaser and any other parties elected by the Purchaser as
              aforesaid against all loss or damage from whatsoever cause arising
              from the date for commencement of the works until the date of
              completion which shall take place upon Service Acceptance in
              accordance with Clauses 5.4 (a), 5.4 (b) or 5.8 (and thereafter in
              respect of risks arising as a result of performance of the
              Warranties, imposed at Clause 7).

16.5   THIRD PARTY INSURANCE

       (a)    The Contractor shall insure in the joint names of the Contractor,
              sub-contractors and the Purchaser against liabilities for death of
              or injury to any person (other than any operative or other person
              in the employment of the Contractor or any of his sub-contractors)
              or for loss of or damage to any property (other than the works)
              arising out of the execution of this Agreement from whatsoever
              cause.

       (b)    The insurance shall be taken out for at least the limit of
              US$7,000,000 in respect of any one occurrence during the period of
              insurance.  If the Contractor considers the above-mentioned limit
              of indemnity for any one accident to be inadequate to cover its
              contractual obligations he is at liberty to increase the limit of
              indemnity but any extra premium shall be at his own expense.

       (c)    The insurance policy shall include a cross liability clause such
              that the insurance shall apply to the Contractor and his
              Sub-contractors and to the Purchaser as separately insured
              parties.

       (d)    The insurance shall cover from the date for commencement of the
              works under this Agreement until Service Acceptance in accordance
              with Clauses 5.4 (a), 5.4 (b) or 5.8.  The policy and premium
              receipts are to be deposited with the Purchaser prior to
              commencement of the works.

       (e)    The policy shall provide that existing property of the Purchaser
              shall be treated as property of a third party for the purposes of
              the policy.

17.    KEY PERSONNEL AND PROGRESS REPORTS

17.1   The Key Person or individual who is necessary for the successful
       performance throughout the term of this Agreement shall be Mr. Arthur T.
       H. Yeung until otherwise notified in writing as set out in Clause 17.2
       below.

17.2   All key personnel designated by the Contractor shall be subject to
       approval by the Purchaser.  Key personnel approved by the Purchaser shall
       not be removed from the

<PAGE>

       performance of the Work unless replaced with personnel of substantially
       equal qualifications and abilities, who are approved by the Purchaser.
       Nothing in this Clause shall relieve the Contractor of any of its
       obligations or its responsibility for any acts or omissions of its key
       personnel under this Agreement.

17.3   The Contractor shall provide to the Purchaser written or verbal progress
       reports regarding the Contractor's activities and progress in connection
       with the Works, at such times as the Purchaser may reasonably require
       (not less than monthly) in such form and disclosing such information as
       the Purchaser may reasonably require.

18.    CHANGES

18.1   Either party may, at any time, by written change proposal, request
       changes to be made to the Specifications.  Upon such change proposal
       being made by either party, the Contractor shall provide the Purchaser
       with a proposed schedule of all alterations which would need to be made
       to the terms and conditions of this Agreement and, if applicable, the
       fixed prices, as a consequence of such proposed change.  The provisions
       of Clause 1.3(b) shall not be considered as a change to the
       Specifications for the purposes of this Clause 18.

18.2   If the parties agree on the implementation of the proposed change,
       including any adjustment to the terms and conditions of this Agreement or
       fixed prices to be made in respect thereof, the Contractor shall proceed
       therewith, as agreed.  If the change has been proposed by the Contractor
       but no such agreement is reached, the proposed change shall not be
       implemented.  If the change has been proposed by the Purchaser, but no
       such agreement is reached, the Contractor shall nonetheless proceed with
       the proposed change if the Contractor could reasonably be expected to
       implement the same, taking into account its abilities and the facilities
       available to it, and an equitable adjustment, if any, to the fixed price
       shall be made in accordance with paragraphs 18.3 and 18.4 hereof.

18.3   If any adjustment is to be made in the fixed prices pursuant to paragraph
       18.2 hereof, the Contractor shall submit to the Purchaser a statement of
       price adjustment, supported by evidence as appropriate, and including a
       detailed breakdown of any increases or decreases in the price of labour,
       materials or other items.  Such statement shall be calculated in
       accordance with the Contractor's regular accounting procedures and shall,
       if required by the Purchaser, be verified at the Purchaser's expense by
       the Contractor's independent auditors.  Any claim by the Contractor for
       an increase in fixed prices shall be deemed waived unless such statement
       is submitted within forty-five (45) days of the date of receipt by the
       Purchaser or the Contractor, as the case may be, of the change proposal
       referred to in paragraph 17.1 hereof.

18.4   If the parties fail to reach agreement on the adjustment of the fixed
       prices, the adjustment shall be determined in accordance with Clause 21
       hereof.  Nothing in this paragraph shall relieve the Contractor of its
       obligation to proceed promptly with the implementation of the directed
       change pursuant to paragraph 18 hereof or with the provision to the
       Purchaser of any Work under this Agreement, as changed.

<PAGE>

19.    ASSIGNMENT OR SUBCONTRACTING OF AGREEMENT

19.1   The Contractor shall not assign, subcontract or delegate, either in whole
       or in part, this Agreement or any of its rights, duties or obligations
       thereunder to any person or entity, use it as capital to establish a
       company, or set up an association with another company for its
       fulfillment, without prior express written approval of the Purchaser,
       which shall not be unreasonably withheld.

19.2   Notwithstanding any conditions under which the Purchaser may, at its sole
       discretion, grant such approval, the Contractor shall remain a guarantor
       to the Purchaser of the performance in accordance with this Agreement and
       all applicable laws, of the assigned, subcontracted or delegated duties
       and obligations.

20.    PUBLICITY RELATED TO AGREEMENT

20.1   The Contractor shall obtain the prior written approval of the Purchaser
       as to the issue, content and timing of news releases, articles,
       brochures, advertisements, prepared speeches or other information
       releases ("Releases") related to the Work or the terms of this Agreement
       (if any), to be issued by the Contractor, a subcontractor or any
       employee, designee, assignee or consultant of either.  Any such Release
       shall be submitted in draft form to the Purchaser for approval as
       aforesaid indicating the countries in which it will appear.  PROVIDED
       THAT the Purchaser's approval shall not be required in respect of any
       disclosures which the Contractor is required to make pursuant to any
       government regulation applicable to the Contractor (but the Contractor
       shall inform the Purchaser in writing of any such disclosure prior to, or
       (if that is not possible) as soon as practicable after such disclosure is
       made).

21.    EXPERT DECISIONS

21.1   This Clause 21 applies to matters which under this Agreement are
       expressly required to be dealt with by this Clause in the event that the
       Purchaser and the Contractor are unable to agree them (namely:- Clauses
       7, 8, 18, and 24).  Any such matter shall be determined by a person
       agreed by the parties or, in default of agreement, nominated at the
       request of either the Purchaser or the Contractor by Institute of
       Engineering in Hong Kong ("Expert") whose decision (acting as an expert
       and not as an arbitrator) shall be final and binding on the parties for
       the purpose of this Agreement .  The costs of the Expert shall be shared
       equally by the Purchaser and the Contractor.  the Purchaser and the
       Contractor shall provide the Expert with such information as the Expert
       may reasonably require.

22.    TIME-LIMITS

22.1   Any time-limit to which this Agreement obliges the Contractor or the
       Purchaser shall be counted from the day following that of the event
       marking the start of the time-limit and shall end on the last day of the
       period laid down.  When the last day of a time-limit is a Sunday or legal
       holiday in the country in which the particular contractual performance

<PAGE>

       is required, to which the time-limit shall apply, this time-limit shall
       be extended to the first working day following.

23.    FORCE MAJEURE

23.1   The term "Force Majeure" as used in this Clause means an event beyond the
       control and without the fault or negligence of the Purchaser, the
       Contractor, or its subcontractors or suppliers hereunder, including acts
       of God, acts of government, fire, flood or storm damage, strikes and
       national labour disputes, earthquakes, war and riot.

23.2   Neither party shall be responsible for delay in performing any obligation
       under this Agreement (other than an obligation as to payment of money)
       within the time-limit required for such performance, due to Force
       Majeure, provided that notice thereof is given to the other party within
       ten (10) days after such event has occurred.

23.3   Upon the occurrence of Force Majeure, and with proper notice as set forth
       above the time-limit for performance shall be extended accordingly,
       provided that the party wishing to rely upon the Force Majeure event
       makes every effort to minimize such delay.  If the delay continues beyond
       a reasonable period, taking into account the requirements of the
       Purchaser for the delayed Equipment or Services or prompt performance of
       any other obligation under this Agreement, the Purchaser may, upon notice
       of thirty (30) days to the Contractor terminate this Agreement in whole
       or in part, without incurring any financial obligations to the Contractor
       as a consequence of such termination.

24.    TERMINATION FOR DEFAULT

24.1   If the Contractor:

       (a)    refuses or fails to proceed with the performance of the Work, or
              any separable part thereof, with such diligence as will ensure its
              completion within the time specified in this Agreement or fails to
              complete the Work within such time and fails to remedy such
              failure or refusal within forty five (45) days of written notice
              from the Purchaser requiring the same; or

       (b)    commits any breach of this Agreement and fails to remedy such
              breach within fourteen (14) days of written notice from the
              Purchaser requiring the same;

       (c)    takes or has taken or instituted against it any action or
              proceeding whether voluntary or compulsory which has as an object
              or is likely to result in the winding up of the Contractor (other
              than a voluntary winding up by members for the purpose of
              reconstruction or amalgamation) or is placed under official
              management or enters into a compromise or other arrangement with
              its creditors or any class of them or if an administrative
              receiver or administrator or receiver or the like is appointed to
              carry on its business or to take control or possession of any of
              its assets for the benefit of its creditors or any of them;

<PAGE>

       (d)    violates any law relating to the prevention of corruption or
              bribery in any jurisdiction;

       the Purchaser may, by notice to the Contractor either:

              (i)    take all or part of the Work not yet performed by the
                     Contractor out of the Contractor's control or out of the
                     control of any other person in whose control or possession
                     such Work or any part thereof may be.  In such event the
                     Purchaser may take-over the Work in whole or in part, and
                     proceed with the same to completion.  The Contractor shall,
                     or shall procure that, forthwith on demand by the Purchaser
                     delivers to the Purchaser all Equipment and Software and
                     components thereof in any way commenced, partly executed or
                     completed under this Agreement and any other things which
                     in the opinion of the Purchaser are necessary for
                     completion of the Work or for the installation and
                     commissioning of the System by the Purchaser.  The
                     Contractor shall be credited for the value of such items as
                     agreed by the Purchaser and the Contractor or in default of
                     agreement as determined by Clause 21 subject always to any
                     liability the Contractor may have to compensate the
                     Purchaser for, or to make good at the Contractor's expense,
                     any breach of this Agreement and shall also procure from
                     any subcontractor, identical rights as are provided herein;
                     and

              (ii)   whether or not the rights under paragraph (i) are
                     exercised, terminate this Agreement, in whole or in part,
                     with immediate effect.

24.2   If the Purchaser so elects to complete all or part of the Works, the
       Contractor shall pay the Purchaser any reasonable costs occasioned by the
       Purchaser in completing the Work or such part of the Work to the extent
       such costs exceed the amount which would have been payable in respect of
       that part of the Work so taken over.

24.3   The rights of the Purchaser under this Clause are in addition to, and
       without prejudice to, or forfeiture of, any other rights or remedies that
       the Purchaser may have under this Agreement or at law as a consequence of
       any default by the Contractor under this Agreement.

25.    GOVERNMENTAL AUTHORIZATION AND COMPLIANCE

25.1   The Contractor warrants that each and every item of Equipment and
       Software and related equipment shall comply with the requirements of the
       Telecommunications Authority applicable in Sri Lanka.

25.2   The Purchaser shall be responsible for obtaining all necessary Sri Lanka
       or foreign government authorizations including but not limited to import
       licenses necessary for the importation, installation and operation of the
       System (subject to the Contractor's obligations under Clause 25.1).  The
       Contractor shall be responsible for obtaining all necessary export
       licenses.

<PAGE>

26.    LANGUAGE AND COMMUNICATION

26.1   The Agreement and all documentation and communications required
       thereunder shall be in the English language.

26.2   All communications pertinent to this Agreement shall be made or confirmed
       in writing, including telex, or facsimile.

27.    NOTICES AND REPORTS

27.1   Any notice or other communication required or permitted to be given by or
       pursuant to this Agreement shall be sufficiently given if given in
       writing and delivered personally or sent by prepaid registered post or
       telex or facsimile to the addresses for the parties specified in Clause
       28.3 or to such other address or such other person as the parties may
       from time to time notify to the other parties in writing.

27.2   Any such notice or other communication issued in accordance with Clause
       28.1 shall be deemed to have been received:

       (a)    if delivered personally, on the date of delivery;

       (b)    if sent by pre-paid post, five (5) days after the date of posting
              unless actually received earlier; or

       (c)    if sent by facsimile, upon confirmation of receipt given to the
              sender by the addressee; or

       (d)    if sent by telex, on receipt of the correct answerback code of the
              addressee at the end of the communication.

27.3   All notices and reports to be provided to the Purchaser or the Contractor
       pursuant to this Agreement shall be sent to the Purchaser or the
       Contractor as follows:

              Position:     Joint Managing Director

              Company:      Lanka Cellular Services (Pvt) Limited

              Address:      4th Floor1119 Maradana RoadColombo 8
                            Sri Lanka

              Position:     Managing Director

              Company:      interWAVE Communications International Ltd.

              Address:      18/F  133 Wanchai Road
                            Wanchai
                            Hong Kong

<PAGE>

       or such other address as may be notified to the other party in accordance
       with this Clause.

27.4   As soon as practicable after the date of this Agreement, the Contractor
       will appoint an agent for service of process in London, England and will
       notify the Purchaser in writing of the name and address of such agent any
       agents appointed in replacement of that agent.

28.    WAIVER AND APPROVALS

28.1   Any failure or delay on the part of the Purchaser in exercising any power
       or right under this Agreement shall not operate as a waiver of such power
       or right.

28.2   Any approvals or consents which may be given by the Purchaser shall not
       prejudice any claim or right of the Purchaser under this Agreement, nor
       constitute any acceptance by the Purchaser of any liability in relation
       to the subject matter of such approval or consent.

29.    ENTIRE AGREEMENT

29.1   This Agreement, the Letter of Intent and the letter agreement dated on or
       about the date of this Agreement confirming certain delivery arrangements
       in relation to the Equipment constitutes the entire Agreement and shall
       apply in connection with the subject matter hereof, and there are no
       other agreements or understandings, written or oral, except as provided
       herein.  Any amendments to or modification of this Agreement except in
       writing and signed by the authorized representatives of the parties
       hereto, shall be void and of no effect.

30.    NO JOINT VENTURE

30.1   Nothing in this Agreement shall be construed to create or evidence a
       partnership or joint venture relationship between the parties hereto.
       Neither party shall hold itself out contrary to the terms of this Clause
       and neither party shall become liable because of any representations, act
       or omissions of the other.  This Agreement is not for the benefit of any
       third party and shall not be deemed to create or evidence any right or
       remedy of any such third party, whether referred to herein or not.

31.    SEVERABILITY

31.1   The whole or any part of any clause in this Agreement that is illegal or
       unenforceable:

       (a)    will be:

              (i)    read down to the extent necessary so that it is legal and
                     enforceable; or

<PAGE>

              (ii)   severed (if it cannot be read down in accordance with
                     paragraph (i);

       (b)    will not affect the continued operation of the remaining
              provisions of this Agreement.

32.    HEADINGS

32.1   The headings to the Clauses of this Agreement are for convenience only
       and shall not be considered for any purpose in interpreting or construing
       this Agreement.

33.    EXPORT CONTROL

       Subject to Clause 35, all Equipment and Software exports will be made
       under the authorization and control of United States export laws and
       regulations adherence to which shall be the sole responsibility of the
       Contractor provided that the liability to The Purchaser under this Clause
       34 shall be limited to an amount equal to two times the total value of
       this Agreement as set out in Appendix B.

34.    RE-EXPORTATION

       The Purchaser shall not, without prior written consent of the Contractor
       and the Office of Export Administration, United States Department of
       Commerce and Department of State, Washington, D.C. 20230, U.S.A.
       knowingly re-export, export, or ship, or cause to be re-exported,
       exported, or shipped, directly or indirectly, any technical data or
       information obtained from the Contractor or from an associated company of
       the Contractor, or any direct or indirect product thereof, to any country
       to which, under the laws of the United States, the Contractor is or may
       be prohibited from exporting its technology or its direct product.  The
       provisions of this clause shall extend automatically to any other
       destination to which the U.S. Office of Export Administration at any time
       during the life of this Agreement restricts or prohibits the export of
       technical data or information or any direct or indirect product thereof.
       The Purchaser's request to the Contractor for direct or indirect
       re-exportation, exportation, or shipping of any technical data,
       information, products obtained from the Contractor or associates of the
       Contractor to any place outside of Sri Lanka shall be handled by the
       Contractor in a timely manner.  In any event, such request by The
       Purchaser shall not be unreasonably withheld by the Contractor.  The
       Purchaser shall also have the right to apply to U.S. Government directly
       for approval of such export.  The Contractor shall provide The Purchaser
       with reasonable assistance in any applications to or dealings with the
       Government of the United States made by The Purchaser.  In the event that
       the Contractor fails to respond to a re-exportation request made by The
       Purchaser within 60 days, the Contractor will be deemed to have consented
       to such re-exportation request.

35.    APPLICABLE LAW

<PAGE>

35.1   This Agreement shall be interpreted, construed and governed by the laws
       of England and the parties hereto submit to the non-exclusive
       jurisdiction of the English courts.

<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly
executed by their duly authorised officers as of     December 1999 and hereby
deem that this Agreement shall be effective from the Effective Date.

For the Contractor:                For the Purchaser:

INTERWAVE COMMUNICATIONS           LANKA CELLULAR SERVICES (PVT) LIMITED
INTERNATIONAL LTD.

By                                 By

-----------------------------           ------------------------------

NAME                                    NAME

-----------------------------           ------------------------------
(PRINT IN BLOCK LETTERS)                (PRINT IN BLOCK LETTERS)

TITLE                                   TITLE

-----------------------------           ------------------------------

DATE                                    DATE

-----------------------------           ------------------------------

WITNESS                                 WITNESS

-----------------------------           ------------------------------

<PAGE>

                                   APPENDIX A

                           PROPOSED DELIVERY SCHEDULE

<PAGE>

                                   APPENDIX A
                                   ----------

                           PROPOSED DELIVERY SCHEDULE
                           --------------------------

<TABLE>
<CAPTION>

ACTIVITIES                                                       MILESTONE
<S>                                                              <C>
FIRST DELIVERY:

Phase I, Deliver first 3 clusters equipment to Sri Lanka         FEB 28,2000

Service Acceptance/proposed commercial launch                    JUN 1, 2000

SECOND DELIVERY:

Phase II, Deliver next 4 clusters equipment to Sri Lanka         APR 30, 2000

Service Acceptance/proposed commercial launch                    AUG 1, 2000
</TABLE>

REMARKS:

i.     The above schedule is the shipment schedule from Redwood City interWAVE.

ii.    The deployment schedule must be in agreement with the availability of
       customer facility such as E1, power sources.

<PAGE>

                                   APPENDIX B

                              PRICES AND QUANTITIES

<PAGE>

                                   APPENDIX B
                                   ----------

                              PRICES AND QUANTITIES
                              ---------------------

<PAGE>

                                   SCHEDULE 1

                                 SPECIFICATIONS

<PAGE>

                                   SCHEDULE 1

                       FEATURE DESCRIPTION FOR RELEASE 4.1

Release 4.1 WAVEXchange supports the following features.

4.1.1  RELEASE 4.1 WAVEXCHANGE ADDITIONAL FEATURES LIST

                               BASE FUNCTIONALITY
                               ------------------

              -      Speech Services: MO, MT (GSM900/DCS1800)
              -      Emergency Calls
              -      Integral HLR/VLR (GSM 3.08)
              -      Internal MAP/C and MAP/D interfaces to HLR/MSC (GSM 9.02
                     MAP specification)
              -      BSSMAP Connection / Connection-less (GSM 8.08)
              -      Call Detail Records (GSM 12.05, ASCII formatted)
              -      Performance Reports (GSM 12.04, with proprietary
                     extensions)
              -      Alarm / Event Management (GSM 12.04, with proprietary
                     extensions)
              -      HLR: 4,000 subscriber capacity on the NSS
              -      Private A-Link Multiplexer (PALIM)
              -      Intelligent Call Routing

                               MOBILITY MANAGEMENT
                               -------------------

              -      Mobility Management Standard (GSM 4.08)

                                 CALL MANAGEMENT
                                 ---------------

              -      Call Management Standard (GSM 4.08; DTAP messages
                     supported)

                             SUPPLEMENTARY SERVICES
                             ----------------------

              -      CallerID
              -      Call Forwarding Unconditional (GSM 2.82)
              -      Call Forwarding Conditional (GSM 2.82)
              -      Call Hold (GSM 2.83)
              -      Call Waiting (GSM 2.83)
              -      Call Transfer (GSM 2.91)
              -      Intra-WAVEXchange FAX / Data Services (GSM 2.02 / 2.03)

              BSS SERVICES

              -      No cycling of MS Power
              -      MS Dynamic Power Control on RxQual and RxLev

<PAGE>

              -      Separate Settable HO Margins
              -      MS fast Power Down
              -      Speed Sensitive Microcell HO
              -      BTS Daisy Chain (up to 3)
              -      12.21 standard A-bis Interface to BTS
              -      Racal BSS Testing Support
              -      E1 & TRX  Hot Swap
              -      Enhanced Network Performance Statistics

In addition to Release 4.1 BSS features, the following listed BSS additional
features of Release 2.0 and 3.0 are also equipped with BSS deployment software
load. They are:

4.1.2  RELEASE 2.0 BSS ADDITIONAL FEATURES LIST

              -      No cycling of MS Power
              -      MS Dynamic Power Control on RxQual and RxLev
              -      Separate Settable HO Margins
              -      MS fast Power Down
              -      Speed Sensitive Microcell HO
              -      12.21 standard A-bis Interface to BTS
              -      Racal BSS Testing Support
              -      TRX  Hot Swap
              -      Enhanced Network Performance Statistics
              -      GSM Data Services

4.1.3  RELEASE 3.0 BSS ADDITIONAL FEATURES LIST

              -      BSC capacity :- up to 30 TRXs per BSC;  up to 16 BTSs per
                     BSC
              -      DCS1800 Full-band Radio (WE/MX)
              -      Antenna Receive Diversity
              -      Dynamic Power Control
              -      Direct Retry (Phase 1 and Phase 2 mobiles)
              -      3 TRXs per WAVEXpress BTS
              -      Pre-process Measurement at BTS
              -      WE Daisy-Chain (No Bypass)

RELEASE 4.1 BSS ADDITIONAL FEATURES LIST

              The BSS deployment software load for this project will be Release
              4.1 BSS load; the additional features of this load are summarized
              as below:

<PAGE>

              -      SMS Cell Broadcast
              -      Settable Handover Margin by cell
              -      DTX Downlink
              -      Call Trace -  Phase 1
              -      Double BCCH (BA) Allocation
              -      Call Queuing
              -      Idle Channel Interface Over Threshold Notification
              -      Very Early Assignment
              -      Direct Retry on Congestion
              -      Automatic Hardware Detection
              -      BSC Dual Band - GSM900 & GSM1800
              -      N-2 Software Support
              -      Alarm Management Enhancement
              -      Y2K Compliance

              with detailed elaboration of each feature as below:

4.1.4.1 SMS CELL BROADCAST

              This SMS Cell Broadcast service is analogous to the teletext
              service. It permits a number of unacknowledged general messages to
              be broadcast to all receivers within a particular region. SMSCB
              messages are broadcast to defined geographical areas known as cell
              broadcast areas. These areas may comprise of one or more cells, or
              may comprise the entire PLMN.

              It provides SMS Cell Broadcast capability as defined GSM
              Specification 03.41. It's capabilities and benefits are:

              -      Ability to enter, delete, modify and schedule cell
                     broadcast messages from the OMC.

              -      Supports Background and Normal Messages.

              -      Allows operator to offer specialized services.

              -      Using cell broadcast message it may be possible to indicate
                     on a subscriber's MS whether he is using the in-building
                     network or the PLMN.

4.1.4.2 SETTABLE HANDOVER MARGIN BY CELL

              There are two main types of radio based handover processing
              defined in GSM, namely Rescue and Confinement. Rescue handover is
              performed based on preprocessing RF measurement data collected in
              the uplink and downlink. Both the signal level and quality, and MS
              distance together with the settings of O&M parameters are
              considered to determine the necessity of handover and to evaluate
              the target candidate cell list. Similarly, confinement handover
              decision is made by comparing the computed power budget values
              with a set of O&M thresholds. The

<PAGE>

              feature O&M parameters are introduced to allow greater flexibility
              for the operator to control over the handover decision making
              process.

              It provides the ability to set handover margins on a per cell
              basis. It's capabilities and benefits are:

              -      The settable parameters are Power Budget, RX level and
                     Quality.

              -      Provides greater flexibility to operator to control the
                     handover decision making process.

4.1.4.3 DTX DOWNLINK

              It provides DTX downlink support in addition to existing uplink
              support as defined in GSM Specification 06.31. It's capabilities
              and benefits are:

              -      DTX downlink capabilities is set on a per cell basis by the
                     OMC. This means the BTS can override the request from the
                     MSC.  This is, the BSS can make ultimate decision on
                     providing DTX downlink.

              -      DTX aims at increasing the system efficiency through
                     decrease of the interference level, by inhibiting the
                     transmission of the radio signal when not required from an
                     information point of view.  DTX feature is optional and
                     must therefore be managed.

4.1.4.4 CALL TRACE

       This functional specification describes the Call Trace feature and its
       implementation in the interWAVE WAVEXpress/BSC and WAView/OMC.

       As described in GSM 12.08: The trace facility enables customer
       administration and network management to trace the activities of various
       entities when specific events occur within the PLMN.  This facility
       should also enable the tracing of all the information that is available
       to the PLMN concerning the call path used by the associated entity.

       After integration of the Call Trace functionality into the BSS, the BSC
       will respond to MSC to BSS Invoke Trace messages by compiling trace
       records, and forwarding trace records to an OMC.  The BSS implementation
       of Call Trace will incorporate only a subset of the BSS Call Trace
       functionality defined in GSM 12.08.

       It provides the essential subscriber and equipment trace functionality as
       defined in GSM Specification 12.08.  It's capabilities and benefits are:

       -      Support for 08.08 MSC and BSS Invoke Trace Messages.

       -      Support for normal and priority Basic, Handover and Radio
              BSS Trace Types.

       -      GSM 12.08 Standard BSS Trace Record viewable from OMC.

       -      Enables an operator to trace the activities of various
              network entities when specific events occur within the PLMN
              including the call path used by the entity.

       -      Satisfies regulatory requirement in most countries.

<PAGE>

4.1.4.5 DOUBLE BCCH (BA) ALLOCATION

       The purpose of this feature is to maintain two sets of neighbor lists
       within the BSS. One set is used by the mobile while it is camping on the
       cell in the IDLE mode. The other set is used by the mobile while a call
       is active on the Mobile. This feature allows more control on a cell
       traffic. This feature is useful in case of overlay/underlay cell, where
       the mobile camps on the macrocell in Idle mode and when the call is
       active, it handed over to underlay micro cell where it will have
       different list of neighbors.

       In order to take advantage of this feature, the operator is recommended
       to place all cells in the idle mode list, but only neighboring cells in
       the active list. Since all cells are in the idle list, the mobile will
       not try to reach the cells it was near when it is powered off. This could
       avoid the problem with mobiles accessing cells that are far away when a
       user powers-up the phone.

       It provides capability to maintain both an idle and an active mode
       neighbour list within the BSS. It's capabilities and benefits are:

              -      Allows more control on cell traffic.

              -      It is useful in cases of overlay/underlay cell plan that
                     the mobile camps on the macrocell in idle mode and
                     subsequently is handed over to the underlay microcell.

4.1.4.6 CALL QUEUING

       It provides Call Queuing function as defined in GSM Specification 08.08,
       GSM 04.22 and GSM 12.20.  It's capabilities and benefits are:

              -      Support for queuing during initial assignment, subsequent
                     assignment and handover, and queuing priority.

              -      Support to set queue length, enable/disable priority,
                     assignment request time limit  and handover request time
                     limit from the OMC.

              -      Provides full compliment of viewable operational
                     statistics.

              -      Provides operator the ability to reduce call failure rate.

4.1.4.7 IDLE CHANNEL INTERFERENCE OVER THRESHOLD NOTIFICATION

       The goal of this feature to send a notification to OMC in case
       interference level crosses a threshold set by the operator. BSS shall
       support 6 quality bands and a measurement period. The alarm threshold
       should be settable between 0 and 5. OMC threshold bands should be part of
       templates.

       This feature requires BSS to send a minor alarm every time the
       interference on an Idle TCH/F channel crosses the threshold set by the
       operator. The alarm should be sent as a FailureEventReport against TrxCh
       object with severity as MINOR. BSS should also send a clearing event if
       the interference level goes below threshold set by the operator. BSS
       should keep the history of alarm to reduce the number of alarms sent to
       OMCR. Idle Channel Interference over Threshold alarm is sent for a TrxCh,
       BSS

<PAGE>

       should not repeat the alarm in case interference level for the same TrxCh
       remains above threshold value during next measurement period.

       Operator shall be able to set the threshold value per BTS basis.  All the
       trxch in a bts will use the same threshold value for notification of Idle
       Channel Interference Measurement over Threshold. The default value of
       this threshold should be set to 4.  BSC should also send a major alarm
       against TRX object if half or more than half of these trx channels
       crosses threshold value for interference level.  Operator should also be
       able to disable TrxCh alarms and just see the TRX alarm.

       In existing design we support 6 bands for Idle Channel Interference level
       defined in HandCont object under Bts object.  Operator can set the range
       for all the 6 bands through OMC/NMI.  Default values are shown in the
       table given below.

<TABLE>
<CAPTION>

----------------------------------------------------
         Band       Default Range
----------------------------------------------------
<S>                   <C>
             0        < -110 dBm
----------------------------------------------------
             1        -110 dBm  to  -105 dBm
----------------------------------------------------
             2        -105 dBm  to  -100 dBm
----------------------------------------------------
             3        -100 dBm  to  -95 dBm
----------------------------------------------------
             4        -95 dBm  to  -90 dBm
----------------------------------------------------
             5        > -90 dBm
----------------------------------------------------
</TABLE>

       It provides OMC notification when operator defined Idle Channel
       Measurement thresholds are exceeded.  It's capabilities and benefits are:

       -      The BSS will send a minor alarm to then OMC every time the
              interference level on an idle TCH/F Channel crosses the operator
              defined threshold.

       -      The threshold is settable per BTS from the OMC.

       -      Interference measurements are based on average of measurements
              taken over two minutes intervals.

       -      Provides improved measurement and diagnostic capability.

4.1.4.8 VERY EARLY ASSIGNMENT

       It provides Very Early Assignment as defined in GSM Specification 04.08,
       05.08, 08.08 ad 08.58.  It's capabilities and benefits are:

       -      VEA provides the ability to allocate a TCH at initial assignment,
              when it is probable that the requested connection will need such a
              channel.

       -      The following options are selectable from the OMC: disable, enable
              all, enable emergency calls only, enable only if all SDCCHs are in
              use, enable for emergency call or only if all SDCCHs are in use.

       -      Very early assignment scheme allows the network operator to
              minimize the number of SDCCH channels, thereby maximizing the
              number of TCH channels available. This can result in an increase
              in the call carrying capacity of the cell.

<PAGE>

4.1.4.9 DIRECTED RETRY ON CONGESTION

       When a connection is established, the cell is chosen by the MS according
       to the C1 or C2 cell selection/reselection criterion based on the
       downlink measurements and MS maximum transmission power only.  BSS may
       not agree this is the best cell because the uplink reception quality is
       not taken into account.  Therefore, when a TCH is to be assigned, a
       handover to another cell might be necessary due to the lack of channel
       resources or congestion in the original cell.  This process of
       SDCCH-to-TCH handover at the time of call set-up is called Directed
       Retry.

       Directed Retry On Congestion will make use of the congestion information
       in the original as well as the target cell. When a connection is
       requested and directed retry feature is enabled by the operator, a check
       will be made to verify that the congestion in the given cell is below an
       operator defined threshold, before making a request for a traffic
       channel. If the given cell is already congested, preferred target list
       generated from measurement reports will be used for directed retry. Flow
       chart at the end of the document illustrates the steps for this feature.

       The main thrust is to give more preference to ongoing calls by reserving
       some capacity per cell for incoming handover requests for ongoing calls.
       New O&M parameters are provided to allow the operator to specify the
       traffic load threshold (ranges from 0 to 100%) and the current level of
       traffic congestion (ranges from 0 to 100%).

       The purpose of this feature is to add the ability to consider the
       congestion level of a cell before requesting a traffic channel in that
       cell as a result of a directed retry.  It's capabilities and benefits
       are:

       -      Can be enabled/disabled from OMC.

       -      Provides the operator with the ability to give preference to
              on-going calls by reserving capacity on a per cell basis for HO
              requests.

4.1.4.10       AUTOMATIC TRX HARDWARE DETECTION

       The purpose of this feature is to allow hot insertion and removal of a
       TRX Module in WAVEXpress Chassis.  It's capabilities and benefits are:

       -      Automatic detection and update of a module insertion or removal.

       -      Automatic triggering of diagnostic tests upon insertion.

       -      OMC notification of changes.

       -      OMC update of module identification information

       -      Minimizes downtime due to repairs or system upgrades.

       -      Improves reliability of module identification information.

<PAGE>

4.1.4.11       BSC DUAL BAND - GSM900 & DCS1800

       The purpose of this feature is to provide BSC support for the management
       of both GSM900 and DCS1800 Base stations.

       It supports only string configuration with maximum of four BTS connected
       in chain. The limitation of four comes from the E1 card's current
       hardware, which can only support four Lapd connections.  The philosophy
       followed for the string configuration is during the initialization of
       BTS, a passthrough will be connected by making cross connects in wave
       express and  programming the time slot assignment ram in micro.  All the
       port 0 channels are connected to port 1 channels except the Lapd channel,
       which is read from flash.  This Lapd channel has to be programmed in
       flash before commissioning the BTS.  BTS will try to establish Lapd
       connection with BSC using this timeslot.  As soon as abismgr on the BSC
       having the same e1chan is unlocked, Lapd connection will be established
       and BTS will try to come up.  Care is to be taken that no two BTS in the
       chain should be programmed to come up on the same E1 Lapd channel.  If
       this is done then more distant BTS on the chain will not come up.  After
       BTS comes up, TRX channels will be connected to abis on getting
       notification from  BSC.  Thus Abis channels connected to TRX will also be
       dropped from passthrough. In short all the channels used by a particular
       BTS will not be passed through, while the rest will be.  In case of warm
       start TRX channels will be disconnected from abis channels and these
       disconnect abis channels will be made passthrough.  Also whenever TRX
       channel are disconnected, a passthrough will be connected on the
       corresponding abis channels.

       It's capabilities and benefits are:

       -      General compliance with GSM 03.26 "Multi-band operation of GSM/DCS
              1800 by a single operator.

       -      Operator selectable option of single-band or mixed-band neigbour
              mode.

       -      Operation of mixed-band BTSs in a daisy chain configuration.

       -      Ability to prioritize GSM900 or DCS1800 on cell selection and
              handover.

       -      Provides enhanced capacity due to sharing of BSC and E1 resources.

4.1.4.12       N-2 SOFTWARE SUPPORT

       It provides the ability to upgrade Release N-1 or N-2 BSS to Release N
       BSS without shutting down the BSC.  It's capabilities and benefits are:

       -      The N-2 compatibility feature only implies general GSM 12.21 and
              08.58 interface and functionality between the BSC and then BTS.
              Release specific compatibility must be addressed on a feature by
              feature basis.

       -      Minimizes down time during upgrade of network.

4.1.4.13       ALARM MANAGEMENT ENHANCEMENT

       It provides new TRX and E1 alarms, which consider the service impact to
       the parent BSC or BTS.  It's capabilities and benefits are:

<PAGE>

       -      Applies to TRX and E1 Port Objects only.

       -      Introduces a new attribute and severity, which represent the
              service impact of a TRX or E1 Port alarm on the parent BSC or BTS.

       -      Severity is determined dynamically based on the local severity of
              an event multiplied by a weighting factor based on a variety of
              factors including quantity and use of modules.

       -      Severity classes include Ceased, Critical, Major, Minor, Warning
              Level and indeterminate.

       -      Provides ability to report child object alarms based on service
              impact to parent object when reporting alarm.

<PAGE>

SECTION 4.2 -  PRODUCT SPECIFICATIONS

4.2.1 WAVEXCHANGE CAPACITIES

       Functional capacities of the WAVEXchange hardware are shown in Table 1.

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
<S>                          <C>
      BSS Support            5 BSC with up to 16 BTS per BSC and
                             up to 60 TRX
-------------------------------------------------------------------------------
      HLR capacity           4000 subscriber record
-------------------------------------------------------------------------------
      Total Subscribers      2000 at 0.1 Erlangs
      Support
-------------------------------------------------------------------------------
                             TABLE 1 - WAVEXCHANGE
</TABLE>

4.2.2  WAVEXPRESS/BTS CAPACITIES

Functional capacities of the WAVEXpress/BTS hardware are shown in Table 2.

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
<S>                                 <C>
        Number of TRX per BTS       3 TRX per BTS
-------------------------------------------------------------------------------
                            TABLE 2 - WAVEXPRESS/BTS
</TABLE>

4.2.3  TURBOWAVE/BTS CAPACITIES
       Functional capacities of the TurboWAVE/BTS hardware are shown in Table 3.

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
<S>                                 <C>
        Number of TRX per BTS       2 TRX per BTS for 4 watts in 1 ant.
                                    operation
                                    2 TRX per BTS for 8 watts in 2 ant.
                                    operation
                                    1 TRX per BTS for 16 watts in 1 ant.
                                    operation
-------------------------------------------------------------------------------
                            TABLE 3 - TURBOWAVE/BTS
</TABLE>

<PAGE>

4.2.4  WAVEXPRESS/BSC CAPACITIES
       Functional capacities of the WAVEXpress/BSC hardware are shown in Table
       4.

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
<S>                                 <C>
        BTSs per BSC                16 BTSs supported per BSC
-------------------------------------------------------------------------------
        Daisy Chain                 Up to 4 BTS per chain
-------------------------------------------------------------------------------
        TRX Per BSC                 30 TRX supported per BSC
-------------------------------------------------------------------------------
        Interface Links             maximum of (16) E1 links (2.048 Mb/s)
-------------------------------------------------------------------------------
        A-Interface Support         A-interface to Siemens MSC
                                    A-interface to Nokia MSC
                                    A-Interface to Ericsson MSC
                                    A-Interface to Lucent MSC
                                    A-Interface to Alcatel MSC
                                    A-Interface to Nortel MSC
-------------------------------------------------------------------------------
                            TABLE 4 - WAVEXPRESS/BSC
</TABLE>

<PAGE>

4.2.5  WAVEXCHANGE, WAVEXPRESS/BTS/BSC & TURBOWAVE/BTS PLATFORM SPECIFICATIONS
       General specifications of the WAVEXchange, WAVEXpress/BTS/BSC &
       TurboWAVE/BTS platform.

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
<S>                                 <C>
        Chassis                     9 Slot 6U Eurocard Form Factor; Front
                                    Panel Service Access
-------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
-------------------------------------------------------------------------------
        Weight                      Approx. 20 kg full configuration
-------------------------------------------------------------------------------
        Operating Temperature       00C to +450C
-------------------------------------------------------------------------------
        Humidity                    10% to 90% non-condensing
-------------------------------------------------------------------------------
        Thermal Shock               +50C per minute
-------------------------------------------------------------------------------
        Altitude                    -300 to +3000 Meters
-------------------------------------------------------------------------------
        Vibration acceleration      5 to 100 Hz with 2G acceleration
-------------------------------------------------------------------------------
        Mechanical Shock            20 G for 6 msec (half sine)
-------------------------------------------------------------------------------
        Power Consumption           350 W power supplies (Modular)
-------------------------------------------------------------------------------
        Input Power Options         Single AC line (with 20 A min. @ 110 VAC)
                                    or -48 VDC
-------------------------------------------------------------------------------
        AC Input Power              90-130 & 180-264 VAC auto selecting 47-63
                                    Hz
-------------------------------------------------------------------------------
        AC Input Protection         Fused
-------------------------------------------------------------------------------
        Power Specifications:            V(min)          V(max)      AMPS(max)
-------------------------------------------------------------------------------
        AC Input                      90 VAC         264 VAC        10 Amps @
                                     (47-63Hz)       (47-63Hz)      85 VAC
-------------------------------------------------------------------------------
        -48VDC Input                     -35 VDC        -63 VDC       20 Amps
-------------------------------------------------------------------------------
        Power Factor                0.65
-------------------------------------------------------------------------------
        Input Harmonic Current      IEC555-2 & EN60555-2 Compliant
-------------------------------------------------------------------------------
        Leakage Current             Less than 3.5 mA
-------------------------------------------------------------------------------
        AC In-rush Limiting         Turn on in-rush current will not exceed 80
                                    Amps peak
-------------------------------------------------------------------------------
        Input Transient Protection  Per IEEE C62.41, Category A3.IEC-801-2,
                                    -3,-4,-5 (level 3)
-------------------------------------------------------------------------------
        Cooling                     Forced Air 160 cfm, front intake/exhaust
                                    (not inc. power supplies)
-------------------------------------------------------------------------------
TABLE 5 -  WAVEXCHANGE, WAVEXPRESS & TURBOWAVE PLATFORM SPECIFICATIONS
</TABLE>

<PAGE>

4.2.6  WAVEXchange TECHNICAL DETAILS
       Specifications of the Combo Switch/BSC/BTS hardware are shown in Table 6.

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
<S>                                 <C>
        Standards Supported         ETSI GSM Phase 2
-------------------------------------------------------------------------------
        Features Supported          Call forward, call barring, call waiting,
                                    interface with PABX and Public MSC, Base
                                    station Controller; GSM RF management,
                                    encryption, power supply redundancy.
-------------------------------------------------------------------------------
        Mobile Interface            GSM full-rate RF interface, 2400 - 9600
                                    bps transparent data and (enhanced full
                                    rate capability in Release 5.0).
-------------------------------------------------------------------------------
        Trunk interface             G.703 compliant, E1 - ISDN/PRI or R2 for
                                    PABX and PALIM for MSC
-------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
-------------------------------------------------------------------------------
        Weight                      Approx. 20 kg
-------------------------------------------------------------------------------
        Volume                      81.9 liters
-------------------------------------------------------------------------------
        Operating Temperature       0 (0)C to +45 (0)C
-------------------------------------------------------------------------------
        Humidity                    10 % to 90 % non-condensing
-------------------------------------------------------------------------------
        Thermal Shock               IEC 68-2-14
-------------------------------------------------------------------------------
        Power Requirement           Power consumption: 150 watts, 110/220
                                    volts 50-60 Hz AC, -48 volts DC.
-------------------------------------------------------------------------------
                         TABLE 6 - COMBO SWITCH/BSC/BTS
</TABLE>

<PAGE>

4.2.7  WAVEXPRESS INDOOR BTS TECHNICAL DETAILS
       Specifications of the WAVEXpress Indoor BTS hardware are shown in Table
       7.

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
<S>                                 <C>
        Number of TRX per BTS       Up to 3 TRX per BTS
-------------------------------------------------------------------------------
        Tx Frequency Range          GSM900: 935 - 960 MHz
-------------------------------------------------------------------------------
        Rx Frequency Range          GSM900: 890 - 915 MHz
-------------------------------------------------------------------------------
        Channel Spacing             200 KHz
-------------------------------------------------------------------------------
        Transmitter Output Power    Approx. 2 Watts
-------------------------------------------------------------------------------
        Standards Supported         ETSI GSM Phase 2
-------------------------------------------------------------------------------
        Features Supported          Base station Transceiver Station; GSM RF
                                    management, data and fax, short message
                                    service, antenna receive diversity,
                                    encryption, optional TRX and power supply
                                    redundancy, star and daisy chain
                                    configuration.
-------------------------------------------------------------------------------
        Mobile Stations Supported   GSM-compliant mobile station (phase 1&2)
-------------------------------------------------------------------------------
        Mobile Interface            GSM full-rate RF interface, 2400 - 9600
                                    bps transparent data and (enhanced full
                                    rate capability in Release 5.0).
-------------------------------------------------------------------------------
        Trunk interface             G.703 compliant, E1.
-------------------------------------------------------------------------------
        Dynamic Power Control       12 dB in 2 dB Step
-------------------------------------------------------------------------------
        Receiver Sensitivity        Typical - 105 dBm
-------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
-------------------------------------------------------------------------------
        Weight                      Approx. 20 kg
-------------------------------------------------------------------------------
        Volume                      81.9 liters
-------------------------------------------------------------------------------
        Operating Temperature       0 (0)C to + 45 (0)C
-------------------------------------------------------------------------------
        Humidity                    10 % to 90 % non-condensing
-------------------------------------------------------------------------------
        Thermal Shock               IEC 68-2-14
-------------------------------------------------------------------------------
        Power Requirement           Power consumption: 150 watts, 110 / 220
                                    volts 50 - 60 Hz AC, - 48 volts DC.
-------------------------------------------------------------------------------
                        TABLE 7 - WAVEXPRESS INDOOR BTS
</TABLE>

<PAGE>

4.2.8  TURBOWAVE/BTS TECHNICAL DETAILS
       Specifications of  TurboWAVE/BTS hardware are shown in Table 8.

<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
<S>                                 <C>
        Number of TRX per BTS       Up to 2 TRX per 4 watts TurboWAVE/BTS
-------------------------------------------------------------------------------
                                    Up to 2 TRX per 8 watts TurboWAVE/BTS
-------------------------------------------------------------------------------
        Tx Frequency Range          GSM900: 935 - 960 MHz
-------------------------------------------------------------------------------
        Rx Frequency Range
                                    GSM900: 890 - 915 MHz
-------------------------------------------------------------------------------
        Channel Spacing             200 KHz
-------------------------------------------------------------------------------
        Antenna Power               Up to 4 watts with 2 TRX in 1 ant.
                                    operation
                                    Up to 8 watts with 2 TRX in 2 ant.
                                    operation
-------------------------------------------------------------------------------
        Standards Supported         ETSI GSM Phase 2
-------------------------------------------------------------------------------
        Features Supported          BTS; GSM RF management, data and fax,
                                    short message service, encryption,
                                    optional TRX and power supply redundancy,
                                    star and daisy chain configuration.
-------------------------------------------------------------------------------
        Mobile Stations Supported   Any GSM-compliant mobile station (Phase 1
                                    and 2)
-------------------------------------------------------------------------------
        Mobile Interface            GSM full-rate RF interface, 2400 - 9600
                                    bps transparent data and enhanced full
                                    rate capability.
-------------------------------------------------------------------------------
        Trunk interface             G.703 compliant, E1.
-------------------------------------------------------------------------------
        Dynamic Power Control       12 dB in 2 dB Step
-------------------------------------------------------------------------------
        Receiver Sensitivity        Typical - 111 dBm
-------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
-------------------------------------------------------------------------------
        Weight                      Approx. 20 kg
-------------------------------------------------------------------------------
        Volume                      81.9 liters
-------------------------------------------------------------------------------
        Operating Temperature       0 (0)C to + 45 (0)C
-------------------------------------------------------------------------------
        Humidity                    10 % to 90 % non-condensing
-------------------------------------------------------------------------------
        Thermal Shock               IEC 68-2-14
-------------------------------------------------------------------------------
        Power Requirement           Power consumption: 250 watts, 110 / 220
                                    volts 50 - 60 Hz AC, - 48 volts DC.
-------------------------------------------------------------------------------
                            TABLE 8 - TURBOWAVE/BTS
</TABLE>

<PAGE>

4.2.9  WAVEXPRESS BSC TECHNICAL DETAILS
       Specifications of the WAVEXpress BSC hardware are shown in Table 9.
<TABLE>
<CAPTION>

-------------------------------------------------------------------------------
<S>                                 <C>
        Number of E1 interfaces     Up to 16 E1 links per BSC
        per BTS
-------------------------------------------------------------------------------
        BTS RF Protocols Supported  GSM 900; GSM1800
-------------------------------------------------------------------------------
        GSM/PCS Interface           A and Abis
        Supported
-------------------------------------------------------------------------------
        Standards Supported         ETSI GSM Phase 2
-------------------------------------------------------------------------------
        Features Supported          Base Station Controller (BSC); GSM RF
                                    Power management, data and fax, short
                                    message service, optional CPU  and power
                                    supply redundancy, local TRAU integrated
                                    with Abis E1 card.
-------------------------------------------------------------------------------
        Mobile Stations Supported   Any GSM-compliant mobile station (Phase 1
                                    and 2)
-------------------------------------------------------------------------------
        Mobile Interface            GSM full-rate RF interface, 2400 - 9600
                                    bps transparent data and enhanced full
                                    rate capability.
-------------------------------------------------------------------------------
        Trunk interface             G.703 compliant, E1.
-------------------------------------------------------------------------------
        Chassis Size                23 cm (width) x 65 cm (height) x 36 cm
                                    (depth)
-------------------------------------------------------------------------------
        Weight                      Approx. 20 kg
-------------------------------------------------------------------------------
        Volume                      81.9 liters
-------------------------------------------------------------------------------
        Operating Temperature       0 (0)C to + 45 (0)C
-------------------------------------------------------------------------------
        Humidity                    10 % to 90 % non-condensing
-------------------------------------------------------------------------------
        Thermal Shock               IEC 68-2-14
-------------------------------------------------------------------------------
        Power Requirement           Power consumption: 150 watts, 110 / 220
                                    volts 50 - 60 Hz AC, - 48 volts DC.
-------------------------------------------------------------------------------
                            TABLE 9 - WAVEXPRESS BSC
</TABLE>

<PAGE>

                                   SCHEDULE 2

                                  SCOPE OF WORK

<PAGE>

                                   SCHEDULE 2
                                   ----------

                 SCOPE OF SERVICE WORK AND INSTALLATION SERVICES
                 -----------------------------------------------

2.1    SCOPE OF SERVICE WORK

<TABLE>
<CAPTION>

<S><C>
----------------------------------------------------------------------------------------------------------------
 ITEM  DESCRIPTION OF              SCOPE OF RESPONSIBILITIES OF         SCOPE OF RESPONSIBILITIES OF LANKA
       RESPONSIBILITIES            interWAVE COMMUNICATIONS             CELLULAR SERVICES (PRIVATE)
                                   INTERNATIONAL LTD (IWC)              LIMITED. (LCS)
----------------------------------------------------------------------------------------------------------------
 A.     EQUIPMENT DELIVERY, IF CIF ARRANGEMENT IS ORDERED BY LANKA CELLULAR SERVICES (PRIVATE) LIMITED.
----------------------------------------------------------------------------------------------------------------
  1.   Preparation of Equipment    -      IWC is responsible for        -      LCS should provide details
       Import & Export                    supplying all product                for application of Export
                                          information, type approval           License of equipment from
                                          certificates for application         Department of Commerce,
                                          of Import License by Lanka           USA.
                                          Cellular Services (Private)
                                          Limited.                      -      LCS should be responsible
                                                                               for application of Import
                                   -      IWC is responsible for               License and all other
                                          filing the application of            relevant license for
                                          Export License to Department         equipment import, system
                                          of Commence, USA.                    installation and site
                                                                               construction.
----------------------------------------------------------------------------------------------------------------
  2.   Equipment delivery from IWC -      IWC will be responsible for   -      LCS is responsible for
       (USA) to LCS's warehouse in        delivering all equipment             checking the quantity of
       Colombo of Sri Lanka               ordered to the LCS's                 equipment against the
                                          warehouse in Colombo of Sri          package list.
                                          Lanka.
                                                                        -      LCS should sign and return
                                   -      IWC will provide packing             the delivery note to IWC if
                                          list and delivery note for           the quantity of equipment
                                          every shipment of equipment          is correct as well as
                                          to LCS.                              report the discrepancy
                                                                               immediately, if any.
----------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

<S><C>
----------------------------------------------------------------------------------------------------------------
 B.     ON-SITE SYSTEM INSTALLATION, COMMISSIONING AND INTEGRATION SERVICES, IF LCS ORDERS
----------------------------------------------------------------------------------------------------------------
  1.   Appointment of Project      -      IWC will delegate the         -      LCS should appoint the
       Manager                            project manager for the              site or project manager
                                          whole wireless access                for coordinating all
                                          project.                             necessary arrangement for
                                                                               executing all
                                   -      IWC will assign the                  installation,
                                          engineers for supervising            commissioning and
                                          and being the consultant for         integration activities.
                                          installation and network
                                          design of wireless access     -      LCS to confirm with IWC
                                          system, if LCS orders.               about the contact points
                                                                               for this project.
----------------------------------------------------------------------------------------------------------------
  2.   Site identification.        -      IWC should confirm and        -      LCS will determine the
                                          specify the documentation            site location and inform
                                          and information required for         IWC.
                                          completing the system design
                                          for each site, should LCS     -      LCS should provide one set
                                          orders support services from         of floor plan and site
                                          IWC.                                 drawings of each site to
                                                                               IWC.
----------------------------------------------------------------------------------------------------------------
  3.   Site survey.                -      IWC should specify the        -      LCS is responsible for
                                          environmental conditions             site acquisition, site
                                          required for proper                  preparation and all site
                                          installation of equipment            facilities provisioning.
                                          supplied.                            The facilities include
                                                                               utilities, grounding,
                                                                               weatherproofing,
                                                                               lightning,
                                                                               air-conditioning and site
                                                                               access.
----------------------------------------------------------------------------------------------------------------
  4.   RF requirements and system  -      IWC should confirm and        -      LCS should confirm the RF
       design criteria                    specify the requirements for         cabling design and other
                                          completing the system                limitations to IWC.
                                          design, should LCS orders
                                          support services from IWC.    -      LCS is responsible for all
                                                                               RF design, installation of
                                   -      IWC should specify the RF            cable and accessories
                                          cabling/connection                   required for normal
                                          requirements for proper              network operation.
                                          installation of IWC
                                          equipment.
----------------------------------------------------------------------------------------------------------------

<PAGE>

<S><C>
----------------------------------------------------------------------------------------------------------------
 5.    Site construction and RF    -      IWC will recommend the site   -      LCS is required to supply
       distribution construction          requirements and RF                  and install antenna,
                                          conditions as deemed                 feeder, jumper, hanger,
                                          necessary for normal                 grounding devices and
                                          operation of IWC Products            power splitter as well as
                                                                               other filtering devices,
                                                                               as deemed necessary for
                                                                               maintaining proper RF
                                                                               conditions for normal
                                                                               operation of IWC products.
----------------------------------------------------------------------------------------------------------------
  6.   Delivery of IWC Products                                         -      LCS to be responsible for.
       from LCS's warehouse to
       site
----------------------------------------------------------------------------------------------------------------
  7.   On-site hardware and        -      IWC will supervise hardware   -      LCS should prepare to make
       software installation,             installation of BTS, BSC,            the location available for
       commissioning and                  WXC, OMC for Cluster 1-3             installation.
       integration of IWC Products
                                   -      IWC be responsible for        -      LCS to responsible for all
                                          system software                      hardware installation
                                          commissioning and                    physical work for BTS,
                                          integration for BTS, BSC,            BSC, WXC, OMC for Cluster
                                          WXC, OMC for Cluster 1-3             1-3

                                                                        -      LCS to responsible for all
                                                                               hardware installation for
                                                                               BTS, BSC, WXC, OMC for
                                                                               Cluster 4-7

                                                                        -      LCS to responsible for all
                                                                               software commissioning,
                                                                               integration physical work
                                                                               for BTS, BSC, WXC, OMC for
                                                                               Cluster 4-7

                                                                        -      LCS should sign off the
                                                                               commissioning and
                                                                               integration test report
                                                                               and once the tests are
                                                                               passed according to
                                                                               commissioning (off-line)
                                                                               and integration (on-line
                                                                               commissioning) test
                                                                               procedure; and after which
                                                                               the system should be put
                                                                               into provisioning test
                                                                               phase

<PAGE>

<S><C>
----------------------------------------------------------------------------------------------------------------
  8.   Cell data, neighbor cell    -      IWC will perform database     -      LCS should prepare all the
       data and handover parameter        input for BTS, BSC, WXC, OMC         required data and
       for the new cell.                  for Cluster 1-3                      parameters in the WXC,
                                                                               BSC,BTS, OMC as specified
                                   -      IWC will provide on-site             by IWC for Cluster 1-3
                                          supervision, assistance and
                                          consultation for Cluster 4-7  -      LCS will perform database
                                          data fill process if LCS so          input for BTS, BSC, WXC,
                                          request.                             OMC for Cluster 4-7

                                   (TO BE QUOTED SEPARATELY)
----------------------------------------------------------------------------------------------------------------
  9.   E1 link application and     -      IWC to provide LCS the basic  -      As specified by IWC, LCS
       acceptance.                        acceptance criteria of E1            should supply, install,
                                          link, if requested.                  commission, maintain, and
                                                                               repair all transmission
                                                                               facilities, as deemed
                                                                               necessary for normal
                                                                               network operation.
----------------------------------------------------------------------------------------------------------------
  10.  Connection of on-site E1    -      IWC will supervise the
       port installed by LCS to           installation work for E1      -    LCS will connect and install
       the IWC Product                    connection at the switch           E1 link up the MDF point.
                                          centre and the E1 connection
                                          at each BTS site of the       -    LCS to supply jumper,
                                          first cluster if LCS so            connector cabling and other
                                          requires.                          accessories for connecting
                                   -      IWC will provide the correct       E1 links from the MDF to the
                                          E1 connection method to IWC        connectors of IWC Products
                                          Product.                           at each site and location.
----------------------------------------------------------------------------------------------------------------
  11.  Connection of RF feeder     -    IWC will provide advise on the  -    LCS will supply all required
       connector to the                 correct RF connection method         coaxial cable, connectors
       WAVEXpress/BTS                   to IWC products                      and accessories for each and
----------------------------------------------------------------------------------------------------------------

<PAGE>

<S><C>
----------------------------------------------------------------------------------------------------------------
                                                                             prepare proper super-flex
                                   -    IWC will advise on the VSWR          cable and connectors.
                                        and other RF requirements for
                                        IWC Products.                   -    LCS is responsible for
                                                                             connecting IWC Products with
                                                                             RF distribution required.

                                                                        -    LCS is responsible for
                                                                             maintaining the VSWR quality
                                                                             for all RF connection as
                                                                             specified by IWC
----------------------------------------------------------------------------------------------------------------
  12.  Pre-paid system             -    IWC will perform the            -    LCS will determine the
       installation commissioning       installation work of Prepaid         subscriber, tariff related
       and integration.                 System                               and routing information on
                                                                             the list that IWC provided
                                   (TO BE QUOTED SEPARATELY)            -    LCS should sign off the
                                                                             commissioning and
                                   -  IWC will  perform the software         integration test report and
                                      commissioning and integration of       after which the system could
                                      Prepaid System                         be puts into provisioning
                                                                             test phase
                                   (TO BE QUOTED SEPARATELY)
----------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

<S><C>
--------------------------------------------------------------------------------------------------------------------------------
 C.     MAINTENANCE AND OPERATION SUPPORT, IF LCS ORDERS.
--------------------------------------------------------------------------------------------------------------------------------
  1.   On-site technical           -      IWC on-site engineer is       -      LCS is responsible for
       consultant                         responsible for providing            providing enough manpower
       (if purchased)                     advice on daily operation,           as specified by IWC to
                                          maintenance and fault                perform proper trouble-
                                          restoration for the IWC              shooting activities for
                                          network equipment.                   S1, S2 and S3 cases.

                                   -      IWC on-site engineer is       -      LCS is responsible for
                                          responsible for coordinating         providing necessary
                                          with Regional TAC and                trouble-shooting
                                          advising the trouble-                resources: such as test
                                          shooting activities of S1,           equipment, telephone line,
                                          S2, and S3 problems in the           IDD facilities, modem and
                                          period of 24 hours a day and         transportation to assist
                                          7 days a week.                       the IWC on-site engineers
                                                                               to perform the necessary
                                   -      IWC on-site engineer is also         trouble-shooting and fault
                                          responsible for conducting           restoration activities
                                          regular technical review
                                          with LCS                      -      LCS is responsible for
                                                                               coordinating and
                                   -      IWC to recommend the                 performing all necessary
                                          procedures and scope of the          system changes, such as
                                          regular preventive network           transmission, E1 equipment
                                          maintenance, if required by          facilities, power
                                          LCS.                                 facilities, parameter
                                                                               changing and others as
                                   -      IWC on-site engineering              specified by IWC engineers
                                          consultant will supervise            in order to assist the
                                          the hardware installation            trouble-shooting
                                          work for cluster WXC, OMC,           activities
                                          BSC, BTS installation work
                                                                        -      LCS could specify any
                                                                               particular requirements
                                                                               for the monthly preventive
                                                                               maintenance, if necessary,
                                                                               and should assist IWC to
                                                                               coordinate and conduct the
                                                                               preventive maintenance
                                                                               required.
--------------------------------------------------------------------------------------------------------------------------------

<PAGE>

<S><C>
--------------------------------------------------------------------------------------------------------------------------------
  2.   Daily OMC-R operation       -      IWC on-site engineer is       -      LCS is required to monitor
                                          responsible for providing            the system and alarm status
       (if on-site technical              advice on daily operation            through the OMC system.
       consultant option is               and maintenance, if                  LCS should inform IWC on-
       purchased)                         necessary.                           site engineer if there is
                                                                               any fault alarm or event.

                                                                        -      If there are other
                                                                               activities, such as power
                                                                               outage, relocation of
                                                                               transmission line, upgrade,
                                                                               patching,  etc., affecting
                                                                               the overall network
                                                                               performance, LCS is
                                                                               required to notify IWC as
                                                                               to allow IWC to advise the
                                                                               precaution required.
--------------------------------------------------------------------------------------------------------------------------------
  3.   Off-site 24 hours           -      IWC will provide technical    -      LCS is responsible for coordinating
       emergency Level 2 support          telephone consultancy in             and performing suitable fault diagnostics,
                                          relation to system recovery,         fault isolation or system recovery action on IWC
       (Please refer to Section 7         alarms, events and system            equipement after the initial discovery of
       of this Agreement)                 performance. However, IWC            problematic situation.
                                          will, in normal practice,
                                          not provide consultancy
                                          relating to normal day to
                                          day system operation, which
                                          is well covered by the user
                                          manual.                       -      LCS is responsible for reporting all faults
                                                                               to interWAVE Regional TAC (Technical Assistance
                                   -      IWC will provide all year            Centre) via emial ina way specified by Regional
                                          round emergency telephone            TAC.
                                          support for system
                                          restoration for those S1 and
                                          S2 cases.
                                                                        -      LCS is responsible for coordinatin,
                                   -      IWC will provide response            performing suitable action on non-IWC
                                          for S3 issues                        equipement as advised by IWC for the
                                          electronically.                      purpose of fault recovery and bug isolation.

                                   -      IWC will follow up and trace
                                          the root cause of S1, S2 and  -      LCS is responsible for providing the necessary
                                          S3 events for identifying            manpower to perform fault
                                          long term solution.  This            recovery, fault isolation and solution
                                          includes patches, point
                                          release, full
--------------------------------------------------------------------------------------------------------------------------------

<PAGE>

<S><C>
--------------------------------------------------------------------------------------------------------------------------------
                                          software release or new              application activities as advises by IWC
                                          feature request.

                                   -      IWC will supply the           -      LCS is responsible for providing as much
                                          solution, in forms of                information as possible to IWC in order
                                          patches or software, to the          to establish the TR report system in order
                                          problems so that IWC could           to log down all these S1,S2 and S3 cases.
                                          remotely apply to the system
                                          or applying the solution
                                          locally with the assistance
                                          from LCS engineer

                                   -      IWC will perform regular
                                          system problem review with
                                          customer based on TR reports

--------------------------------------------------------------------------------------------------------------------------------
  4.   Monthly system performance  -      IWC is required to attend     -      LCS should be responsible for compiling,
       report and project meeting         the monthly meeting to               updating and submitting regular report to
                                          discuss the system                   IWC on project progress, all system
                                          performance, system recovery         parameters, cell data and system
                                          and project progress.                performance statistics, quality issues,
                                                                               stock level of spare parts so that IWC
                                   -      IWC is required to provide           could help to provide recommendation.
                                          feedback and solution to the
                                          action points required from
                                          the monthly system report.
                                                                        -      LCS is responsible for coordinating the
                                                                               monthly meeting.

                                                                        -      LCS is required to refill the spares stock
                                                                               if LCS deem necessary.
--------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

2.2    SCOPE OF INSTALLATION, COMMISSIONING AND INTEGRATION WORK

<TABLE>
<CAPTION>

<S><C>
--------------------------------------------------------------------------------------------------------------------------------
 SYSTEM SOFTWARE INSTALLATION AND COMMISSIONING ENGINEERING SERVICES IN SRI LANKA, INCLUDING THE
 FOLLOWING SCOPE OF SERVICES:
--------------------------------------------------------------------------------------------------------------------------------
  1.   Software installation and commissioning for WAVEXpress/BTS, TurboWAVE/BTS, WAVEXpress/BSC,
       WAVEXpress/WXC, and WAVEView OMC-R/S (IF PURCHASED PER SECTION 3.2 OF THIS AGREEMENT)
--------------------------------------------------------------------------------------------------------------------------------
       a.     Advise on the required system software, configuration data and parameter set-up as
              necessary for software installation and commissioning as well as system integration

       b.     Perform on software commissioning and integration configuration work of OMC Server,
              Workstations, WXC, BSC, and BTS system for first 3 cluster. (AS QUOTE PER SECTION 3.2 OF
              THIS AGREEMENT)

       c.     Responsible for software and system integration for OMC, WXC, BSC, BTS systems of first 3
              cluster (AS QUOTE PER SECTION 3.2 OF THIS AGREEMENT)

       d.     Supply generic test commissioning (off-line) and integration (on-line) procedures and
              sign-off document for IWC systems,

       e.     Provide advise on the installation, commissioning and integration report format
--------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

<S><C>
--------------------------------------------------------------------------------------------------------------------------------
 SYSTEM HARDWARE INSTALLATION ENGINEERING SERVICES IN SRI LANKA, INCLUDING THE FOLLOWING SCOPE OF
 SERVICES:
--------------------------------------------------------------------------------------------------------------------------------
  2.   Supervision on System Hardware Installation Services for WAVEXpress/BTS, TurboWAVE/BTS,
       WAVEXpress/BSC, WAVEXpress/WXC, and WAVEView OMC-R/S, including the following scope of services:
       (AS QUOTE PER SECTION 3.2 ON-SITE ENGINEERING CONSULTANT SUPPORT OF THIS AGREEMENT)
--------------------------------------------------------------------------------------------------------------------------------
       a.     Advise on the environmental and electrical condition for installation of WAVEXpress/BSC,
              WAVEXpress/WXC, Turbo/BTS; WAVEView OMC and Pre-paid systems

       b.     Supply the procedures and test criteria for transmission line connection with
              WAVEXpress/BSC, WAVEXpress/WXC, WAVEXpress/BTS, WAVEView OMC

       c.     Supervise hardware installation for WAVEXpress/BSC, WAVEXpress/WXC, Turbo/BTS; WAVEView OMC
              of the cluster 1-3 (AS QUOTE PER SECTION 3.2 ON-SITE ENGINEERING CONSULTANT SUPPORT FOR THE
              CLUSTER 1-3 PERIOD OF THIS AGREEMENT)

       d.     Supply documentation and procedures on system hardware installation and provide advise on
              the installation report format
--------------------------------------------------------------------------------------------------------------------------------
</TABLE>

Remarks:        1. Installation services exclude installation for following
                networks, such as LAN or WAN computer network, dial-up line,
                console or similar furniture.

       2.     Additional charge is involved for requiring IWC engineers to
              assist in installing and integrating IWC equipment for clusters
              4-7

<PAGE>

                                   SCHEDULE 3

                         INITIAL ACCEPTANCE CERTIFICATE

<PAGE>

                                   SCHEDULE 3

INTERWAVE

                         INITIAL ACCEPTANCE CERTIFICATE

    THIS IS TO CERTIFY THE INTERWAVE WAVEXPRESS WXC, BSC, BTS AND OMC SYSTEM
                                  DELIVERED BY:

                   INTERWAVE COMMUNICATIONS INTERNATIONAL LTD.

                                       TO

                      LANKA CELLULAR SERVICES (Pvt) LIMITED

                  IS ACCEPTED BY THE PURCHASER AND THE END USER

                                     DUE TO

                 ACCEPTANCE TESTS CASES CARRIED OUT SUCCESSFULLY
 ACCORDING TO THE "INITIAL ACCEPTANCE TEST PLAN" STATED IN THE ANNEX OF SCHEDULE
 3 AND IS NOW OPERATIONAL IN ACCORDANCE WITH THIS PLAN TO THE SATISFACTION OF
                          ALL PARTIES CONCERNED NAMELY
                    LANKA CELLULAR SERVICES (Pvt) LIMITED AND
                   INTERWAVE COMMUNICATIONS INTERNATIONAL LTD.

DATE:
      ----------------------

FOR AND ON BEHALF OF :                    FOR AND ON BEHALF OF:
INTERWAVE COMMUNICATIONS                  LANKA CELLULAR
INTERNATIONAL LTD.                        SERVICES (Pvt) LTD

---------------------------               --------------------------------
NAME :                                    NAME:
TITLE:                                    TITLE:

<PAGE>

                                   SCHEDULE 4

                             CUSTOMER ADVOCACY PLAN

<PAGE>

                                   SCHEDULE 4

                  CUSTOMER ADVOCACY PLAN (LEVEL 2 SUPPORT PLAN)

1.0    PURPOSE

       The purpose of this procedure is to describe the method and timeframe for
       escalating problems based upon the severity level and potential impact to
       the customer network, as reported by Lanka Cellular Services (Private)
       Limited (thereafter called "LCS")

2.0    SCOPE

       The procedure covers the process, which connects the Regional Level 2
       support offices in HK (thereafter called "Regional TAC") to the
       headquarters' operation and escalation to the HQ operation in Redwood
       City (thereafter called "Corporate TAC").

3.0    RESPONSIBILITY

       It is the responsibility of the Regional TAC manager to manage the
       overall call escalation process and ensure that the procedures for
       escalation are adhered to by the company.  It is the responsibility of
       the Regional TAC managers to insure that the cases are properly
       classified upon initial diagnosis by the case manager and then
       notification is sent to the Corporate TAC.

4.0    LEVEL 2 SUPPORT

       4.1    During the Support Period, the Regional TAC will provide a 24
              hours, 7 days hotline service to LCS to handle the requests for
              2nd Level Support

       4.2    On receiving of a TR report (the trouble report) from LCS,
              Regional TAC will start analyzing the TR and the associate
              severity/case/problem; and if deemed appropriate, a corresponding
              Scopus case will be opened and a Scopus case number will be
              allocated. The LCS can then use the TR number in all
              communications regarding the fault report.  LCS needs to supply
              their LCS TR number to Regional TAC for reference. This TR that
              LCS raised per each request to Regional TAC will be sent by soft
              copy to HK via emailing to support@iwv.com.hk. Regional TAC will
              then answer those TR from LCS.

       4.3    The investigation will be conducted by the Regional TAC on
              receiving an emergency telephone call or TR reported by the LCS.
              The severity of the case will also be determined. Further, if such
              an investigation reveals an error, defect or malfunction in the
              software, the Regional TAC will ensure the problematic system
              return to service by using of a temporary solution, acceptable to
              the LCS (that is, a "workaround").

       4.4    If Regional TAC could not provide a "workaround" to the problem
              within the specific hours defined in Section 4.12, then the
              problem will be escalated to

<PAGE>

              Corporate TAC Support for further analysis. Please see section
              4.12 for more information.

       4.5    Local user or customer will ONLY called the emergency support
              telephone no. (that LCS has provided to subscriber), but NOT
              Regional TAC emergency telephone. This customer emergency support
              telephone number will be automatically routed back to LCS. LCS
              engineer will determine emergency and that on emergency they will
              call Regional TAC with a designated Regional TAC telephone number:
              93793981  (24 hours, 7 days per week) This will be mainly related
              to S1 and S2 issues. For S3 issues, LCS will send email to
              Regional TAC at designated email address.

       4.6    Regional TAC will call back to designated caller. The caller will
              be a LCS engineer and he will be responsible for including the
              appropriate LCS personnel into the conference call with Regional
              TAC. In most case it is assumed LCS engineer will be involved in
              the conference call. Regional TAC could also call LCS number
              (?????????) in cases Regional TAC would like emergency contact to
              LCS (for example, may be the caller is busy on telephone)

       4.7    If the working period has been passed and that the issue has not
              been solved or no "workaround" is available; this issue will be
              escalated to the next level of support in RWC: i.e. the Level 3;
              following the escalation procedure in Section 4.12. In case there
              is an urgent requirement to contact L3, Regional TAC may contact
              L3 support earlier for even faster resolution.

       4.8    If during the working period, there is a need for Regional TAC to
              remote accessing the OMC/BSC/BTS/WXC/Combo, or performing some
              destructive maintenance action; then this request for access or
              action will be made to the customer; via the responsible
              caller/LCS engineer.

       4.9    LCS and the Regional TAC will keep each other informed of the
              progress in resolving any fault, via regular communications.

       4.10   Visit to the LCS/Customer's sites by Regional TAC engineer for the
              purpose of investigation or fault resolution will need to be
              agreed separately between LCS and interWAVE.

       4.11   LCS/Regional TAC should agree on the severity level of the call
              using the following guideline.

       S1     EMERGENCY            System or network is down and unusable as a
                                   result of a problem which causes failures, or
                                   results in severe intermittent operations
                                   with no customer acceptable work-arounds, or
                                   the customer states the problem has a
                                   critical impact on their operation.

       S2     SIGNIFICANT          System or network is up and will run,
                                   however, the problem exists with impact
                                   significant impact and which has difficult or
                                   no work-arounds causing substantial
                                   performance degradation, or prevents the
                                   customer from using a critical feature of the
                                   product or the system.

<PAGE>

       S3     LIMITED IMPACT       System or network is up and running but minor
                                   problems exist having limited impact.
                                   Customer can use the system or product with
                                   limitation or workarounds that are not
                                   critically impacting the overall operations.
                                   This could be a non-problematic information
                                   issue.

       S4     RMA                  Logging a request for a return Material
                                   authorization.

       S5     ENHANCEMENT          Required for a new product or feature.  This
                                   is used by both The Customer Advocacy
                                   function and Marketing to prioritize future
                                   releases(includes documentation).

       S6     INFORMATIONAL        Will be used for fulfilling Customer Requests
                                   for information in the future.

       4.12   Escalation Table

       If Regional TAC could not provide a "workaround" to the problem within
       the specific hours defined in the following table depend on severity, the
       problem will escalate to Corporate TAC Support for further analysis.

<TABLE>
<CAPTION>

         ------------------------------------------------------------------------------------------
            SEVERITY    INITIAL RESPONSE    LEVEL 2 REGIONAL     CORPORATE TAC       ENGINEERING
                         (VIA TELEPHONE)    TAC ESCALATE TO
                                             CORPORATE TAC
         ------------------------------------------------------------------------------------------
<S>                    <C>                 <C>                <C>                  <C>
               S1      15 Minutes          T0 + 4 hours       T0 + 12 hours        T0 + 24 hours
         ------------------------------------------------------------------------------------------
               S2      15 Minutes          T0 + 24 hours      T0 + 36 hours        T0 + 48 hours
         ------------------------------------------------------------------------------------------
               S3      Next Working Day    T0 + 72 hours      T0 + 120 hours       T0 + 168 hours
         ------------------------------------------------------------------------------------------
         T0 = time of receipt of initial call
</TABLE>

       The initial response is defined as the time it takes from the time the on
       call engineer is contacted via phone until the time the call is returned.

5.0    COMMUNICATION

<PAGE>

       The Regional TAC will only receive the support call from LCS.  The
       Regional TAC may be contacted by

<TABLE>
<CAPTION>

         ---------------------------------------------------------------------
<S>                                         <C>
          Regional TAC 2nd Line  Support    +852 9379-3981
          Telephone:
         ---------------------------------------------------------------------
          Regional TAC Support Manager      +852 9379-3983
          Telephone:
         ---------------------------------------------------------------------
          Fax: (S3 Case)                    +852 2519-9033
         ---------------------------------------------------------------------
                                            Attn.:  Amos Mak / Aaron Lee
         ---------------------------------------------------------------------
          Email Address: (S3 Case)          Support@iwv.com.hk
         ---------------------------------------------------------------------
</TABLE>

          Lanka Cellular Services (Private) Limited may be contacted by

<TABLE>
<CAPTION>

         ---------------------------------------------------------------------
<S>                                         <C>
           LCS Emergency Support             +94 7 863-2077 or +94 7 866-0021
                                             Attn.:  Rasika Perera
         ---------------------------------------------------------------------
           LCS Reply Email Address:          Rasika@hutchison.lk
         ---------------------------------------------------------------------
</TABLE>

6.0    PATCH DELIVERY

       All patches will be created from interWAVE Redwood City. Regional TAC can
       then access the patches from an internal interWAVE database. This applies
       to both emergency and non-emergency cases. The patch will be further
       prepared and validated in interWAVE HK  for the specific site environment
       or issues.

       Regional TAC will then send the final resolution patch  to LCS, at the
       designated email address; after the patch has been made ready/validated
       in Regional TAC in Hong Kong.

       The patch will only be regarded as "ready to be used by LCS" when LCS has
       received a final green signal from Regional TAC, via phone call or email.

       LCS will be responsible for establishing the most suitable choice of
       transmission medium with the local customer for the transmission of
       patch.

       Depending on the outcome of discussion, the patch will then be ultimately
       delivered to appropriate location; via the designated caller/LCS
       engineer. Regional TAC will also assist LCS to achieve this.

7.0    ACCESS TO OMCR

<PAGE>

       The Regional TAC will need to have dial-up access to the customer's OMCR
       to permit remote fault analysis.

       LCS will take step to negotiate with local customer, via LCS project
       control for the modem telephone number and modem facilities set up. LCS
       would also need to supply Regional TAC the password and  user name on the
       designated interWAVE  OMCR  machine for the purpose of remote system
       diagnosis.

<PAGE>

                               ANNEX TO SCHEDULE 4
                               -------------------
                    SYSTEM MAINTENANCE AND SUPPORT AGREEMENT
                    ----------------------------------------
                                DATED: [       ]
                                ----------------

BETWEEN:

(1)    LANKA CELLULAR SERVICES (PVT) LIMITED of 4th Floor, 1119 Maradana Road,
       Colombo 8, Sri Lanka ("The Purchaser"); and

(2)    interWAVE COMMUNICATIONS INTERNATIONAL LTD. of  Codan Services, Claredon
       House, Church Street, Hamilton HM DX, Bermuda ("the Contractor").

WHEREAS:

A.     By an agreement between The Purchaser and the Contractor of even date
       herewith, the Contractor agreed to supply the Work ("the Contract").

B.     The Contractor has agreed to support and maintain the First Delivery and
       the Initial System, if the Purchaser so deploy and, subject to the
       exercise of the Option, the Expansion System, on the terms set out
       herein.

1.     TERMS

       Terms defined in the Contract shall, except as expressly provided
       to the contrary herein, bear the same meanings herein as they bear
       under this maintenance agreement.

2.     SCOPE

       The Contractor agrees to provide support and maintenance of the First
       Delivery, the Initial System and, if the Purchaser so deploy, the
       Expansion System in Sri Lanka, on the terms and conditions herein
       contained.

3.     TERM AND RENEWAL

3.1    Subject to earlier termination under Clause 7, the support and
       maintenance services to be provided hereunder with respect to the First
       Delivery and the Initial System, the Expansion System, if The Purchaser
       so deploy shall commence from the first site of acceptance, and in
       respect of the Expansion System (upon exercise of the Option) shall begin
       on The Purchaser in-service date and shall terminate in each case one
       year

<PAGE>

       thereafter with respect to each unless renewed in accordance with Clause
       3.2 ("Initial Term").

3.2    The Purchaser may, at its option, extend this Agreement for further
       successive periods of one (1) year each, by giving notice in writing to
       The Contractor not less than 45 days prior to the expiration of the
       Initial Term, or any such subsequent period.

4.     FEES AND PAYMENTS

4.1    Subject to Clause 4.2, maintenance and support during the Initial Term
       shall be provided in part consideration of the payments to be made by The
       Purchaser to The Contractor under The Contract and no additional charges
       shall be payable hereunder.

4.2    The fees payable to The Contractor in the first year immediately
       following the expiry of the Initial Term for services described herein
       shall, in respect of the First Delivery, the Initial System and the
       Expansion System, if The Purchaser so deploy (in the latter case, upon
       exercise of the Option), be fixed at the price specified in Attachment
       II, thereafter, by agreement between The Purchaser and The Contractor.

4.3    FEES AND PAYMENTS

       Fees and Payment shall be payable as follows:

       (a)    Maintenance and support during the Initial Term referred to above
              shall be provided in accordance with Attachment I.

       (b)    Fees after the Initial Term, shall be invoice in equal quarterly
              installments paid at the end of the quarter and shall be pro-rated
              with respect to any quarter in which services were provided during
              only a portion of such quarter.

       (c)    Payments shall be made by The Purchaser in U.S. dollars within
              fourteen (14) days from date of invoice.

4.4    THE PURCHASER'S RESPONSIBILITIES

       The Purchaser shall:

       Provide experienced technical personnel capable of assuming the following
       operations responsibilities:

       (a)    Monitoring the BSS operation on a 24-hour basis and calling The
              Contractor hot-line when improper functions are observed.

       (b)    Investigating and verifying subscriber complaints.

       (c)    Responding to service requests from subscribers, verifying
              subscriber database information.

<PAGE>

       (d)    Performing all administrative tasks associated with BSS equipment
              logs.

       (e)    The Purchaser personnel will perform subscriber data file backup.

       (f)    Produce performance report to be agreed between The Purchaser/The
              Contractor.

4.5    CONTRACTOR SERVICE LIMITATIONS

       (a)    Service does not include installation of BSS system expansions.

       (b)    Service will not include: normal system operator and operating
              responsibilities; the provision of operating supplies; electrical
              work external to the BSS; or any other functions not specifically
              defined as BSS remedial or preventive maintenance.

5.     ON-SITE MAINTENANCE

5.1    CONTRACTOR RESPONSIBILITIES

       The Contractor agrees to perform the following services on Site or
       at such other place as from time to time advised by The Purchaser
       and shall comply with the following obligations during the term of
       this Agreement:

       (a)    The Contractor shall provide to The Purchaser remedial
              maintenance including the diagnosis and correction of
              System errors, malfunctions and failures, as follows:

              (i)    The Contractor shall provide on-call emergency
                     remedial repair service ("RR") 24 hours a day, 7
                     days a week, 365/366 days a year for the System.
                     The Contractor's response to any major problem
                     affecting service (as determined in The Purchaser's
                     reasonable opinion) shall be within one (1) hour
                     following a telephone call from The Purchaser to the
                     Contractor's service representative (The Purchaser
                     acknowledges that prior to the making of such a
                     telephone call to The Contractor, it shall first
                     attempt to remedy the problem being complained of).
                     If the Contractor's service representative
                     determines that the service affecting problem cannot
                     be fixed remotely or through The Purchaser staff on
                     site, then The Contractor must provide on site
                     remedial repair service within 1-1/2 hours of that
                     determination which shall be made by The Contractor
                     as quickly as reasonably possible;

              (ii)   The Contractor shall provide on-site RR for
                     service-affecting problems unless The Purchaser requests
                     otherwise.

<PAGE>

       (b)    The Contractor shall provide at its own expense all labour and
              parts which are necessary for providing the services required
              hereunder. Only new, or like new parts which are equivalent to new
              in performance will be used in providing such services. Defective
              items shall be repaired or replaced with non-defective items
              within ten (10) business days of receipt of defective Equipment or
              Software by The Contractor, except where the defect causes system
              down time or impacts on System performance in which case the
              repair or replacement must be provided forthwith within four (4)
              hours after request.

       (c)    The Contractor shall provide scheduled preventive maintenance
              ("PM") based on the specific needs of the Equipment as reasonably
              determined by The Contractor.

       (d)    The Contractor shall arrange for service materials, tools,
              documentation, diagnostics and test equipment necessary for
              Preventative Maintenance ("PM") and RR.  The Contractor shall
              retain title to all such items utilized by The Contractor to
              perform its obligations hereunder.  The Contractor shall ensure
              all the works done are carried out by duly qualified Maintenance
              Personnel.  The Contractor shall provide and update a complete
              list of all such duly qualified Maintenance Personnel who are
              likely to provide any services to The Purchaser under this
              Agreement.

       (e)    The Contractor shall review alarm log and system status
              messages and initiate corrective action when required by
              The Purchaser.

       (f)    The Contractor shall keep recent accurate "as installed"
              documentation for all system hardware and make such
              documentation available to The Purchaser on request.

       (g)    The Contractor shall review Quarterly preventive maintenance
              schedule with The Purchaser and co-ordinate activities with The
              Purchaser's Customer Service Group in order to minimize service
              impacts.

       (h)    The Contractor shall compile a maintenance and preventive
              maintenance procedures manual for all equipment, in a form
              reasonably acceptable to The Purchaser.

       (i)    The Contractor shall assist The Purchaser's Customer
              Service Group in evaluating the maintenance and preventive
              maintenance activities in terms of impact and potential
              benefit to subscriber service.

       (j)    The Contractor shall provide on-going advice on and adherence to
              fault escalation, co-ordination and security procedures in order
              to minimize service impact and maximize maintenance efficiency.

       (k)    The Contractor shall consult with The Purchaser annually regarding
              The Contractor's scope of responsibilities under this Agreement
              and the demarcation of responsibility between The Contractor and
              The

<PAGE>

              Purchaser's support teams with the objective of improving overall
              subscriber service and maintenance and operations efficiency.
       (l)    The Contractor shall participate as reasonably required by
              The Purchaser in the preparation of The Purchaser's
              disaster prevention, contingency and recovery plans and
              procedures in area which are related to maintenance.

       (m)    The Contractor shall arrange insurance coverage for The
              Contractor's staff and contractors, including labour
              compensation coverage for The Contractor's personnel when
              they are attending The Purchaser's premises.

       (n)    The Contractor shall keep the Site environment tidy and
              clean at all times.  The Contractor shall clear out any
              debris or unused material off the Site after completion of
              any works.

       (o)    The Contractor shall, when entering the Site environment, not
              cause any nuisance to the community of the nearby areas.

       (p)    The Contractor shall prepare and give to The Purchaser a
              list of all maintenance personnel who may perform work
              under this Agreement, who shall be subject to the approval
              of The Purchaser (not to be unreasonably withheld) for the
              purpose of granting such personnel access to the Site to
              perform Work.

       (q)    Where any maintenance or other service is undertaken by remote
              access by The Contractor, The Contractor shall follow such
              procedures as The Purchaser shall in its absolute discretion
              consider appropriate including without prejudice to the generality
              of the foregoing, the registration with The Purchaser of all
              persons requiring access together with their identification
              numbers for log in purpose.  The Purchaser shall advise The
              Contractor of the password to be used for such purposes and access
              shall be by confidential password.  The Contractor shall be wholly
              responsible for and bear the risk of all access using such
              procedure and The Purchaser shall be under no obligation to make
              further inquiry as to the authority of the person accessing the
              system.  The Contractor shall be responsible for maintaining the
              security of the System and ensure that access is protected by such
              secured ID system permitting access only to  the Contractor's
              authorized personnel.  The Contractor is responsible for all
              aspects of such remote accessing procedure and hereby indemnifies
              The Purchaser against any costs, claims, damages, loss or expenses
              that it may suffer or incur as a result thereof.

       (r)    The Contractor shall indemnify The Purchaser from and
              against any and all damage or loss occurring to the Site,
              the System, or The Purchaser's facilities whether directly
              or indirectly, arising as a result of work performed under
              this Agreement.

       (s)    The Contractor shall provide adequate technical training
              and technology transfer of the System to The Purchaser.

<PAGE>

5.2    WARRANTIES

       Without limiting the provision of the Contract or the above
       provisions, The Contractor shall replace, make good or rectify any
       Equipment or Software which does not comply with the Warranties
       set out in Clause 7 of the Contract.

6.     WARRANTIES AND CONDITION OF SERVICE

6.1    Without limiting the warranties and undertakings provided in The
       Contract, The Contractor warrants that all Work performed hereunder will
       be performed in a professional and workmanlike manner.

6.2    The Contractor's obligation to provide service hereunder shall not extend
       to faults caused by:

       (a)    accident caused by The Purchaser or the negligence of The
              Purchaser;

       (b)    failure of The Purchaser to use the System in accordance
              with reasonable requirements of The Contractor as set out
              in the Documentation;

       (c)    failure or defect of The Purchaser's electrical power,
              external electrical circuitry, air conditioning or humidity
              control resulting in operating conditions not being in
              accordance with the Specifications;

       (d)    any party other than The Contractor or a customer service
              representative authorized by The Contractor modifying,
              adjusting repairing, servicing or installing the System.

       During an Emergency, the repair of Equipment of any specific work must be
       performed by qualified The Purchaser staff who have undertaken the
       training organized by The Contractor.  The Purchaser shall inform The
       Contractor the details of fault and repair in writing, within 24 hours
       after emergency repair and any work so performed by The Purchaser staff
       shall not invalidate any Warranties provided reasonable care is taken
       during such repair.

6.3    The Contractor will be under no obligation to furnish any Software
       Support included in the Schedule(s) under this Agreement if in
       Contractor's option,

       (a)    the Software has been altered or modified by other than The
              Contractor or the Contractor's representatives;

       (b)    the Software has been superseded by a new release and such release
              has been made available to The Purchaser by The Contractor; and

       (c)    Software errors have been caused by The Purchaser's negligence.

<PAGE>

7.     DEFAULT

7.1    In the event that either party defaults in the performance of any of its
       obligations set forth in this Agreement and the default remains uncured
       for a period of thirty (30) days after receipt by such party or written
       notice from the other party, then the injured party, in addition to any
       other rights available to it under law, may terminate this Agreement at
       any time by giving notice in writing to the defaulting party.

7.2    If The Contractor becomes insolvent or enters into any liquidation or
       insolvency proceedings, has a receiver, manager, administrator, trustee
       or similar officer appointed or has a resolution passed or an order made
       against it for winding up or if a winding-up petition is issued or if any
       composition or arrangement with its creditors is made, or if it is unable
       to pay its debts or has any execution or attachment levied in respect of
       any of its assets which is not discharged within 30 working days, The
       Purchaser shall be entitled forthwith to terminate this Agreement without
       notice or compensation to the Contractor.

7.3    The Purchaser may terminate this Agreement forthwith in the event that
       The Contract terminates for any reason.

7.4    Notwithstanding anything herein provided, any termination of this
       Agreement shall not affect any accrued rights or liabilities of any party
       existing or accruing prior to such termination.

8.     COVENANT NOT TO EMPLOY

       The Purchaser and The Contractor agree that during the term of
       this Agreement and for a period of six (6) months thereafter,
       neither The Purchaser nor The Contractor shall directly solicit
       for the purpose of employment in relation to performance of
       maintenance of the System any employee of The Purchaser or The
       Contractor involved in the performance of System maintenance.  If
       at any time this provision is found to be overly broad under the
       laws of an applicable jurisdiction, then this provision shall
       deemed to be deleted from this Agreement and both parties shall
       negotiate in good faith in order to agree the terms of a mutually
       satisfactory provision to be substituted for this provision found
       to be void or unenforceable.

9.     ENTIRE AGREEMENT

9.1    This Agreement and The Contract constitute the entire understanding
       between the parties concerning the subject matter hereof and supersedes
       all prior discussions, agreements and representations, whether oral or
       written and whether or not executed by The Contractor and The Purchaser.
       No modification, amendment or other change may be made to this Agreement
       or any part thereof unless reduced to writing and executed by authorized
       representative of both parties.

<PAGE>

9.2    Subject to Clause 9.3, the terms and conditions of this Agreement shall
       prevail notwithstanding any variance with the terms and conditions of any
       order submitted by The Purchaser following execution hereof.  In no event
       shall the preprinted terms and conditions found on any customer purchaser
       order, acknowledgement or other form be considered an amendment or
       modification of this Agreement even if such documents are signed by
       representatives of both parties; such preprinted terms and conditions
       shall be null and void and of no force and effect.

9.3    In the event of any inconsistency between this Agreement and The
       Contract, The Contract shall prevail to the extent of the inconsistency.

10.    APPLICABLE LAW

10.1   This Agreement shall be interpreted, construed and governed by the laws
       of England and the parties hereto submit to the non-exclusive
       jurisdiction of the English courts.

IN WITNESS WHEREOF, this Agreement has been executed on the day and year first
above written.

Lanka Cellular Services (Private) Limited        interWAVE Communications
                                                 International, Ltd.
-------------------------------------------------------------------------------

By:                                              By:
--------------------------------------------------------------------------

Name:                                            Name:
--------------------------------------------------------------------------

Title:                                           Title:
--------------------------------------------------------------------------

Date:                                            Date:
--------------------------------------------------------------------------

IN THE PRESENCE OF:
-------------------

By:                                              By:
--------------------------------------------------------------------------

Name:                                            Name:
--------------------------------------------------------------------------

Title:                                           Title:
--------------------------------------------------------------------------

Date:                                            Date:
--------------------------------------------------------------------------

<PAGE>

                                   SCHEDULE 5

                  CONFIDENTIALITY AND NON-DISCLOSURE AGREEMENT

<PAGE>

                                   SCHEDULE 5

                  CONFIDENTIALITY AND NON-DISCLOSURE AGREEMENT

       This Agreement is entered into effective as of the ______ day of
December, 1999 between Lanka Cellular Services (Pvt) Limited , a Sri Lanka
corporation with offices at 4th Floor, 1119 Maradana Road, Colombo 8, Sri Lanka
and interWAVE Communications International, Ltd. located in Bermuda.

       WHEREAS, the Parties contemplate entering into a contract for the supply
of certain equipment and software for the installation of a micro-cell base
station system (the "Contract"); and

       WHEREAS, the Parties may need or want to disclose certain Information to
each other on a confidential basis in connection with their discussions
regarding or in anticipation of such business arrangements;

       NOW THEREFORE, in consideration of the disclosure of Proprietary
Information (as defined herein) by either Party, the Parties agree as follows:

       1.            As Used Herein:

              "Information" is defined as communications or data including, but
       not limited to, business information, marketing plans, technical or
       financial information, customer lists or proposals, sketches, models,
       samples, computer programs and documentation, drawings, specifications,
       whether conveyed in oral, written, graphic, or electromagnetic form or
       otherwise.

              "Party" is defined as either entity executing this Agreement and
       any subsidiary, division, affiliate, or parent company of such entity.

              "Proprietary Information" is defined as that Information owned or
       possessed by either Party that the said Party desires to protect as
       confidential against unrestricted disclosure or improper competitive use,
       and that is designated as such in the manner provided by this Agreement.

       2.     All Information that is disclosed by one Party ("Disclosing
       Party") to the other ("Receiving Party") and that is to be protected
       hereunder by the Receiving Party as Proprietary Information if in writing
       or other tangible form, shall be conspicuously labeled as "proprietary",
       "confidential" or with words of similar import at the time of delivery.

       3.     Proprietary Information of the Disclosing Party shall remain the
       property of the Disclosing Party.  Proprietary Information of the
       Disclosing Party shall be treated and safeguarded hereunder by the
       Receiving Party for a period of two (2) years from the date of
       disclosure.  The Receiving Party warrants that it applies reasonable
       safeguards against the unauthorized disclosure of Proprietary Information
       and that it

<PAGE>

       will protect such Proprietary Information at least as securely as it
       protects its own Proprietary Information.

       4.     The Receiving Party agrees that (i) the documents provided to the
       Receiving Party hereunder containing Proprietary Information of the
       Disclosing Party shall be used by the Receiving Party solely for the
       purpose of evaluating its interest in the business arrangements described
       or performing a future agreement between the Parties; (ii) it will not
       use such documents disclosed hereunder for any other purpose; and (iii)
       it will not distribute, disclose or disseminate Proprietary Information
       to anyone except its employees with a need to know who are involved in
       the consideration or performance of the business arrangements described
       herein.

       5.     This Agreement shall not apply to Information that:

              (a)    is in or enters the public domain, through no fault of the
       Receiving Party; or

              (b)    is or has been disclosed by the Disclosing Party to the
       other Party or to a third party without restriction; or

              (c)    is already in the possession of the Receiving Party,
       without restriction and prior to disclosure of the Information hereunder;
       or

              (d)    is or has been lawfully disclosed by a third party to the
       Receiving Party without an obligation of confidentiality; or

              (e)    is developed by the Receiving Party independently of any
       breach of this Agreement; or

              (f)    is disclosed when the applicable period of confidentiality
       pursuant to paragraph 3 has ended.

       Each party may disclose any Proprietary Information to the extent that
       such Party has been advised by counsel that such disclosure is necessary
       to comply with laws or regulations, or as necessary in connection with
       the filing of any patent, copyright, or similar application or
       registration; provided that each Party shall give the other Party
       reasonable advance notice of such proposed disclosure, shall use its best
       efforts to secure confidential treatment of any such Proprietary
       Information and shall advise the other Party in writing of the manner of
       the disclosure.

       6.     This Agreement shall terminate two (2) years from the date first
       written above, except the obligations of confidentiality pursuant to
       paragraph 3, and the terms of paragraph 4, shall continue for the period
       specified in paragraph 3.

       7.     Neither this Agreement nor the disclosure or receipt of
       Information shall constitute or imply a commitment by either Party with
       respect to present or future business arrangements or other subject
       matter not expressly set forth herein.

       8.     The Receiving Party shall have, or shall enter into, agreements
       with its parent, divisions, subsidiary companies and consultants that
       will safeguard the Proprietary

<PAGE>

       Information disclosed hereunder consistent with the terms of this
       Agreement. With respect to employees, the Receiving Party shall advise
       all employees who will have access to Proprietary Information as to their
       obligations contained herein.

       9.     Except as expressly provided herein, no license or right is
       granted by the Disclosing Party to the Receiving Party under any patent,
       patent application, trademark, copyright, software or trade secret.

       10.    Any amendment to this Agreement must be in writing and signed by
       authorized officials of each Party.  No failure or delay in exercising
       any right under this Agreement shall operate as a waiver thereof.

       11.    At the Disclosing Party's request, all Proprietary Information of
       the Disclosing Party in tangible form that is in the possession of the
       Receiving Party shall be returned to the Disclosing Party or destroyed.

       12.    Each Party agrees that it will not disclose the subject matter or
       terms of this Agreement or the discussions between the Parties without
       the written consent of the other Party.

       13.    This Agreement shall be governed by the laws of the United
       Kingdom.

<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly
executed by their duly authorised officers as of    December 1999 and hereby
deem that this Agreement shall be effective from the Effective Date (as defined
in the Contract).

For the Contractor:                     For the Purchaser:

INTERWAVE COMMUNICATIONS                 Lanka Cellular Services (Pvt) LIMITED

INTERNATIONAL LTD.

By                                      By

-----------------------------           ------------------------------

NAME                                    NAME

-----------------------------           ------------------------------

(PRINT IN BLOCK LETTERS)                (PRINT IN BLOCK LETTERS)

TITLE                                   TITLE

-----------------------------           ------------------------------

DATE                                    DATE

-----------------------------           ------------------------------

WITNESS                                 WITNESS

-----------------------------           ------------------------------<PAGE>

[LOGO]
U.S. Department               SOUTHERN REGION                P.O. Box 20636
of Transportation                                            Atlanta, GA  30320

                                           ***Text Omitted and Filed Separately
                                               Confidential Treatment Requested
                                         Under 17 C.F.R. Sections 200.80(b)(4),
                                                             200.83 and 230.406

FEDERAL AVIATION
ADMINISTRATION

Titan Corporation
Attn:  Linda Frady
Titan Systems Group
1900 Campus Commons Drive
Reston, VA 22091-1535

Dear Ms. Frady:

              Technical Service in Support of the Federal Aviation
              Administration's Emergency Operations Program

You are awarded Contract Number DTFA06-95-C-30063, for the performance of
subject services.  Your copy of the contract is enclosed.

If you have questions, please call me at (404) 305-5778.

Sincerely,

/s/ Marjorie M. Brooks

Marjorie M. Brooks
Contracting Officer

<PAGE>

-------------------------------------------------------------------------------
<TABLE>
<S>                              <C>                                   <C>          <C>
                                  1. THIS CONTRACT IS A RATED ORDER     RATING       PAGE  OF
SOLICITATION, OFFER AND AWARD     UNDER DPAS (15 CFR 350)                            1      45 PAGES
------------------------------------------------------------------------------------------------------------
</TABLE>
<TABLE>
<S>                 <C>                   <C>                       <C>              <C>
2. CONTRACT NO.      3. SOLICITATION NO.  4. TYPE OF SOLICITATION   5. DATE ISSUED   6. REQUISITION/PURCHASE
                                          / / SEALED BID (IFB)                          NO.
 DTFA06-95-C-30063   DTFA06-94-R-30067    /X/ NEGOTIATED (RFP)      11/10/94
------------------------------------------------------------------------------------------------------------
 ISSUED BY                  CODE                8. ADDRESS OFFER TO (IF OTHER THAN ITEM 7)
                                ---------------
 DOT/FEDERAL AVIATION ADMINISTRATION               SAME AS BLOCK 7
 SOUTHERN REGION, ASO-55N
 1701 COLUMBIA AVENUE
 COLLEGE PARK, GEORGIA 30337
</TABLE>
--------------------------------------------------------------------------------
NOTE: In sealed bid solicitations "offer" and "offeror" mean "bid" and "bidder".
--------------------------------------------------------------------------------
                                SOLICITATION
--------------------------------------------------------------------------------
9. Sealed offers in original and 3 copies for furnishing the supplies or
services in the Schedule will be received at the place specified in Item 8, or
if handcarried, in the depository located in BLOCK 7 until 4:30pm local time
12/16/94                                                   (HOUR)
 (DATE)

CAUTION - LATE Submissions, Modifications, and Withdrawals: See Section L,
Provision No. 52.214-7 or 52.215-10.  All offers are subject to all terms and
conditions contained in this solicitation.
--------------------------------------------------------------------------------
<TABLE>
<S>                    <C>                       <C>
10. FOR INFORMATION    A. NAME                   B. TELEPHONE NO. (INCLUDE AREA CODE) (NO COLLECT CALLS)
        CALL:            MARJORIE M. BROOKS          (404) 305-5778
</TABLE>
--------------------------------------------------------------------------------
                            11. TABLE OF CONTENTS
--------------------------------------------------------------------------------
<TABLE>
<CAPTION>

/X/  SEC            DESCRIPTION                  PAGE(S)  /X/  SEC.             DESCRIPTION                          PAGE(S)
<S>  <C>  <C>                                    <C>      <C>
                 PART I - THE SCHEDULE                                    PART II - CONTRACT CLAUSES
 X    A   SOLICITATION/CONTRACT FORM              1        X    I    CONTRACT CLAUSES                                  11-25
 X    B   SUPPLIES OR SERVICES AND PRICES/COSTS   1A        PART III - LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACH.
 X    C   DESCRIPTION/SPECS./WORK STATEMENT       2        X    J    LIST OF ATTACHMENTS                               26
 X    D   PACKAGING AND MARKING                   3                PART IV - REPRESENTATIONS AND INSTRUCTIONS
 X    E   INSPECTION AND ACCEPTANCE               4                  REPRESENTATIONS, CERTIFICATIONS AND
 X    F   DELIVERIES OR PERFORMANCE               5        X    K    OTHER STATEMENTS OF OFFERORS                      27-37
 X    G   CONTRACT ADMINISTRATION DATA            6-7      X    L    INSTRS., CONDS., AND NOTICES TO OFFERORS          38-42
 X    H   SPECIAL CONTRACT REQUIREMENTS           8-10     X    M    EVALUATION FACTORS FOR AWARD                      43-45
</TABLE>
--------------------------------------------------------------------------------
                OFFER (MUST BE FULLY COMPLETED BY OFFEROR)
--------------------------------------------------------------------------------
NOTE:  Item 12 does not apply if the solicitation includes the provisions at
       52.214-16, Minimum Bid Acceptance Period.
--------------------------------------------------------------------------------
12.  In compliance with the above, the undersigned agrees, if this offer is
     accepted within ___________ calendar days (50 CALENDAR DAYS UNLESS A
     DIFFERENT PERIOD IS INSERTED BY THE OFFEROR) from the date for receipt of
     offers specified above, to furnish any or all items upon which prices are
     offered at the price set opposite each item, delivered at the designated
     point(s), within the time specified in the schedule.
<TABLE>
<CAPTION>
<S>  <C>
------------------------------------------------------------------------------------------------------------------------
13.  DISCOUNT FOR PROMPT PAYMENT            10 CALENDAR DAYS      20 CALENDAR DAYS     30 CALENDAR DAYS    CALENDAR DAYS
     (SEE SECTION 1, CLAUSE NO. 52-232-8)                  %                     %                    %                %
------------------------------------------------------------------------------------------------------------------------
14.  ACKNOWLEDGMENT OF AMENDMENTS                   AMENDMENT NO.          DATE              AMENDMENT NO.        DATE
     (THE OFFEROR ACKNOWLEDGES RECEIPT OF AMEND-    --------------------------------------------------------------------
     MENTS TO THE SOLICITATION FOR OFFERORS AND          0001            12/02/94
     RELATED DOCUMENTS NUMBERED AND DATED:          --------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
15A. NAME               CODE _________ FACILITY 2T213      16.  NAME AND TITLE OF PERSON AUTHORIZED TO SIGN
     AND       The Titan Corporation                            OFFER (TYPE OR PRINT)
     ADDRESS   Titan Systems Division                           Linda M. Frady
     OF        1900 Campus Commons Drive, Suite 400             Director of Contracts - East
     OFFEROR   Reston, VA 22091
------------------------------------------------------------------------------------------------------------------------
15B. TELEPHONE NO. (INCLUDE AREA     15C. CHECK IF REMITTANCE ADDRESS    17. SIGNATURE    18. OFFER DATE
     CODE)                        X  IS DIFFERENT FROM ABOVE - ENTER     LINDA M. FRADY       18JAN95
            (703) 758-5640           SUCH ADDRESS IN SCHEDULE
------------------------------------------------------------------------------------------------------------------------
                                       AWARD (TO BE COMPLETED BY GOVERNMENT)
------------------------------------------------------------------------------------------------------------------------
19.  ACCEPTED AS TO ITEMS NUMBERED     20.  AMOUNT       21.  ACCOUNTING AND APPROPRIATION
                                                              APPROPRIATION TO BE ASSIGNED TO INDIVIDUAL
----------------------------------------------------------    DELIVERY ORDERS
22.  AUTHORITY FOR USING OTHER THAN FULL AND OPEN COMPETI-    ----------------------------------------------------------
     TION:                                                    23.  SUBMIT INVOICES TO ADDRESS SHOWN IN    ITEM
     / / 10 U.S.C. 2304(c) (    ) / / 41 U.S.C. 253(c) (   )       (4 COPIES UNLESS OTHERWISE SPECIFIED)
------------------------------------------------------------------------------------------------------------------------
24.  ADMINISTERED BY (IF OTHER THAN ITEM 7)     CODE _______  25.  PAYMENT WILL BE MADE BY      CODE _______
                                                                   DOT/FEDERAL AVIATION ADMINISTRATION
                                                                   SOUTHERN REGION, ASO-22A
                                                                   P. O. BOX 45719
                                                                   ATLANTA, GEORGIA 30320
------------------------------------------------------------------------------------------------------------------------
26.  NAME OF CONTRACTING OFFICER (TYPE OR PRINT)              27.  UNITED STATES OF AMERICA       28.  AWARD DATE
     MARJORIE M. BROOKS                                            /s/ MARJORIE M. BROOKS              7/24/95
                                                                   (SIGNATURE OF CONTRACTING OFFICER)
------------------------------------------------------------------------------------------------------------------------
IMPORTANT - Award will be made on this Form, or on Standard Form 26, or by other authorized official written notice.
------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>
RFP NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217(BAFO)
                            RATE CENTER 11 - EXHIBIT 1
                            --------------------------

           FY 95      BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
           -----                      01 APRIL 1995
<TABLE>
<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
ONSITE RC-11                   RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
------------                   ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>
CHIEF SW ENGINEER 24           [...***...]
CHIEF ENGINEER 23
CHIEF SCIENTIST 22
CHIEF ANALYST 21
SENIOR SW ENGINEER 20
SENIOR ENGINEER 19
SENIOR SCIENTIST 18
SENIOR ANALYST 17
LEVEL III SW ENGINEER 16
LEVEL III ENGINEER 15
LEVEL III SCIENTIST 14
LEVEL III ANALYST 13
LEVEL II SW ENGINEER 12
LEVEL II ENGINEER 11
LEVEL II SCIENTIST 10
LEVEL II ANALYST 9
LEVEL I SW ENGINEER 8
LEVEL I ENGINEER 7
LEVEL I SCIENTIST 6
LEVEL I ANALYST 5
ASSOCIATE SW ENGINEER 4
ASSOCIATE ENGINEER 3
ASSOCIATE SCIENTIST 2
ASSOCIATE ANALYST 1
TECH SUPPORT IV
TECH SUPPORT III
TECH SUPPORT II
TECH SUPPORT I

<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
OFFSITE RC-11                  RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
-------------                  ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>
CHIEF SW ENGINEER 24           [...***...]
CHIEF ENGINEER 23
CHIEF SCIENTIST 22
CHIEF ANALYST 21
SENIOR SW ENGINEER 20
SENIOR ENGINEER 19
SENIOR SCIENTIST 18
SENIOR ANALYST 17
LEVEL III SW ENGINEER 16
LEVEL III ENGINEER 15
LEVEL III SCIENTIST 14
LEVEL III ANALYST 13
LEVEL II SW ENGINEER 12
LEVEL II ENGINEER 11
LEVEL II SCIENTIST 10
LEVEL II ANALYST 9
LEVEL I SW ENGINEER 8
LEVEL I ENGINEER 7
LEVEL I SCIENTIST 6
LEVEL I ANALYST 5
ASSOCIATE SW ENGINEER 4
ASSOCIATE ENGINEER 3
ASSOCIATE SCIENTIST 2
ASSOCIATE ANALYST 1
TECH SUPPORT IV
TECH SUPPORT III
TECH SUPPORT II
TECH SUPPORT I
</TABLE>

       Use or Disclosure of Proposal Data is Subject to the Restrictions on
                        the Title Page of this Proposal

                        *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
RFP NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217(BAFO)
                            RATE CENTER 11 - EXHIBIT 1
                            --------------------------

           FY 96      BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
           -----                      01 APRIL 1995
<TABLE>
<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
ONSITE RC-11                   RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
------------                   ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
OFFSITE RC-11                  RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
-------------                  ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

</TABLE>

       Use or Disclosure of Proposal Data is Subject to the Restrictions on
                        the Title Page of this Proposal

                        *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
                            RATE CENTER 11-EXHIBIT 1
                            ------------------------

        FY 97      BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
        -----                    01 APRIL 1995

<TABLE>
<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
ONSITE RC-11                   RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
------------                   ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
OFFSITE RC-11                  RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
-------------                  ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

</TABLE>

 Use or Disclosure of Proposal Data is Subject to the Restrictions on the Title
                           Page of this Proposal

                        *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                        RATE CENTER 7 PART TIME ON-CALL - EXHIBIT 2
                        -------------------------------------------

            FY 95       BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
            -----                      01 APRIL 1995

<TABLE>
<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
PTOC RC-07                     RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
----------                     ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

</TABLE>

Use or Disclosure of Proposal Data is Subject to the Restrictions on the Title
Page of this Proposal

                        *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                     RATE CENTER 7 PART TIME ON-CALL - EXHIBIT 2

               FY 96     BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
                                    01 APRIL 1995

<TABLE>
<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
PTOC RC-07                     RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
----------                     ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

</TABLE>

Use or Disclosure of Proposal Data is Subject to the Restrictions on the Title
Page of this Proposal

                        *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                     RATE CENTER 7 PART TIME ON-CALL - EXHIBIT 2

               FY 97     BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
                                    01 APRIL 1995

<TABLE>
<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
PTOC RC-07                     RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
----------                     ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

</TABLE>

Use or Disclosure of Proposal Data is Subject to the Restrictions on the Title
Page of this Proposal

                        *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                         DEDICATED RATE CENTER - EXHIBIT 3
                         ---------------------------------
                      TASKING FOR A STAFF OF [...***...] OR MORE

        FY 95        BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
        -----                       01 APRIL 1995
<TABLE>
<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
DEDICATED RATE CENTER          RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
---------------------          ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

</TABLE>

Use or Disclosure of Proposal Data is Subject to the Restrictions on the Title
Page of this Proposal

                        *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                        DEDICATED RATE CENTER - EXHIBIT 3
                        ---------------------------------
                    TASKING FOR A STAFF OF [...***...] OR MORE

        FY 96        BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
        -----                       01 APRIL 1995
<TABLE>
<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
DEDICATED RATE CENTER          RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
---------------------          ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

</TABLE>

Use or Disclosure of Proposal Data is Subject to the Restrictions on the Title
Page of this Proposal

                        *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                        DEDICATED RATE CENTER - EXHIBIT 3
                        ---------------------------------
                    TASKING FOR A STAFF OF [...***...] OR MORE

        FY 97        BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
        -----                       01 APRIL 1995
<TABLE>
<CAPTION>
                               BASE       ESCL            OVHD                   G&A                   FEE       RATE @
DEDICATED RATE CENTER          RATE    [...***...]    [...***...]    SUB-T   [...***...]   SUB-T   [...***...]    SELL
---------------------          ----    -----------    -----------    -----   -----------   -----   -----------   ------
<S>                            <C>     <C>            <C>            <C>     <C>           <C>     <C>           <C>

[...***...]                    [...***...]

TECHNICAL SUPPORT II S2

</TABLE>

Use or Disclosure of Proposal Data is Subject to the Restrictions on the Title
Page of this Proposal

                        *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<CAPTION>

--------------------------------------------------------------------------------
                   REFERENCE NO. OF DOCUMENT BEING CONTINUED    PAGE    OF
    CONTINUATION
    SHEET                                                         1A    45 PAGES
--------------------------------------------------------------------------------
NAME OF OFFERER OR CONTRACTOR

--------------------------------------------------------------------------------------------------------------
  ITEM NO.            SUPPLIES/SERVICES                    QUANTITY      UNIT     UNIT PRICE         AMOUNT
--------------------------------------------------------------------------------------------------------------
<S>        <C>                                            <C>           <C>      <C>               <C>
                     SCHEDULE OF BID ITEMS

                              FOR

                TECHNICAL SERVICES IN SUPPORT OF

             THE FEDERAL AVIATION ADMINISTRATION'S

                  EMERGENCY OPERATIONS PROGRAM

    1.     PROVIDE TECHNICAL SERVICES IN SUPPORT OF                                                 $     *
           THE FEDERAL AVIATION ADMINISTRATION'S (FAA)                                               ----------
           EMERGENCY OPERATIONS PROGRAM.

</TABLE>

           *COST PROPOSAL RATES OF SUCCESSFUL OFFEROR
           TO BE INCORPORATED BY REFERENCE.

--------------------------------------------------------------------------------

<PAGE>

                                       2

                               PART I - SECTION C
                           DESCRIPTION/SPECIFICATIONS

See attached Statement of Work.

<PAGE>

                                       3

                               PART I - SECTION D
                             PACKAGING AND MARKING

Not applicable.

<PAGE>

                                       4

                               PART I - SECTION E
                           INSPECTION AND ACCEPTANCE

52.252-2      CLAUSES INCORPORATED BY REFERENCE.     (JUN 1988)

     This contract incorporates one or more clauses by reference, with the same
force and effect as if they were given in full text.  Upon request, the
Contracting Officer will make their full text available.

                                (End of clause)

         I.   FEDERAL ACQUISITION REGULATION (48 CFR CHAPTER 1) CLAUSES

52.246-4            INSPECTION OF SERVICES--FIXED-PRICE.   (FEB 1992)
52.246-15           CERTIFICATE OF CONFORMANCE.   (APR 1984)

                                   *    *    *

<PAGE>

                                       5

                               PART I - SECTION F
                            DELIVERIES OR PERFORMANCE

52.252-2      CLAUSES INCORPORATED BY REFERENCE.     (JUN 1988)

     This contract incorporates one or more clauses by reference, with the same
force and effect as if they were given in full text.  Upon request, the
Contracting Officer will make their full text available.

                                (End of clause)

         I.   FEDERAL ACQUISITION REGULATION (48 CFR CHAPTER 1) CLAUSES

52.212-13           STOP-WORK ORDER.   (AUG 1989)
52.212-15           GOVERNMENT DELAY OF WORK.   (APR 1984)

                                   *    *    *

212.01.CS     PERIOD OF PERFORMANCE

     Performance under this contract shall be for three (3) years from the date
of contract award.  Completion dates will be established for individual
delivery orders.

<PAGE>

                                       6

                               PART I - SECTION G
                           CONTRACT ADMINISTRATION DATA

SO-G-1        INVOICES

     Invoices shall be submitted, in arrears, to the following address for
certification:

   Federal Aviation Administration
   Manager, Emergency Operations Staff, ADA-20
   Room 1015E
   800 Independence Ave., S. W.
   Washington, DC 20591

Invoices shall reference the contract number and the task/delivery order number.

SO-G-2        AUTHORITY

     a.  CONTRACTING OFFICER (CO).  The Contracting Officer is the only person
with the authority to direct or negotiate changes to the contract, direct or
negotiate changes to the task/delivery orders when funds are involved, modify
or extend the contract period, issue task orders to the contract and designate
the Contracting Officer's Technical Representative (COTR).

     b.  CONTRACTING OFFICER'S TECHNICAL REPRESENTATIVE (COTR).  The COTR has
the authority over the technical content of task/delivery orders, will be the
technical contact for the contractor, will receive and discuss status of tasks,
will review the monthly report, and will provide the CO with statements of work
for proposed tasks.

SO-G-3        METHOD OF PAYMENT

     a.  Payments under this contract will be made either by check or by wire
transfer through the Treasury Financial Communications System at the option of
the Government.

     b.  The contractor shall forward the following information in writing to
the paying office not later than seven (7) days after receipt of notice of
award.

         1.   Full name, title, phone number, and complete mailing address of
responsible official(s) to whom check payments are to be sent and who may be
contacted concerning the bank account information requested below.

         2.   The following bank account information is required to accomplish
wire transfers:

              (a)   Name, address, and telegraphic abbreviation of the
receiving financial institution.

              (b)   Receiving financial institution's 9-digit American Bankers
Association (ABA) identifying number for routing transfer of funds.  (Provide
this number only if the receiving financial institution has access to the
Federal Reserve Communications System.)

<PAGE>

                                       7

              (c)   Recipient's name and account number and the receiving
financial institution to be credited with the funds.

              (d)   If the receiving financial institution does not have access
to the Federal Reserve Communications System, provide the name of the
correspondent financial institution through which the receiving financial
institution receives electronic funds transfer messages.  If a correspondent
financial institution is specified, also provide:

                    (1)   Address and telegraphic abbreviation of the
correspondent financial institution.

                    (2)   The correspondent financial institution's 9-digit ABA
identifying number for routing transfer of funds.

     c.  Any changes to the information furnished under paragraph b. of this
clause shall be furnished to the paying office in writing at least 30 days
before the effective date of the change.  It is the contractor's responsibility
to furnish these changes promptly to avoid payments to erroneous addresses or
bank accounts.

     d.  The document furnishing the information required in paragraphs b. and
c. must be dated and contain the signature, title, and telephone numbers of the
contractor official authorized to provide it, as well as the contractor's name
and contract number.

<PAGE>

                                       8

                              PART I - SECTION H
                         SPECIAL CONTRACT REQUIREMENTS

SO-H-1        ORDERING PROCEDURE

     All work under this contract will be awarded by firm-fixed price
task/delivery orders.  The Contracting Officer is the only individual
authorized to issue task/delivery orders.  The procedures will be as follows:

   a.  Statement of Work is furnished to contractor by the CO.

   b.  Contractor furnishes price proposal, with cost breakdown, to the CO for
evaluation.

   c.  Upon completion of negotiations, or determination of price
reasonableness, a firm-fixed price task/delivery order is issued to the
contractor.

SO-H-2        KEY PERSONNEL

     Pursuant to the Transportation Acquisition Regulation 1252.215.71,
entitled Key Personnel, it has been mutually agreed between the contracting
parties that the individual listed below, who represents the Contractor and its
subcontractors and consultants, is considered to meet requisite qualifications
for technical competence and experience, in order to be designated as key
personnel.  In the event it should become necessary to replace any designated
key personnel, or to designate additional individuals under future
task/delivery orders, successor and/or additional personnel are to be provided
who have equivalent or superior qualifications.  The Contractor agrees to
submit to the Contracting Officer, in duplicate, a written comprehensive resume
of the qualifications and experience of any replacement or subsequently
designated key personnel, if practical, and in any event as soon as is feasible
under the particular circumstances.

    Title                                          Key Personnel
    -----                                          -------------

    Project Manager                                _______________________
                                                      (Insert Name)

SO-H-3        RELATIONSHIPS

     The Contractor shall provide support to the Government by completing
task/delivery orders under this contract.  The Contractor shall not provide
technical direction of, or assume the Government's responsibility under any
program.  Although the effort under this contract may include recommendations
to the Government, specific Government approval and action will be necessary
before such recommendations can become effective.  The Contractor shall not
take any action with respect to any other contractor which causes any change in
that contractor's scope of work, costs or scheduling.

SO-H-4        PERSONAL SERVICES

     No personal services shall be performed under this contract.  No
contractor employee will be directly supervised by the Government.  All work
shall be ordered by task/delivery order.  If the Contractor believes any

<PAGE>

                                     9

Government action or communication has been given that would create a
personal services relationship between the Government and any contractor
employee, the Contractor shall promptly notify the Contracting Officer of
this communication or action.

     The Contractor shall not perform any inherently Governmental actions
under this contract. No contractor employee shall hold him or herself out to
be a Government employee, agent, or representative. No contractor employee
shall state orally, or in writing, at any time, that he or she is acting on
behalf of the Government. In all communications with third parties in
connection with this contract, contractor employees shall identify
themselves as contractor employees and specify the name of the company for
which they work. In all communications with other Government contractors in
connection with this contract, the Contractor employee shall state that they
have no authority to change the contract in any way and that if the other
Contractor believes this communication to be a direction to change their
contract, they should notify the Contracting Officer for that contract and
not carry out the direction until a clarification has been issued by the
Contracting Officer.

     The Contractor shall insure that all of its employees working on this
contract are informed of the substance of this clause. Nothing in this clause
shall limit the Government's rights in any way under any other provision of
the contract, including those related to the Government's right to inspect
and accept the services to be performed under this contract. The substance of
this clause shall included in all subcontracts at any tier.

SO-H-5    CONFIDENTIALITY OF DATA AND INFORMATION

     The Contractor, and any of its subcontractors, in performance of this
contract, may have need for access to, and use of, various types of data and
information in the possession of the Government which the Government obtained
under conditions which restrict the Government's right to use and disclose
the data and information, or which may be of a nature that its dissemination
or use other than in the performance of this contract, would be adverse to
the interests of the Government or other parties. Therefore, the Contractor
and its subcontractor(s) agree to abide by any restrictive use conditions on
such data and NOT TO:

     a.  Knowingly disclose such data or information to others without
written authorization from the Contracting Officer, unless the data or
information has otherwise become available to the public through no action or
fault of the Contractor.

     b.  Use for any purpose other than the performance of this contract that
data which bears a restrictive marking or legend, unless such information or
data has otherwise fallen into the public domain through no action or fault
of the Contractor.

     The Contractor agrees to make employees aware of the requirement to
maintain confidentiality of data and/or information, and in the necessity to
refrain from divulging either the proprietary data or other companies or data
that is obtained from the Government to anyone except as authorized.

     The Contractor agrees to hold the Government harmless and indemnify the
Government as to any cost/loss resulting from the unauthorized use or
disclosure of third party data or software by the Contractor, its employees,
subcontractors, or agents.

<PAGE>

                                   10

     Except as the Contracting Officer specifically authorizes in writing,
upon completion of all work under the contract, the Contractor shall return
all such data and information obtained from the Government, including all
copies, modifications, adaptation, or combinations thereof, to the Contracting
Officer.

SO-H-6    SUBCONTRACTORS/CONSULTANTS

     Before employment of any subcontractor/consultant under this contract,
the Contractor shall submit an advance written notification to the
Contracting Officer to obtain the Contracting Officer's agreement.

<PAGE>

                                   11

                           PART II - SECTION I
                             CONTRACT CLAUSES

52.252-2  CLAUSES INCORPORATED BY REFERENCE.  (JUN 1988)

     This contract incorporates one or more clauses by reference, with the
same force and effect as if they were given in full text. Upon request, the
Contracting Officer will make their full text available.

                               (End of clause)

     I.  FEDERAL ACQUISITION REGULATION (48 CFR CHAPTER 1) CLAUSES

52.202-1       DEFINITIONS.  (SEP 1991)
52.203-1       OFFICERS NOT TO BENEFIT.  (APR 1984)
52.203-3       GRATUITIES.   (APR 1984)
52.203-5       COVENANT AGAINST CONTINGENT FEES.   (APR 1984)
52.203-6       RESTRICTIONS ON SUBCONTRACTOR SALES TO THE GOVERNMENT   (JUL
1985)
52.203-7       ANTI-KICKBACK PROCEDURES.   (OCT 1988)
52.203-10      PRICE OR FEE ADJUSTMENT FOR ILLEGAL OR IMPROPER ACTIVITY.
               (SEP 1990)
52.204-2       SECURITY REQUIREMENTS.  (APR 1984)
52.209-6       PROTECTING THE GOVERNMENT'S INTEREST WHEN SUBCONTRACTING WITH
               CONTRACTORS DEBARRED, SUSPENDED, OR PROPOSED FOR DEBARMENT
               (NOV 1992)
52.215-1       EXAMINATION OF RECORDS BY COMPTROLLER GENERAL.  (FEB 1993)
52.215-33      ORDER OF PRECEDENCE.   (JAN 1986)
52.219-8       UTILIZATION OF SMALL BUSINESS CONCERNS AND SMALL DISADVANTAGED
               BUSINESS CONCERNS.  (FEB  1990)
52.219-13      UTILIZATION OF WOMEN-OWNED SMALL BUSINESSES.   (AUG 1986)
52.219-16      LIQUIDATED DAMAGES-SMALL BUSINESS SUBCONTRACTING PLAN.  (AUG
               1989)
52.220-3       UTILIZATION OF LABOR SURPLUS AREA CONCERNS.   (APR 1984)
52.222-3       CONVICT LABOR.   (APR 1984)
52.222-4       CONTRACT WORK HOURS AND SAFETY STANDARDS ACT--OVERTIME
               COMPENSATION.  (MAR 1986)
52.222-20      WALSH-HEALY PUBLIC CONTRACTS ACT.   (APR 1984)
52.222-26      EQUAL OPPORTUNITY.  (APR 1984)
52.222-35      AFFIRMATIVE ACTION FOR SPECIAL DISABLED AND VIETNAM ERA
               VETERANS.   (APR 1984)
52.222-36      AFFIRMATIVE ACTION FOR HANDICAPPED WORKERS.   (APR 1984)
52.222-37      EMPLOYMENT REPORTS ON SPECIAL DISABLED VETERANS AND VETERANS
               OF THE VIETNAM ERA.   (JAN 1988)
52.222-41      SERVICE CONTRACT ACT OF 1965, AS AMENDED.
               (MAY 1989)
52.222-43      FAIR LABOR STANDARDS ACT AND SERVICE CONTRACT ACT--PRICE
               ADJUSTMENT (MULTIPLE YEAR AND OPTION CONTRACTS).  (MAY 1989)
52.223-2       CLEAR AIR AND WATER.   (APR 1984)
52.223-6       DRUG-FREE WORKPLACE.   (JUL 1990)
52.227-1       AUTHORIZATION AND CONSENT.  (APR 1984)
52.229-3       FEDERAL, STATE, AND LOCAL TAXES.  (JAN 1991)
52.229-5       TAXES--CONTRACTS PERFORMED IN U.S. POSSESSIONS OR PUERTO RICO.
               (APR 1984)
52.232-1       PAYMENTS.  (APR 1984)

<PAGE>

                                      12
52.232-8            DISCOUNTS FOR PROMPT PAYMENT.   (APR 1989)
52.232-9            LIMITATION ON WITHHOLDING OF PAYMENTS.   (APR 1984)
52.232-11           EXTRAS.   (APR 1984)
52.232-18           AVAILABILITY OF FUNDS.   (APR 1984)
52.232-23           ASSIGNMENT OF CLAIMS.   (JAN 1986)
52.232-25           PROMPT PAYMENT.   (MAR 1994)
52.232-28           ELECTRONIC FUNDS TRANSFER PAYMENT METHODS.   (APR 1989)
52.233-1            DISPUTES.   (DEC 1991) - ALTERNATE I.   (DEC 1991)
52.233-3            PROTEST AFTER AWARD.   (AUG 1989)
52.237-3            CONTINUITY OF SERVICES.   (JAN 1991)
52.242-13           BANKRUPTCY   (APR 1991)
52.243-1            CHANGES--FIXED-PRICE. (AUG 1987) - ALTERNATE III. (APR 1984)
52.244-1            SUBCONTRACTS UNDER FIXED-PRICE CONTRACTS.
                    (APR 1991)
52.249-2            TERMINATION FOR CONVENIENCE OF THE GOVERNMENT  (FIXED PRICE)
                    (APR 1984)
52.249-8            DEFAULT  (FIXED-PRICE SUPPLY AND SERVICE).   (APR 1984)

                                    *     *     *

52.203-9            REQUIREMENT FOR CERTIFICATE OF PROCUREMENT INTEGRITY-
                    MODIFICATION.   (NOV 1990)

    (a)  Definitions.  The definitions set forth in FAR 3.104-4 are hereby
incorporated in this clause.
    (b)  The Contractor agrees that it will execute the certification set forth
in paragraph (c) of this clause WHEN REQUESTED BY THE CONTRACTING OFFICER IN
CONNECTION WITH THE EXECUTION OF ANY MODIFICATION OF THIS CONTRACT.
    (c)  Certification.  As required in paragraph (b) of this clause, the
officer or employee responsible for the modification proposal shall execute the
following certification:

         CERTIFICATE OF PROCUREMENT INTEGRITY - MODIFICATION   (NOV 1990)

     (1)  I, ________________________ (Name of certifier), am the officer or
employee responsible for the preparation of this modification proposal and
hereby certify that, to the best of my knowledge and belief, with the
exception of any information described in this certification, I have no
information concerning a violation or possible violation of subsection 27(a),
(b), (d), or (f) of the Office of Federal Procurement Policy Act, as amended*
(41 U.S.C. 423), (hereinafter referred to as "the Act"), as implemented in
the FAR, occurring during the conduct of this procurement ___________________
(contract and modification number).
     (2)  As required by subsection 27(e)(1)(B) of the Act, I further certify
to the best of my knowledge and belief, each officer, employee, agent,
representative, and consultant of _____________________ (Name of offeror) who
has participated personally and substantially in the preparation or
submission of this proposal has certified that he or she is familiar with,
and will comply with, the requirements of subsection 27(a) of the Act, as
implemented in the FAR, and will report immediately to me any information
concerning a violation or possible violation of subsection 27(a), (b), (c),
(d), or (f) of the Act, as implemented in the FAR, pertaining to this
procurement.
     (3)  Violations or possible violations:
(Continue on plain bond paper if necessary and label Certificate of Procurement
Integrity - Modification (Continuation Sheet), ENTER "NONE" IF NONE EXISTS)

<PAGE>

                                      13

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________
(Signature of the Officer or Employee
Responsible for the Modification Proposal and Date)

__________________________________________________________________________
(Typed Name of the Officer or Employee
Responsible for the Modification Proposal)

*The Act became effective on December 1, 1990.

THIS CERTIFICATION CONCERNS A MATTER WITHIN THE JURISDICTION OF AN AGENCY OF
THE UNITED STATES AND THE MAKING OF A FALSE, FICTITIOUS, OR FRAUDULENT
CERTIFICATION MAY RENDER THE MAKER SUBJECT TO PROSECUTION UNDER TITLE 18,
UNITED STATES CODE, SECTION 1001.

                            (End of certification)

     (d)  In making the certification in paragraph (2) of the certificate, the
officer or employee of the competing Contractor responsible for the offer or
bid, may rely upon a one-time certification from each individual required to
submit a certification to the competing Contractor, supplemented by periodic
training.  These certifications shall be obtained at the earliest possible
date after an individual required to certify begins employment or association
with the contractor.  If a contractor decides to rely on a certification
executed prior to the suspension of section 27 (i.e., prior to December 1,
1989), the Contractor shall ensure that an individual who has so certified is
notified that section 27 has been reinstated.  These certifications shall be
maintained by the Contractor for a period of 6 years from the date a certifying
employee's employment with the company ends or, for an agency, representative,
or consultant, 6 years from the date such individual ceases to act on behalf of
the contractor.
     (e)  The certification required by paragraph (c) of this clause is a
material representation of fact upon which reliance will be placed in executing
this modification.
                                (End of clause)

52.203-12           LIMITATION ON PAYMENTS TO INFLUENCE CERTAIN
                 FEDERAL TRANSACTIONS.   (JAN 1990)

       (a)  Definitions:
            "Agency," as used in this clause means executive agency as defined
in 2.101.
            "Covered Federal action." as used in this clause, means any of the
following Federal actions:
         (a)  The awarding of any Federal contract.
         (b)  The making of any Federal grant.
         (c)  The making of any Federal loan.
         (d)  The entering into of any cooperative agreement.
         (e)  The extension, continuation, renewal, amendment, or modification
of any Federal contract, grant, loan, or cooperative agreement.
            "Indian tribe" and "tribal organization," as used in this clause,
have the meaning provided in section 4 of the Indian Self-Determination and

<PAGE>

                                      14

Education Assistance Act (25 U.S.C. 450B) and include Alaskan natives.

     "Influencing or attempting to influence," as used in this clause, means
making, with the intent to influence, any communication to or appearance
before any officer or employee of any agency, a Member of Congress, or any
employee of a Member of Congress in connection with any covered Federal
action.

     "Local government," as used in this clause, means a unit of government
in a State and, if chartered, established, or otherwise recognized by a State
for the performance of a governmental duty, including a local public
authority, a special district, an intrastate district, a council of
governments, a sponsor group representative organization, and any other
instrumentality of a local government.

     "Officer or employee of an agency," as used in this clause, includes the
following individuals who are employed by an agency;

     (a) An individual who is appointed to a position in the Government under
title 5, United States Code including a position under a temporary appointment.

     (b) A member of the uniformed services, as defined in subsection 101(3),
title 37, United States Code.

     (c) A special Government employee, as defined in section 202, title 18,
United States Code.

     (d) An individual who is a member of a Federal advisory committee, as
defined by the Federal Advisory Committee Act, title 5, United States Code,
appendix 2.

     "Person," as used in this clause, means an individual, corporation,
company, association, authority, firm, partnership, society, State, and local
government, regardless of whether such entity is operated for profit, or not
for profit. This term excludes an Indian tribe, tribal organization, or any
other Indian organization with respect to expenditures specifically permitted
by other Federal law.

     "Reasonable compensation," as used in this clause, means, with respect
to expenditures specifically permitted by other Federal law.

     "Reasonable payment," as used in this clause, means, with respect to
professional and other technical services, a payment in an amount that is
consistent with the amount normally paid for such services in the private
sector.

     "Recipient," as used in this clause, includes the Contractor and all
subcontractors. This term excludes an Indian tribe, tribal organization, or
any other Indian organization with respect to expenditures specifically
permitted by other Federal law.

     "Regularly employed," as used in this clause, means, with respect to an
officer or employee of a person requesting or receiving a federal contract,
and officer or employee who is employed by such person for at least 130
working days within 1 year immediately proceeding the date of the submission
that initiates agency consideration of such person for receipt of such
contract, An officer or employee who is employed by such person for less than
130 working days within 1 year immediately preceding the date of the
submission that initiates agency consideration of such person shall be
considered to be regularly employed as soon as he or she is employed by such
person for 130 working days.

     "State," as used in this clause, means a State of the United States, the
District of Columbia, the Commonwealth of Puerto Rico, a territory or
possession of the United States, an agency or instrumentality of a State,
and multi-State, regional, or interstate entity having governmental duties
and powers.

     (b) Prohibitions. (1) Section 1352 of title 31, United States Code,
among other things, prohibits a recipient of a Federal contract, grant, loan,
or cooperative agreement from using appropriated funds to pay any person for
influencing or attempting to influence an officer of employee of any agency, a

<PAGE>

                                      15

Member of Congress, an officer or employee of Congress, or an employee of a
Member of Congress in connection with any of the following covered Federal
actions: the awarding of any federal contract: the making of any Federal
grant: the making of any Federal loan: the entering into of any cooperative
agreement; or the modification of any Federal contract, grant, loan, or
cooperative agreement.

     (2) The Act also requires Contractors to furnish a disclosure if any
funds other than Federal appropriated funds (including profit or fee received
under a covered Federal transaction) have been paid, or will be paid, to any
person for influencing or attempting to influence an officer or employee of
any agency, a Member of Congress, an officer or employee of Congress, or an
employee of a Member of Congress in connection with a Federal contract,
grant, loan, or cooperative agreement.

     (3) The prohibitions of the Act do not apply under the following
conditions:

          (i) Agency and legislative liaison by own employees.

               (A) The prohibition on the use of appropriated funds, in
subparagraph (b)(1) of this clause, does not apply in the case of a payment
of reasonable compensation made to an officer or employee of a person
requesting or receiving a covered Federal action if the payment is for agency
and legislative liaison activities not directly related to a covered federal
action.

               (B) For the purpose of subdivision (b)(3)(i)(A) of this
clause, providing any information specifically requested by an agency or
Congress is permitted at any time.

               (C) The following agency and legislative liaison activities
are permitted at any time where they are not related to a specific
solicitation for any covered Federal action:

                    (1) Discussing with an agency the qualities and
characteristics (including individual demonstrations) of the person's
products or services, conditions or terms of sale, and service capabilities.

                    (2) Technical discussions and other activities regarding
the application or adaptation of the person's products or services for an
agency's use.

               (D) The following agency and legislative liaison activities
are permitted where they are prior to formal solicitation of any covered
Federal action-

                    (1) Providing any information not specifically requested
but necessary for an agency to make an informed decision about initiation of
a covered Federal action;

                    (2) Technical discussions regarding the preparation of an
unsolicited proposal prior to its official submission; and

                    (3) Capability presentations by persons seeking awards
from an agency pursuant to the provisions of the Small Business Act, as
amended by Pub. L. 95-507, and subsequent amendments.

               (E) Only those services expressly authorized by subdivision
(b)(3)(i)(A) of this clause are permitted under this clause.

          (ii) Professional and technical services. (A) The prohibition on
the use of appropriated funds, in subparagraph (b)(i) of this clause, does
not apply in the case of-

               (1) A payment of reasonable compensation made to an officer or
employee of a person requesting or receiving a covered Federal action or an
extension, continuation, renewal, amendment, or modification of a covered
Federal action, if payment is for professional or technical services rendered
directly in the preparation, submission, or negotiation of any bid, proposal,
or application for that Federal action or for meeting requirements imposed by
or pursuant to law as a condition for receiving that Federal action.

               (2) Any reasonable payment to a person, other than an officer
or employee of a person requesting or receiving a covered Federal action or an

<PAGE>

                                       16

extension, continuation, renewal, amendment, or modification of a covered
Federal action if the payment is for professional or technical services rendered
directly in the preparation, submission, or negotiation of any bid, proposal, or
application for that Federal action or for meeting requirements imposed by or
pursuant to law as a condition for receiving that Federal action. Persons other
than officers or employees of a person requesting or receiving a covered Federal
action include consultants and trade associations.
         (B) For purposes of subdivision (b) (3) (ii) (A) of this clause,
"professional and technical services" shall be limited to advice and analysis
directly applying any professional or technical discipline. For example,
drafting of a legal document accompanying a bid or proposal by a lawyer is
allowable.
     Similarly, technical advice provided by an engineer on the performance or
operational capability of a piece of equipment rendered directly in the
negotiation of a contract is allowable. However, communications with the intent
to influence made by a professional (such as a licensed lawyer) or a technical
person (such as a licensed accountant) are not allowable under this section
unless they provide advice and analysis directly applying their professional or
technical expertise and unless the advice or analysis is rendered directly and
solely in the preparation, submission or negotiation of a covered Federal
action. Thus, for example, communications with the intent to influence made by a
lawyer that do not provide legal advice or analysis directly and solely related
to the legal aspects of his or her client's proposal, but generally advocate one
proposal over another are not allowable under this section because the lawyer is
not providing professional legal services. Similarly, communications with the
intent to influence made by an engineer providing an engineering analysis
prior to the preparation of submission of a bid or proposal are not allowable
under this section since the engineer is providing technical services but not
directly in the preparation, submission or negotiation of a covered Federal
action.
         (C) Requirements imposed by or pursuant to law as a condition for
receiving a covered Federal award include those required by law or regulation
and any other requirements in the actual award documents.
         (D) Only those services expressly authorized by subdivisions (b) (3)
(ii) (A) (1) and (2) of this clause are permitted under this clause.
         (E) The reporting requirements of FAR 3.803(a) shall not apply with
respect to payments of reasonable compensation made to regularly employed
officers or employees of a person.
     (c) Disclosure.
         (1) The Contractor who requests or receives from an agency a Federal
contract shall file with that agency a disclosure form, OMB standard form LLL,
Disclosure of Lobbying Activities, if such person has made or has agreed to make
any payment using non appropriated funds (to include profits from any covered
Federal action), which would be prohibited under subparagraph (b) (1) of this
clause, if paid for with appropriated funds.
         (2) The Contractor shall file a disclosure form at the end of each
calendar quarter in which there occurs any event that materially affects the
accuracy of the information contained in any disclosure form previously filed by
such person under subparagraph (c)(1) of this clause. An event that materially
affects the accuracy of the information reported includes-
              (i) A cumulative increase of $25,000 or more in the amount paid or
expected to be paid for influencing or attempting to influence a covered Federal
action; or
             (ii) A change in the person(s) or individual(s) influence or
attempt to influence a covered Federal action.
             (iii) A change in the officer(s), employee(s), or Member(s)
contacted to influence or attempt to influence a covered Federal action.
         (3) The Contractor shall require the submittal of a certification, and
if required, a disclosure form by any person who requests or received any

<PAGE>

                                       17
subcontract exceeding $100,000 under the Federal contract.
         (4) All subcontractor disclosure forms (but not certifications) shall
be forwarded from tier to tier until received by the prime Contractor. The prime
Contractor shall submit all disclosures to the Contracting Officer at the end of
the calendar quarter in which the disclosure form is submitted by the
subcontractor. Each subcontractor certification shall be retained in the
subcontract file of the awarding Contractor.
     (d) Agreement. The Contractor agrees not to make any payment prohibited by
this clause.
     (e) Penalties.
         (1) Any person who makes an expenditure prohibited under paragraph (a)
of this clause or who fails to file or amend the disclosure form to be filed or
amended by paragraph (b) of this clause shall be subject to civil penalties as
provided for by 31 U.S.C. 1352. An imposition of a civil penalty does not
prevent the Government form seeking any other remedy that may be applicable.
         (2) Contractors may rely without liability on the representation made
by their subcontractors in the certification and disclosure form.
     (f) Cost allowability. Nothing in this clause makes allowable or reasonable
any costs which would otherwise be unallowable or unreasonable. Conversely,
costs made specifically unallowable by the requirements in this clause will not
be made allowable under any other provision.

                                (End of clause)

52.216-18          ORDERING. (APR 1984)

     (a) Any supplies and services to be furnished under this contract shall be
ordered by issuance of delivery orders by the Contracting Officer.
     (b) All delivery orders are subject to the terms and conditions of this
contract. In the event of conflict between a delivery order and this contract,
the contract shall control.
     (c) If mailed, a delivery order is considered "issued" when the Government
deposits the order in the mail. Orders may be issued orally or by written
telecommunications.

                                (End of clause)

52.216-19          DELIVERY-ORDER LIMITATIONS. (APR 1984)

     (a) Minimum order. When the Government requires supplies or services
covered by this contract in an amount of less than $1,000, the Government is not
obligated to purchase, nor is the Contractor obligated to furnish, those
supplies or services under the contract.
     (b) Maximum order. The Contractor is not obligated to honor--
         (1) Any order for a single item in excess of $500,000;
         (2) Any order for a combination of items in excess of $500,000; or
         (3) A series of orders from the same ordering office within thirty (30)
days that together call for quantities exceeding the limitation in subparagraph
(1) or (2) above.
         (c) If this is a requirements contract (i.e., includes the Requirements
clause at subsection 52.216-21 of the Federal Acquisition Regulation (FAR)), the
Government is not required to order a part of any one requirement from the
Contractor if that requirement exceeds the maximum-order limitations in
paragraph (b) above.
         (d) Notwithstanding paragraphs (b) and (c) above, the Contractor shall
honor any order exceeding the maximum order limitations in paragraph (b),
unless that order (or orders) is returned to the ordering office within ten (10)
days after issuance, with written notice stating the Contractor's intent

<PAGE>

                                      18

not to ship the item (or items) called for and the reasons. Upon receiving
this notice, Government may acquire the supplies or services from another
source.

                                (End of clause)

52.216-21     REQUIREMENTS. (APR 1984)

     (a) This is a requirements contract for the supplies or services
specified, and effective for the period stated, in the Schedule. The
quantities of supplies or services specified in the Schedule are estimates
only and are not purchased by this contract. Except as this contract may
otherwise provide, if the Government's requirements do not result in orders
in the quantities described as "estimated" or "maximum" in the Schedule, that
fact shall not constitute the basis for an equitable price adjustment.

     (b) Delivery or performance shall be made only as authorized by orders
issued in accordance with the Ordering clause. Subject to any limitations in
the Delivery-Order Limitations clause or elsewhere in this contract, the
Contractor shall furnish to the Government all supplies or services specified
in the Schedule and called for by orders issued in accordance with the
Ordering clause. The Government may issue orders requiring delivery to
multiple destinations or performance at multiple locations.

     (c) Except as this contract otherwise provides, the Government shall
order from the Contractor all the supplies or services specified in the
Schedule that are required to be purchased by the Government activity or
activities specified in the Schedule.

     (d) The Government is not required to purchase from the Contractor
requirements in excess of any limit on total orders under this contract.

     (e) If the Government urgently requires delivery of any quantity of an
item before the earliest date that delivery may be specified under this
contract, and if the Contractor will not accept an order providing for the
accelerated delivery, the Government may acquire the urgently required goods
or services from another source.

     (f) Any order issued during the effective period of this contract and
not completed within that period shall be completed by the Contractor within
the time specified in the order. The contract shall govern the Contractor's
and Government's rights and obligations with respect to that order to the
same extent as if the order were completed during the contract's effective
period.

                                (End of clause)

52.219-9     SMALL BUSINESS AND SMALL DISADVANTAGED BUSINESS SUBCONTRACTING
             PLAN. (JAN 1991)

     (a) This clause does not apply to small business concerns.

     (b) "Commercial product," as used in this clause, means a product in
regular production that is sold in substantial quantities to the general
public and/or industry at established catalog or market prices. It also means
a product which, in the opinion of the Contracting Officer, differs only
insignificantly from the Contractor's commercial product.

     "Subcontract," as used in this clause, means any agreement (other than
one involving an employer-employee relationship) entered into by a Federal
Government prime Contractor or subcontractor calling for supplies or services
required for performance of the contract or subcontract.

     (c) The offeror, UPON REQUEST BY THE CONTRACTING OFFICER, shall submit
and negotiate a subcontracting plan, where applicable, which separately
addresses subcontracting with small business concerns and with small
disadvantaged

<PAGE>

                                      19

business concerns. If the offeror is submitting an individual contract plan,
the plan must separately address subcontracting with small business concerns
and with small disadvantaged business concerns with a separate part for the
basic contract and separate parts for each option (if any). The plan shall be
included in and made a part of the resultant contract. The subcontracting
plan shall be negotiated within the time specified by the Contracting
Officer. Failure to submit and negotiate the subcontracting plan shall make
the offeror ineligible for award of a contract.

     (d) The offeror's subcontracting plan shall include the following:

          (1) Goals, expressed in terms of percentages of total planned
subcontracting dollars, for the use of small business concerns and small
disadvantaged business concerns as subcontractors. The offeror shall include
all subcontracts that contribute to contract performance, and may include a
proportionate share of products and services that are normally allocated as
indirect costs.

          (2) A statement of--

               (i) Total dollars planned to be subcontracted;

               (ii) Total dollars planned to be subcontracted to small
business concerns; and

               (iii) Total dollars planned to be subcontracted to small
disadvantaged business concerns.

          (3) A description of the principal types of supplies and services
to be subcontracted, and an identification of the types planned for
subcontracting to (i) small business concerns and (ii) small disadvantaged
business concerns.

          (4) A description of the method used to develop the subcontracting
goals in (1) above.

          (5) A description of the method used to identify potential sources
for solicitation purposes (e.g., existing company source lists, the
Procurement Automated Source System (PASS) of the Small Business
Administration, the National Minority Purchasing Council Vendor Information
Service, the Research and Information Division of the Minority Business
Development Agency in the Department of Commerce, or small and small
disadvantaged business concerns trade associations).

          (6) A statement as to whether or not the offeror included
indirect costs in establishing subcontracting goals, and a description of
the method used to determine the proportionate share of indirect costs to be
incurred with (i) small business concerns and (ii) small disadvantaged
business concerns.

          (7) The name of the individual employed by the offeror who will
administer the offeror's subcontracting program, and a description of the
duties of the individual.

          (8) A description of the efforts the offeror will make to assure
that small business concerns and small disadvantaged business concerns have
an equitable opportunity to compete for subcontracts.

          (9) Assurances that the offeror will include the clause in this
contract entitled "Utilization of Small Business Concerns and Small
Disadvantaged Business Concerns" in all subcontracts that offer further
subcontracting opportunities, and that the offeror will require all
subcontractors (except small business concerns) who receive subcontracts in
excess of $500,000 ($1,000,000 for construction of any public facility), to
adopt a plan similar to the plan agreed to by the offeror.

          (10) Assurances that the offeror will (i) cooperate in any studies
or surveys as may be required, (ii) submit periodic reports in order to allow
the Government to determine the extent of compliance by the offeror with the
subcontracting plan, (iii) submit Standard Form (SF) 294, Subcontracting
Report for Individual Contracts, and/or SF 295, Summary Subcontract Report,
in accordance with the instructions on the forms, and (iv) ensure that its
subcontractors agree to submit Standard Forms 294 and 295.

<PAGE>
                                       20

           (11)  A recitation of the types of records the offeror will
maintain to demonstrate procedures that have been adopted to comply with the
requirements and goals in the plan, including establishing source lists; and
a description of its efforts to locate small and small disadvantaged business
concerns and award subcontracts to them. The records shall include at least
the following (on a plant-wide or company-wide basis, unless otherwise
indicated):

                 (i)    Source lists, guides, and other data that identify
small and small disadvantaged business concerns.

                 (ii)   Organizations contacted in an attempt to locate
sources that are small or small disadvantaged business concerns.

                 (iii)  Records on each subcontract solicitation resulting in
an award of more than $100,000, indicating (A) whether small business
concerns were solicited and if not, why not, (B) whether small disadvantaged
business concerns were solicited and if not, why not, and (C) if applicable,
the reason award was not made to a small business concern.

                 (iv)   Records of any outreach efforts to contact (A) trade
associations, (B) business development organizations, and (C) conferences and
trade fairs to locate small and small disadvantaged business sources.

                 (v)    Records of internal guidance and encouragement
provided to buyers through (A) workshops, seminars, training, etc., and (B)
monitoring performance to evaluate compliance with the program's requirements.

                 (vi)   On a contract-by-contract basis, records to support
award data submitted by the offeror to the Government, including the name,
address, and business size of each subcontractor. Contractors having company
or division-wide annual plans need not comply with this requirement.

     (e)   In order to effectively implement this plan to the extent
consistent with efficient contract performance, the Contractor shall perform
the following functions:

           (1)   Assist small business and small disadvantaged business
concerns by arranging solicitations, time for the preparation of bids,
quantities, specifications, and delivery schedules so as to facilitate the
participation by such concerns. Where the Contractor's lists of potential
small business and small disadvantaged subcontractors are excessively long,
reasonable effort shall be made to give all such small business concerns an
opportunity to compete over a period of time.

           (2)   Provide adequate and timely consideration of the
potentialities of small business and small disadvantaged business concerns in
all "make-or-buy" decisions.

           (3)   Counsel and discuss subcontracting opportunities with
representatives of small and small disadvantaged business firms.

           (4)   Provide notice to subcontractors, concerning penalties for
misrepresentations of business status as small business or small
disadvantaged business for the purpose of obtaining a subcontract that is to
be included as part or all of a goal contained in the Contractor's
subcontracting plan.

     (f)   A master subcontracting plan on a plant or division-wide basis
which contains all the elements required by (d) above, except goals, may be
incorporated by reference as a part of the subcontracting plan required of
the offeror by this clause; provided, (1) the master plan has been approved,
(2) the offeror provides copies of the approved master plan and evidence of
its approval to the Contracting Officer, and (3) goals and any deviations
from the master plan deemed necessary by the Contracting Officer to satisfy
the requirements of this contract are set forth in the individual
subcontracting plan.

     (g)   (1)   If a commercial product is offered, the subcontracting plan
required by this clause may relate to the offeror's production generally, for
both commercial and non commercial products, rather than solely to the
Government contract. In these cases, the offeror shall, with the concurrence
of the Contracting Officer, submit one company-wide or division-wide annual
plan.

           (2)   The annual plan shall be reviewed for approval by the agency
awarding the offeror its first prime contract requiring a subcontracting plan

<PAGE>

                                       21

during the fiscal year, or by an agency satisfactory to the Contracting
Officer.

           (3)   The approved plan shall remain in effect during the
offeror's fiscal year for all of the offeror's commercial products.

     (h)   Prior compliance of the offeror with other such subcontracting
plans under previous contracts will be considered by the Contracting Officer
in determining the responsibility of the offeror for award of the contract.

     (i)   The failure of the Contractor or subcontractor to comply in good
faith with (1) the clause of this contract entitled "Utilization of Small
Business Concerns and Small Disadvantaged Business Concerns," or (2) an
approved plan required by this clause, shall be a material breach of the
contract.

                                 (End of clause)

52.232-17  INTEREST.  (JAN 1991)

     (a)   Notwithstanding any other clause of this contract, all amounts
except amounts that are repayable and which bear interest under a Price
Reduction for Defective Cost or Pricing Data clause that become payable by
the Contractor to the Government under this contract (net of any applicable
tax credit under the Internal Revenue Code (26 U.S.C. 1481)) shall bear
simple interest from the date due until paid unless paid within 30 days of
becoming due. The interest rate shall be the interest rate established by
the Secretary of the Treasury as provided in Section 12 of the Contract
Disputes Act of 1978 (Public Law 95-563), which is applicable to the period
in which the amount becomes due, as provided in paragraph (b) of this clause,
and then at the rate applicable for each six-month period as fixed by the
Secretary until the amount is paid.

     (b)   Amounts shall be due at the earliest of the following dates:

           (1)   The date fixed under this contract.

           (2)   The date of the first written demand for payment consistent
with this contract, including any demand resulting from a default termination.

           (3)   The date the Government transmits to the Contractor a
proposed supplemental agreement to confirm completed negotiations
establishing the amount of debt.

           (4)   If this contract provides for revision of prices, the date
of written notice to the Contract or stating the amount of refund payable in
connection with a pricing proposal or a negotiated pricing agreement not
confirmed by contract modification.

     (c)   The interest charge made under this clause may be reduced under
the procedures prescribed in 32.614-2 of the Federal Acquisition Regulation
in effect on the date of this contract.

                                 (End of clause)

1252.215-70  KEY PERSONNEL AND/OR FACILITIES  (OCT 1994)

     (a)   The personnel and/or facilities as specified below are considered
essential to the work being performed hereunder and may, with the consent of
the contracting parties, be changed from time to time during the course of
the contract by adding or deleting personnel and/or facilities, as
appropriate.

     (b)   Prior to removing, replacing, or diverting any of the specified
individuals or facilities, the Contractor shall notify, in writing, and

<PAGE>

                                       22

receive consent from, the Contracting Officer reasonably in advance of the
action and shall submit justification (including proposed substitutions) in
sufficient detail to permit evaluation of the impact on this contract.

     (c)   No diversion shall be made by the Contractor without the written
consent of the Contracting Officer. The Contracting Officer may ratify, in
writing, the change and such ratification shall constitute the consent of the
Contracting Officer required by this clause.

KEY PERSONNEL UNDER THIS CONTRACT:  PROJECT MANAGER

                                 (End of clause)

1252.219-70  SMALL BUSINESS AND SMALL DISADVANTAGED BUSINESS SUBCONTRACTING
             REPORTING  (OCT 1994)

     (a)   The Contractor shall submit the Summary Subcontract Report
(Standard Form 295 (SF-295)) to the Department of Transportation, Office of
the Secretary, Office of Small and Disadvantaged Business Utilization (S-42),
400 7th St., SW, Washington, DC, 20590.

     (b)   The Contractor shall report the information in Blocks 14, 17 and
18 of the SF-295.

     (c)   The Contractor shall include this clause in all subcontracts that
include the clause at (FAR) 48 CFR 52.219-9.

                                 (End of clause)

1252.222-70  STRIKES OR PICKETING AFFECTING TIMELY COMPLETION OF THE CONTRACT
             WORK  (OCT 1994)

     Notwithstanding any other provision hereof, the Contractor is
responsible for delays arising out of labor disputes, including but not
limited to strikes, if such strikes are reasonably avoidable. A delay caused
by a strike or by picketing which constitutes an unfair labor practice is not
excusable unless the Contractor takes all reasonable and appropriate action
to end such a strike or picketing, such as the filing of a charge with the
National Labor Relations Board, the use of other available Government
procedures, and the use of private boards or organizations for the settlement
of disputes.

                                 (End of clause)

1252.222-71  STRIKES OR PICKETING AFFECTING ACCESS TO A DOT FACILITY  (OCT 1994)

     If the Contracting Officer notifies the Contractor in writing that a
strike or picketing: (a) is directed at the Contractor or subcontractor or
any employee of either; and (b) impedes or threatens to impede access by any
person to a DOT facility where the site of the work is located, the
Contractor shall take all appropriate action to end such strike or picketing,
including, if necessary, the filing of a charge of unfair labor practice with
the National Labor Relations Board or the use of other available judicial or
administrative remedies.

                                 (End of clause)

<PAGE>

                                       23

1252.223-71  ACCIDENT AND FIRE REPORTING  (OCT 1994)

     (a)   The Contractor shall report to the Contracting Officer any
accident or fire occurring at the site of the work which causes:

           (1)   A fatality or as much as one lost workday on the part of any
employee of the Contractor or subcontractor at any tier;

           (2)   Damage of $1,000 or more to Federal property, either real or
personal;

           (3)   Damage of $1,000 or more to Contractor or subcontractor
owned or leased motor vehicles or mobile equipment; or

           (4)   Damage for which a contract time extension may be requested.

     (b)   Accident and fire reports required by paragraph (a) above shall be
accomplished by the following means:

           (1)   Accidents or fires resulting in death, hospitalization of
five or more persons, or destruction of Federal property (either real or
personal), the total value of which is estimated at $100,000 or more, shall
be reported immediately by telephone to the Contracting Officer or his/her
authorized representative and shall be confirmed by telegram or facsimile
transmission with 24 hours to the Contracting Officer. Such telegram or
facsimile transmission shall state all known facts as to extent of injury and
damage and as to cause of the accident or fire.

           (2)   Other accident and fire reports required by paragraph (a)
above may be reported by the Contractor using a state, private insurance
carrier, or Contractor accident report form which provides for the statement
of:

                 (i)    The extent of injury; and

                 (ii)   The damage and cause of the accident or fire.

Such report shall be mailed or otherwise delivered to the Contracting Officer
within 48 hours of the occurrence of the accident or fire.

     (c)   The Contractor shall assure compliance by subcontractors at all
tiers with the requirements of this clause.

                                 (End of clause)

1228.228-72  RISK AND INDEMNITIES  (OCT 1994)

     The Contractor hereby agrees to indemnify and hold harmless the
Government, its officers and employees from and against all claims, demands,
damages, liabilities, losses, suits and judgments (including all costs and
expenses incident thereto) which may be suffered by, accrued against, be
charged to or recoverable from the Government, its officers and employees by
reason of injury to or death of any person other than officers, agents, or
employees of the Government or by reason of damage to property of others of
whatsoever kind (other than the property of the Government, its officers,
agents or employees) arising out of the operation of the aircraft. In the
event the Contractor

<PAGE>

                                     24

holds or obtains insurance in support of this covenant, a Certificate of
Insurance shall be delivered to the Contracting Officer.

               (End of clause)

1252.237-70 QUALIFICATIONS OF EMPLOYEES (OCT 1994)

     The Contracting Officer may require dismissal from work of those
employees which he/she deems incompetent, careless, insubordinate, unsuitable
or otherwise objection-able, or whose continued employment he/she deems
contrary to the public interest or inconsistent with the best interest of
national security. The Contractor shall fill out, and cause each of its
employees on the contract work to fill out, for submission to the Government,
such forms as may be necessary for security or other reasons. Upon request of
the Contracting Officer, the Contractor's employees shall be fingerprinted.
Each employee of the Contractor shall be a citizen of the United States of
America, or an alien who has been lawfully admitted for permanent residence
as evidenced by Alien Registration Receipt Card Form I-151, or who presents
other evidence from the Immigration and Naturalization Service that
employment will not affect his/her immigration status.

               (End of provision)

1252.242-71 CONTRACTOR TESTIMONY (OCT 1994)

     All requests for the testimony of the Contractor or its employees, and
any intention to testify as an expert witness relating to: (a) any work
required by, and/or performed under, this contract; or (b) any information
provided by any party to assist the Contractor in the performance of this
contract, shall be immediately reported to the Contracting Officer. Neither
the Contractor nor its employees shall testify on a matter related to work
performed or information provided under this contract, either voluntarily or
pursuant to a request, in any judicial or administrative proceeding unless
approved by the Contracting Officer or required by a judge in a final court
order.

               (End of clause)

1252.242-72 DISSEMINATION OF CONTRACT INFORMATION (OCT 1994)

     The Contractor shall not publish, permit to be published, or distribute
for public consumption, any information, oral or written, concerning the
results or conclusions made pursuant to the performance of this contract,
without the prior written consent of the Contracting Officer. Two copies of
any material proposed to be published or distributed shall be submitted to
the Contracting Officer.

               (End of clause)

1252.242-73 CONTRACTING OFFICER'S TECHNICAL REPRESENTATIVE (OCT 1994)

    (a) The Contracting Officer may designate Government personnel to act as
the Contracting Officer's Technical Representative (COTR) to perform
functions under the contract such as review and/or inspection and acceptance
of supplies, services, including construction, and other functions of a
technical nature. The Contracting Officer will provide a written notice of
such designation to the Contractor within five working days after contract
award or for construction, not less than five working days prior to giving
the contractor the notice to proceed. The designation letter will set forth
the

<PAGE>

                                       25

authorities and limitations of the COTR under the contract.

     (b) The Contracting Officer cannot authorize the COTR or any other
representative to sign documents (i.e., contracts, contract modifications,
etc.) that require the signature of the Contracting Officer.

               (End of clause)

<PAGE>

                                       26

                              PART III - SECTION J
                               LIST OF ATTACHMENTS

ATTACHMENT 1 - STATEMENT OF WORK, 3 PAGES

<PAGE>

                                       27

                              PART IV - SECTION K
       REPRESENTATIONS, CERTIFICATIONS AND OTHER STATEMENTS OF OFFERORS

52.252-1 SOLICITATION PROVISIONS INCORPORATED BY REFERENCE. (JUN 1988)

     This solicitation incorporates one or more solicitation provisions by
reference, with the same force and effect as if they were given in full text.
Upon request, the Contracting Officer will make their full text available.

                            (End of provision)

          I. FEDERAL ACQUISITION REGULATION (48 CFR CHAPTER 1)
                        SOLICITATION PROVISIONS

52.222-21 CERTIFICATION OF NONSEGREGATED FACILITIES. (APR 1984)
52.223-5  CERTIFICATION REGARDING A DRUG-FREE WORKPLACE. (JUL 1990)

52.203-2 CERTIFICATE OF INDEPENDENT PRICE DETERMINATION. (APR 1985)

     (a) The offeror certifies that--

         (1) The prices in this offer have been arrived at independently,
without, for the purpose of restricting competition, any consultation,
communication, or agreement with any other offeror or competitor relating to
(i) those prices, (ii) the intention to submit an offer, or (iii) the methods
or factors used to calculate the prices offered;

         (2) The prices in this offer have not been and will not be knowingly
disclosed by the offeror, directly or indirectly, to any other offeror or
competitor before bid opening (in the case of a sealed bid solicitation) or
contract award (in the case of a negotiated solicitation) unless otherwise
required by law; and

         (3) No attempt has been made or will be made by the offeror to
induce any other concern to submit or not to submit an offer for the purpose
of restricting competition.

     (b) Each signature on the offer is considered to be a certification by
the signatory that the signatory--

         (1) Is the person in the offeror's organization responsible for
determining the prices being offered in this bid or proposal, and that the
signatory has not participated and will not participate in any action
contrary to subparagraphs (a)(1) through (a)(3) above; or

         (2) (i) Has been authorized in writing, to act as agent for the
following principals in certifying that those principals have not
participated, and will not participate in any action contrary to
subparagraphs (a)(1) through (a)(3) above.

         Linda M. Frady, Director of Contracts - East (insert full name
of person(s) in the offeror's organization responsible for determining the
prices offered in this bid or proposal, and the title of his or her position
in the offeror's organization.)

             (ii) As an authorized agent, does certify that the principals
named in subdivision (b)(2)(i) above have not participated, and will not
participate, in any action contrary to subparagraphs (a)(1) through (a)(3)
above; and

             (iii) As an agent, has not personally participated, and will not
participate, in any action contrary to subparagraphs (a)(1) through (a)(3)
above.

<PAGE>

                                       28

     (c) If the offeror deletes or modifies subparagraph (a)(2) above, the
offeror must furnish with its offer a signed statement setting forth in
detail the circumstances of the disclosure.

                             (End of provision)

52.203-4 CONTINGENT FEE REPRESENTATION AND AGREEMENT. (APR 1984)

     (a) Representation.  The offeror represents that, except for full-time
bona fide employees working solely for the offeror, the offeror--

     Note: The offeror must check the appropriate boxes. For interpretation
of the representation, including the term "bona fide employee," see Subpart
3.4 of the Federal Acquisition Regulation.

         (1)  / / has, /XX/ has not employed or retained any person or
company to solicit or obtain this contract; and

         (2) / / has, /XX/ has not paid or agreed to pay to any person or
company employed or retained to solicit or obtain this contract any
commission, percentage, brokerage, or other fee contingent upon or resulting
from the award of this contract.

     (b) Agreement.  The offeror agrees to provide information relating to
the above Representation as required by the Contracting Officer and, when
subparagraph (a)(1) or (a)(2) is answered affirmatively, to promptly submit
to the Contracting Officer--

         (1) A completed Standard Form 119, Statement of Contingent or Other
Fees, (SF 119); or

          (2) A signed statement indicating that the SF 119 was previously
submitted to the same contracting office, including the date and applicable
solicitation or contract number, and representing that the prior SF 119
applies to this offer or quotation.

                            (End of provision)

52.203-8 REQUIREMENT FOR CERTIFICATE OF PROCUREMENT INTEGRITY. (NOV 1990) -
         ALTERNATE I. (SEP 1990)

     (a) Definitions.  The definitions set forth in FAR 3.104-4 are hereby
incorporated in this provision.

     (b) Certifications.  As required in paragraph (c) of this provision, the
officer or employee responsible for this offer shall execute the following
certification:

                       CERTIFICATE OF PROCUREMENT INTEGRITY

         (1) I, Linda M. Frady (Name of certifier), am the officer or
employee responsible for the preparation of this offer or bid and hereby
certify that, to the best of my knowledge and belief, with the exception of
any information described in this certificate, I have no information
concerning a violation or possible violation of subsection 27(a), (d) or (f)
of the Office of Federal Procurement Policy Act, as amended* (41 U.S.C. 423)
(hereinafter referred to as "the Act"), as implemented in the FAR, occurring
during the conduct of this procurement DTFA06-94-R-30067 (solicitation
number).

         (2) As required by subsection 27(e)(1)(B) of the Act, I further
certify that, to the best of my knowledge and belief, each officer, employee,
agent, representative, and consultant of Titan Corporation (Name of
offeror) who has participated personally and substantially in the preparation
or submission of this offer has certified that he or she is familiar with,
and will comply with, the requirement of this subsection 27(a) of the Act, as

<PAGE>

                                          29
implemented in the FAR, and will report immediately to me any information
concerning a violation or possible violation of the Act, as implemented in the
FAR, pertaining to this procurement.
     (3)  Violations or possible violations:
(Continue on plain bond paper if necessary and label Certificate of Procurement
Integrity (Continuation Sheet), ENTER NONE IF NONE EXISTS)

NONE
--------------------------------------------------

--------------------------------------------------

--------------------------------   ---------------

(4) I agree that, if awarded a contract under this solicitation, the
certification required by subsection 27(e)(1)(B) of the Act shall be maintained
in accordance with paragraph (f) of this provision.

(Signature of the Officer or Employee             (Date)
Responsible for the Offer)

Linda M. Frady /s/ Linda M. Frady                 1/18/95
----------------------------------------
(Typed Name of the Officer or Employee
Responsible for the Offer)

*The Act became effective on December 1, 1990.

THIS CERTIFICATION CONCERNS A MATTER WITHIN THE JURISDICTION OF AN AGENCY OF THE
UNITED STATES AND THE MAKING OF A FALSE, FICTITIOUS, OR FRAUDULENT CERTIFICATION
MAY RENDER THE MAKER SUBJECT TO PROSECUTION UNDER TITLE 18, UNITED STATES CODE,
SECTION 1001.
                                (End of certification)
  (c)  For procurements, including contract modifications, in excess of $100,000
made using procedures other than sealed bidding, the signed certifications shall
be submitted by the successful Offeror to the Contracting Officer within the
time period specified by the Contracting Officer when requesting the
certificates except as provided in subparagraphs (c)(1) through (c)(5) of this
clause.  In no event shall the certificate be submitted subsequent to award of a
contract or execution of a contract modification:
     (1)  For letter contracts, other unpriced contracts, or unpriced contract
modifications, whether or not the unpriced contract or modification contains a
maximum or not to exceed price, the signed certifications shall be submitted
prior to the award of the letter contract, unpriced contract, or unpriced
contract modification, and prior to the definitization of the letter contract or
the establishment of the price of the unpriced contract or unpriced contract
modification.  The second certification shall apply only to the period between
award of the letter contact and execution of the document definitizing the
letter contract, or award of the unpriced contract or unpriced contract
modification and execution of the document establishing the definitive price of
such unpriced contract or unpriced contract modification.
     (2)  For basic ordering agreements, prior to the execution of a priced
order; prior to the execution of an unpriced order, whether or not the unpriced
order contains a maximum or not to exceed price; and, prior to establishing the
price of an unpriced order.  The second certificate to be submitted for unpriced
orders shall apply to the period between award of the unpriced order and
execution of the document establishing the definitive price for such order.
     (3)  A certificate is not required for indefinite delivery contracts (see
subpart 16.5) unless the total estimated value of all orders eventually to be
placed under the contract is expected to exceed $100,000.

<PAGE>

                                          30
     (4)  For contracts and contract modifications which include options, a
certificate is required when the aggregate value of the contract or contract
modification and all options (see 3.104-4(e)) exceeds $100.000.
     (5)  For purposes of contracts entered into under section 8(a) of the SBA,
the business entity with whom the SBA contracts, and not the SBA, shall be
required to comply with the certification requirements of subsection 27(e). The
SBA shall obtain the signed certificate from the business entity and forward the
certificate to the Contracting Officer prior to the award of a contract to the
SBA.
     (6)  Failure of an Offeror to submit the signed certificate within the time
prescribed by the Contracting Officer shall cause the offer to be rejected.
  (d)  Pursuant to FAR 3.104-9(d), the Offeror may be requested to execute
additional certifications at the request of the Government.  Failure of an
offeror to submit the additional certifications shall cause its offer to be
rejected.
  (e)  A certification containing a disclosure of a violation or possible
violation will not necessarily result in the withholding of an award under this
solicitation.  However, the Government, after evaluation of the disclosure, may
cancel this procurement or take any other appropriate actions in the interest of
the Government, such as disqualification of the Offeror.
  (f)  In making the certification in subparagraph (b)(2) of the certificate,
the officer or employee of the competing contractor responsible for the offer
may rely upon a one-time certification from each individual required to submit a
certification to the competing contractor, supplemented by periodic training.
These certifications shall be maintained by the Contractor for 6 years from the
date a certifying employee's employment with the company ends or, for an agent,
representative, or consultant, 6 years from the date such individual ceases to
act on behalf of the Contractor.
  (g)  Certifications under paragraphs (b) and (d) of this provision are a
material representation of fact upon which reliance will be placed in awarding a
contract.

                                  (End of provision)

52.203-11           CERTIFICATION AND DISCLOSURE REGARDING PAYMENTS TO INFLUENCE
                    CERTAIN FEDERAL TRANSACTIONS (APR 1991)

     (a)  The definitions and prohibitions contained in the clause, at FAR
52.203-12, Limitation on payments to influence Certain Federal Transactions,
included in this solicitation, are hereby incorporated by reference in paragraph
(b) of this certification.
     (b)  The offeror, by signing its offer, hereby certifies to the best of his
or her knowledge and belief that on or after December 23, 1989,-
     (1)  No Federal appropriated funds have been paid or will be paid to any
     person for influencing or attempting to influence an officer or employee of
     any agency, a Member of Congress, an officer or employee of Congress, or an
     employee of a Member of Congress on his or her behalf in connection with
     the awarding of any Federal contract, the making of any Federal grant, the
     making of any Federal Loan, the entering into of any cooperative agreement,
     and the extension, continuation, renewal, amendment or modification of any
     Federal contract, grant, loan or cooperative agreement;
     (2)  If any funds other than Federal appropriated funds (including profit
     or fee received under a covered Federal transaction) have been paid, or
     will be paid, to any person for influencing or attempting to influence an
     officer or employee of any agency, a Member of Congress, an officer or
     employee of Congress, or an employee of a Member of Congress on his

<PAGE>

                                       31

     or her behalf in connection with this solicitation, the offeror shall
     complete and submit, with its offer, OMB standard form LLL, Disclosure
     of Lobbying Activities, to the Contracting Officer; and

     (3) He or she will include the language of this certification in all
     subcontract awards at any tier and require that all recipients of
     subcontract awards in excess of $100,000 shall certify and disclose
     accordingly.

     (c) Submission of this certification and disclosure is a prerequisite
for making or entering into this contract imposed by section 1352, title 31,
United States Code. Any person who makes an expenditure prohibited under this
provision or who fails to file or amend the disclosure form to be filed or
amended by this provision, shall be subject to a civil penalty of not less
than $10,000, and not more than $100,000, for each such failure.

                                  (End of Provision)

52.204-3 TAXPAYER IDENTIFICATION. (MAR 1994)

(a) Definitions.

     "Common parent," as used in the solicitation provision, means that
corporate entity that owns or controls an affiliated group of corporations
that files its Federal income tax returns on a consolidated basis, and of
which the Offeror is a member.

     "Corporate status," as used in this solicitation provision, means a
designation as to whether the Offeror is a corporate entity, an
unincorporated entity (e.g., sole proprietorship or partnership), or a
corporation providing medical and health care services.

     "Taxpayer Identification Number (TIN)," as used in this solicitation
provision, means the number required by the IRS to be used by the Offeror in
reporting income tax and other returns.

(b) All Offerors are required to submit the information required in
paragraphs (c) through (e) of this solicitation provision in order to comply
with reporting requirements of 26 U.S.C. 6041, 6041A, and 6050M and
implementing regulations issued by the Internal Revenue Service (IRS). If the
resulting contract is subject to reporting requirements described in FAR
4.903, the failure or refusal by the Offeror to furnish the information may
result in a 31 percent reduction of payments otherwise due under the contract.

            (c) Taxpayer Identification Number (TIN).

             (XX) TIN: 952588754.
             (  ) TIN has been applied for.
             (  ) TIN is not required because:

            (  ) Offeror is a nonresident alien, foreign corporation, or
            foreign partnership that does not have income effectively
            connected with the conduct of a trade or business in the U.S. and
            does not have an office or place of business or a fiscal paying
            agent in the U.S.;

            (  ) Offeror is an agency or instrumentality of a foreign
            government;

            (  ) Offeror is an agency or instrumentality of a Federal, state
            or local government;

            (  ) Other. State basis._________________________.

<PAGE>

                                       32

(d) Corporate Status.

        (  ) Corporation providing medical and health care services, or
        engaged in the billing and collecting of payments for such services;

        (XX) Other corporate entity;
        (  ) Not a corporate entity;
        (  ) Sole proprietorship

        (  ) Partnership

        (  ) Hospital or extended care facility described in 26 CFR 501(c)(3)
        that is exempt from taxation under 26 CFR 501(a).

   (e) Common Parent.

        (XX) Offeror is not owned or controlled by a common parent as defined
        in paragraph (a) of this clause.
        (  ) Name and TIN of common parent:

Name_________________________________________________________________

TIN__________________________________________________________________

                              (End of provision)

52.209-5 CERTIFICATION REGARDING DEBARMENT, SUSPENSION, PROPOSED DEBARMENT AND
         OTHER RESPONSIBILITY MATTERS. (MAY 1989)

     (a)(1) The Offeror certifies, to the best of its knowledge and belief,
that--

         (i) The Offeror and/or any of its Principals--

            (A) Are (  ) are not (XX) presently debarred, suspended, proposed
for debarment, or declared ineligible for the award of contracts by any
Federal agency.

            (B) Have (  ) have not (XX), within a three-year period preceding
this offer, been convicted of or had a civil judgment rendered against them
for: commission of fraud or a criminal offense in connection with obtaining,
attempting to obtain, or performing a public (Federal, state, or local)
contract or subcontract; violation of Federal or state antitrust statutes
relating to the submission of offers; or commission of embezzlement, theft,
forgery, bribery, falsification or destruction of records, making false
statements, or receiving stolen property; and

            (C) Are (  ) are not (XX), presently indicted for, or otherwise
criminal or civilly charged by a governmental entity with, commission of any
of the offenses enumerated in subdivision (a)(1)(i)(B) of this provision.

         (ii) The Offeror has (  ) has not (XX), within a three-year period
preceding this offer, had one or more contracts terminated for default by any
Federal agency.

        (2) "Principals," for the purposes of this certification, means
officers; directors; owners; partners; and, persons having primary management
or supervisory responsibilities within a business entity (e.g., general
manager; plant manager; head of a subsidiary, division, or business segment,
and similar positions).
THIS CERTIFICATION CONCERNS A MATTER WITHIN THE JURISDICTION OF AN AGENCY OF

<PAGE>

                                       33

THE UNITED STATES AND THE MAKING OF A FALSE, FICTITIOUS OR FRAUDULENT
CERTIFICATION MAY RENDER THE MAKER SUBJECT TO PROSECUTION UNDER SECTION 1001,
TITLE 18, UNITED STATES CODE.

     (b) The Offeror shall provide immediate written notice to the
Contracting Officer if, at any time prior to contract award, the Offeror
learns that its certification was erroneous when submitted or has become
erroneous by reason of changed circumstances.

     (c) A certification that any of the items in paragraph (a) of this
provision exists will not necessarily result in withholding of an award under
this solicitation. However, the certification shall be considered in
connection with a determination of the Offeror's responsibility. Failure of
the Offeror to furnish a certification or provide such additional information
as requested by the Contracting Officer may render the Offeror nonresponsible.

     (d) Nothing contained in the foregoing shall be construed to require
establishment of a system of records in order to render, in good faith, the
certification required by paragraph (a) of this provision. The knowledge and
information of an Offeror is not required to exceed that which is normally
possessed by a prudent person in the ordinary course of business dealings.

     (e) The certification in paragraph (a) of this provision is a material
representation of fact upon which reliance was placed when making award. If
it is later determined that the Offeror knowingly rendered an erroneous
certification, in addition to other remedies available to the Government, the
Contracting Officer may terminate the contract resulting from this
solicitation for default.

                                (End of provision)

52.209-7 ORGANIZATIONAL CONFLICTS OF INTEREST CERTIFICATE-MARKETING
         CONSULTANTS. (NOV 1991)

     (a) Definitions.

         (1) Marketing consultant means any independent contractor who
furnishes advise, information, direction, or assistance to an offeror or any
other contractor in support of the preparation or submission of an offer for
a government contract by that offeror. An independent Contractor is not a
marketing consultant when rendering--

            (i) Services excluded in FAR 37.204;

            (ii) Routine engineering and technical service (such as
installation, operation, or maintenance of systems, equipment, software,
components, or facilities;

            (iii) Routine legal, actuarial, auditing, and accounting
services; or

            (iv) Training services.

         (2) Organizational conflict of interest means that because of other
activities or relationships with other persons, a person is unable or
potentially unable to render impartial assistance or advice to the
Government, or the person's objectivity in performing the contract work is or
might be otherwise impaired, or a person has an unfair competitive advantage.

     (b) An individual or firm that employs, retains, or engages
contractually one or more marketing consultants in connection with a
contract, shall submit to the contracting officer, with respect to each
marketing consultant, the certificates described below, if the individual or
firm is notified that it is the apparent successful offeror.

     (c) The certificate must contain the following:

         (1) The name of the agency and the number of the solicitation in
question.

         (2) The name, address, telephone number, and federal taxpayer
identification number of the marketing consultant.

         (3) The name, address and telephone number of a responsible officer
or

<PAGE>

                                       34

employee of the marketing consultant who has personal knowledge of the
marketing consultants involvement in the contract.

         (4) A description of the nature of the services rendered by or to be
rendered by the marketing consultant.

         (5) The name, address, and telephone number of the client or
clients, and the name of a responsible officer or employee of the marketing
consultant who is knowledgeable about the service provided to such client(s),
and a description of the nature of the services rendered to such client(s),
if, based on information provided to the Contractor by the marketing
consultant is rendering or, in the 12* months preceding the date of the
certificate, has rendered services respecting the same subject matter of the
instant solicitation, or directly relating to such subject matter, to the
Government or any other client (including any foreign government or person).

         (6) A statement that the person who signs the certificate for the
prime Contractor has informed the marketing consultant of the existence of
subpart 9.5 and Office of Federal Procurement Policy Letter 89-1.

         (7) The signature, name, title, employer's name, address, and
telephone number of the persons who signed the certificates for both the
apparent successful offeror and the marketing consultant.

     (d) In addition, the apparent successful offeror shall forward to the
Contracting Officer a certificate signed by the marketing consultant that the
marketing consultant has been told of the existence of subpart 9.5 and Office
of Federal Procurement Policy Letter 89-1, and the marketing consultant has
made inquiry, and to the best of the consultant's knowledge and belief, the
consultant has provided no unfair competitive advantage to the prime
Contractor with respect to the services rendered or to be rendered in
connection with the solicitation, or that any unfair competitive advantage
that, to the best of the consultant's knowledge and belief, does or may
exist, has been disclosed to the offeror.

     (e) Failure of the offeror to provide the required certifications may
result in the offeror being determined ineligible for award. Misrepresentation
of any fact may result in the assessment of penalties associated with false
certifications or such other provisions provided for by law or regulation.

                                   (End of provision)

52.215-6 TYPE OF BUSINESS ORGANIZATION. (JUL 1987)

     The offeror or quoter, by checking the applicable box, represents that:

     (a) It operates as /XX/ a corporation incorporated under the laws of the
State of Delaware, /  / an individual, /  / a nonprofit organization, or /  /
a joint venture; or

     (b) If the offeror or quoter is a foreign entity, it operates as
/  / an individual, /  / a partnership, /  / a nonprofit organization,
/  / a joint venture, or /  / a corporation, registered for business in
________________.
(country)

                                  (End of provision)

52.215-11 AUTHORIZED NEGOTIATORS. (APR 1984)

     The offeror or quoter represents that the following persons are
authorized to negotiate on its behalf with the Government in connection with
this request for proposals or quotations:
 ...................................................................

<PAGE>

                              35
  Sherrie R. Manuel, Contracts Representative (703) 758-5642
------------------------------------------------------------------
  Linda M. Frady, Director of Contracts - East (703) 758-5640
------------------------------------------------------------------

------------------------------------------------------------------

                       (End of provision)

52.219-1       SMALL BUSINESS CONCERN REPRESENTATION.     (JAN 1991)

     (a) Representation. The offeror represents and certifies as part of its
offer that it /  / is, /XX/ is not a small business concern and that /  /
all, /XX/ not all end items to be furnished will be manufactured or produced
by a small business concern in the United States, its territories or
possessions, Puerto Rico, or the Trust Territory of the Pacific Islands.
     (b) Definition. Small business concern, as used in this provision, means
a concern, including its affiliates, that is independently owned and operated,
not dominant in the field of operation in which it is bidding on Government
contracts, and qualified as a small business under the size standards in this
solicitation.
     (c) Notice. Under 15 U.S.C. 645(d), any person who misrepresents a
firm's status as a small business concern in paragraph (a) of this clause in
order to obtain a contract to be awarded under the preference programs
established pursuant to sections 8(a), 8(b), 9, or 15 of the Small Business
Act or any other provision of Federal law that specifically references section
8(d) for a definition of program eligibility, shall--
     (1) be punished by imposition of fine, imprisonment, or both;
     (2) be subject to administrative remedies, including suspension and
debarment; and
     (3) be ineligible for participation in programs conducted under the
authority of the Act.

                       (End of provision)

52.219-2       SMALL DISADVANTAGED BUSINESS CONCERN REPRESENTATION   (FEB 1990)

     (a) Representation. The offeror represents that it /  / is, /XX/ is not
a small disadvantaged business concern.
     (b) Definitions.
     Asian-Pacific American, as used in this provision, means a United States
citizen whose origins are in Japan, China, the Philippines, Vietnam, Korea,
Samoa, Guam, the U.S. Trust Territory of the Pacific Islands (Republic of
Palau), the Northern Mariana Islands, Laos, Kampuchea (Cambodia), Taiwan,
Burma, Thailand, Malaysia, Indonesia, Singapore, Brunei, Republic of the
Marshall Islands, or the Federated States of Micronesia.
     Indian tribe, as used in this provision, means any Indian tribe, band,
nation, or other organized group or community of Indians, including any
Alaska Native Corporation as defined in 13 CFR 124.100 which is recognized as
eligible for the special programs and services provided by the U.S. to
Indians because of their status as Indians, or which is recognized as such by
the State in which such tribe, band, nation, group, or community resides.
     Native Americans, as used in this provision, means American Indians,
Eskimos, Aleuts, and native Hawaiians.
     Native Hawaiian Organizations, as used in this provision, means any
community service organization serving Native Hawaiians in, and charted as a
not-for-profit organization by, the State of Hawaii, which is controlled by
Native Hawaiians, and whose business activities will principally benefit such

<PAGE>

                                       36
Native Hawaiians.
     Small business concern, as used in this provision, means a concern,
including its affiliates, that is independently owned and operated, not
dominant in the field of operation in which it is bidding on Government
contracts, and qualified as a small business under the criteria and size
standards in 13 CFR 121.
     Small disadvantaged business concern, as used in this provision, means a
small business concern that (a) is at least 51 percent unconditionally owned
by one or more individuals who are both socially and economically
disadvantaged, or a publicly owned business having at least 51 percent of
its stock unconditionally owned by one or more socially and economically
disadvantaged individuals and (b) has its management and daily business
controlled by one or more such individuals. This term also means a small
business concern that is at least 51 percent unconditionally owned by an
economically disadvantaged Indian tribe or Native Hawaiian Organization, or a
publicly owned business having at least 51 percent of its stock
unconditionally owned by one of these entities which has its management and
daily business controlled by members of an economically disadvantaged Indian
tribe or Native Hawaiian Organization, and which meets the requirements of 13
CFR 124.
     Subcontinent Asian American, as used in this provision, means a United
States citizen whose origins are in India, Pakistan, Bangladesh, Sri Lanka,
Bhutan, or Nepal.
     (c) Qualified groups. The offeror shall presume that socially and
economically disadvantaged individuals include Black Americans, Hispanic
Americans, Native Americans, Asian-Pacific Americans, Subcontinent Asian
Americans, and other individuals found to be qualified by SEA under 13 CFR
124. The offeror shall presume that socially and economically disadvantaged
entities also include Indian tribes and Native Hawaiian Organizations.

                       (End of provision)

52.219-3       WOMEN-OWNED SMALL BUSINESS REPRESENTATION.      (APR 1984)

     (a) Representation. The offeror represents that it /  / is, /XX/ is not
a women-owned small business concern.
     (b) Definitions.
     "Small business concern," as used in this provision, means a concern,
including its affiliates, that is independently owned and operated, not
dominant in the field of operation in which it is bidding on Government
contracts, and qualified as a small business under the criteria and size
standards in 13 CFR 121.
     "Women-owned," as used in this provision, means a small business that is
at least 51 percent owned by a woman or women who are U.S. citizens and who
also control and operate the business.

                       (End of provision)

52.219-22      SIC CODE AND SMALL BUSINESS SIZE STANDARD.      (JAN 1991)

     (a) The standard industrial classification (SIC) code for this
acquisition is 8999.
     (b)(1) The small business size standard is $3.5 million.
     (2) The small business size standard for a concern which submits an
offer in its own name, other than on a construction or service contract, but
which proposes to furnish a product which it did not itself manufacture, is
500 employees.

                       (End of provision)

<PAGE>

                                     37

52.222-19      WALSH-HEALEY PUBLIC CONTRACTS ACT REPRESENTATION. (APR 1984)

       N/A
     The offeror represents as a part of this offer that the offeror is /  /
or is not /  / a regular dealer in, or is /  / or is not /  / a manufacturer
of, the supplies offered.

                                 (End of provision)

52.222-22      PREVIOUS CONTRACTS AND COMPLIANCE REPORTS.    (APR 1984)

     The offeror represents that--
     (a) It /XX/ has, /  / has not participated in a previous contract or
subcontract subject either to the Equal Opportunity clause of this
solicitation, the clause originally contained in Section 310 of Executive
Order No. 10925, or the clause contained in Section 201 of Executive Order
No. 11114;
     (b) It /XX/ has, /  / has not, filed all required compliance reports;
and
     (c) Representations indicating submission of required compliance
reports, signed by proposed subcontractors, will be obtained before
subcontract awards.

                                 (End of provision)

52.222-25      AFFIRMATIVE ACTION COMPLIANCE.       (APR 1984)

     The offeror represents that (a) it /XX/ has developed and has on file, /
 / has not developed and does not have on file, at each establishment,
affirmative action programs required by the rules and regulations of the
Secretary of Labor (41 CFR 60-1 and 60-2), or (b) it /  / has not previously
had contracts subject to the written affirmative action programs requirement
of the rules and regulations of the Secretary of Labor.

                                 (End of provision)

52.223-1       CLEAN AIR AND WATER CERTIFICATION.       (APR 1984)

The Offeror certifies that--
     (a) Any facility to be used in the performance of this proposed contract
is /  /, is not /XX/ listed on the Environmental Protection Agency (EPA) List
of Violating Facilities;
     (b) The Offeror will immediately notify the Contracting Officer, before
award, of the receipt of any communication from the Administrator, or a
designee, of the EPA, indicating that any facility that the Offeror proposes
to use for the performance of the contract is under consideration to be
listed on the EPA List of Violating Facilities; and
     (c) The Offeror will include a certification substantially the same as
this certification, including this paragraph (c), in every nonexempt
subcontract.

                                 (End of provision)

<PAGE>

                                      38

                              PART IV - SECTION L
                 INSTRUCTIONS, CONDITIONS AND NOTICES TO OFFEROR

52.252-1       SOLICITATION PROVISIONS INCORPORATED BY REFERENCE.    (JUN 1988)

     This solicitation incorporates one or more solicitation provisions by
reference, with the same force and effect as if they were given in full text.
Upon request, the Contracting Officer will make their full text available.

                                 (End of provision)

                I.  FEDERAL ACQUISITION REGULATION (48 CFR CHAPTER 1)
                                SOLICITATION PROVISIONS

52.215-5             SOLICITATION DEFINITIONS. (JUL 1987)
52.215-7             UNNECESSARILY ELABORATE PROPOSALS OR QUOTATIONS. (APR 1984)
52.215-8             AMENDMENTS TO SOLICITATIONS. (DEC 1989)
52.215-9             SUBMISSION OF OFFERS. (DEC 1989)
52.215-10            LATE SUBMISSIONS, MODIFICATIONS, AND WITHDRAWALS OF
                     PROPOSALS. (DEC 1989)
52.215-12            RESTRICTION ON DISCLOSURE AND USE OF DATA. (APR 1984)
52.215-13            PREPARATION OF OFFERS. (APR 1984)
52.215-14            EXPLANATION TO PROSPECTIVE OFFERORS. (APR 1984)
52.215-15            FAILURE TO SUBMIT OFFER. (APR 1984)
52.215-16            CONTRACT AWARD. (JUL 1990)
52.222-46            EVALUATION OF COMPENSATION FOR PROFESSIONAL EMPLOYEES.
                     (FEB 1993)

52.216-1       TYPE OF CONTRACT.       (APR 1984)

     The Government contemplates award of a requirement contract resulting
from this solicitation. Delivery/Task Orders issued under the contract will
bee firm-fixed price.

                                 (End of provision)

52.233-2       SERVICE OF PROTEST.     (NOV 1988)

      (a) Protest, as defined in section 33.101 of the Federal Acquisition
Regulation, that are filed directly with an agency, and copies of any
protests that are filed with the General Accounting Office (GAO) or the
General Services Administration Board of Contract Appeals (GSBCA), shall be
served on the Contracting Officer (addressed as follows) by obtaining written
and dated acknowledgment of receipt from ....

     Federal Aviation Administration
     Attn: Margorie M. Brooks, ASO-55N
     P.O. Box 20636
     Atlanta, GA  30320

     (b) The copy of any protest shall be received in the office designated
above on the same day a protest is filed with the GSBCA or within one day of
filing a protest with the GAO.

<PAGE>

                                       39

                                 (End of provision)

1252.209-70  DISCLOSURE OF CONFLICTS OF INTEREST  (OCT 1994)

     It is the Department of Transportation's (DOT) policy to award contracts
to only those offerors whose objectivity is not impaired because of any
related past, present, or planned interest, financial or otherwise, in
organizations regulated by DOT or in organizations whose interests may be
substantially affected by Departmental activities. Based on this policy:

     (a)   The offeror shall provide a statement in its proposal which
describes in a concise manner all past, present or planned organizational,
financial, contractual or other interest(s) with an organization regulated by
DOT, or with an organization whose interests may be substantially affected by
Departmental activities, and which is related to the work under this
solicitation. The interest(s) described shall include those of the proposer,
its affiliates, proposed consultants, proposed subcontractors and key
personnel of any of the above. Past interest shall be limited to within one
year of the date of the offeror's technical proposal. Key personnel shall
include any person owning more than 20% interest in the offeror, and the
offeror's corporate officers, its senior managers and any employee who is
responsible for making a decision or taking an action on this contract where
the decision or action can have an economic or other impact on the interests
of a regulated or affected organization.

     (b)   The offeror shall describe in detail why it believes, in light of
the interest(s) identified in (a) above, that performance of the proposed
contract can be accomplished in an impartial and objective manner.

     (c)   In the absence of any relevant interest identified in (a) above,
the offeror shall submit in its proposal a statement certifying that to its
best knowledge and belief no affiliation exists relevant to possible
conflicts of interest. The offeror must obtain the same information from
potential subcontractors prior to award of a subcontract.

     (d)   The Contracting Officer will review the statement submitted and
may require additional relevant information from the offeror. All such
information, and any other relevant information known to DOT, will be used to
determine whether an award to the offeror may create a conflict of interest.
If any such conflict of interest is found to exist, the Contracting Officer
may (1) disqualify the offeror, or (2) determine that it is otherwise in the
best interest of the United States to contract with the offeror and include
appropriate provisions to mitigate or avoid such conflict in the contract
awarded.

     (e)   The refusal to provide the disclosure or representation, or any
additional information required, may result in disqualification of the
offeror for award. If nondisclosure or misrepresentation is discovered after
award, the resulting contract may be terminated. If after award the
Contractor discovers a conflict of interest with respect to the contract
awarded as a result of this solicitation, which could not reasonably have
been known prior to award, an immediate and full disclosure shall be made in
writing to the Contracting Officer. The disclosure shall include a full
description of the conflict, a description of the action the contractor has
taken, or proposes to take, to avoid or mitigate such conflict. The
Contracting Officer may, however, terminate the contract for convenience if
he or she deems that termination is in the best interest of the Government.

                                 (End of provision)
<PAGE>

                                       40

SO-L-1  PRE-AWARD SURVEY

     The Government reserves the right to conduct a pre-award survey on any
offeror or on any offeror's proposed subcontractor. If a pre-award survey is
conducted, it does not mean that an offeror has been selected for award.

SO-L-2  PRE-PROPOSAL CONFERENCE

     A pre-proposal conference is not planned.

SO-L-3  PROPOSAL PREPARATION--INSTRUCTIONS

     Proposals shall be submitted in accordance with the instructions herein.
Non-conformance with the specified content may be cause for not accepting the
proposal.

     a.   GENERAL REQUIREMENTS.  The material presented in the offeror's
proposal must address, in a clear and concise manner, all the information
requested in the paragraphs below and that information necessary for the
Government to evaluate the offeror's proposal in accordance with the
evaluation criteria contained in Section M. Comprehensive responses are
necessary to enable the Government to evaluate the offeror's understanding
and capability to accomplish the contract requirements. The offeror shall
provide sufficient detail to substantiate the validity of all stated claims.

     The Technical Proposal must be sufficiently detailed to describe the
offeror's capabilities as set forth in Paragraph SO-L-5. The Technical
Proposal must be specific, detailed and complete to clearly demonstrate the
offeror's understanding of the requirements involved in providing the
services as described in the Statement of Work. Rephrasing or restating the
Government's requirements is insufficient and will result in the proposal
being considered non-responsive. The Technical Proposal shall not include any
cost information.

SO-L-4  PROPOSAL PRESENTATION

     a.  PACKAGING AND LABELING.  The Technical Proposal and the Cost
Proposal may be submitted in the same envelope/container; however, the cost
proposal must be in a sealed envelope and marked as instructed herein. Each
copy of each proposal shall be marked with the solicitation number and the
offeror's name.

     b.  PAGE SIZE, TYPING, AND SPACING.  Page size shall be 8 1/2 by 11
inches and shall be printed on both sides using double spacing. When both
sides of a sheet of paper contain material, it will be counted as two (2)
pages. One or two columns of text information per page is acceptable. Each
copy of the Technical Proposal shall contain a table of abbreviations (if
applicable) with their explanations.

     c.  FOLD-OUTS.  Legible charts and graphs may be used to depict
organization structures, system descriptions and layouts, implementation
schedules, plans, etc. These charts and graphs shall be uncomplicated to
preserve clarity. Fold-out pages shall fold entirely within the volume.
Networks, however, shall be folded to an approximate 8 1/2 by 11 inch page
size and inserted into pockets attached to the volume. Networks shall not
exceed 4 by 8 feet in size.

<PAGE>

                                          41

     d.   INDEXING.  Each copy of the Technical Proposal shall contain a Table
of Contents which identifies major paragraphs by number and title as well as by
page number.

     e.   NUMBER OF COPIES/PAGE LIMITS.

               Technical Proposal - 200 pages, 4 copies
               Cost Proposal - no page limit, 4 copies

SO-L-5         ORGANIZATION OF PROPOSALS

     The proposal shall consist of a Technical Proposal and a Cost Proposal as
described herein.

SO-L-5.1       TECHNICAL PROPOSAL FORMAT AND CONTENT

     GENERAL. To permit a thorough and effective evaluation, the Technical
Proposal shall be precise and complete.  Technical Proposals shall also follow
the required format as specified herein.  The offeror must discuss each
evaluation criterion.  The Statement of Work (SOW) must be fully addressed to
reflect the offeror's understanding of the solicitation requirements and the
work to be undertaken.  The proposal must be cross-referenced to specific
paragraph numbers of the Statement of Work.  The Technical Proposal shall
clearly and fully demonstrate the prospective offeror's understanding of the
scope of the requirements and that they possess the capabilities to perform
under this requirements contract.  OFFERORS ARE CAUTIONED TO OMIT ALL COST
INFORMATION FROM THE TECHNICAL PROPOSAL.

     The offeror's proposal is presumed to represent the best efforts of the
offeror.  Any significant omissions or inconsistencies raise a fundamental issue
of the offeror's understanding of the requirements or ability to perform the
contract and may result in a determination of technical unacceptability and
disqualification.  If the Government holds written or oral discussions, offerors
in the competitive range may be required to submit updates and supplements to
their initial proposals.

SO-L-5.1.1     RELEVANT EXPERIENCE (CRITERION 1)

     Provide a narrative addressing relevant prior and current experience
related to the activities contained in the Statement of Work.  Include
verifiable evidence demonstrating the offeror's record for meeting schedule and
completion dates in providing similar services under other contracts.

     If subcontractors are contemplated in the performance of the contract,
address relevant prior and current experience of the proposed subcontractors.
Include letters of intent from any proposed subcontractors named in the
proposal, indicating their intention to perform work under any awarded contract.

     The Government may send questionnaires to selected contracting officers and
technical officers as a further means of evaluating experience on relevant
previous contracts.

SO-L-5.1.2     KEY PERSONNEL (CRITERION 2)

     Offerors shall provide details demonstrating the quality and pertinence

<PAGE>

                                          42
of the experience and qualifications of key staff members proposed to perform
work under the contract.  Offerors must identify whether these individuals, and
their particular expertise, are proposed to be provided by a subcontractor or by
the prime Contractor.

     The Government considers the position of Project Manager to be Key
Personnel.  Offerors must identify the individual proposed as Project Manager,
state whether or not he/she is currently employed by the offeror, and provide a
detailed description of her/his qualifications, including relevant expertise,
experience, and educational background.

     Offerors should provide a narrative describing the proposed participation
of corporate officers/leaders in the performance of tasks under this contract.

SO-L-5.1.3     SPECIFIC TECHNICAL KNOWLEDGE AND ABILITIES (CRITERION 3)

     Offerors shall provide details describing the extent of their knowledge and
understanding of the Federal Response Plan, and the problems faced by local,
State, and Federal responders resulting from a major disaster.  State how
knowledge and understanding was obtained.  Offerors may reference experience
described in Criterion 1.  Provide evidence of experience and ability in
producing clear, concise, and technically accurate written materials and
graphics.

SO-L-5.2       COST PROPOSAL FORMAT AND CONTENT

     The Cost Proposal shall be submitted in a separate sealed envelope, clearly
marked "COST PROPOSAL".  The Cost Proposal will consist of the submission of a
listing of hourly rates for disciplines/labor categories which might be used for
tasks under this contract, overhead rates (include all which might be charged on
a task), G&A rates, profit rates, etc.  Include rates which would be charged on
work subcontracted, if applicable.

<PAGE>

                                       43

                            PART IV - SECTION M
                        EVALUATION FACTORS FOR AWARD

52.252-1 SOLICITATION PROVISIONS INCORPORATED BY REFERENCE. (JUN 1988)

     This solicitation incorporates one or more solicitation provisions by
reference, with the same force and effect as if they were given in full text.
Upon request, the Contracting Officer will make their full text available.

                              (End of provision)

             I. FEDERAL ACQUISITION REGULATION (48 CFR CHAPTER 1)
                       SOLICITATION PROVISIONS

52.232-15 PROGRESS PAYMENTS NOT INCLUDED. (APR 1984)

SO-M-1 PREAWARD SURVEY

     In accordance with FAR Subpart 9.1, the Government may conduct a
Preaward Survey at its discretion. The factors listed therein may be
investigated during the survey, and any findings shall be considered in
making a determination of responsibility.

SO-M-2 SUBCONTRACTOR PREAWARD SURVEY

     The Government reserves the right to conduct a similar survey on any
subcontractors.

SO-M-3 BASIS FOR AWARD

     The Government will evaluate proposals and award a contract to the
responsible offeror who proposes the most advantageous offer to the
Government in accordance with the Request for Proposals (RFP). Both the
Technical and Cost Proposals must be determined as acceptable by the
Government in order to be considered eligible for award.

     AWARD MAY BE MADE ON THE BASIS OF THE ORIGINAL PROPOSAL(S), AS
SUBMITTED, WITHOUT WRITTEN OR ORAL DISCUSSION.

     The Government reserves the right to reject any or all offers, and to
waive minor irregularities and discrepancies in offers received, and to make
an award based on the initial offers submitted without negotiating and
without soliciting best and final offers.

SO-M-4 OVERALL RELATIVE IMPORTANCE OF EVALUATION CRITERIA

     The Technical Proposal is of significantly greater importance than the
Cost Proposal. It will be evaluated for adequacy and compliance with the
solicitation requirements as highlighted under Section SO-M-5. Only the
Technical Proposal will be numerically scored.

     The Cost Proposal will be evaluated for reasonableness and overall risk
to the Government pursuant to SO-M-6, and for adequacy and compliance with the

<PAGE>

                                       44

solicitation requirements. The Cost Proposal will not be scored. As the
differences in technical scores decrease, the cost becomes more important.
Therefore, the highest scored Technical Proposal, or the lowest priced Cost
Proposal, may not necessarily result in an award.

SO-M-5 TECHNICAL PROPOSAL EVALUATION CRITERIA

     a. Proposals will be evaluated to access the degree of compliance and
completeness, and the degree of capability of the offeror to accomplish the
requirements of the Statement of Work.

     b. Technical aspects of the proposal will be evaluated in accordance
with the following criteria. The criteria are listed in descending order of
importance. Within Criterion two and three, the subcriteria are listed in
descending order of importance.

     c. Technical Criteria.

                    CRITERION 1 - RELEVANT EXPERIENCE
                         (Reference SO-L-5.1.1)

The offeror's proposal will be evaluated for the degree to which it
demonstrates possession of the experience, knowledge and ability to perform
the activities set forth in the Statement of Work.

The Government will evaluate the offeror's and any proposed subcontractor's
recent relevant corporate experience and past performance in contracts of a
similar nature to assess capability of performance on this contract. The
Government will be the sole determinant of what qualifies as "relevant" in
reference to requirements set forth in the solicitation.

Offerors are advised that the Government will not necessarily look at the
total number of relevant examples provided by the offeror, but will carefully
consider the nature of the work performed, the extent of complexity and
overall performance. In addition to the examples provided by the offerors,
the Government reserves the right to consider other contracts involving
relevant experience performed by the offeror but not cited within their
proposal.

As noted above, evaluation will be based on the extent and depth of the
experience and past performance and the offeror's demonstrated ability to
perform same or similar services as described in the Statement of Work. The
extent and depth will be measured by the number, complexity, variety, and
success of recent corporate projects.

The Government reserves the right to verify contractual data submitted by the
offeror.

                           CRITERION 2 - KEY PERSONNEL
                             (Reference SO-L-5.1.2)

The offeror's proposal will be evaluated for the degree to which it
demonstrates:

     1. Quality and relevance of expertise and experience of the key staff
proposed for performance of activities set forth in the Statement of Work.

<PAGE>
                                       45

     2. Relevant expertise and experience of the proposed Project Manager
related to activities set forth in the Statement of Work.

     3. Participation of corporate leadership in tasks under this contract.

            CRITERION 3 - SPECIFIC TECHNICAL KNOWLEDGE AND ABILITIES
                             (Reference SO-L-5.1.3)

The offeror's proposal will be evaluated for the degree to which it
demonstrates:

     1. Knowledge and understanding of the Federal Response Plan.

     2. Knowledge and understanding of problems faced by local, State, and
Federal responders resulting from a major disaster.

     3. Ability to produce clear, concise, and technically accurate written
materials and graphics.

SO-M-6 COST PROPOSAL (Reference SO-L-5.2)

     The Cost Proposal will be evaluated for reasonableness and risk to the
Government. It will be used to determine the offeror's understanding of the
work and ability to perform the tasks under the contract. The Cost Proposal
will be evaluated but not numerically scored.

<PAGE>

                                                                   ATTACHMENT 1
                                                                    PAGE 1 OF 3

                                STATEMENT OF WORK

1. SCOPE

This contract provides for the provision of technical services in support of the
Federal Aviation Administration's (FAA) Emergency Operations Program. The
technical services may include internal FAA exercise development, support for
FAA participation in external agency exercises and the development or revision
of FAA plans and standard operating procedures. The exercise scenarios shall
include both National Security emergencies and catastrophic natural and
technological disasters. The technical services shall support both FAA
Headquarters and regions.

This is a three year contract with tasks to be assigned pending funding
availability.

2. BACKGROUND

The FAA Emergency Operations Program is directed at identifying essential FAA
functions, developing plans for performing these functions, developing the
capability to execute the plans, and routinely exercising the plans. The FAA
Emergency Operations Plans, FAA Order 1900.1E, provides for an
all-hazards/all-risk approach to emergency situations, including national
security emergencies, natural disasters, technological emergencies, or other
emergency situations that seriously degrade or threaten the FAA mission.
Order 1900.1.E. provides for the protection of FAA personnel and facilities
in order to provide for continued effective operation of the National
Airspace System (NAS), the continued maintenance of essential functions, the
recovery and reconstitution of the NAS should it be damaged or otherwise
disabled, and support to the Department of Transportation The Manager,
Emergency Operations Staff, serving as the FAA emergency coordinator, is the
sponsor for this project.

3. SECURITY REQUIREMENTS

     3.1 General. The contractor's personnel and facilities shall meet the FAA
security requirements based on the terms and conditions of the contract. All
contractor personnel working on this contract shall have a Secret clearance.

     3.2 Protection of National Security Information. Performance of this
contract shall require access to classified National Security Information by the
Contractor and its employees at some FAA facilities. Contract performance
involving classified information is restricted to those facilities and personnel
designated in writing by the Contracting Officer after coordination with the
Civil Aviation Security Division (ACS-300).

The contractor shall safeguard all classified material and shall provide and
maintain a system of security controls within its organization in accordance
with the requirements of: (1) the Department of Defense Security Agreement (DD
Form 441), (2) the Industrial Security Manual (ISM)(attachment to DD Form 441),
and (3) any future revisions or changes to the ISM.

<PAGE>

                                                                   ATTACHMENT 1
                                                                    PAGE 2 OF 3

The Contracting Officer shall furnish complete classification and security
guidance for the Contractor by issuing an individual "DOD Contract Security
Classification Specification" (DD Form 254) for each FAA facility at which
access to classified information shall be required for contract performance.

4. ACTIVITY REPORTS

The contractor shall discuss the status of the project weekly with the
Contracting Officer's Technical Representative (COTR).  These discussions will
stress the status of the work. In addition, a monthly letter report will be
submitted. This monthly report will describe the progress of each task and a
breakdown of expenditures.

5. TASKS

     5.1 General. Actual tasking assignments shall be designated by the
Contracting Officer when technical support is needed and there is sufficient
funding available to provide for the support. The designated support shall be in
the areas listed below.

     5.2 Internal FAA Exercise Support. Develop and provide technical services
in support of Internal FAA exercises. The contractor shall provide exercise
support to the FAA for the development and execution of internal FAA exercises.
Exercise support consists of scenario development, message preparation,
controller services, logistics support, master scenario events list preparation,
accumulation and presentation of critique comments, statements of lessons
learned, the preparation of pre-exercise participant information hand-outs and
the preparation of "school solution" papers for the prescribed exercises. The
scenarios will consist of simulations of national security emergencies,
catastrophic natural and technological disasters, and command and control
exercises. The exercises will be developed for regional only play, headquarters
only play and combined region and headquarters exercises. The exercises will
consist of a mix of table-top and full scale interactive exercises between and
among regions and headquarters.

     5.3. External FAA Exercise Support. Develop and provide technical services
in support of FAA participation in exercises involving external agencies. The
contractor shall provide exercise support to the FAA in the development and
execution of FAA headquarters and regional participation in major joint
civil-military exercises and other external exercises which are initiated by FAA
or require FAA participation. The exercise support will include all the elements
contained in Task I.

     5.4 Other Technical Services. Provide technical services in support of
Headquarters and regional plan and standard operating procedures (SOP's)
development. The contractor shall provide for the development or revision of
headquarters and regional emergency plans and associated appendices and standard
operating procedures for selected aspects of FAA headquarters and regional
operations.

<PAGE>

                                                                   ATTACHMENT 1
                                                                    PAGE 3 OF 3

6. FIRST YEAR TASKS AND DELIVERABLES (Subject to further requirements
determination and the availability of funding)

     6.1 The contractor shall provide five-regional table-top exercises based on
a catastrophic technological disaster or similar scenario. The Contracting
Officer's Technical Representative (COTR) shall designate the type of event
prior to initiation of the work. All outside agencies shall be simulated by a
response cell. Exercise development and presentation requirements are contained
in paragraph 5.2.

     6.2 A headquarters exercise involving a catastrophic natural disaster.  The
COTR shall designate the type of event prior to initiation of the work. All
outside agencies shall be simulated by a response cell.

     6.3 A multi-regional/headquarters exercise involving a catastrophic natural
disaster. The COTR shall designate the type of event prior to inition of the
work. All outside agencies shall be simulated through a response cell.

7. PLACE OF DELIVERY

The tasks shall be delivered to the following address:

         Federal Aviation Administration
         Manager, Emergency Operations Staff, ADA-20
         Room 1015E
         800 Independence Ave., S.W.
         Washington, D.C. 20591

8. OTHER

     8.1 No equipment will be provided in support of this project. However, the
FAA will provide the contractor with appropriate reference documents.

     8.2 Contractor Furnished Items. The contractor shall furnish all facilities
and equipment necessary to perform this project.

9. OTHER CONSIDERATIONS.

     9.1 Contractor employees assigned to the project shall possess a SECRET
security clearance.  The contractor shall maintain a facility approved for the
use and storage of SECRET material.

     9.2 Travel costs associated with project review and exercise participation
are the contractor's responsibility.

<PAGE>

[LOGO] TITAN

18 January 1995

DOT/Federal Aviation Administration
Southern Region, ASO-55N
1701 Columbia Avenue
College Park, Georgia 30337

Attention: Marjorie M. Brooks

Subject:   Titan Proposal No. P217

Reference: Solicitation No. DTFA06-94-R-30067/Amendment No. 0001 dated
           02 December 1994

Dear Ms. Brooks:

The Titan Corporation, Titan Systems Division is pleased to submit the subject
proposal in response to the referenced solicitation. Our proposal is submitted
on a Firm Fixed Price basis and shall remain valid for a period of sixty (60)
days from submission.

Should you have any questions please contact Sherrie Manuel at (703) 758-5642 or
the undersigned at (703) 758-5640.

Sincerely,

Titan Systems Division

/s/ Linda M. Frady

Linda M. Frady
Director of Contracts - East

SRM/ca

--------------------------------------------------------------------------------
1900 Campus Commons Drive, Reston, Virginia 22091                 (703) 758-5600

<PAGE>

                                                                    [LOGO] TITAN

Titan Proposal: P217
In Response To: DTFA06-94-R-30067
and Amendment No 0001
Dated December 2, 1994

                               TECHNICAL SERVICES
                                  IN SUPPORT OF
                      THE FEDERAL AVIATION ADMINISTRATION'S
                          EMERGENCY OPERATIONS PROGRAM

                                    VOLUME I

                               TECHNICAL PROPOSAL

                                JANUARY 18, 1995

                                                              Copy 6 of 8 Copies

Submitted to:                                  Submitted by:
      DOT/Federal Aviation Administration            Titan Corporation
      Southern Region, ASO-55N                       Titan Systems Group
      1701 Columbia Avenue                           1900 Campus Commons Drive
      College Park, Georgia 30337-2714               Reston, Virginia 22091-1535

================================================================================
THIS PROPOSAL OR QUOTATION INCLUDES DATA THAT SHALL NOT BE DISCLOSED OUTSIDE THE
GOVERNMENT AND SHALL NOT BE DUPLICATED, USED OR DISCLOSED IN WHOLE OR PART FOR
ANY PURPOSE OTHER THAN TO EVALUATE THIS PROPOSAL OR QUOTATION. IF, HOWEVER, A
CONTRACT IS AWARDED TO THIS OFFEROR AS A RESULT OF OR IN CONNECTION WITH THE
SUBMISSION OF THIS DATA, THE GOVERNMENT SHALL HAVE THE RIGHT TO DUPLICATE, USE
OR DISCLOSE THE DATA TO THE EXTENT PROVIDED IN THE RESULTING CONTRACT. THIS
RESTRICTION DOES NOT LIMIT THE GOVERNMENT'S RIGHT TO USE INFORMATION CONTAINED
IN THE DATA IF IT IS OBTAINED FROM ANOTHER SOURCE WITHOUT RESTRICTION. THE DATA
SUBJECT TO THIS RESTRICTION IS CONTAINED IN ALL PAGES OF OUR PROPOSAL.
================================================================================
<PAGE>

                                                                    [LOGO] TITAN

                                TABLE OF CONTENTS

Section                                                                     Page

EXECUTIVE SUMMARY ......................................................... ES-1

1.0  INTRODUCTION .........................................................  1-1
     1.1  ORGANIZATION OF THE PROPOSAL ....................................  1-2
     1.2  COMPLIANCE MATRIX ...............................................  1-3

2.0  TECHNICAL APPROACH ...................................................  2-1
     2.1  UNDERSTANDING THE REQUIREMENT ...................................  2-4
          2.1.1  Background ...............................................  2-4
          2.1.2  FAA Emergency Operations Program and the Emergency
                 Operations Plan ..........................................  2-6
          2.1.3  The FAA and the Federal Response Plan (FRP) .............. 2-13
     2.2  UNDERSTANDING THE STATEMENT OF WORK ............................. 2-20
     2.3  UNDERSTANDING THE EVALUATION CRITERIA ........................... 2-25
          2.3.1  Relevant Experience (Criterion 1) ........................ 2-25
          2.3.2  Key Personnel (Criterion 2) .............................. 2-29
          2.3.3  Specific Technical Knowledge and Abilities (Criterion 3) . 2-30
     2.4  EXERCISE SUPPORT REQUIREMENTS ................................... 2-34
          2.4.1  General .................................................. 2-34
          2.4.2  Exercise Design .......................................... 2-34
          2.4.3  Exercise Preparation ..................................... 2-37
          2.4.4  Exercise Conduct ......................................... 2-46
          2.4.5  Post-Exercise Activities ................................. 2-46
     2.5  TASK I - SUPPORT FOR INTERNAL FAA EXERCISES ..................... 2-49
          2.5.1  Understanding ............................................ 2-50
          2.5.2  Approach ................................................. 2-69
          2.5.3  Conclusion ............................................... 2-82
     2.6  TASK II - SUPPORT FOR EXTERNAL FAA EXERCISES .................... 2-83
          2.6.1  Understanding ............................................ 2-84
          2.6.2  Approach ................................................. 2-87
          2.6.3  Conclusion ............................................... 2-89
     2.7  TASK III - SUPPORT TO OTHER TECHNICAL SERVICES .................. 2-90
          2.7.1  Understanding ............................................ 2-91
          2.7.2  Approach ................................................. 2-94
          2.7.3  Conclusion ............................................... 2-99

3.0  PROJECT MANAGEMENT PLAN ..............................................  3-1
     3.1  PROFESSIONAL QUALIFICATIONS .....................................  3-4
          3.1.1  Project Organization .....................................  3-5
          3.1.2  Skill Requirements .......................................  3-6
          3.1.3  Personnel Selection and Qualifications ...................  3-7

                                       i
<PAGE>

          3.1.4  Key Personnel and Support Staff ..........................  3-7
          3.1.5  Corporate Leadership ..................................... 3-13
     3.2  RESUMES OF THE TITAN TEAM ....................................... 3-14
     3.3  TASK ORDER MANAGEMENT ........................................... 3-43
     3.4  PROJECT MANAGEMENT CONTROLS ..................................... 3-45
          3.4.1  General .................................................. 3-45
          3.4.2  Project Monitoring ....................................... 3-46
          3.4.3  Cost Management .......................................... 3-47
          3.4.4  Activity Reporting ....................................... 3-48
          3.4.5  Quality Assurance Measures ............................... 3-50
          3.4.6  Corrective Actions ....................................... 3-51

4.0  PREVIOUS RELATED EXPERIENCE ..........................................  4-1
     4.1  DIRECT RELATIONSHIP TO SOW ......................................  4-3
          4.1.1  Task I - Support Internal FAA Exercises ..................  4-3
          4.1.2  Task II - Support FAA Participation In Exercises Involving
                 External Agencies ......................................... 4-4
          4.1.3  Task III - Other Technical Services ....................... 4-5
     4.2  TITAN'S RELEVANT CORPORATE EXPERIENCE ............................ 4-6
          4.2.1  FAA NSEP Program .......................................... 4-6
          4.2.2  FEMA Exercise Support ..................................... 4-8
          4.2.3  FEMA Team Development and Operations Support ..............4-10
          4.2.4  FEMA Operational Planning Support and Technical Assistance 4-11
          4.2.5  Chemical Stockpile Emergency Preparedness Program (CSEPP)  4-12
          4.2.6  National Communications Systems Operational Test and
                 Evaluation ................................................4-13
          4.2.7  FEMA Evaluation and Assessment Program Development
                 and Operation .............................................4-15
          4.2.8  JCS Exercise Support ......................................4-17
          4.2.9  FEMA Operations Support SETA ..............................4-18

5.0  CORPORATE FACILITIES AND RESOURCES .................................... 5-1
     5.1  TITAN SYSTEMS GROUP .............................................. 5-2
     5.2  COMPANY RESOURCES ................................................ 5-5
     5.3  FACILITIES ....................................................... 5-7
     5.4  SECURITY ......................................................... 5-9
          5.4.1   Titan Security Procedures ................................5-10
          5.4.2   Handling of Classified Information .......................5-11

    ANNEX A - TABLE OF ABBREVIATIONS ....................................... A-1

    ANNEX B - COMPLIANCE MATRIX ............................................ B-1

                                       ii
<PAGE>

                                                                    [LOGO] TITAN

                                LIST OF EXHIBITS

EXHIBIT                                                                     PAGE

1.1-1   Proposal Organization .............................................. 1-2

2.0-1   Titan Commitment ................................................... 2-2
2.0-2   Organization Within Section 2.0 .................................... 2-3
2.1-1   FAA Regional Exercises (1992-1994) ................................. 2-5
2.1-2   FAA's Emergency Operations Program Development Cycle ............... 2-7
2.1-3   FAA Crisis Response System (CRS) ...................................2-10
2.1-4   DOT and FAA Support to ESFs ........................................2-15
2.1-5   Federal Response Structure .........................................2-16
2.1-6   FAA Federal Response Plan Information Flow .........................2-17
2.2-1   Task Interrelationships ............................................2-20
2.3-1   Examples of Damage Response Subjects/Problems ......................2-32
2.4-1   Typical Exercise Cycle .............................................2-35
2.4-2   Exercise Design Approach ...........................................2-36
2.4-3   Notional Task Assignment and Planning Schedule .....................2-37
2.4-4   Key Events .........................................................2-38
2.4-5   Notional EXPLAN Outline ............................................2-41
2.4-6   After-Action Critique Outline ......................................2-48
2.5-1   Task I Overview ....................................................2-49
2.5-2   Task I - Table-Top to Interactive Full-Scale Exercises .............2-51
2.5-3   Task I Elements ....................................................2-52
2.5-4   Actual Implementer Messages ........................................2-55
2.5-5   Exercise Control Functions .........................................2-56
2.5-6   Logistics Support Factors ..........................................2-59
2.5-7   Examples of Logistics Support Details ..............................2-59
2.5-8   Task I Elements ....................................................2-68
2.5-9   Titan's Nine-Step Exercise Design Template .........................2-70
2.5-10  Steps in Pre-Exercise Phase ........................................2-71
2.5-11  Table-Top Documentation ............................................2-72
2.5-12  Steps in Exercise Conduct Phase ....................................2-73
2.5-13  Steps in Post-Exercise Phase .......................................2-74
2.5-14  After-Action Report (Outline for Large Exercise) ...................2-82
2.6-1   Task II Overview ...................................................2-83
2.6-2   Nine Steps to Support External Exercises ...........................2-88
2.7-1   Task III Overview ..................................................2-90
2.7-2   Task III Technical Approach ........................................2-95

                                       iii
<PAGE>

                                LIST OF EXHIBITS

EXHIBIT                                                                     PAGE

3.1-1   The Project Team ................................................... 3-4
3.1-2   Task Skill Requirements ............................................ 3-8
3.1-3   Personnel Skills ................................................... 3-9
3.3-1   Titan Task Order Management Process ................................3-45

4.1-1   Technical Support Spectrum ......................................... 4-1
4.2-1   Contract Data ...................................................... 4-7

5.0-1   The Titan Corporation .............................................. 5-1
5.1-1   Titan Systems Group ................................................ 5-2

                                       iv
<PAGE>

                                                                    [LOGO] TITAN

                               EXECUTIVE SUMMARY

      Titan Corporation is pleased to respond to the Request for Proposal (RFP)
DTFA06-94-R-30067 and Amendment 0001 thereto to provide technical services in
support of the Federal Aviation Administration's (FAA) Emergency Operations
Program. Titan brings a history of outstanding support to the Federal government
in emergency preparedness support and is experienced in every aspect of
emergency preparedness planning, exercise design, conduct, and evaluation. We
have analyzed the solicitation carefully and propose an approach which we have
successfully used in providing current support to the FAA's Emergency Operations
Program, as well as other programs of a similar nature in the national emergency
operations community. In fact, our current efforts are virtually parallel to
those contained in this Statement of Work (SOW). Based on our past experiences,
our program experience, and our proposed approach, we are highly confidant that
our development of FAA exercises and the assistance in emergency plan
formulation will continue to successfully meet FAA's expectations. We have a
proven track record for meeting contract requirements with a high degree of
success, within cost, and on schedule.

      IN ADDITION TO OUR STRONG CORPORATE COMMITMENT TO THIS PROGRAM TITAN'S
QUALIFICATIONS ARE CHARACTERIZED BY:

      -     Strong, current RELEVANT EXPERIENCE by virtue of near-term
            successful exercise support to the FAA on tasks defined in this
            procurement and a history of high quality, successful performance on
            this and similar complex, multimillion dollar programs.

                                      ES-1

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      -     The availability of KEY PERSONNEL to support this effort by way of a
            top-notch project manager and a highly qualified group of additional
            Titan staff.

      -     Detailed TECHNICAL KNOWLEDGE of and involvement with all aspects of
            the Federal Response Plan and FAA Order 1900.1E, FAA Emergency
            Operations Plan, extensive experience in planning, training, and
            exercising for emergency operations programs at local, State, and
            Federal levels.

      -     Strong security awareness, excellent facilities and superb
            administrative support equipment and people.

      WE UNDERSTAND THE ROLES, MISSIONS, AND INTERFACES OF THE NATIONAL
COMMUNITY INVOLVED IN THE CONDUCT OF EMERGENCY PREPAREDNESS EXERCISES:

      -     We understand the FAA's mission and system capabilities, and
            requirements, and the need to structure an exercise program that
            will validate and improve its emergency preparedness programs.

      -     We have assisted other Federal departments and agencies in planning
            and development of their exercise programs. Because we are currently
            active in these programs, there is a synergism in our ability to
            integrate emergency preparedness common issues into early exercise
            planning. This enhances the effectiveness of all programs.

      OUR TECHNICAL APPROACH HAS PROVEN TO BE SOUND:

      -     Our capability to implement our proposed planning methodology has
            been substantiated on numerous occasions for a diverse group of
            customers. This included design, scenario development, conduct, and
            evaluation of exercises such

                                      ES-2
<PAGE>

                                                                    [LOGO] TITAN

            as FEMA sponsored CIVEX and HILEX series, CJCS sponsored PROUD SCOUT
            and PROUD EAGLE; NATO sponsored CMX; DOE/FBI sponsored MIRAGE GOLD;
            DOJ sponsored SOFLEX; along with many natural and technological
            disaster exercises within which the on-going FAA activity is
            included.

      -     Experience has shown that our methodology is valid and is directly
            reflected in every step of the exercise development process.
            Further, we fully understand the coordination process necessary
            among the elements of the national hierarchy as well as within the
            regional and local structure.

      -     Our technical approach and qualified staff will ensure that overall
            exercise support effort provides a reliable means to evaluate
            emergency preparedness so as to ultimately enhance operational
            capability.

      -     We understand what to do and are prepared to begin immediately.
            Staffing continuity and stability will be retained. We do not need
            to hire personnel to perform this work.

      WE OFFER A PROVEN MANAGER WHO IS KNOWN IN THE EMERGENCY PREPAREDNESS
COMMUNITY AND WHO HAS MANY YEARS EXPERIENCE IN COMMAND AND CONTROL, OPERATIONS,
PLANNING, AND EXERCISING.

      -     Mr. John Chambers, a designated key individual for this procurement,
            has been selected to lead this effort because of his previous FAA
            exercise experience and his in-depth participation in critical
            national exercise programs that involved agencies at the local,
            State, and Federal level. His involvement in these activities
            required extensive knowledge of FAA Order 1900.1E, FAA Emergency

                                      ES-3

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

            Operations Plans and the Federal Response Plan. Mr. Chambers is a
            proven successful program manager and will actively participate in
            all activities required by this procurement.

      WE OFFER A WELL QUALIFIED STAFF COMMITTED TO PROGRAM SUCCESS.

      -     The individuals selected to support this procurement collectively
            represent well over 100 years of operations planning and exercise
            experience.

      -     Our personnel have supported the planning, conduct, and/or
            evaluation of virtually every national-level exercise since 1981.
            Our in-depth active participation in local, State and Federal
            exercises as well as real world events has provided us with a clear
            understanding of the problems that need to be resolved following a
            major disaster.

      -     We have assigned individuals based upon an analysis of skills and
            background in exercises, operations planning, and who are
            knowledgeable of the requirements of this solicitation.

      WE REAFFIRM OUR CORPORATE COMMITMENT TO THE FAA EMERGENCY OPERATIONS
PROGRAM:

      -     Support to this program will continue to receive top priority
            attention by Mr. A. E. Knauf, Executive Vice President of TITAN and
            Mr. Paul Carlson, Executive Vice President for Titan Systems Group.
            All personnel proposed for this effort look forward to building on
            current achievements and to continue as members of this essential
            FAA program.

                                      ES-4
<PAGE>

                                                                    [LOGO] TITAN

                                1.0 INTRODUCTION

      TITAN'S PROPOSAL IS FULLY RESPONSIVE TO THE REQUEST FOR PROPOSAL AND HAS
      BEEN STRUCTURED TO PROVIDE INFORMATION REQUIRED IN A CLEAR AND CONCISE
      MANNER.

      This proposal is submitted to the Federal Aviation Administration (FAA) in
response to Request for Proposal (RFP)/Solicitation Number DTFA06-94-R-30067,
dated November 10, 1994, and Amendment 0001 thereto, effective December 2, 1994.
It describes the approach and the capabilities of Titan to meet the requirements
in the Statement of Work (SOW). Our approach is fully responsive to the
requirements of the RFP and the demanding activities included in supporting the
FAA in its emergency operations program -- internal and external exercise effort
and development of emergency plans and standard operating procedures.

      Titan clearly recognizes the needs and requirements for the full duration
of the contract. We are able to meet these requirements because of our extensive
corporate experience and our current involvement in both on-going exercise
programs and in present-day emergency planning activities. Upon award of the
contract and the issuance of task orders, we will submit a work plan for the
accomplishment of these tasks, along with a proposed schedule, after
coordination with the FAA. These, together with our fully capable team, will
ensure a quick and responsive start of the required support.

                                       1-1

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

1.1 ORGANIZATION OF THE PROPOSAL

      We have structured our proposal in the same manner that we believe the
documentation produced under this contract should be
structured--straightforward, concise, readable, and neither redundant nor overly
protracted.

      Our proposal is organized into a technical proposal and a cost proposal.
The technical proposal is organized as shown in Exhibit 1.1-1.

                       EXHIBIT 1.1-1 PROPOSAL ORGANIZATION

================================================================================
    Section
    -------

     1.0        INTRODUCTION. Presents an overview of the proposal and explains
                its organization.

     2.0        TECHNICAL APPROACH. Details our understanding of the
                requirements and our proposed technical approach.

     3.0        PROJECT MANAGEMENT PLAN. Describes our proposed organization to
                successfully provide the required support and the capabilities
                of our proposed project team.

     4.0        PREVIOUS RELATED EXPERIENCE. Demonstrates our broad experience
                in providing superior support in similar efforts.

     5.0        CORPORATE FACILITIES AND RESOURCES. Outlines our overall
                corporate capability to support this effort.

   Annex A      TABLE OF ABBREVIATIONS. Explains abbreviations and acronyms used
                in this proposal.

   Annex B      COMPLIANCE MATRIX. Documents our compliance with the
                requirements and evaluation criteria contained in the SOW.
================================================================================

      The SOW specifies that the first year tasks and deliverables include
five-regional table-top exercises based on a catastrophic technological disaster
or similar scenario and a headquarters

                                       1-2
<PAGE>

                                                                    [LOGO] TITAN

and multi-regional/headquarters exercise involving a catastrophic natural
disaster. The SOW also provides for multi-year tasking with repetitive
exercises. Therefore, in Section 2.0, we have taken the approach of presenting
the exercise descriptive material in an inclusive manner vice a by-exercise
breakdown. The three types of tasks may be performed in each year of the
contract, spread through the term of the contract, or conducted as directed by
the Contracting Officer's Representative (COTR). Section 2.0 is most critical in
the understanding and evaluation of this proposal, since it includes our
understanding of the SOW requirements and their relationship to critical Federal
planning documents which are the basic references for much of the detailed
processes and procedures.

1.2 COMPLIANCE MATRIX

      For the reader's ease in understanding and evaluating our proposal, we
have developed a compliance matrix, contained in Annex B, that provides a
cross-reference between requirements of the RFP, including the SOW and
evaluation criteria, and the proposal sections that respond to those
requirements.

                                       1-3

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                                                                    [LOGO] TITAN

                             2.0 TECHNICAL APPROACH

      TITAN'S TECHNICAL APPROACH CLEARLY DEMONSTRATES A DETAILED UNDERSTANDING
      OF THE FEDERAL RESPONSE PLAN (FRP), FAA'S EMERGENCY OPERATIONS PROGRAM,
      AND FAA'S EMERGENCY OPERATIONS PLAN. OUR SUCCESSFUL APPROACH TO
      DEVELOPING, CONDUCTING, AND EVALUATING EXERCISES, INCLUDING THE RECENT
      SERIES OF FAA REGIONAL CATASTROPHIC DISASTER RESPONSE EXERCISES, IS
      RECOGNIZED THROUGHOUT THE EMERGENCY MANAGEMENT COMMUNITY.

      Over the past several years (1992-1994), we have been involved in
providing assistance to the FAA's Emergency Operations Program (ADA-20) in
meeting its goals and objectives. A key element of the required support is
providing recommendations for development or revision of operations plans such
as Order 1900.1E, FAA Emergency Operations Plan, and its regional and center
supplements, standard operating procedures (SOP's), and the exercise of these
plans and procedures under realistic conditions. From these exercises,
invaluable lessons learned were received and provided potential
recommendations/comments for the revision and validation of these emergency
operations plans and procedures, and a better understanding of the FAA's role in
supporting more encompassing response plans, such as the Federal Response Plan
(FRP). The improvements that result will lead to enhanced mission readiness and
clarification of roles and responsibilities of the components of the FAA's
Emergency Operations Program. The potential FAA must maintain an uninterrupted
capability in an all-hazards/all-risks environment to perform its mission;
perform all essential (emergency) functions; and, as a primary objective,
effectively manage the safe and efficient utilization of the National Airspace
System (NAS).

                                       2-1

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      Exercises in support of the FAA's Emergency Operations Program, in which
the FAA plans and procedures can be examined in an operational context, and
which constitute the primary emphasis of this procurement, have been Titan's
primary emphasis during the last three years, and will continue to be in the
future. Titan has demonstrated its capabilities for providing support to the
FAA's Emergency Operations Program and, with its experienced team of subject
matter experts, will continue to effectively support the FAA's Emergency
Operations Program and the Manager, Emergency Operations Staff, in achieving the
objectives of this vital program.

      Exhibit 2.0-1 illustrates Titan's goals and approach to our long-term
commitment to the FAA and its Emergency Operations Program.

                         EXHIBIT 2.0-1 TITAN COMMITMENT

--------------------------------------------------------------------------------

           --------------------------
                  TITAN GOALS

           - FULL SOW COMPLIANCE
           - PROFESSIONAL PERFORMANCE
           - CREATIVITY
           --------------------------

                                 -------------------------------
                                          TITAN APPROACH

                                 - EXPERIENCED TEAM
                                 - ACTIVE CORPORATE INVOLVEMENT
                                 - CONTINUITY AND DEDICATION
                                 -------------------------------

                                                    ----------------------------
                                                               RESULTS

                                                    LONG-TERM COMMITMENT TO FAA
                                                    EMERGENCY OPERATIONS PROGRAM
                                                    ----------------------------

--------------------------------------------------------------------------------

                                       2-2
<PAGE>

                                                                    [LOGO] TITAN

     The remainder of this section is organized as shown at Exhibit 2.0-2.

                 EXHIBIT 2.0-2 ORGANIZATION WITHIN SECTION 2.0

================================================================================
 SECTION                              CONTENTS
--------------------------------------------------------------------------------
   2.1      Presents our understanding of Solicitation requirements to include
            relevant background discussion.
--------------------------------------------------------------------------------
   2.2      Presents a discussion of our understanding of the Statement
            of Work. It provides reference to basic elements of the SOW
            tasks and links them to experience which aids in
            understanding.
--------------------------------------------------------------------------------
   2.3      Presents our understanding of the evaluation criteria.
--------------------------------------------------------------------------------
   2.4      Presents our understanding of the support requirements generated by
            the execution of the exercise program.
--------------------------------------------------------------------------------
   2.5      Presents our technical understanding of the requirements
            for support to the planning, conduct, control, and
            evaluation of internal FAA exercises (Task I).
--------------------------------------------------------------------------------
   2.6      Presents our understanding of the requirements for support
            to FAA participation in exercises involving external
            agencies (Task II).
--------------------------------------------------------------------------------
   2.7      Presents our approach to the provision of other technical
            services (i.e., operational planning support) (Task III).
================================================================================

                                       2-3

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

2.1 UNDERSTANDING THE REQUIREMENT

2.1.1 BACKGROUND

      The basis of the FAA's Emergency Operations Program can be found in
Executive Order 12656, Assignment of Emergency Preparedness Responsibilities,
November 18, 1988; THE ROBERT T. STAFFORD DISASTER RELIEF AND EMERGENCY
ASSISTANCE ACT Public Law 93-288, as amended, and the FRP dated April 1992.
Under these authorities and directives, Federal departments and agencies
(D/A's), including the FAA, are assigned preparedness, response, and recovery
responsibilities, as extensions of their regular missions, to meet essential
defense and civil needs during national security emergencies, natural disasters,
technological emergencies, or other emergency situations that seriously degrade
or threaten the mission of the FAA. To satisfy these requirements, the FAA has
initiated a comprehensive Emergency Operations Program to:

      -     Develop an emergency management capability

      -     Identify the essential (emergency) functions

      -     Develop the plans and procedures to guide the performance of the
            functions

      -     Establish crisis management centers (CMCs) to provide the capability
            to execute the plans during emergencies

      -     Develop and maintain a vital records program

      -     Establish an exercise program that will test, evaluate, and validate
            these plans, and enhance actual operational capabilities.

                                       2-4
<PAGE>

                                                                    [LOGO] TITAN

      In support of this program, Titan has assisted the FAA's Emergency
Operations Staff in the past three years in the development and conduct of a
series of nine regionally-oriented catastrophic disaster response exercises, as
shown in Exhibit 2.1-1. In addition, Titan, assisted ADA-20, in coordination
with Flight Standards Service, in the development of a prototype methodology
(with a supporting annotated briefing) to assist crisis response group members
in defining individual essential (emergency) functions. These materials were
then used as an aid in discussions during the December 1994 emergency planners'
meeting.

                EXHIBIT 2.1-1 FAA REGIONAL EXERCISES (1992-1994)

                                  [MAP]

      The implementing directive for emergency preparedness within the FAA is
Order 1900.1E, FAA Emergency Operations Plan, July 21, 1993. This directive
provides for an all-hazards/all-risk approach to emergency situations. This plan
defines the structure and mechanism for the FAA to respond to emergency
situations affecting only the FAA, and

                                       2-5

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

provides guidance and direction that the FAA must have to assist it in
supporting other Federal departments and agencies when responding to large scale
emergency situations requiring interD/A coordination. This support would go
first to the Department of Transportation Emergency Organization (DOT-EO) and
then to Federal Emergency Management Agency (FEMA) under the functional approach
first developed as part of Executive Order 12656, as part of the National
Security Emergency Preparedness (NSEP) Program and contained in the FRP. As a
result of our prior support to FAA and FEMA, the Titan team has a full
understanding of the NSEP, as well as the Federal Response Plan and the FAA
Emergency Operations Plan. Additionally, as a result of our experience in
support of this program and other related experience, we have a clear
appreciation of the problems faced by local, State and Federal responders to a
major disaster.

2.1.2 FAA EMERGENCY OPERATIONS PROGRAM AND THE EMERGENCY OPERATIONS PLAN

      The FAA Emergency Operations Program, as implemented by FAA Order 1900.1E,
FAA Emergency Operations Plan, is based upon NSEP policy. Its mission is to
ensure that the FAA shall survive and endure, provide for the protection of
personnel and key facilities, and provide for the continuity of NAS and other
essential FAA functions.

      The resulting overall concept for the FAA's Emergency Operations Program
provides for the full cycle of mutually supportive and iterative planning,
training, exercising, and evaluating illustrated in Exhibit 2.1-2. Based on our
experience, we recognize that successful execution of this cycle is extremely
important to the continued refinement of the Emergency Operations Program. The
1992-1994 series of regional catastrophic disaster response exercises was, in

                                       2-6
<PAGE>

                                                                    [LOGO] TITAN

many cases, the first real exercise of the FAA's Emergency Operations Plan and
its regional supplements. We will, continue to assist ADA-20 in taking the
lessons learned from exercises, as well as real world experiences, and use them
to improve the planning in all facets of emergency operations. We will also
assist in the revision of the FAA Emergency Operations Plan and the regional
supplements based upon applicable lessons learned. The value of this cyclical
process is in the potential overall upgrade of operational processes and
procedures and enhanced mission readiness.

       Exhibit 2.1-2 FAA's EMERGENCY OPERATIONS PROGRAM DEVELOPMENT CYCLE

--------------------------------------------------------------------------------

                                    Planning
                  Evaluating                        Training
                                   Exercising

--------------------------------------------------------------------------------

      The purpose of the FAA Emergency Operations Plan is to establish the
policies and procedures for the FAA Emergency Operations Program and assign
implementation responsibilities to appropriate FAA elements. The concept for the
FAA's Emergency Operations Program and its Crisis Response System (as described
in the Emergency Operations Plan) is set forth in the following restatements of
FAA policy:

                                       2-7

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

". . . participate fully in the planning process... for national security
emergency plans, including planning for natural and technological
disasters. . .."

". . . exercise FAA emergency plans at all levels within the agency regularly.
Additionally, FAA shall participate fully in NSEP exercises sponsored by defense
and civil departments and agencies. Appropriate individual and organizational
training shall be conducted to ensure the agency-wide effectiveness of FAA
emergency operations."

". . . maintain survivable fixed and transportable command and control
communications. . .."

". . . maintain primary and alternate command and control facilities for
national headquarters, and regional headquarters, and the Aeronautical and
Technical Centers."

FAA policy also shapes commitments which include actions to:

-     Use, to the extent possible, FAA organizational structures and reporting
      systems for management of emergencies, crises, or threats. When a
      situation warrants special vigilance, or there exists the potential for a
      significant adverse threat to FAA operations, the Administrator or the
      Deputy Administrator (for headquarters), regional administrators (for
      their respective regions), the Associate Administrator for the Mike
      Monroney Aeronautical Center, and the Director of the Technical Center may
      direct the activation of Crisis Response Steering and Working Groups
      (CRSGs/CRWGs) to coordinate mitigation and response actions.

                                       2-8
<PAGE>

                                                                    [LOGO] TITAN

      -     Respond to major disasters at the regional level. Regional
            administrators are authorized to employ regional resources to
            prepare for or respond to a disaster situation. The regional
            administrator shall also assume operational direction of all FAA
            regional elements under conditions where no communications exist
            between headquarters and the affected region(s) during a national
            security emergency.

      -     Participate fully in the planning process regarding the development
            of FAA responsibilities for national security and
            all-hazards/all-risk plans, including planning for natural and
            technological disasters and any plan activation. From the
            perspective of evaluation, FAA policy is to maintain a viable
            emergency operations evaluation program at headquarters, regional,
            and center levels to assess FAA emergency effectiveness, determine
            the adequacy of emergency plans, and promote continual improvements
            to FAA emergency capabilities.

      The FAA Administrator has the overall responsibility for the emergency
management of the FAA and the establishment of policy relating to the emergency
operations program. The Deputy Administrator is the FAA official responsible for
developing, promulgating, and evaluating the FAA's emergency operations program.
The Deputy Administrator manages the implementation of the Administrator's
emergency preparedness policy. The Deputy also serves as the leader of the FAA
CRSG and acts for the Administrator in other civil preparedness and defense
forums. Overall management of the Emergency Operations Program (EOP) and much of
the day-to-day responsibilities fall to ADA-20 at the FAA Headquarters and the
Operations Center Chiefs at each of the regions and centers. At both the FAA
Headquarters, the regions, and the centers, support to the EOP and the FAA's CRS
(see our understanding of the CRS in

                                       2-9

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

Exhibit 2.1-3) is provided by CRSGs and CRWGs at each level. They provide the
combination of policy and management expertise needed to respond to an emergency
situation.

      Headquarters, regional, and center CRSGs consist of FAA policy level
officials designated to exercise direction and control over the CRS for the FAA.
At the headquarters level, the steering group is chaired by the Deputy
Administrator or designee. Normally, the Regional CRSG is chaired by the Deputy
Regional Administrator.

                 EXHIBIT 2.1-3 FAA CRISIS RESPONSE SYSTEM (CRS)*

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

                               EXECUTIVE BRANCH
                    (FRP: OTHER DEPARTMENTS AND AGENCIES)

                         DEPARTMENT OF TRANSPORTATION

GOVERNMENTAL         FAA HEADQUARTERS           EOP             PRIVATE SECTOR
INTERACTIONS                                 (ADA-20)           INTERACTIONS

OTHER COUNTRIES          POLICY                                 MEDIA
                          CRISIS RESPONSE   MANAGEMENT
                          STEERING GROUP     CRISIS RESPONSE    - RADIO
GOVERNORS AND                (CRSG)          WORKING GROUP
STATE OFFICIALS                                 (CRWG)          - TELEVISION
                   REGIONS / CENTERS
CITY & COUNTY                                                   - PRINT
GOVERNMENT            REGIONAL HEADQUARTERS (9)
OFFICIALS                TECHNICAL CENTER                       VOLUNTEER GROUPS
                            MIKE MONRONEY AERONAUTICAL CENTER
LOCAL JURISDICTIONS      POLICY                                 INDUSTRY AND
                          CRISIS RESPONSE   MANAGEMENT          BUSINESS
- POLICE                  STEERING GROUP     CRISIS RESPONSE
                              (CRSG)          WORKING GROUP     PUBLIC AT LARGE
- FIRE                                           (CRWG)
                                                                OTHER
- RESCUE                    FIELD UNITS/INFRASTRUCTURE
                    (E.G., ARTCCs, ATCTs, FSDOs, FSSs, SECTORS)

                        ALL-HAZARDS / ALL RISKS ENVIRONMENT

--------------------------------------------------------------------------------

* NOT SHOWN ARE THE NUMEROUS TECHNICAL AND SUPPORT RESOURCES, (E.G., NATIONAL
  MAINTENANCE COORDINATION CENTER [NMCC], "FLOW CONTROL," LOGISTICS CENTER,
  CONTINGENCY COMMUNICATIONS SUPPORT TEAM [CCST], VITAL RECORDS, AND OTHERS).

--------------------------------------------------------------------------------

      Headquarters, regional, and center CRWGs include FAA management officials
involved in response actions and with receiving, evaluating, and distributing
information and coordinating with other FAA elements concerning development of
response actions. As can be seen from the

                                      2-10

<PAGE>

                                                                    [LOGO] TITAN

exhibit, much of this interaction is dependent upon information received from
many sources. On one hand, governmental interactions may include other
countries, as well as our own government officials, while private sector
interactions may include the media, volunteer groups, industry, the public at
large, and others.

      There are two specific aspects of the FAA's Emergency Operations Program
which deserve special attention. The first addresses the FAA's preparedness and
response systems; the second addresses situation reporting.

      During the recently completed series of regional exercises, two unique but
complementary preparedness and response systems, the READINESS LEVEL SYSTEM AND
THE SECURITY CONDITION (SECON) SYSTEM, were introduced during actual exercise
play. The readiness level system provides for an increase in FAA's preparedness
and a post-event response to emergency or disaster situations. The SECON system
provides increased FAA security management and risk reduction resulting from
internal and external threats. Since these two systems are recent modifications
or additions to the Emergency Operations Program, we were able to assist ADA-20
in highlighting their importance and reinforced this importance by encouraging
the exercise players at each location to understand what these two systems do,
and also to address their implementation.

      The situation report (SITREP) has become the most important document
produced by the CRSGs. It is the vehicle that brings together the status and
assessment of the emergency situation to which the FAA's CRS is reacting.
Importantly, in real emergency situations, it is the single product that the FAA
Administrator, and the Secretary of Transportation uses to

                                      2-11

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

promulgate the latest situation assessment information. In each exercise, the
development of this document became one of the most important outputs of each
crisis response group.

      In the recent past, the world has changed and we are beginning to see more
of a balance between preparations for response to national security emergencies
and responses to all-hazard/all-risk natural and technological disasters. With
the dissolution of the Soviet Union, and less emphasis on the massive nuclear
threat, less priority has been given to that aspect of emergency operations
planning. We have, however, seen an increase in the commitment to provide
assistance in natural disasters, such as Hurricane ANDREW in Florida and the
Northridge Earthquake in California. These disasters did require coordinated
Federal responses, and lessons learned have had some impact on FAA operations.
Without question there has been a greater appreciation by the exercise
participants of the problems faced by local, State, and Federal responders to
disasters of these types.

      The recently announced FAA reorganization, along with significant
downsizing in many of the FAA's major operational elements, will put increased
emphasis on the FAA's Emergency Operations Program and its exercise planning,
particularly as it relates to enhancement of mission accomplishment. The result
of these reductions will be an approach of doing more with less in an
increasingly austere environment. Titan recognizes the constraints associated
with such activities and, because of our experience in supporting the Emergency
Operations Program's current exercise series, we can and will ensure that future
exercises are designed to maximize the return on the FAA's training and exercise
investment.

                                      2-12
<PAGE>
                                                                    [LOGO] TITAN

2.1.3 THE FAA AND THE FEDERAL RESPONSE PLAN (FRP)

      The Federal response to a wide range of domestic and national security
emergencies "traditionally" relied on individual (or groups of) departments and
agencies to respond within the bounds of their individual missions or charters.
In the mid-1980's, the staffs of the National Security Council (NSC) and the
Domestic Policy Council (DPC) determined that: 1) the Federal Government should
respond to all emergencies using similar response structures; and 2) such
response structures should be functional. These determinations were based upon
the beliefs that it is inefficient to organize differently for different
emergencies, and that most Federal-level emergency functions are shared among
Federal D/A's. It was felt that placing lead responsibility with the Federal D/A
having the greatest day-to-day responsibility (and expertise) for a particular
emergency would result in increased efficiencies in mitigation activities and
related costs.

      The FRP refined this initial guidance. In 1988, Public Law 93-288 was
amended by Public Law 100-707 and retitled the ROBERT T. STAFFORD DISASTER
RELIEF AND EMERGENCY ASSISTANCE ACT. The "Stafford Act" provides the authority
for the Federal Government to respond to disasters and emergencies in order to
provide assistance to save lives and protect public health, safety, and
property. The FRP implements that authority and is designed to address the
consequences of any disaster or emergency situation in which there is a need for
Federal response assistance under the authorities of the Stafford Act. It is
applicable to natural disasters such as earthquakes, hurricanes, typhoons,
tornadoes, floods, and volcanic eruptions, as well as technological emergencies;
and other incidents requiring Federal assistance under the Act. The purpose of
the FRP is to:

                                     2-13

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      -     Establish fundamental assumptions and policies

      -     Establish a concept of operations that provides an interagency
            coordination mechanism to facilitate the immediate delivery of
            Federal response assistance

      -     Incorporate the coordination mechanisms and structures of other
            appropriate Federal plans and responsibilities into the overall
            response

      -     Assign specific functional responsibilities to appropriate Federal
            D/As

      -     Identify actions that participating Federal D/As will take in the
            overall Federal response, in coordination with the affected states.

      The FRP describes the basic mechanisms and structures by which the Federal
Government will mobilize resources and conduct activities to augment State and
local response efforts. To facilitate the provision of Federal assistance, the
FRP uses a functional approach to group the types of Federal assistance which a
state is most likely to need under 12 Emergency Support Functions (ESFs) (see
Exhibit 2.1-4). Each ESF is headed by a primary agency, which has been selected
based on its authorities, resources, and/or capabilities in the particular
functional area. In the case of ESF #1 (Transportation), the DOT is primary with
the FAA providing support, upon Presidential declaration of a disaster. As noted
in Exhibit 2.1-4, DOT (in addition to being the Lead Agency for ESF #1) is also
a supporting agency for all other ESFs except ESF #4 (fire fighting). In turn,
the FAA, as part of DOT, provides a supporting role in these ESFs. The 12 ESFs
serves as the primary mechanism through which Federal response assistance will
be provided to assist the State in meeting response requirements in an affected
area. Federal assistance will be provided to the affected State under the
overall coordination of the Federal Coordinating Officer (FCO) appointed by the
Director of FEMA on behalf of the President.

                                           2-14
<PAGE>
                                                                    [LOGO] TITAN

                            Exhibit 2.1-4 DOT and FAA Support to ESFs
<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------------
                                 EMERGENCY SUPPORT FUNCTIONS
----------------------------------------------------------------------------------------------------
                                                                                   FAA  Support*
ESF    Function       Primary                          Supporting               -------------------
 #    Description     Agency                    Departments and Agencies        Addressed   Implied
----------------------------------------------------------------------------------------------------
<S>                     <C>                <C>                                     <C>       <C>
                        ---
 1   TRANSPORTATION     DOT                USDA DOD DOE DOS GSA ICC TVA USPS        X
                        ---
----------------------------------------------------------------------------------------------------
                                                            ---
 2   COMMUNICATIONS     NCS                USDA DOC DOD DOI DOT FCC FEMA GSA        X
                                                            ---
----------------------------------------------------------------------------------------------------
                                                                     ---
 3   PUBLIC WORKS AND   DOD                USDA DOC DOE DHHS DOI DOL DOT VA         X
     ENGINEERING                           EPA GSA TVA               ---
----------------------------------------------------------------------------------------------------
 4   FIREFIGHTING       USDA               DOC DOD DOI EPA FEMA
----------------------------------------------------------------------------------------------------
 5   INFORMATION AND    FEMA               USDA DOC DOD DOEd DOE DHHS DOI DOJ                  X
     PLANNING                              ---
                                           DOT TREAS ARC EPA GSA NASA NCS NRC
                                           ---
----------------------------------------------------------------------------------------------------
                                                                  ---
 6   MASS CARE          ARC                USDA DOC DOD DHHS DHUD DOT VA                       X
                                           FEMA GSA USPS          ---
----------------------------------------------------------------------------------------------------
                                                                     ---
 7   RESOURCE SUPPORT   GSA                USDA DOC DOD DOE DHHS DOL DOT VA                    X
                                           FEMA NCS OPM              ---
----------------------------------------------------------------------------------------------------
                                                        ---
 8   HEALTH AND         DHUD               USDA DOD DOJ DOT VA AID ARC EPA          X
     MEDICAL SERVICES                                   ---
                                           FEMA GSA NCS USPS
----------------------------------------------------------------------------------------------------
                                                         ---
 9   URBAN SEARCH       FEMA               USDA DHHS DOL DOT AID EPA DOD GSA                   X
     AND RESCUE     (formerly DOD)                       ---
----------------------------------------------------------------------------------------------------
10   HAZARDOUS          EPA                USDA DOC DOD DOE DHHS DOI DOJ DOL                   X
     MATERIALS                                 ---
                                           DOS DOT FEMA GSA NRC
                                               ---
----------------------------------------------------------------------------------------------------
                                                    ---
11   FOOD               USDA               DOD DHHS DOT ARC EPA FEMA                           X
                                                    ---
----------------------------------------------------------------------------------------------------
                                                        ---
12   ENERGY             DOE                USDA DOD DOS DOT GSA NCS NRC TVA                    X
                                                        ---
----------------------------------------------------------------------------------------------------
</TABLE>
      *Addressed = FAA is specifically mentioned

      Implied = Phraseology is used such as: "air and marine traffic control"
            or "...address all modes of transportation (e.g., truck, rail, air,
            and sea)..."

In the preparation of this proposal, members of the Titan Corporate Team
conducted a separate research effort. An examination of the detailed
requirements and responsibilities revealed that the FAA is involved across the
spectrum of Emergency Support Functions. Although current language does not
specify support to ESF #4, the Titan team believes (in real operations) FAA
support would be needed and that this omission in the planning details is
probably an oversight.

--------------------------------------------------------------------------------

      According to the FRP concept, during the period immediately following a
major disaster or emergency requiring Federal response, primary agencies such as
the DOT, when directed by FEMA, will take actions to identify requirements and
mobilize and deploy resources to the affected area to assist the State(s) in its
(their) response efforts. Each ESF, such as ESF #1 (Transportation), has been
assigned a number of missions to provide response assistance to the State(s).

      The organizational structure used to support the implementation of the FRP
is depicted in Exhibit 2.1-5. The structure shows those organizational elements
which provide response coordination and response operations activities at
national and regional levels.

                                      2-15

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                    EXHIBIT 2.1-5 FEDERAL RESPONSE STRUCTURE
================================================================================
                  -----------------------            -----------------------
                       CATASTROPHIC
                     DISASTER RESPONSE                     HEADQUARTERS
NATIONAL               GROUP (CDRG)         ------        ESF OPERATIONS
 LEVEL            -----------------------            -----------------------
                     EMERGENCY SUPPORT                  PRIMARY AGENCIES &
                        TEAM (EST)                       SUPPORT AGENCIES
                  -----------------------            -----------------------
--------------------------------------------------------------------------------
                  -----------------------            -----------------------
                    FEDERAL COORDINATING                     REGIONAL
REGIONAL               OFFICER (FCO)        ------        ESP OPERATIONS
 LEVEL            -----------------------            -----------------------
                     EMERGENCY RESPONSE                 PRIMARY AGENCIES &
                        TEAM (ERT)                       SUPPORT AGENCIES
                  -----------------------            -----------------------
================================================================================

      In general, national-level elements provide support to regional-level
elements which implement the on-scene response operations. The Catastrophic
Disaster Response Group (CDRG) is the coordinating group which addresses policy
issues and support requirements from the FCO and ESF response elements in the
field. The Emergency Support Team (EST) is an interagency group comprised of
representatives from each of the primary agencies, such as the DOT for ESF #1,
select support agencies, and FEMA Headquarters staff. At the regional level, the
Emergency Response Team (ERT) is the interagency group that provides
administrative, logistics, and operational support to regional response
activities and supports the FCO in carrying out interagency activities. In
addition, there is an emerging concept called the National Emergency Response
Team (ERT-N). These teams, of which there are three, will be activated and
deployed to a catastrophic disaster area where there is an expectation that the
resources of

                                      2-16
<PAGE>
                                                                   [LOGO] TITAN

the State and the Federal region have been, or will be, overwhelmed. The FAA,
for its part, provides representation to ESF #1 (Transportation) at both
national and regional levels and plays a supporting role in all of the ESFs
except ESF #4 (Fire Fighting).

      Exhibit 2.1-6 illustrates our understanding of how the FAA fits into the
overall Federal response process, either before or after the activation of the
FRP. Before the activation of the FRP, the FAA, through its headquarters,
regional CRSGs and CRWGs, and Crisis Response System provides support to the DOT
in accordance with its Crisis Action Plan. After the activation of the FRP, the
support provided by these same headquarters and regional groups comes under the
umbrella of the FRP and is channeled directly to the FAA representative at ESF
#1 (Transportation) at both the national and regional levels.

            EXHIBIT 2.1-6 FAA FEDERAL RESPONSE PLAN INFORMATION FLOW

<TABLE>
      <S>                      <C>                                <C>                           <C>
-----------------------------------------------------------------------------------------------------------------------------------
                    PRIOR TO FEDERAL                     |                                  AFTER
                   RESPONSE PLAN (FRP)                   |                       FEDERAL RESPONSE PLAN (FRP)
                       ACTIVATION                        |                                ACTIVATION
---------------------------------------------------------|-------------------------------------------------------------------------
                      DEPARTMENT OF                     F|
                     TRANSPORTATION                     E|
                          (DOT)     \                   D|
                                      \                 E|          HQ EMERGENCY SUPPORT           CATASTROPHIC DISASTER
                                        \               R|             FUNCTION (ESF)                  RESPONSE GROUP
        CRISIS RESPONSE          CRISIS RESPONSE        A|               OPERATIONS                        (CDRG)
         WORKING GROUP  _ _ _ _   STEERING GROUP _ _ _  L| _ _ _ _ _     __________     _ _ _ _ _ _     __________
         (HEADQUARTERS)           (HEADQUARTERS)         |
               |                        |               A|            DOT/FAA EMERGENCY              EMERGENCY SUPPORT
               |                        |               V|            SUPPORT FUNCTION                      TEAM
               |                        |               I|F               (ESF) #1                            |
               |                        |               A|E                  |                                |
               |                        |               T|D                  |                                |
NATIONAL       |                        |               I|E                  |                                |           NATIONAL
- - - - - - - -|- - - - - - - - - - - - | - - - - - - - O|R- - - - - - - - - | - - - - - - - - - - - - - - - -|- - - - - - - - - -
REGIONAL       |                        |               N|A                  |                                |            REGIONAL
               |                        |                |L                  |                                |
               |                        |               A|                   |                                |
               |                        |               D|              REGIONAL ESF                FEDERAL COORDINATING
        CRISIS RESPONSE          CRISIS RESPONSE        M|               OPERATIONS                    OFFICER (FCO)
         WORKING GROUP  _ _ _ _   STEERING GROUP _ _ _ _I| _ _ _ _ _ _ _ __________     _ _ _ _ _ _     __________
         (REGIONAL AND            (REGIONAL AND         N|
         CENTER LEVEL)            CENTER LEVEL)         I|             DOT/FAA ESF #1                EMERGENCY RESPONSE
                                                        S|              RETCO/RETREP*                    TEAM (ERT)
                                                        T|
                                                        R|
                                                        A|
                                                        T|
                                                        I|
                                                        O|
                                                        N|        *RETCO  = Regional Emergency Transportation Coordinator
                                                         |         RETREP = Regional Emergency Transportation Representative
-----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                      2-17

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      The purpose of ESF #1 is to provide for the coordination of Federal
transportation support to State and local government entities, voluntary
organizations, and Federal D/As requiring transportation resources to perform
disaster assistance missions following a disaster or other event requiring
Federal response. FAA responsibilities in support of ESF #1 are to:

      -     Coordinate airspace control to ensure flight safety and the
            facilitation of airlift services responding to the disaster

      -     Provide damage assessment information regarding the NAS and civil
            air services

      -     Provide support to ESF #1 in the execution of its responsibility to
            arrange civil air services.

      At the headquarters level, the Manager, Emergency Operations Staff
(ADA-20) becomes the FAA representative to ESF #1, supports DOT representatives
to the EST and the CDRG, coordinates with the FAA Headquarters CRSG and CRWG,
and serves as liaison to ESF #1 at the regional level. At the regional level,
the FAA regional administrators provide support to the ERT and ESF #1. The head
of ESF #1 at the region is the Regional Emergency Transportation Coordinator
(RETCO) assisted by the Regional Emergency Transportation Representative
(RETREP). For three regions [Southern (ASO), Southwest (ASW), and Alaska (AAL)],
the regional administrators are responsible for the appointment of a RETCO and
RETREP. The others come from the United States Coast Guard (USCG) and the
Federal Highway Administration (FHWA).

      While FAA support to and interface with the FRP has received a majority of
the emphasis in the last several years, there are two other Federal response
plans, as mentioned earlier, which could require FAA support or interface. One
is the Federal Radiological

                                     2-18
<PAGE>

                                                                   [LOGO] TITAN

Emergency Response Plan (FRERP), which provides for a coordinated Federal
response to a radiological emergency. The other plan is National Contingency
Plan (NCP), which provides the organizational structure and procedures for
preparing for and responding to discharges of oil and releases of hazardous
substances, pollutants, and contaminants. In the technological disaster response
exercise with the Great Lakes Region (AGL) in May 1994, the NCP was specifically
addressed. One objective was to make participants aware that there is more than
one Federally mandated response plan.

                                      2-19

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

2.2  UNDERSTANDING THE STATEMENT OF WORK

      We, at Titan, fully understand the requirements in the SOW and will
provide the same quality assistance to the FAA's Emergency Operations Program as
in the past for: internal exercise development (Task I); exercises sponsored by
D/A's external to the FAA (Task II); and assist in the development or revision
of Headquarters and regional emergency plans, associated appendices, and
standard operating procedures (SOP's) (Task III). An illustration of Task
interrelationships and other support requirements is shown in Exhibit 2.2-1.

                     EXHIBIT 2.2-1 TASK INTERRELATIONSHIPS

<TABLE>
<S>                           <C>                                               <C>
-----------------------------------------------------------------------------------------------------------------------

                              -------------------------------------             -------------------------------------
                                                             SOW                                               SOW
                              INTERNAL FAA EXERCISES                            EXTERNAL FAA EXERCISES
TRAINING AND                                               PARA 5.2                                          PARA 5.3
EXERCISES                       - HQ ONLY                   TASK I                - HQ ONLY                   TASK II
                                - REGIONS ONLY                                    - REGIONS ONLY
                                - COMBINED HQ & REGIONS                           - COMBINED HQ & REGIONS
                              -------------------------------------             -------------------------------------
                                 |                                                      |
- - - - - - - - - - - - - - - - -|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                 |                                                      |
                                 |      ------------------------------------------      |
                                 |                                          SOW         |
                                 |      OTHER TECHNICAL SERVICES                        |
OPERATIONAL PLANNING             |                                        PARA 5.4      |
                                 |----    - OPERATIONS PLANS              TASK III  ----|
                                 |        - ASSOCIATED APPENDICES                       |
                                 |        - SOPs                                        |
                                 |      ------------------------------------------      |
                                 |                                                      |
- - - - - - - - - - - - - - - - -|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                 |                                                      |
                                 |      ------------------------------------------      |
                                 |        - EXERCISE COORDINATION MEETINGS              |
EXERCISE COORDINATION            |        - EXERCISE DOCUMENT REVIEWS                   |
AND INTERFACE PROCESS            |----      - DOT                                   ----|
                                 |          - FEMA                                      |
                                 |          - OTHER D/As                                |
                                 |      ------------------------------------------      |
                                 |                                                      |
- - - - - - - - - - - - - - - - -|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                 |                                                      |
                                 |      ------------------------------------------      |
                                 |                                           SOW        |
                                 |      ACTIVITY REPORTS                                |
PROGRAM OVERSIGHT                |                                         PARA 4.      |
AND CONTROL                      |----    - WORK PLAN                     ACTIVITY  ----|
                                          - WEEKLY COTR STATUS MEETINGS    REPORTS
                                          - MONTHLY LETTER REPORTS
                                        ------------------------------------------

-----------------------------------------------------------------------------------------------------------------------
</TABLE>

                                      2-20
<PAGE>
                                                                    [LOGO] TITAN

      Additionally, as required by the SOW, exercise scenarios designed for this
effort will consist of national security emergencies, catastrophic natural and
technological disasters, and command and control exercises for the FAA. We have
extensive experience in developing these types of scenarios. In fact, shown
below are the Titan-developed scenarios in support of the 1992-1994 series of
ADA-20 sponsored exercises:

       Earthquake                   Hurricane                 Technological
       ----------                   ---------                 -------------

-  Western-Pacific (AWP)       -  Southern (ASO)          -  Great Lakes (AGL)

-  Northwest-Mtn (ANM)         -  Eastern (AEA)

-  Alaska (AAL)                -  New England (ANE)

-  Central (ACE)               -  Southwest (ASW)

      It is recognized that technical assistance is to be provided when specific
support is needed and sufficient funding is available. When assistance is
required, task orders specifying work to be accomplished will be issued. For
ease of subsequent discussion (as shown in Exhibit 2.2-1), we have identified
SOW paragraph 5.2 as TASK I, SOW paragraph 5.3 as TASK II, SOW paragraph 5.4 as
TASK III, and SOW paragraph 4 as ACTIVITY REPORTS. Our approach to task order
management is explained in Section 3.2.

      TASK I calls for assistance in the development and execution of internal
FAA exercises. This support is to be provided for all three phases of an
exercise: pre-exercise (planning and preparation), exercise conduct
(implementation), and post-exercise (evaluation and after-action reporting). The
pre-exercise phase includes activities supporting development of scenarios;
message preparation (e.g., implementers); controller services; logistics support
(e.g., Exercise

                                      2-21

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

Support Plan); Master Scenario Events List (MSEL); critique forms (to support
after-action reports); participants' information handouts, including Moderator's
Handbooks, Group Leader's Handbooks, Players' Handbooks, and Response Cell
Handbooks; and "school solution" papers. The exercise conduct phase requires
support by controllers and evaluators (as well as a facilitator/moderator) who,
depending on the design of the exercise, may be individuals who fill a dual role
of Controller/Evaluator. The post-exercise phase, requires the accumulation and
presentation of critique comments in the form of an After-Action Report.

      Exercises will be developed for regional-only play, headquarters-only
play, and combined region and headquarters exercises. In addition, it is our
understanding that exercises developed for the FAA's Technical Center and Mike
Monroney Aeronautical Center may be included in this definition. Exercise types
will consist of a mix of table-top and full scale exercises (FSEs), to be
conducted at both normal duty stations and alternate CMCs. Deployment to the
alternate CMCs can be part of the exercise play. In the Eastern Region's (AEA)
exercise (June 1994) the primary CMC at John F. Kennedy Airport was not used
and exercise conduct was at the alternate CMC at Islip, Long Island, N.Y.
Exercises will also operate selected FAA command and control communications.
Exercise duration depends on objectives; current exercises have typically been
designed for 12 hours over a two-day period. A full set of exercise
documentation will be prepared and coordinated for each exercise. In addition,
although not specified by the SOW, consideration could also be given to
expanding the participation of future exercises to involve more elements of the
FAA infrastructure that are vital to the support of the FAA's CRS.

                                      2-22
<PAGE>

                                                                   [LOGO] TITAN

      In TASK II, assistance will be provided to the FAA when participating in
exercises sponsored and/or supported by other government agencies. This support
will include the FAA and regional participation in major joint civil-military
exercises and other external exercises initiated by FAA or requiring FAA
participation (e.g., terrorist threats to FAA facilities, HAZMAT, earthquakes).
The level of exercise support provided will include the full range of
activities, as defined for Task I. We are also prepared to develop comprehensive
Exercise Plans (EXPLANs), Control Staff Instructions (COSINs), and Evaluation
Plans (EVALPLANs), when required. Other exercises requiring assistance to the
FAA could include, for example, exercises of the FRP and/or exercises in support
of the Department of Justice and implementation of the Immigration and
Naturalization Service's (INS) Mass Immigration Emergency Plan.

      TASK III calls for support to the FAA in development or revision of the
FAA and regional emergency plans, associated appendices, an SOP's for selected
aspects of the FAA and regional operations (i.e., related to the Emergency
Operations Program). An example of such technical support has been Titan's work
in helping ADA-20 identify and define essential (emergency) functions, a
requirement contained in the FAA Emergency Operations Plan. The essential
functions project resulted in briefing materials used to enhance discussions in
the FAA emergency operations planning meeting in December 1994. Additionally,
the lessons learned from that first series of exercises (1992-1994), and those
that will be derived from future exercise series, as well as real world
experiences, will be captured, integrated and prioritized as part of a
continuing process to refine inputs and improvements to appropriate operational
plans.

                                      2-23

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      Supporting all aspects of Titan's task performance are program management
activities which include monthly ACTIVITY REPORTS and regular (weekly) meetings
with the Contracting Officer's Technical Representative (COTR). The monthly
letter report describes the progress of each task order, related tasks, and a
breakdown of current and projected expenditures.

      Our confidence for successfully completing the requirements of this SOW
comes from a number of factors. Our team is well trained and knowledgeable. Most
importantly, the individuals have vast experience in supporting many civil and
military D/A's in exercise programs over the last 12 years. This experience is
especially prevalent in the NSEP and all-hazards/all-risk environments. The key
members of our project team are the same professionals currently supporting FAA
requirements. Our proposed Project Manager, currently supporting FAA, has over
30 years of planning and operational experience. Over 100 staff-years of
combined civil/military exercise and FAA support experience in represented by
the corporate team.

                                      2-24
<PAGE>

                                                                    [LOGO] TITAN

2.3 UNDERSTANDING THE EVALUATION CRITERIA

      Three facts stand out in Titan's commitment to provide continued superior
technical support. The prime factor which separates our team from other
potential responders is relevant experience. We have the background and
experience to perform the tasks contained in this procurement. This claim is
made as a result of our performance on the current procurement and on other
projects. Secondly, we want continuity and are pleased to commit the same key
personnel who were successful in supporting the FAA's Emergency Operations
Program during the current contract. This reinforces our point about relevant
experience. Our team members possess the maturity, familiarity, and experience,
as well as the operational continuity, to bring "value added" to the FAA's
Emergency Operations Program. Team contributions can be expected to remain
available to Operations Center Managers at each of the exercise sites. Thirdly,
Titan personnel dedicated to this project possess the critical specific
technical knowledge and abilities, especially in the areas of governmental
response plans, emergency operations, and crisis management. In sum, we bring a
wealth of experience, knowledge, ability, and team continuity. The remainder of
this section provides more detail on our qualifications.

2.3.1 RELEVANT EXPERIENCE (CRITERION 1) (REFERENCE PARAGRAPH SO-L-5.1.1)

      We have been building an experience base for over 12 years in providing
planning, training, exercise, and evaluation support to most of the Federal
Government civil and military D/As, assisting them in preparation for, response
to, and recovery from national security emergencies and natural and
technological disasters in the all-hazards/all-risk environment.

                                      2-25

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

While there are numerous examples of Titan's ability to satisfy this Criterion
we have included here brief summaries, in chronological order, of the most
meaningful to this procurement.

      -     From 1983 to 1988, and again from 1992 until the present, Titan has
            provided continuous support to FEMA and other civil D/As in the
            planning, conduct, evaluation, and assessment of emergency
            management team exercises and operations. In one subset of this
            effort we are supporting the INS in preparation for a mass
            immigration emergency. We are assisting the INS in the development
            of an Incident Annex for the Mass Immigration Emergency Plan (MIEP)
            as part of the FRP and are planning an exercise of the INS Mass
            Immigration Emergency Plan.

      -     From 1986 until 1992, Titan also provided technical support to the
            Joint Chiefs of Staff (JCS) Exercise Evaluation Program which
            included support to JCS-sponsored command and control (C2) and
            Command Post Exercises (CPXs).

      -     Since 1988, Titan has assisted FEMA in implementing the NSEP program
            and provided a full range of training services to almost all Federal
            D/As. Titan was responsible for indoctrinating and preparing members
            of the national and regional Emergency Management Teams (EMTs). As
            the world changed over the last few years, this program and Titan
            support has evolved into providing support to FEMA as it relates to
            the FRP and the training of ERTs. In addition, Titan assisted FEMA
            in the development of the ERT-N concept which is designed to
            identify, train, and then deploy a cadre of Headquarters personnel
            to a location near a disaster in situations in which the scope of
            the disaster has or will overwhelm state and local resources.

                                      2-26
<PAGE>

                                                                    [LOGO] TITAN

      -     From 1990 to 1994, Titan assisted FEMA in providing operational
            planning support to the NSEP program and the Federal Government's
            Continuity of Government (COG) program. Again, as with previous
            programs, this program evolved into providing support to FEMA, and
            the rest of the Federal D/A's, in a total review and integration
            effort for comprehensive risk-based all-hazards preparedness,
            response, and recovery planning as part of the FRP. We served as the
            Executive Secretariat to the Interagency Planning Group for the FRP
            providing meeting support to the annex planning leaders. In
            addition, we also wrote, in support of FEMA, the Northridge
            Earthquake Summary for the FRP's CDRG.

      -     Since 1992, Titan, as the exercise support contractor for the
            Chemical Stockpile Emergency Preparedness Program (CSEPP), has
            assisted the Department of the Army and FEMA in a joint effort to
            increase the capability of chemical surety installations and the
            surrounding communities to deal with a chemical accident or
            incident. The joint effort has taken place at each of the eight U.S.
            storage sites, to include relating them to the National (Oil and
            Hazardous Substances Pollution) Contingency Plan (NCP). The above
            examples are discussed more fully in Section 4, which details
            related experience.

      -     Titan also has provided exercise and planning support to the FAA
            Emergency Operations Program. We have assisted the FAA and its
            Emergency Operations Branch in the planning, conduct, and evaluation
            of a series (1992-1994) of nine regional catastrophic disaster
            response exercises. These exercises focused on the actions necessary
            to maintain the safety of the airways, personnel, and facilities and
            the reconstitution of the NAS. Primarily, these exercises were
            designed to

                                      2-27

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

            exercise FAA response procedures, both internally and externally.
            Internally, these exercises were designed to present a scenario
            situation in which the level of damage was more than could be
            handled by internal FAA resources. The objective was to "stretch the
            envelope" and expose the regional teams to the need to look outside
            the FAA for satisfaction of recovery requirements. From this
            perspective, all exercises were designed to familiarize exercise
            participants with the FRP and ESF #1 (Transportation). In the case
            of the Great Lakes Region (AGL) technological disaster exercise, the
            NCP was highlighted, as well as the reporting infrastructure and
            processes (not only internal to the FAA but outside as well). One
            important aspect that evolved over this series of exercises was the
            real-time interface between the FAA Headquarters and the regional
            participants during exercise play. This interface took place via
            teleconferencing sessions with a focus on information flow provided
            in discussions about SITREP contents. The lessons learned by and the
            conversations between the headquarters and regional groups resulted
            in a better appreciation of the roles and responsibilities of each.
            Critiques received in the post-exercise feedback process from all
            nine regions indicate that this first series of exercises was a
            success.

      -     In support of one of the planning requirements of the Emergency
            Operations Plan, Titan assisted ADA-20 and Flight Standards Service
            (AFS) in developing a prototype approach to identify and define the
            essential (emergency) functions of the FAA. This work was
            accomplished in December 1994. The effort was particularly important
            since one of the primary lessons learned from the first series of
            exercises was the challenge of information management and the
            necessity to: define essential (emergency) functions; specify the
            information requirements

                                      2-28
<PAGE>

                                                                    [LOGO] TITAN

            to support these functions; pre-position the information
            requirements in the field BEFORE an emergency situation develops.

      Overall, the Titan team has extensive planning, training, exercise, and
evaluation experience in all aspects of emergency operations. That experience
includes national security emergencies, and natural or technological disasters.
We clearly have the ability to satisfy the requirements of Criterion 1.

2.3.2 KEY PERSONNEL (CRITERION 2) (REFERENCE PARAGRAPH SO-L-5.1.2)

      The key attributes of Titan personnel in meeting Criterion 2 are
knowledge, motivation, ability, experience, and continuity. The same personnel
who are currently providing support to the FAA's Emergency Operations Program
are proposed again. The only difference is that they will start fresh with the
benefit of the last three years of relevant experience. Mr. John Chambers has
been the Project Manager for the last 18 months, and is proposed again as the
Project Manager for this procurement. Mr. Colin Harding has been the
facilitator/moderator for the entire series of the nine regional catastrophic
disaster response exercises and will continue in that role. Finally, Mr. Paul
Carlson, Executive Vice-President for Titan Systems Group, has provided the
corporate link between Titan and ADA-20 and will continue to do so.

      All three individuals have extensive personal experience in providing
planning, training, exercise, and evaluation support to emergency preparedness
operations. Mr. Chambers, in addition to being the current Project Manager for
this project, has also served as a technical support Program Manager for two
national-level programs related to national security

                                      2-29

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

emergencies. Mr. Harding was previously the Program Manager for the FEMA
Exercise Program and has also been a Program Manager for two national-level
programs also related to national security emergencies. Mr. Carlson has served
as Program Manager for both the FEMA Exercise Program and for the FEMA
Operations Support Program which provided training to the national and regional
EMTs and he has directly supported the FAA Exercise program effort.

2.3.3 SPECIFIC TECHNICAL KNOWLEDGE AND ABILITIES (CRITERION 3) (REFERENCE
      PARAGRAPH SO-L-5.1.3)

      The depth of specific technical knowledge and abilities is a direct
product of the relevant experience and key personnel profiled in the two
previous sections.

      Titan personnel were directly involved in drafting the original FRP, which
was taken from the National Earthquake Plan. In addition, we have used both the
FRP and the FAA's Emergency Operations Plan as primary source documents for
structuring all of the table-tops conducted as part of the recent series of
catastrophic disaster response exercises. Finally, to further substantiate our
understanding of Criterion 3, we are currently assisting FEMA in the training of
response teams on all aspects of the FRP.

      One of the outcomes of the latest exercise series was a better
understanding of the FAA's Emergency Operations Plan and the FRP and how the
plans complement each other before, during, and after an emergency situation.
More specifically, a clearer understanding was achieved regarding the linkage
between the operational elements of the FAA's CRS (such as exists between the
regional and headquarters CRSGs/CRWGs), the linkage between these groups

                                      2-30
<PAGE>

                                                                    [LOGO] TITAN

and the DOT Emergency Operations System before the activation of the FRP, and
the linkages that are created between these groups and ESF #1 (Transportation)
after FRP activation.

      An additional important outcome of the exercise series was a better
appreciation, of the problems that face responders at the local, State, and
Federal levels as they reacted to a major disaster situation. Recent experiences
with Hurricane ANDREW, the Midwest floods, and the Northridge Earthquake have
also highlighted some of these problems. This is an area that we understand very
well as Titan was chartered to develop after-action reports on two of these
disasters, Hurricane ANDREW and the Northridge Earthquake. While not inclusive,
the following discussion provides a brief insight into the broader overall
disaster response problem and relates examples of the types of subjects
responders are concerned with at virtually all levels, particularly as relates
to a major disaster.

      PROBLEMS IN DISASTER RESPONSE. Disaster response can vary by intensity and
extent of the disaster. The American Red Cross responds to approximately 40,000
"disasters" every year. Some of these may be declared as major emergencies or
disasters by local governments. States may declare 100-120 as major disasters;
of which the Federal Government may issue Presidential declarations for 40-50.
The Federal Government thus responds to one-tenth of one percent of the
disasters that private organizations do and half as many as States do, and half
as many as States do. The range of "disasters" can be everything from a flooded
basement to a major regional urban earthquake. Problems faced by emergency
responders will vary to type, extent, and duration of the response. Often the
problems faced in the emergency response phase have solutions in the
preparedness, recovery, and/or mitigation phases of the disaster. Exhibit 2.3-1
depicts some of the more prevalent problems, grouped into four major categories,
faced

                                      2-31

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

by local, State, and Federal responders that Titan has identified based upon our
emergency preparedness-related exercise, training, and planning support.

          EXHIBIT 2.3-1. EXAMPLES OF DAMAGE RESPONSE SUBJECTS/PROBLEMS

================================================================================
                    COMMAND, CONTROL AND COMMUNICATIONS (C3)
--------------------------------------------------------------------------------
Warning                       -  Was there any? Will there be any for possible
                                 future events? What's next?
--------------------------------------------------------------------------------
Damage Assessment             -  What was lost? What remains?
--------------------------------------------------------------------------------
Situation Assessment          -  What is overall assessment of ability to
                                 recover and operate?
--------------------------------------------------------------------------------
Communications Status         -  What is the status? Who can be contacted? What
                                 can be repaired?
--------------------------------------------------------------------------------
Lines of Responsibility       -  Are they clear? Who to look for help or to
                                 provide help?
--------------------------------------------------------------------------------
Information Management        -  How and who assures that the appropriate
                                 information is received by the right source at
                                 the right time?
--------------------------------------------------------------------------------
                             INFRASTRUCTURE SUPPORT
--------------------------------------------------------------------------------
Asset Availability            -  What is the condition of the electric grid,
                                 roads, railroads, airports, radio, and
                                 television, etc.?
--------------------------------------------------------------------------------
Law Enforcement               -  Is there sufficient police to assure public
                                 safety?
--------------------------------------------------------------------------------
Medical                       -  What is the condition of local hospitals and
                                 staff?
--------------------------------------------------------------------------------
                                  LIFE SUPPORT
--------------------------------------------------------------------------------
General Condition             -  Is there sufficient food, water, shelter,
                                 clothing, etc? If not, where to look for
                                 immediate relief?
--------------------------------------------------------------------------------
Resource Availability         -  Are the processes and procedures for dealing
                                 with relief organizations adequate? Are
                                 controls required to assure that relief
                                 assistance does not become a burden?
--------------------------------------------------------------------------------
Locator System                -  Has one been established?
--------------------------------------------------------------------------------
                                PUBLIC RELATIONS
--------------------------------------------------------------------------------
Media Capability              -  What radio and television systems are available
                                 to address the public? Will the networks make
                                 time available?
--------------------------------------------------------------------------------
Media Relations               -  How should the media representatives be
                                 handled? What access, within the disaster area,
                                 should be allowable?
--------------------------------------------------------------------------------
General                       -  Is there a problem with languages? Can all
                                 areas within the disaster area receive and
                                 understand appropriate instruction?
--------------------------------------------------------------------------------
NOTE: The above grouping of topics was selected only as a means of illustrating
specifics under potential broader categories. Also, no implied prioritizing
should be drawn from the listings as each disaster will influence the order of
addressal.
================================================================================

                                      2-32
<PAGE>

                                                                    [LOGO] TITAN

      DOCUMENT PRODUCTION. In support of FAA exercise program, we have
consistently produced high quality documentation in a concise, timely, and
accurate manner. The documents included Moderator's Handbook, Group Leader's
Handbooks, Players' Handbooks, and Response Cell Handbooks. All materials were
designed to be clear, concise, and user friendly. Also included was a briefing
to the participants which defined the objectives and rules for the exercises.
One key to success in this area was full coordination with all the exercise
planners at both FAA and the regions. Coordination with the regional emergency
operations personnel proved to be critical in the pre-exercise phase. In
addition to reviewing and understanding the exercise materials, time was spent
before each exercise with the Group Leader (usually the Deputy Regional
Administrator), and the Response Cells. At the bottom line, experience has shown
that quality document development and tight coordination is essential to ensure
that support is always there for successful exercise completion.

      As we have successfully performed on the current FAA support contract, we
have internalized several important lessons. We have carefully studied customer
requirements and paid close attention to comments related to our performance. We
have found it imperative that contractor support remain virtually invisible to
those being exercised. This lesson, when it is applied, helps to assure that all
actions and decisions made by the exercise group remain their responsibility.
This is key because the success of the exercise is dependent on participant
commitments -- especially in post-exercise corrective actions which take place
as a result of their own management actions.

                                      2-33

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

2.4 EXERCISE SUPPORT REQUIREMENTS

2.4.1 GENERAL

      The SOW calls for assistance to the FAA in providing exercise support for
each of three exercise categories (regions only, headquarters only, combination
of headquarters and regions) under three different scenarios conditions
(National Security Emergencies, Catastrophic Natural and Technological
Disasters, Command and Control Exercises) in two operational environments
Internal Exercises, Task I, and External Exercises, Task II. While a complete
discussion of support requirements for each exercise task is contained in
Sections 2.5 and 2.6, it is the purpose of this section to address the
methodologies used in designing, developing, executing, and evaluating
exercises. We believe the description of these exercise details will help
facilitate reader understanding of more specific materials addressed in later
sections.

2.4.2 EXERCISE DESIGN

      The design of an exercise requires not only knowledge of the mechanics of
putting on an exercise, but also an understanding of the emergency measures to
be executed by the FAA in response to either national security emergencies or
domestic emergencies (catastrophic natural or technological disasters). To this
end, the provision of appropriate exercise support throughout an exercise cycle
depends on constant interaction with the FAA Emergency Operations Staff
(ADA-20), operations centers managers, other appropriate officials within the
FAA's regional emergency management infrastructure, the participating Federal
D/As, and, in some cases, state and local emergency management officials.
Exhibit 2.4-1 presents a typical exercise cycle

                                      2-34
<PAGE>

                                                                    [LOGO] TITAN

overview and identifies key support documentation and activities. The exercise
cycle is divided into three distinct phases: pre-exercise, exercise conduct, and
post-exercise. Each phase has its special requirements and products and,
depending on the scope of the exercise being planned, a reasonable time
limitation to complete. (Note that Exhibits 2.5-9 and 2.6-2 provide specific
examples of detailed steps which take place within each exercise phase.)

                      EXHIBIT 2.4-1 TYPICAL EXERCISE CYCLE

<TABLE>
<CAPTION>

      POST-EXERCISE                                                                     PRE-EXERCISE
         PHASE                                                                              PHASE
EXAMPLES OF KEY ACTIONS                                                            EXAMPLES OF DOCUMENTATION
<S>                             <C>                                                <C>
                                      EXERCISE COMPLEXITY
- Report first impressions                   AND                                   - Concept and Objectives
- Compile data and other          OPERATIONAL REALISM VARIES                       - Work Plan
  forms of feedback                                                                - EXPLAN
- Review and analyze data       Table-Top         Functional         Full-Scale    - Scenario
- Develop documentation         Exercise  < --- >  Exercise  < --- >  Exercise     - Master Scenario Events List
  - Evaluation Report                                                                (MSEL)
  - After-Action Report                 - Objectives                               - Implementers
- Input to System of                    - Resources Available                      - Players' Handbook
  Lessons Learned                       - Scope                                    - Control Staff Instructions
                                        - Participation                              (COSIN)
                                        - Training/Orientation Needs               - Evaluation Plan
                                        - Logistics Support                          (EVALPLAN)
                                        - Administration                           - Evaluation Instruments
                                        - Documentation                            - Orientation/Training
                                                                                     Materials

                                        EXERCISE CONDUCT
                                             PHASE
                                         MAIN ACTIVITIES

                                        - STARTEX
                                        - Exercise Control
                                          --Balance "free play"
                                            with overall exercise
                                            objectives
                                        - Collect Data
                                        - Player "Hot Wash"
                                        - Conduct Critique(s)
                                        - ENDEX

</TABLE>

                                      2-35

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      The requirements for supporting exercises varies with complexity and
operational realism. Key factors include exercise objectives, resources
available, scope, participation, training needs, logistics, administration, and
documentation. Table-top exercises are the least complex; functional exercises
require more planning and resources; full-scale exercises are the most
comprehensive. The Titan approach to exercise design and development includes
all the elements of the exercise cycle, with the principle differences being the
level of detail provided in the documentation, the complexity of design, factors
to consider in conduct, post-exercise evaluation support, the amount of time
required to complete one exercise cycle, and the relationship of a single
exercise to a larger master plan of multiple exercises.

      An overview of the Titan approach to exercise design is shown in Exhibit
2.4-2.

                     EXHIBIT 2.4-2 EXERCISE DESIGN APPROACH

<TABLE>
<S>                                     <C>                           <C>                 <C>
-----------------------------------------------------------------------------------------------------------------------

    ------------------------------------            -----------------------------
           PROGRAM MANAGEMENT                                 Exercise
     Refers to all-sources in exercise       |-----       Work Plan/Schedule
              development                    |      -----------------------------
      - Operations Plan                      |                   |
      - Strategic or Master Plan (i.e.,      |      -----------------------------               ---------------------
        TEMP - Test and Evaluation Master    |         Concept and Objectives                            FAA
        Plan)                           -----|-----           Document              ----------        Exercise
 |-   - Supporting Plans                     |      -----------------------------                    Objectives
 |    - Operating Procedures and             |               Briefing(s)                        ---------------------
 |      Checklists                           |      -----------------------------
 |    - Operational Experience (Lessons      |                   |
 |      Learned)                             |      -----------------------------
 |      - Actual Disasters                   |              Exercise Plan
 |      - Previous Exercises                 |-----           (EXPLAN)
 |  -----------------------------------             -----------------------------
 |                                                               |
 |                                                               |
 |               --------------------------------------------------------------------------------------
 |               |                             |                            |                         |
 |     ---------------------          ---------------------           ---------------       ---------------------
 |      Controller Services                 EVALPLAN                     Players'                  Player
 |     ---------------------          -----------------------            Handbook           Orientation/Training
 |       MSEL/Implementers             |    Data Collection          ---------------             Materials
 |     ---------------------           |         Forms                      |              ---------------------
 |        COSIN/Response               |   ---------------------            |                         |
 |         Cell Handbook               |         Questionnaire              |                         |
 |     ---------------------           |     ---------------------          |                         |
 |              |                      |           Critique Forms           |                         |
 |              |                      |       ---------------------        |                         |
 |              |                      |                                    |                         |
 |              |                      |                                    |                         |
 |        --------------------------------------------                --------------------------------------------
 |               Controller & Evaluator Training                               Player Orientation/Training
 |        --------------------------------------------                --------------------------------------------
 |                                         |                                      |
 |                                         |                                      |
 |                                         |                                      |
 |                         -------------------------------------------------------------------
 |                                       Exercise Play, Control, and Evaluation
 |                         -------------------------------------------------------------------
 |                                              |                                 |
 |                                              |                                 |
 |                                              |                                 |
 |        --------------------------------------------                ---------------
 |--------             After-Action Report                               Critique
 |        --------------------------------------------                ---------------
 |                                              |                                 |
 |                                              |                                 |
 |                                              |                                 |
 |        --------------------------------------------                            |
 |                      Remedial Actions                                          |
 |--------                   Program                   ---------------------------|
          --------------------------------------------

-----------------------------------------------------------------------------------------------------------------------
</TABLE>

                                      2-36
<PAGE>

                                                                    [LOGO] TITAN

2.4.3 EXERCISE PREPARATION

      Overall, our approach is characterized by rigorous referencing of all
documentation and maximum use of lessons learned and techniques from previous
exercises, real world experiences, and other training events. We will work
closely with the FAA Project Officer and designated points-of-contact to ensure
all exercise requirements are satisfied. Our approach for the development of
exercise materials is described in the following paragraphs. Importantly,
however, FAA exercise objectives represent the major input during exercise
design and preparation.

      EXERCISE WORK PLAN/SCHEDULE. Immediately upon receipt of the task
assignment, we will begin development of a draft Exercise Work Plan that
provides a road map and schedule for all aspects of preparation for the
exercise. This schedule will be based on the notional task assignment planning
schedule shown in Exhibit 2.4-3, but actual tasking will provide additional
detail.

          EXHIBIT 2.4-3 NOTIONAL TASK ASSIGNMENT AND PLANNING SCHEDULE

<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------------

                                     WORK PLAN SCHEDULE
                                                                                       |
                                                                1995                   |   1996
                                            J   F   M   A   M   J  J  A   S   O   N  D | J   F   M
------------------------------------------------------------------------------------------------------
            PRODUCTS                                                                   |
------------------------------------------------------------------------------------------------------
<S>                                        <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> |<C> <C> <C>
WORK PLAN                                   x_x
------------------------------------------------------------------------------------------------------
CONCEPT AND OBJECTIVES DOCUMENT             x_x_X
------------------------------------------------------------------------------------------------------
EXPLAN                                        __________x___X
------------------------------------------------------------------------------------------------------
SCENARIO/SECURITY PLAN                        __________________x___X
------------------------------------------------------------------------------------------------------
COSIN/MSEL/IMPLEMENTERS                                  ___________x___X
------------------------------------------------------------------------------------------------------
CONTROLLER'S HANDBOOK                                      _____________x___X
------------------------------------------------------------------------------------------------------
EVALUATION PLAN (EVALPLAN)                                 _____________x___X
------------------------------------------------------------------------------------------------------
TRAINING AND EXERCISE MATERIALS                            _____________x___X
------------------------------------------------------------------------------------------------------
PLAYER TRAINING (WINDOW)                                                    ____
------------------------------------------------------------------------------------------------------
CONTROLLER/EVALUATOR TRAINING (WINDOW)                                      ____
------------------------------------------------------------------------------------------------------
CONDUCT EXERCISE                                                               X
------------------------------------------------------------------------------------------------------
FIRST IMPRESSIONS REPORTS                                                          X
------------------------------------------------------------------------------------------------------
AFTER-ACTION/CRITIQUE REPORTS                                                  __________x___X
------------------------------------------------------------------------------------------------------

LEGEND:   x DRAFT
          X FINAL

------------------------------------------------------------------------------------------------------
</TABLE>

                                      2-37

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      Within 10 days of tasking, we will submit the draft work plan to the FAA
Project Officer for review and approval. The work plan will include exercise
planning milestones of the key events shown in Exhibit 2.4-4.

                            EXHIBIT 2.4-4 KEY EVENTS

================================================================================
-     Schedule of exercise planning and coordination meetings

-     Designation of points of contact for all participating D/As

-     Definition of roles and responsibilities

-     Agreement on the concept and objectives for the exercise

-     Identification of players and participants

-     Selection of exercise site

-     Selection of controllers evaluators, and support staff

-     Completion dates (and coordination schedule) for exercise documentation
      -     Concept and Objectives document
      -     EXPLAN
      -     Scenario
      -     MSEL
      -     Implementers
      -     Players' Handbook
      -     Controller's Handbook
      -     EVALPLAN
      -     Training and exercise materials (to include "School Solution" papers
            if required)

-     Definition of evaluation products (critique, reports)

-     Concept and dates for pre-exercise player and controller/evaluator
      training

-     Outline of public information plan

-     Definitions of exercise site preparation and logistics

-     Schedule of completion dates (and coordination schedule) for post-exercise
      reports
================================================================================

      CONCEPT AND OBJECTIVES DOCUMENT. Upon approval of the work plan, we
propose a joint meeting with exercise planners from the participating entities.
To facilitate development and coordination of the document, we will employ the
following approach:

                                      2-38
<PAGE>

                                                                    [LOGO] TITAN

      -     Based on guidance from the FAA Project Officer, we will prepare a
            "strawman" draft (and briefing) for use at the initial meeting,
            outlining the proposed exercise purpose, scope, objectives, and
            suggested issues.

      -     We will then prepare a coordination draft for review.

      -     Based on comments received, we will prepare the documentation in
            final form and submit it to the FAA Project Officer for
            distribution, as appropriate.

      The Concept and Objectives document will serve as the principal source for
further exercise planning and will contain information concerning: purpose,
scope, and overall objectives of the exercise; concept and procedures for
exercise play; timeframe for exercise play; time plan for conduct of the
exercise; general description of the exercise scenario; participants; procedures
for control and evaluation of the exercise; description of exercise materials;
exercise site; and administrative/logistic support concept. An essential part of
this effort is development of a Concept and Objectives briefing that will
facilitate coordination at both the national and regional levels.

      EXERCISE PLAN (EXPLAN). Based on the approved Concept and Objectives
document and any additional guidance from the FAA Project Officer, Titan will
next prepare the EXPLAN, which is the principal guiding document for the conduct
of the exercise. In developing the EXPLAN we will draw on our substantial
operational experience and our extensive exercise planning experience. EXPLAN
development will typically follow the pattern described in the following steps:

      -     STEP 1. Review/analyze exercise and operational planning documents,
            comments, after-action reports, and lessons learned from all
            sources.

                                      2-39

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      -     STEP 2. Meet with the FAA project staff and other FAA
            representatives, as available, to develop the detailed exercise
            objectives and the planning assumptions that impact exercise
            execution.

      -     STEP 3. Based on the type of scenario to be played and input from
            the meetings, develop the scenario outline for the disaster or
            national security emergency situation.

      -     STEP 4. Based on the preceding steps and the concept for exercise
            play, complete a draft EXPLAN. Coordinate it with the exercise
            planners. Support the FAA Project Officer in conducting an EXPLAN
            coordination conference, if necessary.

      -     STEP 5. Incorporate comments, as appropriate, and publish the final
            EXPLAN. Ensure that the process is sufficiently flexible so that it
            allows for incorporation of last-minute changes (as happens
            frequently).

      -     STEP 6. Publish changes to the final EXPLAN, if required. Should
            this be necessary, assist the FAA Project Officer in distributing
            the changes as expeditiously as possible.

      Using the schedule developed in the work plan, the EXPLAN will provide the
most important information and assign responsibilities for each step in
planning, conducting, controlling, evaluating, and supporting the exercise.
Included in the EXPLAN will be coordinating instructions and a list of points of
contact for all participants. An example of the contents of an EXPLAN for a
full-scale exercise is shown in Exhibit 2.4-5.

      Delivery of an approved EXPLAN will be followed by coordinating the tasks
set forth in the exercise planning schedule and completing the other
documentation required to support

                                      2-40
<PAGE>

                                                                    [LOGO] TITAN

the exercise (e.g., COSIN/controller services, MSEL, Implementers, Players'
Handbook, and EVALPLAN).

                      EXHIBIT 2.4-5 NOTIONAL EXPLAN OUTLINE

================================================================================

                 BASIC PLAN                           ANNEXES
                 ----------                           -------

  1.0 General                               A. Acronyms/Abbreviations
  2.0 Concept and Objectives                B. Scenario Outline
  3.0 Conduct and Control of the Exercise   C. Levels of Participation
  4.0 Exercise Evaluation                   D. Exercise Procedures
  5.0 Planning Schedule                     E. Communications
  6.0 Responsibilities                      F. Public Affairs
  7.0 Communications                        G. EVALPLAN
  8.0 Security                              H. Security Plan
  9.0 Public Affairs Guidance               I. Planning/Administrative Checklist
 10.0 Administrative/Logistic Arrangements  Z. Distribution
 11.0 Post-Exercise Reports
 12.0 Coordinating Instructions
 13.0 References
================================================================================

      Our approach for development of these items will involve a step-by-step
process that provides for:

      -     Research and analysis of available supporting data and reference
            material, in line with the exercise goals and objectives

      -     Continuing dialogue with the FAA Project Officer and designated
            points-of-contact

      -     Preparation of a coordination draft of each document

      -     Incorporation of comments and publication of a final version in
            accordance with the exercise planning schedule.

                                      2-41

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      EXERCISE SCENARIO. The Exercise Scenario provides all exercise
participants with a general situation overview and sets the stage for the start
of the exercise (STARTEX). The scenario is based on the situation and includes a
brief description of conditions. For example, an earthquake scenario would
include initial reports of damage that responders would be expected to have, a
chronology of significant events, response actions that will have occurred prior
to STARTEX, and the overall situation at STARTEX. A key aspect of the scenario
is that it need to be constructed in a way to logically support accomplishment
of the exercise objectives. The scenario may be published separately or
incorporated into selected documentation.

      MSEL. MSEL development is based on the exercise objectives and exercise
scenario in accordance with the themes and issues to be played. The MSEL
provides a complete listing of events or actions to be injected into player
channels during the exercise. The development of this list is based on input
from FAA and any other participating exercise planners, results from previous
exercises, actual experiences, and other sources. The events are listed in
chronological sequence, based on the exact date and time the MSEL event is to be
injected into exercise play. For large, complex exercises MSEL development can
require weeks of preparation. A major part of MSEL preparation is the
consolidation of all inputs, reconciliation of any conflicts, and the creation
of additional MSEL items to satisfy exercise objectives. Development and
distribution of the MSEL should be strictly controlled, with access limited to
exercise planners, controllers, and evaluators only. Procedures should be
established to preclude exercise players and others who have no need to know
from having access to this list.

      IMPLEMENTERS. Implementers are often referred to as "messages" by some
exercise design specialists. Implementers provide the means to transmit
realistically the MSEL events

                                      2-42
<PAGE>

                                                                    [LOGO] TITAN

or activities to the players to stimulate or cause the players to take action or
implement planned policies or procedures. The exercise implementers are the
actual messages, memoranda, letters, news reports, FAXs, telephone calls, etc.,
that the players receive from exercise controllers based on the schedule
established by the MSEL. Implementers are developed in coordination with the FAA
and any emergency planners who assisted in the preparation of the MSEL. Our
major role will be to develop and collect all implementers, review them for
consistency and completeness, arrange them in proper sequence, and make copies,
as necessary, for multiple injection points. The implementers are injected into
play at the prescribed time and location by the exercise controllers. As with
the MSEL, access to the implementers prior to the time of injection should be
avoided. Procedures should be established to preclude exercise players and
others who have no need to know from having access to these items.

      PLAYERS' HANDBOOK. The Players' Handbook provides players a guide covering
their responsibilities in the exercise and information on the rules and
procedures that govern exercise play. These data reflect the contents of the
EXPLAN and, for ease of development, will be included as an annex, along with
logistics information relative to the exercise site. The Players' Handbook will
be completed in conjunction with the EXPLAN and distributed to individuals
selected as players in the exercise. For large exercises it will be required
reading prior to exercise conduct and will be used as a reference document
during player training and during exercise play.

      COSIN. The COSIN provides guidance concerning procedures and
responsibilities for personnel performing exercise control services. This
document will describe the process for introduction of the disaster situation
and the issue(s) to be addressed, facilitating and tracking

                                      2-43

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

exercise progress, maintaining the MSEL and injecting implementers, answering
player questions, and documenting the results of the exercise. It also provides
useful information for evaluators and support personnel on how their activities
complement and relate to exercise control. In addition, emergency "stop action"
procedures are included should an actual operational emergency occur during the
exercise. Copies of the COSIN will be distributed to selected personnel prior to
the exercise; however, procedures should be established to preclude exercise
players and others who have no need to know from having access to this document.

      EVALPLAN. The EVALPLAN describes the overall critique process to be
followed in the exercise. It provides guidelines for evaluators concerning
procedures for observing exercise play, completion of data collection forms,
administration of player evaluation sheets or questionnaires, and conduct of the
exercise critique. Data collection forms will be designed to make sure that each
exercise objective is addressed; this is also true for the design of the player
evaluation sheets. The EVALPLAN also provides formats and schedules for
completion of post-exercise reports (i.e., the First Impressions Report and the
final Exercise Critique or Evaluation Report). (NOTE: for purposes of this
discussion, the term "evaluator" is synonymous with "data collector." In larger
exercises, data collection can be so comprehensive [as in Command and Control
exercises] that data collectors are specialists and have no role in the
provision of controller or evaluation services.)

      As with the Controller's Handbook, copies of the EVALPLAN will be
distributed to selected personnel prior to the exercise; however, its contents
should not be divulged to exercise players and others who have no need to know.

                                      2-44
<PAGE>

                                                                    [LOGO] TITAN

      PLAYER TRAINING. In many past exercises, a significant number of
participants felt the exercise would have been more beneficial if they had
received more prior training, both in their substantive emergency response
procedures and in exercise participation. Part of this training need can be met
through the use of table-tops before a headquarters or FSE exercise. However,
many feel that training immediately before the exercise, preferably at the
exercise site, is most helpful. Consequently, the development of "school
solution" papers to support table-top exercises is an option which can be used
to guide and direct personnel toward the processes, procedures, and policy
decisions they will most likely face in a higher level exercise at the
headquarters level or during the FSE. As desired by the FAA Project Officer,
Titan is prepared to develop the training materials (e.g., briefing charts,
worksheets, and "school solution" papers), and conduct player training as is
needed and appropriate. As with the recently completed exercise series, Titan
found it extremely valuable to provide orientation and training for all exercise
participants prior to STARTEX.

      CONTROLLER/EVALUATOR TRAINING. Once the COSIN and EVALPLAN have been
completed, training sessions for personnel designated as controllers and
evaluators should be scheduled. Such sessions can cover: the exercise overview
briefing, including the scenario, as will be presented to the players; the
exercise objectives; the contents of the COSIN and the EVALPLAN; exercise
control and evaluation responsibilities and procedures; use of data collection
forms; and a rehearsal and walk-through of STARTEX and exercise procedures. Once
again, as desired by the FAA Project Officer, Titan is prepared to develop
training materials in any form and at any level of detail and conduct such
controller/evaluator training as is needed and appropriate.

                                      2-45

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

2.4.4 EXERCISE CONDUCT

      During all exercises, Titan personnel will support the Exercise Director
and the control/evaluation staff in all aspects of conducting the exercise. Our
staff members are extremely well qualified to serve either as controllers or
evaluators. We have learned from our experience that, during the conduct of an
exercise, activities generated by the MSEL and implementers do not always
progress as planned. Two conditions often develop. First, there are sometimes
lulls or periods of inactivity. Second, players may tend to drive exercise play
in unusual or unplanned directions which stray from exercise objectives. For
these occasions, exercise control personnel will have been provided "extra" or
"hip-pocket" implementers which can be injected so as to put the exercise back
on track. Implementers can also serve to make sure each player stays fully
engaged so that the exercise experience becomes meaningful and rewarding. We
will also assist in development and implementation of procedures and the
collection of message players' logs and other items generated by exercise play
for evaluation and reference. In addition, our personnel are prepared to conduct
and/or participate in an informal debrief(s) with controllers and evaluators
immediately after the exercise in order to capture feedback (observations or
perceptions) that may not otherwise link back into the planned data collection
process.

2.4.5 POST-EXERCISE ACTIVITIES

      Post-exercise activities provide a means to analyze the achievement of
exercise objectives and identify areas in which corrective actions should be
taken on policies, plans, procedures, and potential system enhancements relative
to emergency operations. A time-tested approach is to

                                      2-46
<PAGE>

                                                                    [LOGO] TITAN

have each participating entity submit a First Impressions Report within 30 days
after the exercise. The format for such a report includes: a description of
overall performance; results (successes, problems, and unresolved issues); and
recommendations for remedial actions and future exercises.

      Based on the responses in the First Impressions and/or Critique Reports
(as well feedback from evaluator data collection forms, player questionnaires,
and analysis of exercise message traffic), we will develop a draft and final
Critique and/or Evaluation Report that organizes and categorizes the findings
and recommendations resulting from the exercise. The Critique Report is a
principal input to remedial actions. A Remedial Actions Program provides a
process to ensure that deficiencies identified during an exercise are
highlighted and action is being taken to correct them.

      Both the positive and negative findings from the exercise will be fed back
into the training and planning processes to improve emergency plans, appendices,
and standard operating procedures (SOP's). Findings and lessons learned will be
documented for use in future exercises, where potential solutions to
deficiencies can be validated.

      An example of an outline for a critique is shown in Exhibit 2.4-6.

                                      2-47

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                   Exhibit 2.4-6 After-Action Critique Outline

================================================================================

    I.    Executive Summary            IV. Evaluation
          A. General                       A. Overall Assessment
          B. Overall Evaluation            B. Evaluation of Each Objective
          C. Summary Findings              C. Summary of Exercise Critique
                                           D. Analysis of Results
    II.   Introduction
          A. Purpose                   V.  Conclusions and Recommendations
          B. Methodology and Process
          C. Emergency Situation       Annex A: Data Collection Summary
                                       Annex B: Player Questionnaire Summary
    III.  Exercise Overview
          A. Exercise Concept
          B. Exercise Objectives
          C. Emergency Situation

================================================================================

      The Titan team is prepared to provide complete, meaningful, and
substantive exercise products and support to the FAA in this proposed effort.
Our experienced and dedicated professional staff is ready to produce the kind of
quality deserved by this vital FAA Emergency Operations Program.

                                      2-48
<PAGE>

                                                                    [LOGO] TITAN

2.5 TASK I - SUPPORT FOR INTERNAL FAA EXERCISES (REFERENCE SOW PARA 5.2)

      The Titan technical approach to support of internal FAA exercises is based
upon: an understanding of the requirements; our comprehensive experience in
emergency operations, including the FAA, and the conduct of the full spectrum of
training and exercise activities; and our commitment to the benefits which can
be gained by the FAA in operational efficiency and effectiveness toward mission
accomplishment. The remainder of this section focuses on Task I, as illustrated
in Exhibit 2.5-1.

                          Exhibit 2.5-1 TASK I OVERVIEW

<TABLE>
<S>                           <C>                                               <C>
-----------------------------------------------------------------------------------------------------------------------

                              -------------------------------------             -------------------------------------
                                                             SOW                                               SOW
                              INTERNAL FAA EXERCISES                            EXTERNAL FAA EXERCISES
TRAINING AND                                               PARA 5.2                                          PARA 5.3
EXERCISES                       - HQ ONLY                   TASK I                - HQ ONLY                   TASK II
                                - REGIONS ONLY                                    - REGIONS ONLY
                                - COMBINED HQ & REGIONS                           - COMBINED HQ & REGIONS
                              -------------------------------------             -------------------------------------
                                 |                                                      |
- - - - - - - - - - - - - - - - -|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                 |                                                      |
                                 |      ------------------------------------------      |
                                 |                                          SOW         |
                                 |      OTHER TECHNICAL SERVICES                        |
OPERATIONAL PLANNING             |                                        PARA 5.4      |
                                 |----    - OPERATIONS PLANS              TASK III  ----|
                                 |        - ASSOCIATED APPENDICES                       |
                                 |        - SOPs                                        |
                                 |      ------------------------------------------      |
                                 |                                                      |
- - - - - - - - - - - - - - - - -|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                 |                                                      |
                                 |      ------------------------------------------      |
                                 |        - EXERCISE COORDINATION MEETINGS              |
EXERCISE COORDINATION            |        - EXERCISE DOCUMENT REVIEWS                   |
AND INTERFACE PROCESS            |----      - DOT                                   ----|
                                 |          - FEMA                                      |
                                 |          - OTHER D/As                                |
                                 |      ------------------------------------------      |
                                 |                                                      |
- - - - - - - - - - - - - - - - -|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                 |                                                      |
                                 |      ------------------------------------------      |
                                 |                                           SOW        |
                                 |      ACTIVITY REPORTS                                |
PROGRAM OVERSIGHT                |                                         PARA 4.      |
AND CONTROL                      |----    - WORK PLAN                     ACTIVITY  ----|
                                          - WEEKLY COTR STATUS MEETINGS    REPORTS
                                          - MONTHLY LETTER REPORTS
                                        ------------------------------------------

-----------------------------------------------------------------------------------------------------------------------
</TABLE>

                                      2-49

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

2.5.1 UNDERSTANDING

      Task I calls for capabilities which provide the overall FAA Emergency
Operations Program with a full range of options for conducting internal
exercises. Such exercises are needed to enhance individual expertise and to
provide for team building and experience in the CRSGs and CRWGs at FAA, the
regions, and if directed, the Aeronautical and Technical Centers.

      Task I is comprehensive; it requires exercise capability in an
"all-hazards" environment. Supporting technical services need to be rooted in
recent and relevant experience which clearly shows: 1) a clear understanding of
FAA Order 1900.1E and its role as the basic reference for Task I; 2) a record of
success in developing and conducting a wide variety of exercises; 3) a broad
base of experience in the interagency (e.g., FEMA, Military) arena so support to
internal exercises is done with an understanding of the nature and content of
support provided by outside agencies; and 4) the capacity to research and
document special subjects which will be required to underwrite future exercise
design and conduct.

      Task I technical support has its focus on nine primary elements identified
in the SOW. Those elements are shown in Exhibit 2.5-2. Note that the elements of
Task I all translate into actions, considerations, and commitments which take
place at various times in the exercise cycle. The exercise emergency operations
environment is created by scenario development and supported by controller
services; the participants are challenged to seek information and make
assessments.

                                      2-50
<PAGE>

                                                                    [LOGO] TITAN

      EXHIBIT 2.5-2 TASK I - TABLE-TOP TO INTERACTIVE FULL-SCALE EXERCISES

<TABLE>
<CAPTION>
==================================================================================================
                                               Internal Exercise Participants
      Scenarios to          ----------------------------------------------------------------------
      Consist of                                        Headquarters                 Combination
      Simulations:          Regions Only                    Only                  (Hq and Regions)
==================================================================================================
<S>                         <C>                          <C>                       <C>
National Security                                TASK I ELEMENTS
Emergencies                                  (APPLICABLE TO ANY EXERCISE)

                            -  Scenario Development
Catastrophic Natural and    -  Message Preparation
Technological Disasters     -  Controller Services
                            -  Logistics Support
                            -  MSEL Preparation
Command and Control         -  Accumulation and Presentation of Critique Comments
Exercises                   -  Statements of Lessons Learned
                            -  Preparation of Pre-Exercise Participant Information Hand-outs
                            -  Preparation of "School Solution" Papers (for Prescribed Exercises)
==================================================================================================
</TABLE>

      In a table-top exercise, the information provided to the CMC would come
from controller services (e.g., Response Cell) simulating all entities beyond
the scope of the participants. In an interactive full-scale exercise,
information coming to the CMC would come mainly from active play by the FAA
infrastructure (e.g., subordinate and/or supporting organizational elements) and
other response organizations, such as state and local governments. In addition,
the information flow could come over operational communications systems selected
for testing in the exercise. In a large command and control exercise, technical
complexity for exercise support can be high, as FAA leadership seeks to validate
capability in an overall mission-oriented simulation.

      Important aspects of each of the nine Task I elements are summarized in
Exhibit 2.5-3. Each element is discussed further in subsequent paragraphs in the
same sequence as it provided in the SOW.

                                      2-51

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                          EXHIBIT 2.5-3 TASK I ELEMENTS

================================================================================
           ELEMENTS                               IMPORTANT ASPECTS
================================================================================
1. Scenario Development             This action must support FAA leadership by
                                    supporting exercise objectives.
--------------------------------------------------------------------------------
2. Message Preparation              This action requires developing information
                                    inputs (messages, FAXs, telephone calls,
                                    media reports, etc.) which amplify the
                                    scenario and support the flow of the
                                    exercise.
--------------------------------------------------------------------------------
3. Controller Services              People must be handpicked because their
                                    informed actions determine the degree to
                                    which exercise objectives are achieved.
--------------------------------------------------------------------------------
4. Logistics Support                This element embraces everything from paper
                                    clips to supporting White House visitors.
                                    Success in logistics support comes from
                                    flawless coordination, anticipation of needs
                                    drawn from a base of seasoned experience,
                                    and a team who understands the importance of
                                    hard work.
--------------------------------------------------------------------------------
5. Master Scenario Events List      Careful attention is needed because the kind
   (MSEL) Preparation               of situations presented to the players needs
                                    to be credible and relevant.
--------------------------------------------------------------------------------
6. Accumulation and Presentation    Feedback is the lifeline which closes the
   of Critique Comments             communications loop between people; it may
                                    be written or take other forms, but it is
                                    key to the question: "How are we doing?"
--------------------------------------------------------------------------------
7. Statements of Lessons Learned    Succinct statements relevant to real world
                                    operational or previous exercise experience
                                    (and the link to changes to be accomplished
                                    in the future) are the "jewels" of the
                                    exercise world.
--------------------------------------------------------------------------------
8. Preparation of Pre-Exercise      This includes a Players' Handbook which
   Participant Information          provides an overview of the exercise to
   Hand-Outs                        include objectives, time, direction,
                                    location, scenario, etc.
--------------------------------------------------------------------------------
9. Preparation of "School           These papers are basically issue papers
   Solution" Papers for Prescribed  which provide to the participants background
   Exercises                        on issues which may have some relevancy
                                    during the conduct of the exercise.
================================================================================

2.5.1.1 SCENARIO DEVELOPMENT. The pre-exercise phase is crucial to exercise
success, and scenario development is a key element of the early planning
process. Scenario materials define the substantive situations that senior
decision makers and their advisory staffs deal with during the course of
exercise activity. These materials often include separate documentation in large
exercises. For example, a Key Themes document may support early design
decisions; a Subordinate Themes document may provide particular exercise issues
selected to emphasize play in certain functional areas; a MSEL presents
mainstream challenges to players and describes

                                      2-52
<PAGE>

                                                                    [LOGO] TITAN

timing and other aspects of implementation; the implementers or the messages, as
discussed next in subsection 2.5.1.2, expand the MSEL items and contain
detailed, relevant, and plausible scenario information; Player Files will often
be developed to contain exercise materials that are designed to bring emergency
operations exercise players up-to-date on significant events; Time Compression
Briefs may be needed, depending upon the design of a specific exercise (needed
when exercise events skip forward in time to describe to the players those
events that occurred during the skipped period). The Scenario itself provides
information on the pre-exercise period (Background Scenario), as well as the
material for the exercise play (Exercise Scenario). It is designed to introduce
the substantive situation and stimulate exercise play related to the chosen
themes as they link to exercise objectives.

      The Scenario portrays a hypothetical crisis situation which is intended
to: create the operational conditions appropriate to the mission; develop
situations that involve the senior players in the assessment and decision
process; develop complementary situations that keep all substantive players
active in the exercise; provide sufficient information (that would be plausibly
available) to allow exercise players to do their jobs.

      The most important aspect of scenario development is that it needs to
support FAA leadership by keeping a focus on the exercise objectives. To
accomplish this, scenario development must be a cooperative effort among all
planners. As examples of the scenarios developed for the first series of
exercises, Titan, in coordination with ADA-20 and the operations centers
managers, developed four hurricane scenarios, four earthquake scenarios, and one
technological disaster scenario (see Exhibit 2.1-1). In all cases the scenarios
provided the players with plausible situations to which they had to react.

                                      2-53

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

2.5.1.2 MESSAGE PREPARATION. Message preparation is that element of Task I which
refers to the category of support which many exercise specialists refer to as
"implementers" (reference Section 2.4.3). While the MSEL is the planning bridge
between overall objectives and the creation of implementers, implementers
provide the bridge between planning and execution. The challenge to exercise
sponsors is to enhance realism and minimize artificialities, and it is for this
reason that message preparation is so important. The messages are what exercise
players see and react to directly.

      Messages are the exercise implementers, and they take many forms (e.g.,
actual messages, memoranda, letters, facsimiles, news reports, memos of
telephone calls, computer data outputs of many types, and even information
received via words shown on beeper screens). Message preparation must be
accomplished in coordination with the FAA and any exercise planners who also
assist in the preparation of the MSEL. When a complete set of exercise messages
has been produced, quality control of each is time well spent to ensure realism,
consistency, completeness, and proper sequencing by those performing controller
services. Part of the message preparation process is the orientation/training of
controllers to ensure they understand their role in the injection of messages at
precisely the right time and to the right location during exercise conduct.
Administrative support (e.g., reproduction, controlled distribution) is a
substantial, concluding facet of message preparation.

      Exhibit 2.5-4 shows actual implementer messages which were used in the FAA
New England Region (ANE) exercise conducted by the Titan team on 24 and 25 May
1994. Note that one implementer was extracted from the documentation to show an
example of background

                                      2-54
<PAGE>

                                                                    [LOGO] TITAN

information provided at STARTEX. The second implementer illustrates how, two
days later, damage assessment and status reporting are beginning to come in to
the CMC.

                    EXHIBIT 2.5-4 ACTUAL IMPLEMENTER MESSAGES

                                     [CHART]

                                      2-55

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

2.5.1.3 CONTROLLER SERVICES. Exercise control, and the controller services
employed to accomplish that control, seeks to ensure that the exercise stays
within certain bounds and that the exercise objectives are addressed. To serve
this purpose, a set of Control Staff Instructions (COSINs), supplemented by
training of controller and Response Cell personnel, provide the planned
arrangements for controlling and managing the exercise. When the individuals
providing controller services are experienced, they work as a team to move the
exercise (substance and timing) on the right path and pace to achieve designed
objectives. Exercise control functions fall into three general categories:
exercise administration; command and control oversight; and scenario management.
A summary of exercise control functions is provided in Exhibit 2.5-5.

                    EXHIBIT 2.5-5 EXERCISE CONTROL FUNCTIONS

================================================================================
         FUNCTIONS                  SCOPE OF ACTIVITIES TO SUPPORT FUNCTION
================================================================================
Exercise Administration             Includes administrative, security,
                                    transportation, liaison, protocol, and
                                    related activities performed by controllers
                                    to ensure that the exercise runs smoothly
                                    and effectively.
--------------------------------------------------------------------------------
Command and Control Oversight       Includes the collection, preliminary
                                    analysis, and reporting of overall system
                                    performance information. It also involves
                                    activities related to sustaining the
                                    operation of the system hardware and
                                    software used during the exercise.
--------------------------------------------------------------------------------
Scenario Management                 Refers to all activities undertaken by
                                    controllers to stimulate substantive
                                    exercise play along lines that support FAA
                                    leadership exercise objectives.
================================================================================

      A table-top exercise may require only a few controllers (e.g., a 6-8
person Response Cell), and some of the controllers may perform more than one
role (e.g., also be a moderator, or keep a link from the regional Response Cell
to the ADA-20 team of FAA staff elements acting as a Headquarters CMC). Large
exercises, such as multi-regional undertakings, require

                                      2-56
<PAGE>

                                                                    [LOGO] TITAN

considerably more people. In a comprehensive, mission-validation-type exercise,
several dozen well-trained people would be needed. For example, large exercises
require a network of controller personnel who would function in multiple
locations, including the field, and would report frequently to a centralized
operation under a Chief Exercise Director and Chief Exercise Controller (who
would, in turn, be supported by a control staff). Controller services are
tailored to the exercise objectives, and the resources required vary
accordingly. For example, command and control exercises typically pass through
distinct phases (e.g., activation, field preparation activities, communications
test, exercise play, and deactivation). Controller services would change with
each phase, within each exercise.

      Most important in the provision of controller services is the wisdom of
experience which states: Handpick controllers carefully; do it early; involve
them in all aspects of exercise planning; mold them all into a team; and
understand that their actions will determine the degree to which exercise
objectives are achieved.

2.5.1.4 LOGISTICS SUPPORT. Logistics support refers to a broad array of
requirements and capabilities needed to support the exercise. It includes
transportation, exercise facilities, command and control operations and
maintenance, food, lodging, spare parts resupply, and any other activity to
enhance opportunities for success.

      For large exercises, the Exercise Concept and the Exercise Support Plan
outline and detail required logistics support. For example, video support might
be planned to assist in post-exercise activity by recording CMC deliberations to
help provide better understanding of the processes undertaken by the players.
Logistics support might also call for use of the new CD-

                                      2-57

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

ROM off-the-shelf capabilities. One of the challenging aspects of exercises is
to minimize artificial aspects which can alter the enthusiasm for or credibility
of the overall experience. Operational realism is always a design objective
where resources permit. Today's multi-media capabilities can contribute
significantly to enhancing exercise simulations and create a greater sense of
operational realism. Logistics support also includes the provision of
information/orientation activities for participants. Traditionally, these
activities have been conducted by briefings and by display areas for visitors
and participants. Again, the CD-ROM, multi-media technology provides real
opportunities to upgrade the impact on and effectiveness of such orientations.

      Logistics support is "the glue which binds the pieces" for exercises. It
includes all supply aspects, from paper clips and masking tape to color copiers
and computers. Logistics can be the factor that helps move an exercise into the
category of "world class." Exhibit 2.5-6 provides a set of considerations as an
example of the scope of factors which determine overall logistics support.

      Note that exercise objectives come first; considerations relative to
participants is next; the characteristics of the exercise follow, and then a
long list of other factors blends into an overall logistics support picture. The
main message is that logistics support is comprehensive. Planning must be done
early, and Exhibit 2.5-6 provides examples of what should appear in the
substance of an early planning document, the EXPLAN. (See also previous
discussion in Section 2.4.)

                                      2-58
<PAGE>

                                                                    [LOGO] TITAN

                     EXHIBIT 2.5-6 LOGISTICS SUPPORT FACTORS

         ===============================================================

         -    Detailed Exercise Objectives
         -    Participants (players, controllers, observers, VIPs, etc.)
         -    Exercise Phases (especially communications exercises)
         -    Exercise Play Configurations
         -    Exercise Locations
         -    Simulations and Constraints
         -    Player Communications Requirements
         -    Organizational Responsibilities
         -    General Guidance on Player Transportation
         -    Exercise Administration Overview
         -    Security Overview
         -    Control Overview
         -    Primary Exercise Planners
         -    Participant Preparation Overview

         ===============================================================

      More logistics support detail follows in a later planning document, the
Support Plan. It identifies the specifics and defines tasks to be accomplished.
Exhibit 2.5-7 provides examples of what would appear in a Support Plan.

               Exhibit 2.5-7 EXAMPLES OF LOGISTICS SUPPORT DETAILS

         =======================================================================

         -    Administrative Support Organization; Staffing Requirements/Sources
         -    Administrative Functions/Responsibilities
         -    Administrative Equipment and Supplies
         -    Audio-Visual Aids (e.g., charts, multi-media, other)
         -    Standard Operating Procedures
         -    Billeting, Messing, and Recreational Facilities/Supplies
         -    Medical Services Availability/Provisions for Handicapped
         -    Security Clearance Requirements, as needed
         -    Access Rosters and Badging, if needed
         -    Special Provision for Retention of Exercise Materials
         -    Central Locator File of All Participants (important for long
              exercises with several shifts)
         -    Orientation Briefings and Emergency Instructions
         -    Visitors and Observers
         -    Transportation Resources and Arrangements
         -    Personnel Emergencies
         -    Pre-positioning Player, Controller, Evaluator, and Data Collector
              Materials
         -    Controller Management and Implementation Requirements

         =======================================================================

                                      2-59

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      Note that this phase of logistics support represents a level of commitment
where names are provided, space is committed, schedules are prepared, and
resources are invested. If a contractual/vendor service is needed, the contract
needs to now be in place. The final quality control action is one of constant
vigilance to search out what might have been overlooked.

      Importantly, logistics support is in the hands of many people. For
example, as mentioned earlier, controller services will include aspects of
exercise administration to ensure that the exercise runs smoothly and securely
(e.g., protocol, transportation, liaison, and security). Logistics support
planning must be the model of complete coordination; it must place exercise
objectives, safety, and security at the top of the priority list.

2.5.1.5 MASTER SCENARIO EVENTS LIST (MSEL) PREPARATION. This is the list which
contains the events descriptions that collectively present the subjects or
themes in the exercise which challenge and engage the players. The MSEL is in
consonance with the scenario and supports the exercise objectives. The MSEL
events provide a framework for planned activities and they focus the direction
of the exercise. Each event description includes an event number, a date-time
group for corresponding implementers (to be injected by exercise controllers),
and the source of the event, along with a brief narrative description of the
event itself. The implementers (previously discussed) expand the MSEL and
contain detailed, relevant, and plausible scenario information. There is at
least one implementer for each MSEL event. Implementers take the form of
messages, e.g., electrical, hard copy, telephone, text beeper displays, and any
other form of communication. Most implementers will originate from outside the
FAA or within the infrastructure (generally represented by a Response Cell or
other members of the Controller support team). In some cases, such as simulated
media releases, the

                                      2-60
<PAGE>

                                                                    [LOGO] TITAN

design may have the implementer go to senior exercise decision makers directly.
Depending on the design of a specific exercise, MSEL support could require a
full suite of supporting documents, such as a Time Compression Brief, discussed
earlier under the first Task I element--scenario development.

      Most important in MSEL preparation is careful attention by experienced
exercise managers to ensure that the exercise design stimulates dynamics which
stay within the bounds of the objectives set by FAA leadership, and that
problems presented to players are credible, relevant, and timely.

2.5.1.6 ACCUMULATION AND PRESENTATION OF CRITIQUE COMMENTS. Feedback on the
conduct and substance of an exercise is an essential ingredient for the planning
of future activities and the critiques serve as one indicator of the degree to
which exercise objectives were achieved. Gathering critique comments is a major
component of exercise planning and implementation. IN THE PRE-EXERCISE PHASE, a
concept needs to be in place which commits to the provision of opportunities for
exercise participants to give their observations and judgments about all facets
of the activity. In a large exercise (one which involves many locations,
organizations, technical specialists, communications systems, and logistics
support), the successful accumulation of constructive feedback from the wide
variety of participants requires that a systematic observation/recording plan be
established. Training people to follow the plan is key to implementation. DURING
THE EXERCISE CONDUCT PHASE, the exercise control structure has proven to be the
most productive vehicle for gathering critique information. The control
structure exists throughout the exercise; it covers all locations; it includes
many Controllers who have multiple roles; and it often has a dedicated
communications capability. The pre-exercise data-gathering

                                      2-61

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

plan might have called for frequent, periodic reporting by Controllers; it might
have required that technicians enter comments on pre-formatted critique forms;
it may have called for video taping of key player deliberations and discussions.
Such planned actions must be taken as intended.

      The most efficient accumulation and presentation of critique comments can
be accomplished in table-top exercises because most participants are together in
one area. For example, in the FAA 1992-1994 regional exercise series, a "hot
wash" or feedback period was conducted every two or three hours (for each time
segment played), and a final "hot wash" was conducted at exercise conclusion.
The "hot wash" consisted of a pause in exercise play, during which the Crisis
Response Steering/Working Group leader assembled all exercise participants
(including the Response Cell personnel). The period was dedicated to the
question: "How have we done in the last several hours?" Typically, the ensuing
discussions have proven valuable. They clarify problem areas, provide a chance
for policy or issue education, result in quality training, and set the stage for
lessons learned and follow-on fix actions. The final wrap-up "hot wash" in those
regional exercises has usually included FAA Headquarters via teleconferencing on
a speaker phone into the regional CMC. In the discussions, the substance is the
same: "How did we do? How can we do better? Did we provide the help that was
needed? How can we improve the SITREP? Can the exercise design and conduct be
improved?" In these "hot wash" discussions, the region and the headquarters are
in direct conversation; the experience is fresh in everyone's mind, and the
process conveys an atmosphere in which participants know they can be heard and
make inputs for the future.

                                      2-62
<PAGE>

                                                                    [LOGO] TITAN

      IN THE POST-EXERCISE PHASE, critique information needs to come together
for after-action efforts, to include the systematic creation of lessons learned.
In a complex exercise, the critique process output should benefit from an
all-source feedback loop which might include volumes of written reports and
critique forms, and subsequent interviews and meetings. Traditionally, the
process feeds into an overall evaluation process with data reduction, analysis,
and a final report. In the table-top regional exercises of 1992-1994, a
post-exercise critique sheet was prepared for distribution to all participants
immediately following the final "hot wash." The written critique comments, when
included in after-action documentation for each regional exercise, served to
reinforce verbal comments made for "all ears" during teleconferencing and other
"hot washes." The critique sheets were provided to the region for its own record
and also provided to FAA for building its own lessons learned database. Several
times during the 1992-1994 exercise series, a composite critique summary was
prepared to establish a big picture view of the exercises. The overwhelming
message in the critiques has been: "We need more emergency operations
exercises."

2.5.1.7 STATEMENTS OF LESSONS LEARNED. Lessons Learned come from two main
sources: operational experience and exercise experience. Lessons Learned,
therefore, are both inputs to the planning process, and they are outputs from
new experiences with impact on subsequent operational and exercise activity.
Traditionally exercise lessons learned are in four categories: planning,
control, personnel preparation; and evaluation (or after-action). Examples of
statements of lessons learned relevant to planning might include: allow six
months to develop a scenario to support a complex command and control exercise;
for headquarters-sponsored exercises, bring regional planners into the scenario
development as early as possible so as to cast

                                      2-63

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

the design to include their objectives; for all exercises: agree on the concept
for Controller Services (and who the people will be) as soon as possible.

      Examples of statements of lessons learned for CONTROL might include:
individuals who provide controller services require authority (by personal
presence or by plan) to make the right things happen. The desired path and pace
of exercise activity is the output of controller activity and success is
determined by balancing objectives between the creativity of "free play" and
systematic planning via "scripted play"; in the 1992-1994 FAA regional
exercises, the Response Cell support consistently demonstrated the wisdom of
recruiting "the best" FAA people in that supporting role -- many deserved
"Oscars" for their performance.

      Examples of lessons learned statements on PERSONNEL PREPARATION might
include: exercise controllers are so important to success that they must be
handpicked and thoroughly trained; in the 1992-1994 FAA Headquarters regional
exercise series, the orientation and training sessions with the FAA Response
Cell and the individual regional Response Cells proved to be a key to the
successes; also in those exercises, the pre-exercise meetings with the Regional
Administrator (or senior person to chair the Crisis Response Steering Group)
before each exercise proved to be extremely important in establishing the
teamwork needed for effective performance during conduct of the exercise.

      Examples of lessons learned statements about EVALUATION OR AFTER-ACTION
are: gaining insights into command and control exercises involves much more than
an evaluation via a numerical determination of reliability, availability, and
maintainability of the various equipments and facilities; real value added
requires the assessment of larger functions which link to mission

                                      2-64
<PAGE>

                                                                    [LOGO] TITAN

accomplishment from a senior leadership point of view; it was a wise decision
when the FAA emergency operations exercises in 1992-1994 were planned around the
frequent "hot wash" periods in which all participants could speak and hear each
other directly, so that learning, team-building, and commitments to required
"fix actions" would be out in the open, and so the critique process would not be
tied to grading individual performance. ASO, AWP, and ASW were first in the
series of nine exercises, and as the collective FAA exercise learning curve
matured, feedback was enhanced as the reputation of the exercise Team was shaped
by the realization that their focus was more on learning and less on evaluation.

      Most important in creating or thinking about lessons learned is the fact
that lessons learned (individually or collectively) are the jewels of the
exercise planners world, and they are potential jewels for FAA leadership
because they contribute to refinements and fixes in the real world. One Regional
Administrator knew this well in advance of the exercise team arrival, He took
his own actions to preserve every detail of the two-day exercise. The Regional
Administrator had planned ahead and assigned two people to "keep a record;" he
placed them on opposite ends of the CMC. He has since told the Titan Project
Manager that it was one of the smartest things he did because those notes were
consolidated and became the basis for a series of action items he has since
assigned to the staff.

2.5.1.8 PREPARATION OF PRE-EXERCISE PARTICIPANT INFORMATION HAND-OUTS. Titan
recognizes the importance of ensuring that the participants for each exercise
are informed about all the critical elements of the exercise conduct. While much
of this information is contained in planning documentation, experience with the
recently completed series of regional table-top exercises indicates that a
specifically focused and user-friendly set of handbooks is of most value

                                      2-65

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

to the participants. The purpose is to provide exercise participants with a
reference source to help in understanding the exercise mechanics and their
specific responsibilities. The length and detail of each handbook will vary
depending upon the complexity of the exercise. For the table-top exercises, the
Players' Handbook has been developed to include the following subjects:
background, references, points of contact, purpose of exercise, exercise concept
and objectives, assumptions, simulations, and constraints, background scenario,
exercise conduct, exercise schedule, and exercise communications. A Group
Leader's Discussion Guide is also a document which has proven useful. During the
regional table-top exercises, the Group Leader (Regional Administrator or
designee) was more of a "trusted agent." While she/he would not know as much as
the Controller/Response Cell personnel, this individual needed to know more
information than the other participants. The Discussion Guide provided the
needed information. The value in this is that the handbook allowed the Group
Leader to share in what was planned so he/she would be able to provide guidance
and course corrections during the exercise. The Response Cell also needs its own
set of specific information. In a full scale exercise, most relevant controller
information would be contained in the COSIN. For ease of assimilation, we
developed a Response Cell Handbook which provided a document specifically
focused to the requirements of and responsibilities of these personnel. Although
not currently required as part of the regional table-top series of exercises, a
Data Collectors/Evaluators Handbook, based upon the EVALPLAN, would also be of
value to selective personnel.

      Finally, Titan has found that the development and presentation of
orientation and background briefings to all participants is valuable. From our
experiences in other exercises, including full scale exercises, these briefings
can provide an efficient way for all participants to be "brought up to speed"
prior to the exercise.

                                      2-66
<PAGE>

                                                                    [LOGO] TITAN

2.5.1.9 PREPARATION OF "SCHOOL SOLUTION"" PAPERS FOR PRESCRIBED EXERCISES. While
there are no true "school solutions" to most exercises, there are specific
issues which lend themselves to further amplification and can be addressed as
"school solution" issue papers prepared for all participants as part of the
exercise preparation. The concept behind the development of these papers is to
address issues that might come up during the exercise but which would become a
more vital element of exercise play if the participants better understand the
background and content in which these issues were to be played. Examples of
these "school solution" issue papers are:

      -     Interrelationship between the FAA Emergency Operations Program and
            the FRP

      -     The role and responsibilities of the RETCO and RETREP

      -     Procedures for requesting airlift to support FAA requirements

      -     Overview of the family of governmental response plans

      -     Overview of the Air Traffic Service Cell (ATSC)

      -     Overview of FAA communications capability.

      Titan understands the valuable role that such issue papers can serve and,
with our collective experience in the overall emergency management community and
our experience in supporting most of the Federal D/As, we are ready to assist
ADA-20 and the FAA Emergency Operations Program in developing these papers.

2.5.1.10 SUMMARY: TASK I ELEMENTS. Exhibit 2.5-8 shows Task I SOW elements in
relationship to the three exercise phases. The exhibit portrays when actions are
taken and when the impact is made by each element. For example, the influence of
logistics support and controller services is seen during every phase of the
exercise. The same is true for statements

                                      2-67

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

of Lessons Learned. For example, lessons learned prior to exercise planning
impact the design; lessons learned during the exercise might result in immediate
fix actions (such as altering work area, space, and location, or adding people
to the CMC team). Lessons obtained from the overall exercise go into final
reporting and will impact future operational and exercise planning.

      The creation of individual exercises (or the planning of an exercise
series) requires an understanding of the SOW-specified elements/components, and
the relationship of those parts to the total picture. With understanding comes
opportunities for exercise successes, which translate to improved FAA emergency
operations.

                          EXHIBIT 2.5-8 TASK I ELEMENTS

<TABLE>
<CAPTION>
======================================================================================
                                                      EXERCISE PHASES
                                       -----------------------------------------------
       TASK I SOW ELEMENTS             PRE-EXERCISE   EXERCISE CONDUCT   POST-EXERCISE
======================================================================================
<S>                                       <C>               <C>               <C>
Scenario Development                        A                I                 I
--------------------------------------------------------------------------------------
Message Preparation                         A               A/I                I
--------------------------------------------------------------------------------------
Controller Services                        A/I              A/I               A/I
--------------------------------------------------------------------------------------
Logistics Support                          A/I              A/I               A/I
--------------------------------------------------------------------------------------
MSEL Preparation                            A                I                 I
--------------------------------------------------------------------------------------
Accumulation and Presentation of            A                A                A/I
Critique Comments
--------------------------------------------------------------------------------------
Statements of Lessons Learned              A/I              A/I               A/I
--------------------------------------------------------------------------------------
Preparation of Pre-Exercise Participant     A                I                 I
Information Hand-Outs
--------------------------------------------------------------------------------------
Preparation of "School Solution" Papers     A                I                 A
for Prescribed Exercises
--------------------------------------------------------------------------------------
LEGEND:

     A = Exercise phase in which Action is taken
     I = Exercise phase in which Impact occurs
   A/I = Exercise phase containing both Action and Impact in same phase
======================================================================================
</TABLE>

                                      2-68
<PAGE>

                                                                    [LOGO] TITAN

2.5.2 APPROACH

      Titan's approach to the implementation of Task I is described in this
section. The overarching view taken is that all exercises (from table-top to
full-scale exercises) have universal elements. Some of these elements are
highlighted in the SOW and were discussed in Section 2.5.1. Other elements,
factors and considerations were discussed earlier in Section 2.4.

      In our approach, all exercise tasking will pass through a thought process
(a nine-step exercise design template) to help make inputs to planning and
implementation decisions. The steps in the design template, shown in Exhibit
2.5-9, are in three phases: pre-exercise, exercise conduct, and post-exercise.
The steps will be followed in each of the types of exercises: regional only
exercises (Section 2.5.2.1); headquarters only exercises (Section 2.5.2.2); and
combined region and headquarters exercises (Section 2.5.2.3). Each step flows
sequentially to the next higher step. For example. Step 3 is the output of the
pre-exercise phase, but it also is an input condition needed for Step 4 in the
exercise phase. In turn, Step 9 is an output of the post-exercise phase, but is
critical as an input to a future Step 1.

                                      2-69

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

            EXHIBIT 2.5-9 TITAN'S NINE-STEP EXERCISE DESIGN TEMPLATE

================================================================================
  PHASE             STEPS                       DESCRIPTION OF STEPS
================================================================================
Pre-        1. Set Objectives       Decisions on exercise goals and objectives
Exercise                            include links to the mission and senior
                                    leadership responsibilities; lessons learned
                                    from real-world operational experience and
                                    previous exercises; and considerations
                                    relative to multiple exercises (e.g., a
                                    Master Plan).
            --------------------------------------------------------------------
            2. Make                 Decisions and commitments made about
               Preparations         participants, facilities, logistic support,
                                    administration, player and controller
                                    training, and document coordination
                                    processes.
            --------------------------------------------------------------------
            3. Provide              Documents include Exercise Work Plan,
               Documentation        Concept and Objectives. EXPLAN, COMMEX Plan,
                                    Scenario, MSEL, implementers, Players'
                                    Handbook, COSIN, EVALPLAN, evaluation
                                    instruments, and training materials (e.g.,
                                    tailored to specific participants, VIP
                                    orientation materials, "school solution"
                                    papers, multi-media).
--------------------------------------------------------------------------------
Exercise    4. Accomplish Final     Before STARTEX, management uses time to
Conduct        Quality Control      focus on most critical factors and to fix
               Checks               areas which are possible weak spots.
            --------------------------------------------------------------------
            5. Conduct the          An exercise consists of: STARTEX; exercise
               Exercise             control; scenario monitoring; collection of
                                    a record of activity (to include technical
                                    and/or electronic data where applicable);
                                    collection of feedback through
                                    questionnaires, critiques, and "hot washes";
                                    and ENDEX.
            --------------------------------------------------------------------
            6. Provide a Record     Records include a record of activities, data
                                    collection products, and feedback from all
                                    sources possible.
--------------------------------------------------------------------------------
Post-       7. Receive              Maximize feedback from all sources, planned
Exercise       Feedback             and extemporaneous.
            --------------------------------------------------------------------
            8. Conduct              Examine critique or first impressions
               Research and         reports and compiled data; conduct
               Analysis             conferences or interviews; document and
                                    coordinate lessons learned, Evaluation
                                    Report, and After-Action Report.
            --------------------------------------------------------------------
            9. Provide Input to     Conduct briefings; establish who receives
               the Future           results; discuss impact on planning; publish
                                    lessons learned, Evaluation Report and
                                    After-Action Report.
================================================================================

2.5.2.1 REGIONAL ONLY EXERCISES. While the nine FAA regional exercises conducted
between 1992 and 1994 were table-top exercises (with actions bounded by
information flow between CMCs and Response Cells), regional exercises could be
tasked calling for highly interactive participation in a large infrastructure
(e.g., field personnel and supporting vendors on contract), with information
flow between hundreds or thousands of FAA personnel. Given a specific

                                      2-70
<PAGE>

                                                                    [LOGO] TITAN

tasking for one or more regional only exercises, the approach taken would follow
the nine steps shown in Exhibit 2.5-9.

      For the first year deliverables of Task I (SOW para 6.1), five regional
table-top exercises will be accomplished, with outside agencies simulated by a
Response Cell.

      The pre-exercise phase will follow the three steps shown in Exhibit
2.5-10.

                   EXHIBIT 2.5-10 STEPS IN PRE-EXERCISE PHASE

--------------------------------------------------------------------------------

          STEP 1               STEP 2               STEP 3

          ----------------     ----------------     ----------------
                SET                  MAKE                PROVIDE
            OBJECTIVES           PREPARATIONS         DOCUMENTATION
          ----------------     ----------------     ----------------

--------------------------------------------------------------------------------

      In Step 1, objectives will be determined through meetings and coordination
with the FAA Project Officer and others as directed. Objectives will reflect
emergency operations mission and priorities; it will also reflect lessons
learned from experience in actual operations and previous exercises. At this
point, a focus on the critical emergency functions to be addressed is a priority
factor.

      Step 2 is a process of preparation and will take place to define concepts
and make commitments relative to participation, locations, key issues, plans,
procedures, and appropriate documentation. The five regional table-top exercises
in the first year of Task I (SOW para 6.1)

                                      2-71

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

will start with development of a planning paper which will be provided to the
region planning team through the FAA Project Officer. Proposed documentation
will include: Moderator's Handbook, Moderator's Briefing Materials, Group
Leader's Handbook, Players' Handbook, Response Cell Handbook, Critique Forms,
and materials for After-Action Report. The contents of these documents is
summarized in Exhibit 2.5-11.

                     EXHIBIT 2.5-11 TABLE-TOP DOCUMENTATION

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------------------------------
                                     Moderator's   Moderator's   Group Leader's   Response Cell   Players'     After-Action
       Contents                        Handbook      Briefing       Handbook         Handbook     Handbook   Report Materials
-----------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>           <C>            <C>              <C>           <C>            <C>
Concept, Objectives                       -             -              -                -             -              o
-----------------------------------------------------------------------------------------------------------------------------
Logistics Support

- Administration Support                  -             -              -                -             -
                                    -----------------------------------------------------------------------------------------
- Schedule                                -             -              -                -             -
                                    -----------------------------------------------------------------------------------------
- Communications                          -             -              -                -             -
-----------------------------------------------------------------------------------------------------------------------------
Full Scenario                             -             -
-----------------------------------------------------------------------------------------------------------------------------
Scenario Summary                          -             -              -                -             -              -
-----------------------------------------------------------------------------------------------------------------------------
MSEL                                      -                                                                          -
-----------------------------------------------------------------------------------------------------------------------------
Implementers (Messages)                   -                                             -
-----------------------------------------------------------------------------------------------------------------------------
Controller Services (COSIN)                                                             -
-----------------------------------------------------------------------------------------------------------------------------
Orientation/Training Materials

- Teaching Points                         -             -              -                -
                                    -----------------------------------------------------------------------------------------
- School Solutions                        -             -                               -
                                    -----------------------------------------------------------------------------------------
- VIP Briefings                           -             -
                                    -----------------------------------------------------------------------------------------
- Special Topic Briefs                    -             -
-----------------------------------------------------------------------------------------------------------------------------
After-Action Materials

- Critique Forms                          -             -                                                            -
                                    -----------------------------------------------------------------------------------------
- Questionnaires                          -             -                                                            -
                                    -----------------------------------------------------------------------------------------
- Lessons Learned Forms                   -             -                                                            -
-----------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                      2-72
<PAGE>

                                                                    [LOGO] TITAN

      Step 3 will produce the full set of documentation and provide each
participant with those consistent with the exercise role they will play.
Participants providing controller services will have all documents available and
will receive orientation and training as well. The group leader (Regional
Administrator) will receive a Group Leader's Handbook in advance and will
receive an orientation before STARTEX. Players will receive information to
provide an overall orientation of exercise conduct.

      The exercise conduct phase (Exhibit 2.5-12) starts as players and Response
Cell personnel assemble just prior to STARTEX. Step 4 will focus everyone's
attention on the exercise, provide introductory remarks, and correct immediate
support problems or voids that are known at the last minute.

                 EXHIBIT 2.5-12 STEPS IN EXERCISE CONDUCT PHASE

--------------------------------------------------------------------------------

          STEP 4               STEP 5               STEP 6

          ----------------     ----------------     ----------------
             ACCOMPLISH             CONDUCT              PROVIDE
            FINAL QUALITY         THE EXERCISE          A RECORD
           CONTROL CHECKS
          ----------------     ----------------     ----------------

--------------------------------------------------------------------------------

      Step 5 begins with STARTEX and takes place over a two-day period of
approximately 10-12 hours of exercise play. The moderator will provide
situations to the region Crisis Response Group (CRG); the Response Cell will
input implementers; FAA Headquarters support

                                      2-73

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

team under ADA-20 leadership will teleconference with the CRG to review status
and discuss SITREP reporting effectiveness; designated controllers will gather
data for after-action reporting; and the group leader will conduct a series of
"hot wash" feedback sessions to include a final exercise wrap-up as part of the
ENDEX process. Designated controllers will provide periodic updates and
impressions to ADA-20 throughout the conduct of the exercise.

      In Step 6, materials will be gathered at ENDEX to provide a record of the
exercise. Critique forms, questionnaires, and lessons learned materials will be
provided to participants and accomplished as part of the data collection effort
to input to the post-exercise phase.

      The post-exercise phase (Exhibit 2.5-13) begins with end of active
exercise play and the conduct of "hot washes" and critiques.

                   EXHIBIT 2.5-13 STEPS IN POST-EXERCISE PHASE

--------------------------------------------------------------------------------

          STEP 7               STEP 8               STEP 9

          ----------------     ----------------     ----------------
               RECEIVE              CONDUCT           PROVIDE INPUT
              FEEDBACK             RESEARCH           TO THE FUTURE
                                 AND ANALYSIS
          ----------------     ----------------     ----------------

--------------------------------------------------------------------------------

      In Step 7, designated people who have responsibility for preparation of
the After-Action Report will collect all relevant feedback materials. There will
be continuing discussions with exercise players in an effort to attract as much
feedback as possible.

                                      2-74
<PAGE>

                                                                    [LOGO] TITAN

      Step 8 starts with a review of the exercise record documented in Step 6
and feedback gathered in Step 7. Step 8 continues with telephone calls or
meetings to clarify selected aspects of the exercise. Most of the work is in the
process of information/data integration. This integration work is needed to
capture mainstream ideas, problems, voids, and lessons learned. The results of
that integration will then be documented for and coordinated with ADA-20.

      Step 9 for an individual table-top exercise starts with finalizing the
After-Action Report. It will include the option of providing ADA-20 with a
briefing to allow the opportunity for still further discussion and refinement.
The After-Action Report is then available as an input to future exercise
activity and provides a source of ideas for changes in day-to-day emergency
preparedness operations.

2.5.2.2 HEADQUARTERS ONLY EXERCISES. Headquarters exercises have the potential
for the full spectrum of possible designs. On one hand, a series of table-tops
could be conducted; on the other hand, a mix of table-tops and variations toward
FSEs could evolve. The SOW (para 6.2) specifies a first year deliverable of a
single exercise involving a catastrophic natural disaster in which a Response
Cell simulates all outside agencies (e.g., Federal D/As, state and/or local
officials).

      The approach to the support of Headquarters exercises will include all of
the planning documentation described in Section 2.4 and the step-by-step process
used in regional table-top exercises (Subsection 2.5.2.1). Titan's approach will
be to use the template (Exhibit 2.5-9) as a guide to the thought process in our
response to all future tasking.

                                      2-75

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      In the PRE-EXERCISE PHASE, Step 1 will set exercise objectives. As is the
case for all exercises, this step determines all that follows. Step 2 will make
all necessary preparations and call out the specifics in development of the
concept, commitments, and decisions relative to: who will participate; where
activities will take place; what controller services are needed (e.g.. many
people at many locations or a few people in one room, collocated with the CMC);
does the FEMA-maintained Exercise Calendar and DOD exercise schedule show
conflicts or maybe provide opportunities to "piggy back" on available Federal
exercise resources; what damage should the scenario describe; what factors need
to be considered in the potential relocation of the CMC; who are the
coordination points for documentation developed for Step 3. Document preparation
will proceed on the Work Plan schedule, with emphasis on coordination and
content quality control.

      In the EXERCISE CONDUCT PHASE, Step 4 (accomplish final quality control
checks) is a controller services action one measure of the commitment to the
exercise is reflected in the fine-tuning and last-minute repair actions to
guarantee a healthy STARTEX. The headquarters-only exercise conduct (Step 5)
will involve senior FAA leadership and management. It will require the best
possible Response Cell support because "artificialities" in exercises are often
the biggest distractor for the players. The careful staffing of a well-trained
and motivated Response Cell is the single most crucial feature of overall
technical support that can make a difference during conduct of the exercise. The
ideal concept is to surround players with information from a Response Cell
composed of people who would normally be involved in a real event. Response Cell
members are surrogates of the world outside of a specific exercise environment.
Exercise designers often refer to them as the possessors of exercise "ground
truth." They must know and understand the FAA; they must have familiarity with
other response organizations; they must

                                      2-76
<PAGE>

                                                                    [LOGO] TITAN

know the scenario and exercise objectives and timing; they must be flexible to
allow for productive free play; they must manage overall information flow to
provide realism, relevance, and realistic response to player activity; they must
avoid discontinuities which would detract from player decision making and
assessments; they must be ready to contribute to feedback processes (e.g.. "hot
washes," critiques, questionnaires, data compilation, and lessons learned) and
help accomplish Step 6 (provide a record).

      The POST-EXERCISE PHASE starts with Step 7 (receive feedback) which seeks
to maximize all possible feedback sources as an input to Step 8. Step 8 pulls
together the exercise record and captures comments, reactions, and
recommendations--even at the coffee pots around the headquarters. Step 8
develops an overview of what occurred in terms of exercise objectives. It
includes coordination to achieve common ground for resultant changes and new
learning. Step 9 finalizes the After-Action Report and concludes a single
exercise cycle. This step provides input to potential changes in future
operational and exercise planning.

2.5.2.3 COMBINED REGION AND HEADQUARTERS EXERCISES. Task I specifies that these
exercises will consist of a mix of table-top and full scale interactive
exercises between and among regions and headquarters. The first year task and
deliverable for a multi-regional/headquarters exercise (SOW para 6.3) will
involve a catastrophic natural disaster, with outside agencies simulated through
a Response Cell. This exercise category expands complexity and participation.
All the SOW elements discussed in subsection 2.5.1, and all the components
summarized in the Titan exercise design template (Exhibit 2.5-9) are applicable.
The wide range of essential (emergency) functions, policy, plans, procedures,
and simulated Federal D/A coordination required for this

                                      2-77

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

level of exercise participation place this exercise category at the top of the
FAA-only exercise pyramid which Task I encompasses.

      The PRE-EXERCISE PHASE will take more time to accomplish than for other
exercises, and the steps taken will cover more considerations and commitments.
Step 1 will set exercise objectives; it will require more comprehensive research
to gather all relevant lessons learned; it will focus on the single exercise
being planned but in terms of multi-year or Master Plan documentation aimed at
future building blocks. Step 1 will also identify issues and problem areas that
will affect development of the scenario, MSEL, implementers, and impact
training/orientation preparations for exercise participants. Step 2 will also
take longer than for previous exercises described, but its purpose is the
same--to ferret out the important specifics leading to a document development
and coordinating process. In this exercise category, participation will be
expanded, locations will be increased, logistic support more comprehensive,
training more demanding, and coordination more challenging. Step 3 will provide
the documentation shown in the exercise design template (Exhibit 2.5-9).
Table-top documentation (Exhibit 2.5-11) did not require a large volume of
material. This exercise category will require the full suite of documents and
must be guided by the Exercise Work Plan schedule (Exhibit 2.4-3). Implementers
take on special significance because the formats may range from narrative
messages, to computer record messages, to telephone/radio scripts; they are the
vehicles for controller information input and must be realistic and of reliable
substantive content. Implementers have high impact and require detailed
knowledge of operating procedures; they directly control the conduct of the
exercise. Implementers link directly to the MSEL which provide the bridge
between overall objectives and implementer development/production. When
implementers have been finally edited and coordinated (a process that can take
weeks or

                                      2-78
<PAGE>

                                                                    [LOGO] TITAN

months), instructions are needed on how they are inserted into exercise play.
The COSIN is needed to coordinate control services functions and actions;
injection of implementers (e.g., over planned communications links or
handcarried by the Response Cell) is part of COSIN planning. Other documentation
accomplished in Step 3 is expanded in this exercise category. For example,
training materials, information handouts, "school solution" papers (if
specified), VIP briefings, orientation or display areas, public affairs
preparations, video support, and special purpose briefing materials are all
examples of the variety of support efforts which require substantial resource
commitments and exercise team expertise.

      The EXERCISE CONDUCT PHASE starts with Step 4, which, because of the large
size of the exercise, will require an exercise countdown checklist to ensure
that resources are in place, controllers are ready, time zone differences are
accounted for, and any soft spots across-the-board are fixed before STARTEX.
Step 5 begins the combined region and headquarters exercise. Because thorough
and quality actions will have occurred in the first four steps, the critical key
in Step 5 is controller services. Here is where the difference can be made by
Titan's comprehensive understanding of the relationships between the FAA
operational infrastructure, the importance of contingency, state and local
planning which must be represented, and the interdepartmental coordination
requirements among participating Federal D/As. Knowledge and experience in the
overall emergency operations community (of which FAA is a key part) will be
important in this internal FAA exercise type, because Response Cell personnel
need to simulate the kinds of interactions which would actually take place.
Discussion of Task II (SOW para 5.3) in Section 2.6 will expand further on the
importance of knowing the whole emergency operations picture. Step 5 may also
include some periods of exercise stop-actions (unless exercise objectives and
design result in round-the-clock operations, with day and night shifts

                                      2-79

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

over a specified period of time as is conceivable under the most critical,
strenuous scenarios). During the stop-actions, a systematic process, involving
multiple locations, will create the opportunity to allow participants to come
together (e.g., teleconferencing, video conferencing) to discuss and critique
activities [e.g., damage assessment processes, status and progress reporting
processes (such as Readiness Levels Alfa, Bravo, Charlie, Delta; SECONs Alfa,
Bravo, Charlie, Delta per Order 1900.1E) as well as timeliness and quality of
SITREPs or information on VIP support planning (such as White House, DOT, and/or
FEMA leadership enroute to any affected area)]. The stop-actions as part of Step
5 will be designed into the exercise conduct to serve one exercise objective
which is always present--to provide opportunities for feedback to enhance
learning. "Hot washes," critique forms, and questionnaires will feed the
process. Step 6 receives all possible inputs from earlier activities and
captures those inputs in some record form so that post-exercise steps can be
more efficiently taken.

      The post-exercise phase for exercises of the large scope being discussed
have special significance. Exercises always reflect top leadership commitments
and investments to operational enhancements, but large exercises will represent
large investments. The post-exercise phase is the time to assess what the FAA
receives for the expenditures. High payoff answers will have already been made
in the minds of many of the players as they return to their own work areas to
"change" something because of their individual lesson learned. Regional
supplements to the FAA Emergency Operations Plans will be validated or refined
by such exercises. New learning and team-building will have been put in
place--but much of that will not be recorded. Step 7 starts the post-exercise
phase, but with less than a full record. Careful planning will enhance
observation skills and sharpen the quality of the feedback process. The

                                      2-80
<PAGE>

                                                                    [LOGO] TITAN

implementation of thorough planning results in data collection (could include
electronic data collection where a high volume of transmissions are made over a
network of communication systems) which capture what is needed to see if
objectives were accomplished. Step 8 requires examination of all feedback,
coordination of the After-Action Report, and an uncompromising sense of where
this exercise experience fits in the larger world of FAA emergency operations
experience. The experiences of Hurricane ANDREW, the Los Angeles riots, the
Mid-West floods, and the endless earthquakes along the West Coast are reminders
that experience in emergency operations comes first and foremost from real
events. Exercise design and exercise after-action reports (leading to lessons
learned for the future) must keep this perspective in mind. In addition, value
added should equate to the design effort. The large investment represented by a
large exercise (such as a combined region(s) and headquarters undertaking)
demands that, when the question is asked: What did the FAA receive for the
investment?, the answer will be "value added to the FAA Emergency Operations
Program."

      Step 9 results in an After-Action Report, and it also results in
preliminary briefings and meetings which aim at a distillation process in which
the output includes: statements of lessons learned; changes in future exercise
design and conduct; assessment of the exercise objectives; reactions of
participants; and changes needed in day-to-day operations. These are the kinds
of outputs which apply in Step 9 and will be documented in a report. The outline
for the After-Action Report is shown in Exhibit 2.5-14.

                                      2-81

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

         EXHIBIT 2.5-14 AFTER-ACTION REPORT (OUTLINE FOR LARGE EXERCISE)

================================================================================
                     I    Executive Summary

                     II   Introduction
                          A. Objectives
                          B. Methodology and Process
                          C. Organization of Report

                     III  Exercise Overview
                          A. Concept
                          B. Objectives
                          C. Team Operations

                     IV   Results, Conclusions, and Recommendations
                          A. Overall Observations
                          B. Observations by Each Objective
                          C. Conclusions
                          D. Recommendations

                     Annexes:

                          A. Lessons Learned Statements
                          B. Critique Forms (Results Summarized)
                          C. Critique Forms (Originals)
                          D. Other Data (Analysis, Interviews)
================================================================================

2.5.3 CONCLUSION

      The understanding of and approach to Task I is experience-based. The
thought process which shapes this response to the SOW reflects Titan's
community-wide emergency operations experience. Detailed knowledge of FAA Order
1900.1E is blended with equally detailed knowledge of regional plans on one hand
and the FRP on the other. Titan understands the plans and knows the people who
implement them. Titan conducted the nine headquarters, regional table-tops in
the 1992-1994 exercise series; Titan is currently planning an exercise series
for 1995 in which the Centers and selected regions will continue in actions to
enhance emergency operations. Task I is a call for Titan technical support,
already proven and ready for more.

                                      2-82
<PAGE>

                                                                    [LOGO] TITAN

2.6 TASK II-SUPPORT FOR EXTERNAL FAA EXERCISES (REFERENCE SOW PARA 5.3)

      The Titan team provides the ideal combination of current experience,
motivation, and organization needed to provide the technical support required
for Task 11. Our expertise in national, regional, and local exercises and our
knowledge of the procedures, products, and people needed to integrate FAA
Emergency Operations Program objectives into external agency exercise planning
all points to fact that we have the right people to provide the right technical
support to Task II. The elements comprising Task II are illustrated in Exhibit
2.6-1.

                         EXHIBIT 2.6-1 TASK II OVERVIEW

<TABLE>
<S>               <C>                            <C>            <C>                            <C>
--------------------------------------------------------------------------------------------------------

                  ---------------------------------------       ---------------------------------------
                                                    SOW                                           SOW
                  INTERNAL FAA EXERCISES         Para 5.2       EXTERNAL FAA EXERCISES         Para 5.3
                                                  Task I                                        Task II
Training and         -  HQ Only                                    -  HQ Only
Exercises            -  Regions Only                               -  Regions Only
                     -  Combined HQ & Regions                      -  Combined HQ & Regions
                  ---------------------------------------       ---------------------------------------

--------------------------------------------------------------------------------------------------------

<S>                              <C>                            <C>
                                 ---------------------------------------------
                                                                   SOW
                                 OTHER TECHNICAL SERVICES       Para 5.4
                                                                Task III
Operational Planning                -  Operations Plans
                                    -  Associated Appendices
                                    -  SOPs
                                 ---------------------------------------------

--------------------------------------------------------------------------------------------------------

<S>                              <C>
                                 ---------------------------------------------
                                 -  Exercise Coordination Meetings
Exercise Coordination            -  Exercise Document Reviews
and Interface Process               -  DOT
                                    -  FEMA
                                    -  Other D/As
                                 ---------------------------------------------

--------------------------------------------------------------------------------------------------------

<S>                              <C>                                  <C>
                                 ---------------------------------------------
                                 ACTIVITY REPORTS                        SOW
Program Oversight                                                      Para 4.
and Control                         -  Work Plan                      Activity
                                    -  Weekly COTR Status Meetings     Reports
                                    -  Monthly Letter Reports
                                 ---------------------------------------------

--------------------------------------------------------------------------------------------------------
</TABLE>

                                      2-83

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

2.6.1 UNDERSTANDING

      The primary distinction between Task I and Task II is that the FAA
internal exercises simulate interactions outside the FAA (via a Response Cell of
handpicked people who could effectively play many roles). Task II exercises
involve actual play of certain external agencies. Response Cell simulation is
not required for participating agencies. Except for that distinction, the
general Task I description of exercises in Section 2.5 apply to Task II.

      Recently, Titan has supported National Emergency Response Team (ERT-N)
training at FEMA's training facility in Emmitsburg, Maryland and in Gettysburg,
Pennsylvania; attended a MSEL conference at Norfolk to support FEMA in a
military-civil exercise scheduled for 1995; conducted Chemical Stockpile
Emergency Preparedness Program (CSEPP) exercises at each of the eight toxic
chemical agent storage sites in the Continental United States; supported FEMA
participation in preparing for the North Atlantic Treaty Organization's (NATO)
Crisis Management Exercise for 1995 (CMX 95); provided technical support to the
National Communications System (NCS) (for the 9th year); provided engineering
and technical support to both the FAA and DOD in information/communications
systems; provided FEMA Operations Support Systems Engineering and Technical
Assistance (SETA); and supported FEMA participation in a jointly sponsored DOE
and FBI terrorist exercise. We know how to apply an agency's exercise needs to
an external environment and how to evaluate that environment for inclusion of an
agency's exercise requirements. We are familiar with and use Federal
Preparedness Guides 7.300 and 8, concerning the current 5-year Exercise
calendar, and Federal Preparedness Circular 7, on National Security Emergency
Exercises.

                                      2-84
<PAGE>

                                                                    [LOGO] TITAN

      Each year Federal D/A exercises are conducted to enhance emergency
preparedness in compliance with a network of policies and commitments. Some of
these exercises are worldwide in scope, with foreign nations and most D/A
headquarters participating. All share the concept of D/A activity to assist the
sponsor in achieving exercise objectives. Discussion of some examples of the
external FAA exercises that might be supported under Task II follow.

2.6.1.1 DEPARTMENT OF TRANSPORTATION EXERCISES. The DOT has the responsibility
to develop plans and procedures for the emergency management of the nation's
civil transportation system in times of national crisis. Implementation of these
responsibilities within the department is vested in the Research and Special
Programs Administration, Office of Emergency Transportation. For actual
implementation, a standby organization has been established and designated as
the DOT Emergency Organization (DOT EO). There is a headquarters DOT EO and 10
Regional DOT EOs. Since one-half of the personnel staffing the EOs are
predesignated DOT employees from all operating administrations and the other
half are volunteers of the DOT National Defense Executive Reserve (NDER) from
private industry, coordination of the functions required and maintenance of
procedural expertise necessitates a vigorous training and exercising program.
DOT accomplishes this through an exercise program in which a scenario-based
exercise, supported by the Headquarters DOT EO, is conducted annually in each of
the 10 DOT EO regions. This program, which has been conducted for the past 12
years, includes FAA participation, where appropriate.

2.6.1.2 CIVIL EXERCISES. Civil exercise programs extend across the entire
spectrum of potential emergency response requirements, from situations involving
national security to those involving a wide range of catastrophic events,
technological hazards, and natural disasters. FEMA, which

                                      2-85

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

sponsors the largest number of these exercises, has identified over 20
technological/manmade and natural hazards for which Federally funded programs
are exercised at the local, State, or National levels. Many of these have direct
application to FAA roles and responsibilities and involve the functions of
various other D/As. In the past, there have been other, large scale, exercises
which have FAA applicability, such as the Office of Civil Defense
(OCD)-sponsored civil defense-related national security exercises in the CIVEX
series, which were conducted independently by FEMA but also involved local and
State government participation and that of other agencies. FEMA sponsors a
series of RESPONSE exercises designed to focus on the response of Federal D/As
to catastrophic earthquakes. In addition, the Department of Justice (INS) is
sponsoring an exercise of the Mass Immigration Emergency Plan. For both of these
exercises FAA participation has been requested.

2.6.1.3 NATIONAL SECURITY EMERGENCY PREPAREDNESS EXERCISES. The lines between
NSEP exercises and those which are currently referred to as
"all-hazards/all-risk" exercises are not clearly drawn in recent national policy
statements or published authorities. For this reason, exercises described in
this paragraph are grouped for ease of identification into those that are
high-level and clearly defined national security exercises. Perhaps the best
known of the exercises grouped in the NSEP category have been those sponsored by
the JCS in their worldwide exercise program which is currently being re-thought.
Examples include Exercises PROUD SCOUT, POWER SWEEP, and PROUD EAGLE, all of
which involved DOD, the major military departments and commands, and the Federal
D/As. These exercises typically alternate among mobilization exercises,
conventional war exercises, and strategic nuclear exchange exercises on a three
exercises per two-year schedule, although current events in Europe and the
Middle East are having an effect on this scheduling. The Crisis Management
Exercise

                                      2-86
<PAGE>

                                                                    [LOGO] TITAN

(CMX) exercises are scheduled annually and involve both the military and civil
sectors. These exercises are sponsored by NATO, with the JCS being the U.S.
sponsor, and involve joint response to a global regional contingency. The Titan
team continues its support of JCS, DOD, FEMA, and NCS exercises and, in the
past, has supported a series of national agency exercises supporting the COG
program.

2.6.2 APPROACH

      Section 2.4 presented our approach to exercise support requirements and
detailed specific component parts. Section 2.5 presented specific elements of
the support requirements to be provided by Titan in terms of planning,
documentation, conduct, and after-action reports. Each of these descriptions
appropriate to any exercise in which the FAA participates. This approach will
emphasize the Task I elements described in Section 2.5.1 and will follow the
nine steps outlined in Exhibit 2.5-9 and detailed in Section 2.5.2. For external
exercises, the steps needed to provide the required technical support are
detailed in Exhibit 2.6-2.

                                      2-87

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

             EXHIBIT 2.6-2 NINE STEPS TO SUPPORT EXTERNAL EXERCISES

================================================================================
   PHASE            STEPS                      ACTIONS TO BE TAKEN
================================================================================
Pre-        1. Objectives           Take measures to ensure full coordination,
Exercise                            integration, and agreement among the roles,
                                    objectives, and degree of participation of
                                    the FAA and external agencies concerned.
            --------------------------------------------------------------------
            2. Preparations         Attend planning meetings, MSEL conferences,
                                    and implementer conflict resolution
                                    meetings. Prepare FAA inputs to or
                                    modifications of the appropriate exercise
                                    documents which assure that the FAA role in
                                    a given exercise scenario is fully developed
                                    and inclusive of the FAA objectives. In
                                    addition, prepare and present FAA exercise
                                    player briefing(s) to fully develop the
                                    roles and functions of FAA participants.
                                    Briefings, handout information, and training
                                    activities will include exercise scope,
                                    scenario, functions, FAA exercise
                                    objectives, information feedback/data
                                    collection planning, and all aspects of
                                    logistics support (to include security
                                    aspects).
            --------------------------------------------------------------------
            3. Documentation        Review final exercise documentation to
                                    ensure FAA inputs are reflected in the
                                    documentation record.
--------------------------------------------------------------------------------
Exercise    4. Final Checks         Work through final preparation checklist to
Conduct                             establish that immediate pre-STARTEX
                                    conditions are known to the FAA, and fix
                                    problems which have potential impact on FAA
                                    participation.
            --------------------------------------------------------------------
            5. Exercise             Take actions to ensure individual FAA
                                    participants are fully assisted in their
                                    exercise roles. Provide consultation to
                                    integrate FAA functions into exercise play
                                    when appropriate, and to ensure that FAA
                                    expertise is adequately employed to support
                                    objectives. Titan will also provide active
                                    controller services for those areas which
                                    focus on FAA interests and data collection.
            --------------------------------------------------------------------
            6. Record               Provide real-time record of exercise conduct
                                    relative to FAA participation. This will
                                    include periodic assessments and impressions
                                    during the exercise and a "first
                                    impressions" report immediately following
                                    ENDEX.
--------------------------------------------------------------------------------
Post-       7. Collect Feedback     Engage all post-exercise activities,
Exercise                            meetings, and assessments which encompass
                                    FAA participation so as to have a complete
                                    picture available for Step 8.
            --------------------------------------------------------------------
            8. Analysis             Lead, or participate in, all actions needed
                                    to analyze information/data needed to
                                    prepare after-action reports or to answer
                                    questions posed by FAA management.
            --------------------------------------------------------------------
            9. Publish Lessons      Be on the leading edge of exercise
               Learned              after-action reporting, with emphasis on
                                    briefings and reports relative to FAA
                                    participation, and a particular focus on
                                    exercise aspects leading to statements of
                                    lessons learned. Those after-action
                                    statements will be tailored specifically to
                                    FAA participation and could serve as inputs
                                    to the exercise's sponsoring D/A.
================================================================================

                                      2-88
<PAGE>

                                                                    [LOGO] TITAN

2.6.3 CONCLUSION

      The understanding of and approach to Task II is based upon extensive past
and current experience in the kind of external exercises in which FAA
participation could be required. Titan is engaged in technical support for the
full range of exercise scenarios, types of exercises, and level of
participation. Each member of our team is seasoned, practiced, and current in
individual knowledge of the full spectrum of emergency operations. Titan is
prepared to devote the team experience to this procurement.

                                      2-89

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

2.7 TASK III - SUPPORT TO OTHER TECHNICAL SERVICES (REFERENCE SOW PARA 5.4)

      This task directs support to the development or revision of headquarters
and regional emergency plans and associated appendices and SOP's for selected
aspects of FAA Headquarters and regional operations. The elements comprising
Task III are illustrated in Exhibit 2.7-1.

      Tasks I and II provide opportunities to upgrade emergency operations
preparedness by enhanced individual learning, team building, and discovery of
lessons learned which can be folded back into future activities--including
changes to operational planning. Task III provides opportunities to directly
implement lessons learned into the planning documentation and operational
procedures.

                         EXHIBIT 2.7-1 TASK III OVERVIEW

<TABLE>
<S>               <C>                            <C>            <C>                            <C>
--------------------------------------------------------------------------------------------------------

                  ---------------------------------------       ---------------------------------------
                                                    SOW                                           SOW
                  INTERNAL FAA EXERCISES         Para 5.2       EXTERNAL FAA EXERCISES         Para 5.3
                                                  Task I                                        Task II
Training and         -  HQ Only                                    -  HQ Only
Exercises            -  Regions Only                               -  Regions Only
                     -  Combined HQ & Regions                      -  Combined HQ & Regions
                  ---------------------------------------       ---------------------------------------

--------------------------------------------------------------------------------------------------------

<S>                              <C>                            <C>
                                 ---------------------------------------------
                                                                   SOW
                                 OTHER TECHNICAL SERVICES       Para 5.4
                                                                Task III
Operational Planning                -  Operations Plans
                                    -  Associated Appendices
                                    -  SOPs
                                 ---------------------------------------------

--------------------------------------------------------------------------------------------------------

<S>                              <C>
                                 ---------------------------------------------
                                 -  Exercise Coordination Meetings
Exercise Coordination            -  Exercise Document Reviews
and Interface Process               -  DOT
                                    -  FEMA
                                    -  Other D/As
                                 ---------------------------------------------

--------------------------------------------------------------------------------------------------------

<S>                              <C>                                  <C>
                                 ---------------------------------------------
                                 ACTIVITY REPORTS                        SOW
Program Oversight                                                      Para 4.
and Control                         -  Work Plan                      Activity
                                    -  Weekly COTR Status Meetings     Reports
                                    -  Monthly Letter Reports
                                 ---------------------------------------------

--------------------------------------------------------------------------------------------------------
</TABLE>

                                      2-90
<PAGE>

                                                                    [LOGO] TITAN

2.7.1 UNDERSTANDING

      The Titan team has had the benefit of interacting with many members of the
FAA family at the regions, as well as the headquarters. We also have experienced
(with the customer) the step-by-step process of FAA restructuring and
governmental streamlining in the recent past. Our team has studied the
still-evolving impact of decisions on U.S. national emergency planning since the
end of the Cold War. Clearly, as plans and SOP's require refinements due to
lessons learned in the exercise and operational environment, even more relevant
are the changes needed because institutional arrangements are shifting away from
previous roles and missions which had been stable for nearly 40 years. Our team
brings many valuable insights to this planning process as a result of our
broad-based professional backgrounds, the lessons learned from the first series
of regional table-top exercises, and from special projects accomplished in
recent years (i.e., After-Action Reports from Hurricane ANDREW and the
Northridge Earthquake).

      We are keenly aware of the pressing need in emergency operations planning
to identify and define the essential (emergency) function(s) of each participant
supporting CMC operations. The specification of essential functions is a major
requirement of FAA Order 1900.E1. The articulation of essential functions shape
the interactions, the logistics support, and the flexibility of the Emergency
Operations Program. Specification of the functions in a coordinated planning
process insulates the emergency operations system from the kind of duplication
and overlaps which can cause confusion in roles and responsibilities, as well as
other inefficiencies. The scope of the essential (emergency) functions
requirement reaches all through the headquarters and regional environment, where
fundamental organizational changes constantly require adjustments to sustain the
readiness and responsiveness.

                                      2-91

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      FAA Order 1900.1E was updated in July, 1993, and all members of the Titan
team are familiar with the document and understand its importance. The Order
formalized the FAA Crisis Response System, revised the readiness level system,
and added a security alert system.

      FAA Order 1900.1E is constructed to evolve--to absorb change -- however,
some inputs to the Order (such as the essential functions just discussed) remain
as planning "voids" which are missing or are in need of continual refinement.
The same is true for regional planning documents which implement the basic
order. It is in the arena of implementation of Order 1900.1E where much of the
support work is most urgently needed. The table-top exercises for the past few
years have provided one small beginning step. The next sequence of exercises
will (in many cases) provide a chance, for the regions especially, to
validate/test emergency preparedness planning. Refinements will always be
needed, but at this juncture (with all the significant changes in FAA) we are
talking about major work requirements with reduced government staffing levels.

      In addition to experience and insight into the organizational realities of
the FAA, the Titan team is also working with DOD, NCS, FEMA, and others where
adjustments to the post-Cold War and government downsizing are also taking
place. That experience is also extended to field operational levels, as well as
to the state and local jurisdictions. This understanding of external agencies is
helpful to FAA planning in those cases where interaction with other D/As is
evident. Titan's technical support to and participation in joint
military-civilian exercises; our role in training the ERT-N; our experience in
support to FEMA on the FRP, COG plans, and continuity of operations plans: and
the professional background of our team members all combine to provide a unique
concentration of talent to perform Task III.

                                      2-92
<PAGE>

                                                                    [LOGO] TITAN

      Titan has assisted FEMA in the implementation of their National Security
Emergency Preparedness Program and was responsible for indoctrinating and
preparing members of both the National and Regional emergency management teams
to implement their assigned tasks. Titan as the primary trainer for these teams
provided training support which consisted of orientations, team-building
activities, and simulations workshops. Titan has worked closely with FEMA and
the other Department and Agency planners and emergency management leader at both
the national and regional levels.

      In addition to its training experience Titan has also been a leading plans
developer for FEMA in the National Security Emergency Preparedness arena. Titan
developed the outline for a Concept of Operation document for national and
regional continuity of government, coordinated it with 26 Departments and
Agencies and then wrote the final document. The Titan team also authored the COG
Operations plans for both national and regional operations.

      Titan was responsible for the development and execution of a series of
table-tops for the Department of Agriculture State Emergency Boards from all 50
States. These State Emergency Boards manage the USDAs response to the full range
of natural and technological disasters. The table-tops were a part of the USDA
training and exercise program to improve Federal Response Plan operations
throughout the Department. Training consisted of the creation and presentation
of several natural disaster scenarios, and the writing of discussion guides
tailored to each geographic area being addressed. Briefing presentations
included the depiction of the organizational structure supporting the Federal
Response Plan and the responsibilities of various Departments and Agencies
within the FRP.

                                      2-93

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      The Titan team has extensive experience in developing national, regional,
state, and local concepts of operations (CONOPs), operations plans (OPLANs), and
SOP's for interagency functional performance. Titan has provided contract
support to the NCS and the OSTP in the analysis, updating, and revision of
national-level operations, employment and deployment plans. Examples of this
support include the national level emergency operations plans for both the OSTP
and the NCS and the operations plans and SOP's for the Communications Functional
Groups (CFGs) of the National Emergency Management Team (NEMT) and Regional
Emergency Management Teams (REMTs), and the National Telecommunications
Management Structure (NTMS) Government and Industry Operating Centers. These
plans include the scope of emergency operations across the full domestic and
international spectrum.

      The Titan team fully understands that the FAA's Emergency Operations
Program planning actions must provide for the protection of FAA personnel and
facilities to ensure the continued effective operation of the NAS, other
essential functions, and the recovery and reconstitution of the NAS. This
planning effort is especially critical during the evolution of the NAS in the
1990's to a full operational capability. The challenge to FAA planners lies in
balancing the needs of NAS users and the evolving policy decisions (which tend
to promulgate changes, modifications, or upgrades) with the need to rapidly
convert policy to credible plans and operating procedures in a cost-effective
operating environment.

2.7.2 APPROACH

      The methodology to accomplish Task III consists of four defined steps
which are depicted in Exhibit 2.7-2 and discussed below.

                                      2-94
<PAGE>

                                                                    [LOGO] TITAN

                   EXHIBIT 2.7-2 TASK III TECHNICAL APPROACH

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------------

                   ---------------------------------------------------------------------
                                              Lessons Learned
                   (i.e., Operational Experience, Exercises, Workshops, Seminars, Other)
                   ---------------------------------------------------------------------

<S>                       <C>                                 <C>                   <C>
Step 1 ---------------
   Analyze Relevant
  EOP* Documentation      Step 2 -------------------------
and Conduct Interviews            Develop / Revise
----------------------             Documentation
                          --------------------------------
   ----------------
   DOT / FAA Orders           -----------------------
   ----------------                 Headquarters
                                   Plans / SOP's              Step 3 -----------
   ----------------           -----------------------                               Step 4 ----------------
          FAA                                                  Coordinate Draft
    Plans / SOP's             -----------------------         PLANS, Appendices,         Publish Final
   ----------------                   Regional                      SOP's              PLANS, Appendices,
                                   Plans / SOP's              ------------------             SOP's
   ----------------           -----------------------                               -----------------------
    Infrastructure                                            - FAA Headquarters
    Study Critical            -----------------------         - Regions             - Comments incorporated
      Functions               (Associated Appendices)         - DOT/DOD             - Final coordination
   ----------------                                           - Other D/As          - Final distribution
                                 - National Security          ------------------    -----------------------
   ----------------                Emergency
   Input from, DOT,              - Domestic
   FAA, Other D/As                 Emergency
   ----------------           -----------------------

----------------------    --------------------------------

*EOP = Emergency Operations Program

[EOP is based on U.S. National Security Emergency Preparedness (NSEP) Policy -
ensures the FAA shall survive and endure, provides for protection of personnel
and key facilities, and continuity of the National Airspace System (NAS) and
other essential FAA functions.]

-----------------------------------------------------------------------------------------------------------
</TABLE>

      These steps are performed in a sequential manner, each one requiring
completion before preceding to the next step, leading to the final publication
of FAA Emergency Operations Program (EOP) plans, associated appendices, and
SOP's.

2.7.2.1 STEP 1: ANALYZE RELEVANT EOP DOCUMENTATION AND CONDUCT INTERVIEWS. The
required first step in the development of FAA PLANs, appendices, and SOP's is to
review existing FAA and other relevant documentation and to interview selected
FAA offices and other Federal D/A representatives. While Task III allows for
staff studies, special reports, major

                                      2-95

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

review, revisions, or creation of documentation, the key starting reference
documents for this task are:

      -     Department of Transportation Act of 1966 (P.L. 89-70)

      -     Federal Aviation Act of 1958 (P.L. 89-670)

      -     Robert T. Stafford Disaster Relief and Emergency Assistance Act
            (P.L. 93-288, as amended)

      -     The Civil Defense Act of 1950, as amended

      -     Federal Preparedness Circular (FPC) 24, the National Defense
            Executive Reserve, September 24, 1982

      -     FPC 60, Continuity of the Executive Branch of the Federal Government
            at the Headquarters Level During National Security Emergencies,
            November 20, 1990

      -     FPC 61, Emergency Succession to Key Positions of Federal Departments
            and Agencies, August 2, 1991

      -     FPC 62, Delegation of Authorities for Emergency Situations, August
            1, 1991

      -     FPC 64, Continuity of the Executive Branch of the Federal Government
            at the Regional Level During National Security Emergencies, November
            20, 1990

      -     Existing DOT/FAA Orders (i.e., FAA Order 1900.1E)

      -     Existing DOT/FAA EOP PLANs/SOP's

      -     Executive Order (EO) 12656, Assignment of Emergency Preparedness
            Responsibilities

      -     EO 12472, Assignment of National Security and Emergency Preparedness
            Telecommunications Functions

      -     FAA/DOD Plans During Wartime

      -     Federal Response Plan (FRP)

                                      2-96

<PAGE>

                                                                    [LOGO] TITAN

      -     Federal Radiological Emergency Response Plan (FRERP)

      -     National Contingency Plan (NCP).

Subsequent to the readings and assessment of the early Step 1 research effort,
we would propose to interview selected policy makers and managers at FAA and
selected Federal D/As. Setting up the proposed interviews will be done in
coordination with the FAA Project Officer. This should provide the latest
thinking in regards to the functioning of the FAA under EOP conditions and set
the stage for Step 2 where documents are developed or revised. We propose to
provide a working paper report to the FAA Project Officer along with a proposed
outline for the FAA PLANs, Appendices, and SOP's.

2.7.2.2 STEP 2: DEVELOP/REVISE DOCUMENTATION. Using the initial analysis of
current FAA EOP operations as the substantive framework, the Titan team will
develop the draft headquarters and regional PLANs (or supplements) and SOP's.
The regional PLANs/SOP's will contain certain portions that are structured
around basic principles of emergency operations, with emphasis on essential
functions identification and definition. Our intention is to publish a document
capable of standing alone and equally capable of being further tailored to the
needs of the individual regions. What is produced is core material, valid at all
levels, and with authoritative backing. Those document portions that are
mandatory for inclusion and compliance by the FAA regions should be clearly
identified and source authorities shown. Those portions requiring completion by
the regions (or that can be modified at user's discretion) should also be
clearly identified. From the variety of formats and diversity of contents in
current PLANs and SOP's, Titan will coordinate with the FAA Project Officer to
select the best format. Our goal is to ensure the draft documents are
comprehensive enough to insure expeditious coordination

                                      2-97

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

and when directed, implementation. We firmly believe that "bare bones" SOP's
for each FAA EOP CRWG/CRSG (at headquarters or regions) should be developed as
part of this task. The SOP's can be either separate documents or appendices to
the headquarters or regional PLANs. These SOP's would not need to be tailored to
the FAA regions (as the functional requirements remain the same regardless of
the operating environment). As a minimum, these SOP's need to address the areas
of organization, (critical) functions, description of duties, facilities,
reporting formats, coordination, and internal operations.

      Our team has in-depth experience in technical support to the development
of broad documentation (e.g., functionality and interfaces for
telecommunications/information systems architecture, diplomatic and defense
activities during major national crises) and to the development of operational
documentation (e.g., CONOPS/OPLANs in support of FEMA's COG responsibilities).

2.7.2.3 STEP 3: COORDINATE DRAFT PLANS, APPENDICES, AND SOP'S. In this step, a
comprehensive review of all the documentation will be undertaken so as to staff
and review comments from as many users as possible. The FAA regional
headquarters will be critical to the coordination process. Also critical in this
review is the support provided to ESF #1 (Transportation) as part of the FRP and
how FAA supports other response plans, such as the FRERP and the NCP. Other
coordination, at the discretion of the FAA Project Officer, would be with
internal FAA, DOT, DOD, FEMA, and other D/As, as appropriate.

2.7.2.4 STEP 4: PUBLISH FINAL PLANS, APPENDICES, AND SOP'S. Upon completion of
the coordination and review process in Step 3, we will incorporate reviewer
comments, make

                                      2-98

<PAGE>

                                                                    [LOGO] TITAN

necessary modifications, and publish the final versions of the PLANs,
appendices, and SOP's. These documents will be completed in time for at least a
30-day technical review/approval period by the FAA Project Officer. Sufficient
time will be built into this final step to resolve any residual conflicts with
the reviewing parties. At the discretion of the FAA Project Officer, Titan would
be pleased to host a final review meeting to expedite final coordination of
documentation before distribution.

2.7.3 CONCLUSION

      A clear strength of the Titan team is operational experience. That
collective understanding of "operations" as the action component in the
policy-planning-implementation process makes the team ready to produce
immediately -- with any tasking. There will be no need for "spin up" time or
on-the-job training. As professionals in the community of emergency operations
(with a large commitment to exercises and training) our objective is to always
contribute to enhanced procedures in future real world FAA operations.

                                      2-99

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                                                                    [LOGO] TITAN

                           3.0 PROJECT MANAGEMENT PLAN

      TITAN OFFERS A PROVEN PROJECT TEAM, SUBSTANTIAL FAA EXERCISE AND
      OPERATIONAL PLANNING EXPERIENCE, IN-PLACE CONTROLS TO ENSURE A QUALITY
      EFFORT, AND A CORPORATE COMMITMENT WITH READY ACCESS TO CORPORATE
      OFFICERS.

      The Titan Corporation was founded in 1981 as Titan Systems, Inc., by a
group of professionals who wanted to go beyond studies and analysis to systems
development/ integration support of nationally important command and control
systems. Toward that end, Titan expanded through rapid internal growth and
acquisition and established offices across the United States. In 1985, Titan
Systems merged with Electronic Memories and Magnetics Corporation and the Titan
Corporation was formed. The Titan Corporation is now a publicly owned company
listed on the New York Stock Exchange with annual sales of approximately $150
million. It is in the top 500 defense contractors. The corporation, which is
headquartered in San Diego, California, has over 950 employees. Support to FAA
contracts are provided out of the Titan, Reston, Virginia, facility.

      Titan has a well-earned reputation of excellence in the Federal Government
exercise community and a long history of dedicated service to Federal customers
as a System Engineering/Technical Assistance (SETA) contractor, prime
development and integration contractor, and major supplier of communications
equipment and processor subsystems. Its multidiscipline high technology services
to a broad range of clients includes command, control, communications, and
intelligence (C3I); defense/space systems, electro-optical sensors and systems;
expert systems and software; computer engineering and modeling; pulsed power

                                       3-1

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

systems; as well as training, test, and exercise of telecommunications emergency
management staffs. Titan brings a wealth of recent, direct experience in the
field of exercise preparation, conduct, and evaluation for important customers
at the national, regional, state and local levels. The acceptance of a job from
any customer brings the automatic challenge to the entire company's reputation
and continued credibility in the community. Responsiveness to customer needs and
satisfactions brings the responsibility of making a total commitment to the very
best effort the company can provide. As a basic operating principle we strongly
believe in listening closely to best understand each customer's requirements and
then meeting these needs on schedule and within budget. Previous success in
support of the FAA and other diverse clients can be summarized by longstanding
commitments to: superior performance, quality products, responsive services, and
complete professional integrity.

      Dr. Gene Ray, the President and Chief Executive Officer, and Mr. A.E.
Knauf, Jr., the Executive Vice President of the Corporation, are both intimately
familiar with FAA programs and are committed to ensuring resource availability
to, and high caliber performance in this important project.

      Titan's work on a number of contracts, some of which are detailed in
Section 4.0 of this proposal, has required extensive involvement in exercise
design, development, conduct, and evaluation; operational plans and standard
operating procedure (SOP) development; systems control; emergency response
planning support; supporting interagency work and working groups; coordination
techniques; and group processes. Previous and current support to numerous
Federal departments and agencies has expanded our experience base and firmly
enables us to support this procurement.

                                       3-2

<PAGE>

                                                                    [LOGO] TITAN

      Successful support to this effort is further enhanced by the training
expertise resident in our proposed staff. We are currently supporting FEMA's
National Emergency Response Team (ERT-N) training program and in addition to the
FAA, we are currently providing exercise support to FEMA - U.S. Army, DISA and
DOJ (INS).

      Titan's corporate success has largely derived from the skills and
experience of its personnel and the contributions each staff member makes to the
team effort. We are convinced that the personnel cited in this proposal will
continue the pattern of professional success that has been produced for the FAA
and other government clients. Mr. John Chambers and other experienced project
team staff members are totally prepared and able to continue to perform the
tasks of this procurement.

      The remainder of this section is organized as follows:

      -     SECTION 3.1, PROFESSIONAL QUALIFICATIONS, describes our project
            organization and the members of the team and their professional
            qualifications and skills.

      -     SECTION 3.2, RESUMES OF THE TITAN TEAM, presents the resumes of our
            Project Manager, his principal assistant and support staff and Titan
            Corporate Leadership.

      -     SECTION 3.3, TASK ORDER MANAGEMENT, explains Titan's in-place
            procedures for processing task orders that are fully compliant with
            government regulations.

      -     SECTION 3.4, PROGRAM MANAGEMENT CONTROL, details our managerial,
            technical, quality assurance, and fiscal controls that will be used
            to ensure satisfactory completion of this project.

                                           3-3

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                          EMERGENCY MANAGEMENT SYSTEMS

3.1 PROFESSIONAL QUALIFICATIONS (REFERENCE SO-L-5.1.2)

      The Titan project team has been carefully selected and organized to assure
quality support to this effort. Our proposed team and its organization are shown
in Exhibit 3.1-1. The structure of the organization is designed to provide a
project staff that will be responsible for the work and a cadre of personnel
that represent additional Corporate assets that could be made available should
the need arise. The responsibilities assigned to the Project Manager in this
structure are clear and facilitate government direction, coordination, and
oversight. This is basically the same organizational structure currently in
place to support the ongoing FAA NSEP Program. Our aim is to continue to offer
the FAA a proven system of responsive and efficient support to this high
priority project.

                         EXHIBIT 3.1-1 THE PROJECT TEAM

              ----------------------------------------------------

                      -----------------------------------
                          EMERGENCY MANAGEMENT SYSTEMS
                      -----------------------------------
                                  PAUL CARLSON
                                     EVP/GM
                      -----------------------------------
                      -----------------------------------
                        FAA EMERGENCY OPERATIONS PROGRAM
                      -----------------------------------
                                 JOHN CHAMBERS*
                                 PROJECT MANAGER

                                  COLIN HARDING
                      -----------------------------------
                      -----------------------------------
                                  SUPPORT STAFF
                      -----------------------------------
                        JACK CRITTENDEN    LARRY O'DEA
                        HUK HUKKALA        DAVE RAJALA
                        AL NASON           JIM REDINGTON
                      -----------------------------------

               * KEY PERSONNEL

              ----------------------------------------------------

                                       3-4

<PAGE>

                                                                    [LOGO] TITAN

3.1.1 PROJECT ORGANIZATION

      Our team consists of three elements: Corporate Leadership, a Project
Manager, and a Support Staff.

      Experience has shown that the most effective project management structure
consists of a straightforward line organization with a strong Project Manager
who has direct access to Corporate resources, has total responsibility for, and
has complete authority over the successful completion of all assigned tasks. As
can be seen from Exhibit 3.1-1, Mr. Chambers will report directly to Mr. Paul
Carlson, Executive Vice President for Titan Systems Group, who has the authority
to commit company resources.

      Mr. Chambers duties will as a minimum include the following
responsibilities:

      -     Direct all activities of the project organization

      -     Conduct regular meetings with the project management staff and
            periodic reviews to continually monitor the status of the project

      -     Maintain direct liaison with the FAA Project Officer to ensure that
            all performance is responsive to FAA program needs

      -     Attend the start-up meeting, develop a Titan work plan, and attend
            scheduled staff meetings at FAA headquarters

      -     Monitor performance, schedule, and cost using established project
            control procedures

      -     Reallocate and obtain additional resources as required for resolving
            potential problems

                                       3-5

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      -     Resolve all conflicts

      -     Maintain open and continuous communications with the government and
            all team members.

      Mr. Colin Harding has and continues to be the principal Titan staff member
providing support to Mr. Chambers.

      The support staff consists of six people who were chosen because they had
the skills and experience. Additional Corporate resources will also be available
to meet unforeseen requirements and provide additional manpower requirements,
when necessary. An administrative support team with a full range of graphics and
word processing capabilities will also be available.

3.1.2 SKILL REQUIREMENTS

      To determine the personnel skills required to support this effort, we
identified the following skills areas detailed in the RFP:

      -     Exercise development and conduct

      -     General operational plans development

      -     Emergency response planning

      -     Inter-Agency relations

      -     Coordination techniques

      -     Group processes.

                                       3-6

<PAGE>

                                                                    [LOGO] TITAN

      We then analyzed the SOW for implicit skill requirements. We also added
skills based upon our FAA exercise experience and concluded that 21 specific and
essential skills grouped under six categories, were required to support this
effort. To better understand the relationship of specific skills to task
assignments, we created the matrix in Exhibit 3.1-2. By illustrating the
skills-task relationships, in matrix form we found this process to be highly
useful in defining the skills and expertise needed by project personnel.

3.1.3 PERSONNEL SELECTION AND QUALIFICATIONS

      We first determined that a strong Project Manager with an experienced
support staff would best support the effort. Based upon the skills needed to
perform the tasks associated with this effort, we reviewed the qualifications
of over 100 Titan technical personnel. The results were a selection of
specific individuals whose talents matched those skills identified in our
analysis of the SOW. Thus, we have proposed a team that collectively has the
experience that our analysis of the SOW identified as essential. Exhibit
3.1-3 presents our team's experience and its composition. As indicated in
Exhibit 3.1-3, all personnel possess a SECRET or higher clearance. Relevant
experience of the members of our project team is summarized in the following
paragraphs.

3.1.4 KEY PERSONNEL AND SUPPORT STAFF

      We have designated our Project Manager, Mr. John Chambers, as key
personnel. This section briefly summarizes his experience, as well as that of
members of the Support Staff. Complete resumes are in Section 3.2, Resumes of
the Titan Team. Past experience has shown

                                           3-7

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.

<PAGE>
                      Exhibit 3.1-2 Task Skill Requirements

<TABLE>
<CAPTION>
                                                                    ------------------------------------------------------
                                                                                         TASK ASSIGNMENT
                                                                    ------------------------------------------------------
                                                                                  B. Support     C. Support    D. Other
                                                                                 Internal FAA   External FAA   Technical
------------------------------------------------------------------- A. Project    Exercises      Exercises     Services
   SKILL AREAS                      SKILLS *                        Management    (Task I)       (Task II)    (Task III)
--------------------------------------------------------------------------------------------------------------------------
<S>                   <C>                                                <C>          <C>            <C>           <C>
                      Exercise Design                                    -            -              -
                      ----------------------------------------------------------------------------------------------------
     Exercise         Exercise Documentation Development                 -            -              -
  Development &       ----------------------------------------------------------------------------------------------------
     Conduct          Exercise Conduct & Evaluation                      -            -              -
                      ----------------------------------------------------------------------------------------------------
                      Training Aids & Exercise Materials                 -            -              -
--------------------------------------------------------------------------------------------------------------------------
                      Headquarters/Regional Plans/SOP                    -            -              -             -
General Operational   ----------------------------------------------------------------------------------------------------
      Plans           Concept Development                                -                                         -
   Development        ----------------------------------------------------------------------------------------------------
                      Operating Procedures                               -                                         -
--------------------------------------------------------------------------------------------------------------------------
                      Federal Response Plan (FRP)                        -            -              -             -
                      ----------------------------------------------------------------------------------------------------
                      FAA Order 1900.1E                                  -            -              -             -
                      ----------------------------------------------------------------------------------------------------
   Emergency          Emergency Response Operations                      -            -              -             -
   Response           ----------------------------------------------------------------------------------------------------
   Planning           Crisis Management                                  -            -              -             -
                      ----------------------------------------------------------------------------------------------------
                      National/Regional Emergency Planning               -            -              -             -
                      ----------------------------------------------------------------------------------------------------
                      P.L. 93-288 as Amended                             -            -              -             -
--------------------------------------------------------------------------------------------------------------------------
  Inter-Agency        Department/Agency Interface/Interaction            -                           -             -
   Relations          ----------------------------------------------------------------------------------------------------
                      Multiple Agency Planning                           -                           -             -
--------------------------------------------------------------------------------------------------------------------------
                      Meeting Coordination Planning Support              -            -              -             -
  Coordination        ----------------------------------------------------------------------------------------------------
   Techniques         Coordination Processes                             -            -              -             -
                      ----------------------------------------------------------------------------------------------------
                      Department/Agency Rules & Responsibilities         -                           -             -
--------------------------------------------------------------------------------------------------------------------------
                      Seminar/Workshop Development & Conduct             -            -              -
      Group           ----------------------------------------------------------------------------------------------------
    Processes         Training Sessions Conduct                          -            -              -
                      ----------------------------------------------------------------------------------------------------
                      Instructional Aid Development                      -            -              -
--------------------------------------------------------------------------------------------------------------------------
</TABLE>

* SKILLS = Topical knowledge, training, education, and/or experience

                                       3-8

<PAGE>

                                                                    [LOGO] TITAN
                                   SKILL AREAS

                         EXHIBIT 3.1-3 PERSONNEL SKILLS

<TABLE>
<CAPTION>
                                                                    ---------------------------------------------------------------
                                                                                             PROJECT PERSONNEL
                                                                    ---------------------------------------------------------------
-------------------------------------------------------------------    John         Jack        Colin      James       Huk      Al
   SKILL AREAS                      SKILLS *                         Chambers    Crittenden    Harding   Redington   Hukkala  Nason
-----------------------------------------------------------------------------------------------------------------------------------
<S>                   <C>                                                <C>          <C>         <C>        <C>        <C>     <C>
                      Exercise Design                                    -            -           -          -          -       -
                      -------------------------------------------------------------------------------------------------------------
     Exercise         Exercise Documentation Development                 -            -           -          -          -       -
  Development &       -------------------------------------------------------------------------------------------------------------
     Conduct          Exercise Conduct & Evaluation                      -            -           -          -          -       -
                      -------------------------------------------------------------------------------------------------------------
                      Training Aids & Exercise Materials                 -            -           -          -          -       -
-----------------------------------------------------------------------------------------------------------------------------------
                      HQ/Regional Plans/SOP                              -            -           -          -          -       -
General Operational   -------------------------------------------------------------------------------------------------------------
      Plans           Concept Development                                -            -           -          -          -       -
   Development        -------------------------------------------------------------------------------------------------------------
                      Operating Procedures                               -            -           -          -          -       -
-----------------------------------------------------------------------------------------------------------------------------------
                      Federal Response Plan (FRP)                        -            -           -          -          -       -
                      -------------------------------------------------------------------------------------------------------------
                      FAA Order 1900.1E                                  -            -           -          -          -       -
                      -------------------------------------------------------------------------------------------------------------
   Emergency          Emergency Response Operations                      -            -           -          -          -       -
   Response           -------------------------------------------------------------------------------------------------------------
   Planning           Crisis Management                                  -            -           -          -          -       -
                      -------------------------------------------------------------------------------------------------------------
                      National/Regional Emergency Planning               -            -           -          -          -       -
                      -------------------------------------------------------------------------------------------------------------
                      P.L. 93-288 as Amended                             -            -           -          -          -       -
-----------------------------------------------------------------------------------------------------------------------------------
  Inter-Agency        Department/Agency Interface/Interaction            -            -           -          -          -       -
   Relations          -------------------------------------------------------------------------------------------------------------
                      Multiple Agency Planning                           -            -           -          -          -       -
-----------------------------------------------------------------------------------------------------------------------------------
                      Meeting Coordination Planning Support              -            -           -          -          -       -
  Coordination        -------------------------------------------------------------------------------------------------------------
   Techniques         Coordination Processes                             -            -           -          -          -       -
                      -------------------------------------------------------------------------------------------------------------
                      Department/Agency Rules & Responsibilities         -            -           -          -          -       -
-----------------------------------------------------------------------------------------------------------------------------------
                      Seminar/Workshop Development/Conduct               -            -           -          -          -       -
      Group           -------------------------------------------------------------------------------------------------------------
    Processes         Training Sessions Conduct                          -            -           -          -          -       -
                      -------------------------------------------------------------------------------------------------------------
                      Instructional Aid Development                      -            -           -          -          -       -
-----------------------------------------------------------------------------------------------------------------------------------
  Education                                                              MS           MA          MS         MS         MS      MS
-----------------------------------------------------------------------------------------------------------------------------------
  Security Clearance (SECRET or higher)                                  -            -           -          -          -       -
-----------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
                                                                    -------------------------------------
                                                                               PROJECT PERSONNEL
                                                                    -------------------------------------
-------------------------------------------------------------------   Larry         Dave        Paul
   SKILL AREAS                      SKILLS *                          O'Dea        Rajala      Carson
---------------------------------------------------------------------------------------------------------
<S>                   <C>                                                <C>          <C>         <C>
                      Exercise Design                                    -            -           -
                      -----------------------------------------------------------------------------------
     Exercise         Exercise Documentation Development                 -            -           -
  Development &       -----------------------------------------------------------------------------------
     Conduct          Exercise Conduct & Evaluation                      -            -           -
                      -----------------------------------------------------------------------------------
                      Training Aids & Exercise Materials                 -            -           -
---------------------------------------------------------------------------------------------------------
                      HQ/Regional Plans/SOP                              -            -           -
General Operational   -----------------------------------------------------------------------------------
      Plans           Concept Development                                -            -           -
   Development        -----------------------------------------------------------------------------------
                      Operating Procedures                               -            -           -
---------------------------------------------------------------------------------------------------------
                      Federal Response Plan (FRP)                        -            -           -
                      -----------------------------------------------------------------------------------
                      FAA Order 1900.1E                                  -            -           -
                      -----------------------------------------------------------------------------------
   Emergency          Emergency Response Operations                      -            -           -
   Response           -----------------------------------------------------------------------------------
   Planning           Crisis Management                                  -            -           -
                      -----------------------------------------------------------------------------------
                      National/Regional Emergency Planning               -            -           -
                      -----------------------------------------------------------------------------------
                      P.L. 93-288 as Amended                             -            -           -
---------------------------------------------------------------------------------------------------------
  Inter-Agency        Department/Agency Interface/Interaction            -            -           -
   Relations          -----------------------------------------------------------------------------------
                      Multiple Agency Planning                           -            -           -
---------------------------------------------------------------------------------------------------------
                      Meeting Coordination Planning Support              -            -           -
  Coordination        -----------------------------------------------------------------------------------
   Techniques         Coordination Processes                             -            -           -
                      -----------------------------------------------------------------------------------
                      Department/Agency Rules & Responsibilities         -            -           -
---------------------------------------------------------------------------------------------------------
                      Seminar/Workshop Development/Conduct               -            -           -
      Group           -----------------------------------------------------------------------------------
    Processes         Training Sessions Conduct                          -            -           -
                      -----------------------------------------------------------------------------------
                      Instructional Aid Development                      -            -           -
---------------------------------------------------------------------------------------------------------
  Education                                                              MA           BS          MA
---------------------------------------------------------------------------------------------------------
  Security Clearance (SECRET or higher)                                  -            -           -
---------------------------------------------------------------------------------------------------------
</TABLE>

that 2 people fully committed to the project, backed up with a qualified
support staff can support this project as detailed in the SOW. We would also
note that as many as 30 additional exercise knowledgeable surge staff members
could be provided from Titan resources, if an exercise of that magnitude was
directed.

                                       3-9

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.

<PAGE>

      MR. JOHN CHAMBERS has been selected to lead this effort because of his
extensive experience and demonstrated performance as the Project Manager on the
current FAA NSEP Program. He understands the FAA and its mission, the FAA
relationships in the Emergency Operations Program (EOP), and both the Federal
Response Plan and FAA Order 1900.1E. He is well versed in the difficulties that
face local, State, and Federal responders following a major disaster, having
worked with a number of these individuals over recent years on disaster
preparedness exercises. He has more than 25 years of experience in the design,
development, operation, and evaluation of major C3I systems. He has also
designed, developed, documented, and evaluated crisis management exercises and
related activities in support of national-level programs since 1989. Mr.
Chambers is experienced in a variety of challenges within an environment which
include interactions between the White House, many Federal D/As, the Congress,
and the private sector. Add to this 28 years of commissioned service with the
U.S. Air Force, including command of two Strategic Air Command Wings, and you
find an individual ideally suited to perform as Project Manager on this critical
FAA program.

      MR. COLIN HARDING is a major contributor on the current FAA NSEP Program.
As such, he has been involved in the development and conduct of the nine FAA
regional training sessions conducted to date. For all of these sessions he has
served as the lead moderator/facilitator. He has also assisted in the
development of a series of essential functions in support of emergency
operations for the FAA Headquarters which will form the basis for revising the
FAA Emergency Operations Plan. He has also provided exercise and evaluation
support for a number of national level programs in the national security
emergencies and crisis management area.

                                      3-10

<PAGE>

                                                                    [LOGO] TITAN

      SUPPORT STAFF MEMBERS. With over 100 qualified technical employees at its
Reston, Virginia, facility performing on a variety of programs requiring similar
skills, Titan can immediately provide personnel to meet unforeseen requirements
that could arise. Our solid performance record, corporate commitment, and
competent, qualified labor base permit Titan to ensure the continued
availability of the required number of professionals to support this effort in
the exercise and/or operational planning area. Our support staff members have
extensive exercise and emergency management experience. A brief summary of their
experience follows:

      -     MR. JOHN CRITTENDEN is currently the Titan Program Manager of the
            FEMA Exercise Support contract. As such, he is providing training
            and exercise support to FEMA and other Federal D/As participating in
            a wide variety of exercises, including NATO Civil-Military, Chairman
            of the Joint Chiefs of Staff (OJCS), Sponsored Mobilization and
            Mobility and Domestic Nuclear Terrorist events. He is personally
            responsible for the development of exercise concepts and objectives,
            exercise scenarios, control staff instruction, master scenario event
            lists, and the development of schedules which culminate in a set of
            exercise plans. He also has extensive experience in the OJCS
            Exercise Evaluation Program.

      -     MR. TENHO HUKKALA is a line and program manager with over 25 years
            of experience in military and civil planning, training, and
            exercising, including over 12 years in supporting FEMA and other
            Federal D/As with systems, operational, and concept planning,
            training, and exercise design, conduct, and evaluation. He has
            worked extensively with the Federal D/As at National and regional
            levels involved in national security and FRP response. For the past
            two years, he has been the Program Manager for Titan support to the
            U.S. Army-FEMA CSEPP exercise program. As such, he oversees all
            aspects of Titan's exercise

                                      3-11

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

            programmatic, design, conduct, and evaluation support to the
            communities around the eight CONUS Army toxic chemical storage
            locations and the interface of the exercise activity with other
            CSEPP functional activity, e.g., automation, planning, and public
            affairs.

      -     MR. ALAN NASON is an experienced Titan manager responsible for the
            analysis, design, development, and implementation of training
            programs. He has developed and conducted an extensive training
            program for the FEMA ERTs. In doing so, he planned and developed a
            concept and implementation schedule for the program to enhance the
            performance of the ERTs in their emergency response roles.

      -     MR. LAWRENCE O'DEA is a Senior Systems Analyst with over 25 years of
            experience in military and civil planning/training, and exercising,
            including over 10 years in supporting FEMA with systems, operational
            and concept planning and design and conduct of exercises. His
            experience includes the national security, natural disaster, and
            technological hazard arenas. He is familiar with the FRP, NCP, and
            FRERP and their Federal D/As representatives at both the National
            and regional levels. For the past two years, he has been a Titan
            task/site leader for the U.S. Army-FEMA CSEPP exercise program. In
            doing so, he provides exercise design, conduct, and evaluation
            support to the communities around the eight CONUS Army toxic
            chemical storage locations.

      -     MR. DAVID RAJALA has been responsible for the design and development
            of the NCS's NTMRS Reference Series (REDBOOKS). He has also been
            responsible for the preparation of documents and the performance of
            tasks to support pre-exercise planning and training, exercise
            control and evaluation, and post-exercise

                                      3-12

<PAGE>

                                                                    [LOGO] TITAN

            assessments for national level programs. He is experienced in
            conducting national level vulnerability assessments of national
            telecommunications systems and networks. He is also currently
            involved in several automation and systems engineering projects that
            support FAA headquarters.

      -     MR. JAMES REDINGTON is responsible for providing training and
            exercise support to the Department of Justice/Immigration and
            Naturalization Service (DOJ/INS), which focuses on the
            identification of issues that relate to mass immigration situations
            in order to test the Federal Government's response to such
            emergencies. He has also been personally involved in a comprehensive
            review of existing Federal D/As plans as the basis for the
            development of NSEP and Continuity of Government (COG) plans. In
            doing so, he supported FEMA and the rest of the Federal D/A's in a
            total review and integration effort for a comprehensive all-hazard
            preparedness response and recovery planning as part of the Federal
            Response Plan (FRP).

3.1.5  CORPORATE LEADERSHIP

      Mr. Paul Carlson is a Titan Systems Group Executive Vice President and the
General Manager of Emergency Management Systems. He is an experienced line and
program manager and currently oversees much of Titan's support to the Federal
community and all Titan programs in support of Emergency Preparedness. This
includes the current FAA National Security Emergency Preparedness (NSEP)
Program. To ensure the highest corporate commitment to the FAA, Mr. Carlson will
continue to personally provide corporate oversight to this FAA program and will
assure the ready availability of all required assets needed for continued
success.

                                      3-13

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      Mr. Carlson will, as he has done under the current project, support
various tasks. This support has included attending periodic planning meetings
with the FAA Project Officer and the Emergency Operations Manager (ADA-20),
reviewing and contributing to documentation development, and participation
during conduct of the exercises. (Mr. Carlson supported conduct of exercises in
the Southern and Western Pacific Regions under the current contract.) Mr.
Carlson reports directly to the Executive Vice-President of the Titan
Corporation, Mr. A. E. Knauf, who has also pledged his continued support as well
as that of the entire Titan Corporation to this effort.

3.2 RESUMES OF THE TITAN TEAM

      This section presents the resumes of the Titan team. The resumes
illustrate our understanding of the skills and experience necessary to
successfully accomplish project objectives and the unquestionable ability of the
proposed team to do just that. We present the qualifications of our Corporate
Leadership, Mr. Paul Carlson, our Project Manager, Mr. John Chambers, Mr. Colin
Harding who will provide principal support to the effort, and our support staff.

                                      3-14

<PAGE>

                                                                    [LOGO] TITAN

                                PAUL L. CARLSON

                              CORPORATE LEADERSHIP

EDUCATION

M.A., Political Science, Temple University. 1971

B.A., Economics, Arizona State University, 1959

AREAS OF EXPERTISE

      -     Twenty-four years of experience in management, technical
            performance, planning implementation, and operations of tactical and
            strategic C3 systems. Fourteen years experience in planning,
            training, exercise support, and system development for the Federal
            Emergency Management Agency (FEMA) National security/civil emergency
            preparedness program, and FAA NSEP Programs, and numerous JCS/DOD
            training and exercise programs

      -     Designed, conducted, and evaluated exercises in support of
            government organizations at Federal, State, and local levels from
            1981 to present

      -     Developed training plans and conducted training for crisis
            management staffs of civil and military organizations

      -     Over thirteen years of experience in interagency planning and
            coordination and the development of systems, operations, and concept
            plans and implementing procedures

      -     Served as chief planner for Headquarters, U.S. European Command
            Crisis Action Team in support of various contingency operations.

                                      3-15

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

SUMMARY OF RELEVANT EXPERIENCE

      As an Executive Vice President with Titan Systems Group and the General
Manager, Emergency Management System, Mr. Carlson provides management oversight
and direct support to a variety of civil and military emergency preparedness
programs. The focus of division activities includes operational test and
evaluation; exercise design, conduct, and evaluation; communications planning,
operations, and engineering; training and gaming; and system development,
engineering, and integration.

      Since joining Titan in 1982, Mr. Carlson has directly led or participated
in system development and integration efforts related to several C(3) programs
with emphasis on requirements analysis, concept development/planning, and test
and evaluation (T&E) and exercise support. The scope of his activities included
design, conduct, and evaluation of civil participation in various exercises and
required extensive and continuous interaction with the 26 D/As composing the
Federal civil emergency preparedness community.

      Currently, Mr. Carlson provides oversight of the FAA's NSEP Program, the
FEMA Exercise Program, and FEMA/Department of the Army Chemical Stockpile
Emergency Preparedness Program (CSEPP). In addition, he has actively
participated in exercises in each of these areas. For example, for CSEPP, he has
supported exercise design (scenario and MSEL/implementer development), conduct
(response cell member and county controller), and evaluation (county evaluator).

      From 1980 to 1982, Mr. Carlson was a member of the technical staff of The
Analytical Sciences Corporation (TASC) (1980-1982), where he specialized in
civil emergency preparedness

                                      3-16

<PAGE>

                                                                    [LOGO] TITAN

contingency planning and provided technical assistance in the design, conduct,
and evaluation of several major military-civil exercises.

      Prior to joining TASC, Mr. Carlson served 20 years in the U.S. Marine
Corps. His experience included systems and operations planning, command center
operations, crisis management, and training management at increasing levels of
responsibility. Throughout his military career, he was involved in planning,
design, conduct, and evaluation of exercises ranging from battalion up to the
national level such as NIFTY NUGGET, WINTEX, and REFORGER. His crisis management
military experience included serving as the chief planner on the HQ U.S.
European Command Crisis Action Team (1977-1980) for several contingency
operations.

SECURITY CLEARANCE

      Mr. Carlson has a TOP SECRET clearance.

                                      3-17

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.

<PAGE>

                                  JOHN CHAMBERS

                                 PROJECT MANAGER

EDUCATION

Doctorate, Public Administration, (ABD), University of Southern California, 1979

M.S., Systems Management, University of Southern California, 1971

B.A., Pre-Law/Political Science, Ohio State University, 1959

AREAS OF EXPERTISE

      -     More than 25 years of experience in the design, development,
            operations, and evaluation of large technical systems. Ten years of
            experience in the planning, requirements, policy development, and
            inter-agency coordination arenas (i.e., White House, Congress, OSD,
            JCS, Air Force, FEMA, FAA, and State and local operations in Arizona
            and Arkansas).

      -     Over 10 years experience in field supervision, with overall
            responsibility for safety, training, certification, maintenance,
            quality control, personnel management, and command and control of
            large military combat units.

      -     Designed, developed, documented, conducted, and evaluated crisis
            management exercises and related activities in support of government
            organizations since 1989.

SUMMARY OF RELEVANT EXPERIENCE

      Mr. Chambers is currently the Project Manager providing technical services
in support of FAA NSEP Program. He has managed and participated in the seven
headquarters-sponsored regional exercises conducted during 1994. In addition, he
is currently planning and coordinating

                                      3-18

<PAGE>

                                                                    [LOGO] TITAN

seven exercises for 1995, to include the Technical Center, Mike Monroney
Aeronautical Center, and additional regional exercises. He also prepared script
materials used by the Deputy Administrator to make the video tape now shown to
introduce exercise activities. He's authored several papers and news articles
used by the regions in post-exercise activities. He produced a planner's
briefing to show how to identify and define essential functions in direct
support of Order 1900.1E.

      Since joining Titan in 1989, Mr. Chambers has participated in many
activities involving comprehensive command and control hardware and coordination
between many agencies within the Executive Branch of government. He served as
the Titan Program Manager for a National-level, complex test and evaluation
program involving comprehensive command and control hardware and teamwork
between many agencies. In 1993, he authored a comprehensive, detailed handbook
now used as a reference on how to design, implement, and evaluate large test and
exercise activities. In 1993, he also authored a major portion of the first
Federal Emergency Management Agency (FEMA) operational handbook on U.S. civil
agency emergency operations support to NATO.

      Prior to joining Titan, Mr. Chambers served 28 years in the U.S. Air
Force. His experience was balanced between policy level (headquarters
assignments in Congressional Budget processes, systems analyses, weapon system
requirements, and strategy formulation) and field level assignments which
included postings as the Commander of two strategic missile wings.

SECURITY CLEARANCE

      Mr. Chambers has a TOP SECRET clearance.

                                      3-19

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.

<PAGE>

                                  COLIN HARDING

                                 PRINCIPAL STAFF

EDUCATION

M.S., International Relations, University of Southern California, 1981

M.A., Education, University of Southern California, 1969

B.A., Political Science, Knox College, 1963

AREAS OF EXPERTISE

      -     Over 25 years experience in civil-military current intelligence,
            emergency operations, and crisis management planning, training, and
            exercising, including 10 as a contractor supporting Department of
            Defense (DOD), Defense Intelligence Agency (DIA), Federal Emergency
            Management Agency (FEMA), and other Federal D/As.

      -     Served as facilitator/moderator for the first (1992-1994) series of
            Federal Aviation Administration (FAA) regional catastrophic disaster
            response table-top exercises throughout all nine FAA regions.

      -     Served as Program Manager over a period of seven years for a series
            of exercise support and evaluation projects in the areas of national
            security emergencies and crisis management for the DOD, DIA, FEMA,
            and others.

      -     Supported the planning effort to determine essential emergency
            functions within Hq FAA to support revision of FAA Emergency
            Operations Plans.

                                      3-20

<PAGE>

                                                                    [LOGO] TITAN

SUMMARY OF RELEVANT EXPERIENCE

      In support of the FAA's emergency operations program, Mr. Harding has
served as the facilitator/moderator for the first series of nine regional
catastrophic disaster response table-top exercises. These included four
exercises based upon earthquake scenarios, four on hurricane scenarios, and one
on a technological disaster scenario. In addition, Mr. Harding assisted in the
development of the exercise support documentation, to include briefings;
moderators handbooks; and group leader, player, and response handbooks. His
support also included scenario development, development and presentation of
briefings, and development of exercise support documentation.

      Mr. Harding has also served as the Program Manager in support of the
FEMA's national security-related exercise program. This support involved not
only involvement in FEMA exercises, but also FEMA's participation in exercises
sponsored by the Office of the Secretary of Defense (OSD)/Joint Chiefs of Staff
(JCS), and the North Atlantic Treaty Organization (NATO). Previously, Mr.
Harding had served since 1989 as Titan Program Manager for two projects
providing exercise and evaluation support for a number of national-level
agencies in the areas of national security emergencies and crisis management.
His responsibilities included developing all supporting documentation to include
exercise plans, control plans and player guides and handbooks, and post-activity
evaluation reports. He has provided extensive briefing support to a wide range
of customers such as scenario briefings, concept briefings, training and
orientation briefings, after-action and evaluation briefings. In addition, Mr.
Harding was responsible for the development and presentation of numerous
training modules.

                                      3-21

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      Mr. Harding is also the Titan lead for providing emergency operations and
crisis management support to the commercial sector by designing and developing
disaster preparedness, response, and recovery exercises, games, simulations, and
table-tops. These are designed to assist the business and other non-government
sectors to deal with the problems of business and operational continuity in a
crisis situation.

      Prior to joining Titan, Mr. Harding served with the Space Applications
Corporation (SAC) as Project Manager in charge of providing intelligence
exercise design and development to the OSD/OJCS Exercise and Evaluation effort
to the DIA. This included development of scenarios, MSELs and implementers, and
intelligence collection plans, as well as numerous controller, player, and key
player STARTEX briefings for a series of national security events. In addition,
Mr. Harding was the Project Manager responsible for providing exercise and
training support to DIA as part of the Continuity of Defense Intelligence System
(CODIS), as well as Project Manager for providing operational support to FEMA as
part of their Continuity of Government (COG) Program.

SECURITY CLEARANCE

      Mr. Harding has a TOP SECRET clearance.

                                      3-22

<PAGE>

                                                                    [LOGO] TITAN

                               JOHN H. CRITTENDEN

                                 SUPPORT STAFF

EDUCATION

M.A., Criminology and Corrections, Sam Houston State University, 1972

B.A., Sociology, University of Wyoming, 1960

U.S. Army Command and General Staff College, 1977

AREAS OF EXPERTISE

      -     Thirty years of experience in operational planning, training, and
            exercise conduct and evaluation including more than ten years in
            direct support of FEMA and DOD programs.

      -     Managed and provided technical support for the FEMA Exercise Program

      -     Managed and provided technical support for the OJCS Exercise
            Evaluation Program

      -     Four years of experience performing analysis of military command and
            control processes and requirements, baseline architectures, and the
            design and evaluation of logistic aspects of JCS Command and Post
            Exercises.

      -     Performed structured analysis of the command and control processes
            and requirements at Headquarters, Department of the Army for the
            Army Worldwide Command and Control Information Center (AWIS)

      -     Performed in a series of positions of increasing responsibility in
            the U.S. Army including command at the unit level and staff
            positions at battalion, brigade, division, and major command levels
            during 23 years of military service.

                                      3-23

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

SUMMARY OF RELEVANT EXPERIENCE

      From July 1990 to present, Mr. Crittenden has provided exercise technical
support to the FEMA Exercises Division, as a Task Leader and Program Manager. He
has prepared or assisted in the preparation of the full range of documentation
required to support FEMA and other Federal D/As participating in a wide variety
of exercises including NATO Civil-Military, CJCS-sponsored Mobilization and
Mobility, and Domestic Nuclear Terrorist scenarios. In addition, Mr. Crittenden
developed a number of scenarios used in a series of natural disaster-based
exercises for the Department of Agriculture. Mr. Crittenden is also the author
of the FEMA Comprehensive Exercise Program (CEP) Overview, the document which
establishes the new FEMA approach to their entire exercise program.

      Mr. Crittenden provided technical support for the Office of the Secretary
of Defense (OSD)/Joint Chiefs of Staff (JCS) Exercise and Evaluation Program
from July 1987 to July 1990 as Program Manager and Technical Area Specialist.
Support involved preparation of a series of documents required to support each
of the three phases (pre-exercise planning and training, exercise execution, and
post-exercise) associated with OJCS-sponsored Command Post Exercise (CPXs). He
managed the Titan OJCS exercise support contract with responsibilities for
schedule compliance, quality of performance, and cost control and assisted in
the design and evaluation of logistic aspects of CPXs and JCS J-4
mini-exercises.

      Mr. Crittenden also supported the effort to revise the JCS JULLS raw
database, which consisted of over 6,000 files, through rewriting, consolidating,
or eliminating existing lessons learned to create a more useful database. He
also participated in producing a C3 architecture for the Non-Strategic Nuclear
Force (NSNF) Commands and a skeletal worldwide NSNF

                                      3-24
<PAGE>

                                                                    [LOGO] TITAN

architecture. He assisted in revalidating the DCA/USPACOM NSNF C3 Architecture
by applying a postulated nuclear threat against the USPACOM C3 baseline and
assessing its impact on NSNF baseline C3 capabilities.

      Prior to his exercise support, Mr. Crittenden assisted in the AWIS efforts
for the definition of C3I system requirements, technical specifications, and
structured ADP design architectures for the Army's major commands. He
interviewed users on-site and translated user functional requirements into
technical requirements using Yourdon/DeMarco structured design methodology and
performed as Team Leader of the Functional Analysis Team responsible for
analyzing the command and control process at HQDA. He has defined user
requirements and information interfaces and served as a member of the functional
analysis team which identified, evaluated, and documented command and control
requirements. In addition, he served as a project member, responsible for the
development of a revised functional description for HQDA and the Army War
College and assisted in the development of the revised Technical Analysis and
Cost Estimate (TACE) and the systems specifications documents for these sites.

      During his military service, Mr. Crittenden served as an Action Officer
and Chief, Southwest Asia Team, Office of the Deputy Chief of Staff, Logistics,
Headquarters, Department of the Army, where he was responsible to plan, conduct,
and review logistics aspects of Joint and Service plans and actions. He
developed and staffed actions involving USCENTCOM and Third U.S. Army
contingency missions in Southwest Asia and coordinated programs for identifying
and obtaining supplies and equipment to be placed in a unique storage
environment. He also participated in JCS-sponsored CPXs as a member of the
Logistics Readiness Center

                                      3-25

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

element of the Army Operations Center. Other military assignments provided
experience in operations and contingency planning, training, and exercise
conduct and evaluation.

SECURITY CLEARANCE

      Mr. Crittenden has a TOP SECRET clearance.

                                      3-26

<PAGE>

                                                                    [LOGO] TITAN

                                TENHO R. HUKKALA

                                 SUPPORT STAFF

EDUCATION

M.S., Physics (Nuclear Effects Engineering), U.S. Naval Postgraduate School,
  1957

A.B., Mathematics and Physics, Ripon College, cum laude, 1952

U.S. Army War College, 1971

U.S. Army Command and General Staff College 1965

AREAS OF EXPERTISE

      -     Over twenty five years experience in action-oriented management,
            operational analysis, training, and research and development of
            programs dealing with national security and conduct and support of
            combat operations.

      -     Currently serving as Project Manager for exercise support for the
            Chemical Stockpile Emergency Preparedness Program (CSEPP), jointly
            managed by the United States Army and the Federal Emergency
            Management Agency (FEMA).

      -     Managed and directed the support for FEMA in catastrophic earthquake
            response planning and exercises.

      -     Designed, developed, conducted, and evaluated numerous national
            security training and exercise events in support of FEMA's national
            preparedness programs.

                                      3-27

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

SUMMARY OF RELEVANT EXPERIENCE

      From April 1990 to present Mr. Hukkala has organized and managed the
development and coordination of concepts, plans, and procedures for high
priority programs of national significance for which FEMA has lead
responsibility. He led and participated in the design, development, conduct, and
evaluation of training activities and exercises dealing with emergency
preparedness, emergency response operations, and crisis management programs, and
provided extensive assistance and support for the planning and analysis of all
aspects of national security and natural disaster activities at the Federal,
regional, and State/local levels.

      Mr. Hukkala currently serves as Project Manager for exercise support for
the Chemical Stockpile Emergency Preparedness Program (CSEPP). In this capacity,
he oversees and directs the activities of the Titan project staff, which
includes two subcontractors, in the planning, design, development, conduct,
support, and evaluation of joint Federal/State/local exercises at eight chemical
munition storage locations in the continental United States. He has served as
Program Manager in support of highly sensitive national security programs for
FEMA's National Preparedness Directorate and provided expert advice and
assistance concerning operational enhancements for these programs.

      From December 1986 to April 1990 while a member of the System Planning
Corporation (SPC), he organized and led the development and presentation of
numerous FEMA training and exercise events dealing with national security and
disaster response operations to high-level national and regional Federal
officials. Specifically, he was the designer and deputy chief controller of
RESPONSE 89 (August 1989) held in Sacramento, California, which proved to be a
very successful exercise involving a coordinate Federal/State response to a
simulated

                                      3-28
<PAGE>

                                                                    [LOGO] TITAN

earthquake in northern California. In this effort, he was the principal author
of the exercise plan (EXPLAN), players' handbook, controllers' handbook, and
evaluation plan for the exercise, and organized and conducted the pre-exercise
training for players, controllers, and evaluators. He also developed the
concept, design, and EXPLAN for RESPONSE 90, the next in a series of earthquake
response exercises, involving a catastrophic earthquake disaster on the Wasatch
Fault in northern Utah.

      While with SPC Mr. Hukkala also planned and conducted validation sessions
of a specialized FEMA emergency operations computer-assisted training program to
familiarize users with the emergency environment and functional problem-solving
exercises. In addition to the preparation of an authors' guide for
computer-assisted training, he participated in the evaluation, modification, and
documentation of an emergency communications network simulation model.

SECURITY CLEARANCE

      Mr. Hukkala has a TOP SECRET clearance.

                                      3-29

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                                 ALAN B. NASON

                                 SUPPORT STAFF

EDUCATION

Doctoral Student (Ed.D), Adult Education/Human Resource Development, Virginia
  Polytechnic Institute, December 1996

M.S. Curriculum Development and Supervision, Akron University, 1975

B.S., General, United States Military Academy, 1966

AREAS OF EXPERTISE

      -     Over twenty eight years of experience in the analysis, design,
            development and implementation of training programs the last six of
            which have been in direct support of FEMA's National Security
            Emergency Preparedness programs.

      -     Project Leader/Program Manager for training/seminar support for the
            U.S. Department of Agriculture State Emergency Board training
            program.

      -     Primary developer for a program to identify requirements and
            associated strategies for FEMA employee training and management
            development.

      -     Twenty two years experience in the development and implementation of
            training programs for the U.S. Army.

SUMMARY OF RELEVANT EXPERIENCE

      From October 1988 to the present Mr. Nason has developed and conducted a
series of emergency management training workshops for senior and mid-level
members of 26 Federal departments and agencies. He coordinated the media,
content, location, and evaluation

                                      3-30
<PAGE>

                                                                    [LOGO] TITAN

methodology with senior Department officials throughout the Washington, D.C.
area and in the 10 Federal Regions. He developed workbooks and other training
materials used in the workshops and performed as a facilitator for small and
large group discussions. Mr. Nason supervised, trained, and assisted a team with
the development, presentation, and management of over 15 computer-assisted
training lessons using FEMA's Computer-Assisted Training Support System (CATSS).
This included research, writing, and development of lessons; review and critique
of lessons in progress; technical assistance and guidance on creating effective
training; quality assurance checks of final products; and the distribution of
over 1,600 lesson diskettes to the 10 FEMA Regions and 26 Federal departments
and agencies.

      During this period he also planned and developed a concept and
implementation schedule for a program to enhance the performance of FEMA
employees in their day-to-day and emergency response roles. He established an
analysis program, using the Systems Approach to Training, to determine
performance enhancement requirements and associated training strategies that
maximize training resources. Mr. Nason planned and developed a concept for a
management development program for FEMA supervisors that provides for the
identification of management competencies and training sources, and enables
logical and systematic career progression.

      Mr. Nason designed, developed, and conducted a training program for USDA
State Emergency Board members. He developed geographically-based scenarios,
discussion guides, briefings, and all required training materials. He conducted
and facilitated large and small group discussions involving over 120
participants at each of four locations.

                                      3-31

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      During his military career he led a team that developed the Military
Qualification Standards Program using Instructional Systems Design and Systems
Approach to Training techniques. This program served as a task-based training
and performance measurement guide for U.S. Army officers. He managed the design
and establishment of the Army's Combined Arms and Services Staff School at Fort
Leavenworth, Kansas, and pioneered an innovative curriculum using small group
instruction with senior officers as mentors. He also established the major
objectives and topics of instruction. Mr. Nason managed the day-to-day
operations of the U.S. Military Academy Preparatory School's academic, athletic,
logistic, and administrative divisions. He directed a staff and faculty of over
75 professional and wage-grade employees, and streamlined the school's
organization by removing redundant positions and increasing automation. He kept
the school at full strength through effective recruiting and retention programs,
and served as the school's labor relations point of contact and negotiator while
maintaining a healthy labor-management climate. He successfully renegotiated two
contract agreements with the local labor union that included work hours,
conditions of employment and grievance procedures.

SECURITY CLEARANCE

      Mr. Nason has a TOP SECRET clearance.

                                      3-32

<PAGE>

                                                                    [LOGO] TITAN

                               LAWRENCE P. O'DEA

                                 SUPPORT STAFF

EDUCATION

M.A., Administration of Justice, Wichita State University, Wichita, KS, 1977

B.A., Education, Niagara University, Niagara Falls, NY, 1961

U.S. Army Command and General Staff College, Ft. Leavenworth, KS, 1977

AREAS OF EXPERTISE

      -     Over twenty five years of experience in the development, management,
            and evaluation of complex C3 systems.

      -     Conducted, led, and supervised a variety of SETA tasks for FEMA NSEP
            programs

      -     Extensive experience in military and civilian systems planning and
            operations planning

      -     Controller/evaluator and planner experience in military and civil
            preparedness exercises

      -     Conducted system level, functional, and personnel/training
            requirements analyses

SUMMARY OF RELEVANT EXPERIENCE

      From October 1984 to present Mr. O'Dea has supported FEMA with systems,
operational and concept planning and design and conduct of exercises. He is
currently serving as a task/site leader for the U.S. Army-FEMA Chemical
Stockpile Emergency Preparedness Program (CSEPP) Exercise Program. As such he
provides exercise and evaluation support to

                                      3-33

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

joint FEMA-U.S. Army efforts to enhance emergency preparedness at and around
eight CONUS Army sites storing chemical munitions. He plans exercises, prepares
EXPLANs, COSINs, MSEL/Implementers, and other documentation, and supports the
conduct of planning meetings and exercises. He also facilitates the conduct and
documenting of evaluations. Mr. O'Dea has provided SETA support to FEMA in the
development of Federal Civil Domestic all-hazard emergency response
capabilities. He reviewed the Federal Response Plan for needed systems
engineering and information systems support and enhancements, and assisted in
defining a multi-mission information processing and exchange architecture.

      He has provided support to the FEMA Office of Civil Defense in the
development of a methodology to document and measure State and local government
emergency preparedness capability. In doing so he defined requirements and
developed and implemented a design for the overall evaluation and assessment
program and its supporting automation. Mr. O'Dea developed requirements,
concept, and design for a supporting exercise program and revised the EXPLAN and
EVAL PLAN, finalized the MSEL, and acted as controller/evaluator for CIVEX-90.
Finally he evaluated specific programs and programmatic guidance for consistency
with the new methodology.

      Mr. O'Dea provided support to FEMA for emergency management team
development and training at the Federal National and regional levels. He
identified and documented requirements for a regional emergency response
capability and authored/coordinated research and preparation of emergency
response-related issue papers. He also authored a document that described the
current status of the domestic emergency management infrastructure at Federal

                                      3-34
<PAGE>

                                                                    [LOGO] TITAN

regional, State, and local levels of government. During exercises he served as a
member of the domestic response cell in NSEP exercises.

      Mr. O'Dea provided functional and requirements analysis and OPLAN and
documentation support to FEMA for emergency preparedness/C3 program development.
He has conducted requirements analysis and definition on a variety of personnel
and training topics. He was responsible for the development of program
reliability standards for emergency team members. Mr. O'Dea developed the
training standards for emergency team members and was the primary/contributing
author to OPLANs, OPLAN Annexes, and implementing SOPs for emergency response
team functions. He also evaluated supporting/implementing OPLANs and SOPs, and
exercise and evaluation documents for content and consistency with system-level
developmental documentation. Finally he conducted tabletops to instruct and
train emergency response team members.

      While a member of the U.S. Army he had command responsibility for
operations and continuous planning, testing, and training, to include those
related to Army ground responsibility in the Washington, D.C. area. He developed
area-oriented OPLANs in support of the White House and Vice President's
quarters, DOD and HQDA COOP, and response to nuclear and chemical
accidents/incidents.

SECURITY CLEARANCE

      Mr. O'Dea has a TOP SECRET clearance.

                                      3-35

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                                JAMES REDINGTON

                                 SUPPORT STAFF

EDUCATION

M.S., Counseling and Guidance, Troy State University, 1973

B.A., Psychology, Troy State University, 1971

U.S. Army Command and General Staff College, 1982

AREAS OF EXPERTISE

      -     Twenty-three years of operations and planning experience, including
            the development of plans and concepts, review and analysis of
            existing plans including continuity of government, national security
            emergencies, and disaster response.

      -     Eight years of concentrated activity in crisis management, command
            and control, exercises, simulations and gaming design.

      -     Four years as the primary contractor to the Federal Emergency
            Management Agency in support of the Federal Response Plan and Mass
            Immigration Emergency Plan, including the development of the
            Incident Annex to both plans.

      -     Exercise support to the Department of Justice and the Federal
            Emergency Management Agency for the Federal Response Plan and Mass
            Immigration Emergency Plan, including the development of the
            Incident Annex to both plans.

                                      3-36
<PAGE>

                                                                    [LOGO] TITAN

SUMMARY OF RELEVANT EXPERIENCE

      Mr. Redington has extensive experience in the areas of operations planning
and exercise design, conduct, and evaluation. Since 1988, he has been involved
in exercise and planning activities that involve interagency coordination
between the departments and agencies of the Federal government, Federal and
Regional levels of government, and Federal and State/local governments.

      For the past four years, Mr. Redington was the program manager for the
Federal Emergency Management Agency's planning support and technical assistance
contract. This effort dealt with the Federal Response Plan, continuity of
government plans, and continuity of operations plans. In addition to plan
development, Mr. Redington helped develop the concepts of operations for several
plans dealing with national security emergencies. Additionally, he wrote a
generic planning guide and operations plan format for use by the Federal
departments and agencies.

      Mr. Redington also provided support to both the Interagency Advisory Group
and the Annex Planning Leaders. The Interagency Advisory Group is composed of
over twenty-six emergency planners from departments and agencies who deal
primarily in the areas of national security. The Annex Planning Leaders, is also
a multi-department/agency planning body but whose focus is on the Federal
Response Plan. Mr. Redington developed the Northridge Earthquake Summary Report
for the Catastrophic Disaster Response Group. He also attended the monthly
meetings of the Annex Planning Leaders and subsequently produced the minutes for
each meeting. Because of his monthly support to both of the two primary Federal
planning communities and their various working groups, he has an extensive and
current knowledge of

                                      3-37

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

the interagency planning process, the interagency planning community, and the
current cross cutting issues being explored.

      Mr. Redington is currently managing the Department of Justice effort to
exercise the Mass Immigration Emergency Plan. This plan, similar to the Federal
Response Plan, is a multi-department and agency coordinated response to an
emergency. The level of effort involves the development, conduct, and evaluation
of a series of one-day tabletop seminars and two-day tabletop exercises to be
conducted in Washington, D.C. and in Florida. Mr. Redington has been involved in
this effort since its inception, and is developing a series of seminars and
tabletop activities to exercise the Incident Annex.

      In addition to his current experience with the Federal Response Plan, Mr.
Redington has extensive experience in the areas of gaming, tabletops, and
exercise design, conduct, and evaluation. As Chief of the Command Post Exercise
Branch, United States Central Command from June 1983 to April 1986, Mr.
Redington was responsible for the design and development of exercise plans for
national level and compartmented exercises. He was the primary action officer
for a command post exercise requiring the movement of over 30,000 personnel and
exercise support equipment. While serving as a consultant to the Federal
Emergency Management Agency from May 1988 to May 1989, he developed a five-year
Gaming and Exercise Plan, the regional five-year plan, and a gaming program
consisting of 14 functional group games and national exercises. Mr. Redington
served as FEMA's primary point of contact to numerous inter-agency coordination
and planning groups and participated in other Federal D/A training and exercise
events.

                                      3-38

<PAGE>

                                                                    [LOGO] TITAN

      Since joining Titan in 1989, Mr. Redington has supported the Federal
Emergency Management's operational support effort in which he was responsible
for the development of a comprehensive training program for regional emergency
management teams. He developed interactive workshops dealing with national
security emergency preparedness and coordinated training of over 800 personnel
with twenty-six departments and agencies and ten regional offices. Mr. Redington
analyzed emergency preparedness planning conducted by departments and agencies,
developed training materials in support of national security emergencies, and
was responsible for training program evaluation.

SECURITY CLEARANCE

      Mr. Redington has a TOP SECRET clearance.

                                      3-39

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                                  DAVID RAJALA

                                 SUPPORT STAFF

EDUCATION

B.S., Business Management, American Technological University, Killeen, TX, 1976

U.S. Army Command and General Staff College, Fort Leavenworth, KS, 1981

U.S. Army Field Artillery Officer Advanced Course, Fort Sill, OK 1975

U.S. Army Rotary Wing Officer's Aviation Course, Hunter AAF, GA, 1970

AREAS OF EXPERTISE

      -     Over twenty eight years of experience in communications and ADP
            related programs with the last eight in direct support of the
            National Communications System (NCS), FEMA and the FAA.

      -     Developed national interest telecommunications documentation for use
            by the twenty-six departments and agencies as well as the ten FEMA
            Regions.

      -     Conducted national telecommunication damage assessments used in
            conjunction with the development of training exercises and plans.

      -     Currently serving on a team that is providing automation and systems
            engineering support to FAA Headquarters.

SUMMARY OF RELEVANT EXPERIENCE

      Mr. Rajala is currently supporting FAA Headquarters with automation and
system engineering assistance. Additionally over the last six years Mr. Rajala
authored for the NCS the National Telecommunications Management Reference Series
(NTMRS) which is a series of

                                      3-40
<PAGE>

                                                                    [LOGO] TITAN

technical references on national-interest telecommunications systems/networks to
support emergency telecommunications management activities for the federal
government departments and agencies and the ten Standard Federal Regions. He has
served as task leader and lead technical analyst responsible for the planning
and development of all aspects of document development. He collected and
validated detailed information on fifty-six commercial and government
telecommunications systems encompassing the cellular, switched voice, data, high
frequency radio, satellite, and broadcast segments. Mr. Rajala has also
developed telecommunications baseline assessments for the NCS. The
telecommunications baseline assessments provided a dependable first-order
assessment of CONUS telecommunications facilities to determine vulnerability,
survivability, and connectivity of the Nation's critical networks following a
catastrophic event. He planned, designed and implemented a microcomputer ADP
system to establish a baseline of national telecommunications assets. He also
designed and implemented microcomputer software to assess nuclear effects on the
same assets.

      Mr. Rajala has provided technical support to the OJCS Exercise Evaluation
Program which involved the preparation of documents and the performance of tasks
to support pre-exercise planning and training, exercise control and evaluation,
and post-exercise control and evaluation, and post-exercise assessments
associated with JCS exercises. He managed the ADP aspects of exercise design,
control and evaluation and designed and implemented microcomputer software tools
to aid in the development of MSELs, implementing documents, COSIN and the Joint
Universal Lessons Learned System (JULLS) of the Joint Staff. In conjunction with
the JCS JULLS lessons learned program he guided the development of a
microcomputer expert system

                                      3-41

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

that successfully automated the process of adding retrieval keywords to the
JULLS lessons learned program.

      Mr. Rajala has also support the Defense Information System Agency. He
co-authored a test plan to evaluated the Nuclear Planning and Execution System
(NPES) and other ADP systems used to perform post-execution monitoring of the
Single Integrated Operations Plan (SIOP). He validated and verified the
databases and processing algorithms used in the NPES and non-NPES hardware and
software used to follow the SIOP.

SECURITY CLEARANCE

      Mr. Rajala has a TOP SECRET clearance.

                                      3-42

<PAGE>

                                                                    [LOGO] TITAN

3.3 TASK ORDER MANAGEMENT

      Titan recognizes the work in support of this effort will be conducted
under the task order method and our in-place methodology for processing task
orders is fully compliant with FAA requirements. Titan has established detailed
procedures to effectively manage the task order process and these procedures
address each technical and administrative requirement throughout the life-cycle
of the task order. Titan will respond to the FAA contracting officer's draft
task assignment with a cost estimate that includes labor hours, travel and per
diem, and other direct costs. This will be followed by an official authorized
copy which will allow Titan to begin work. The Titan contracting officer will
acknowledge this authorization by signing and returning one copy to FAA within
five days. Upon completion of the task, Titan will provide a breakdown of costs
and labor hours expended that will serve as the basis for the final task
assignment audit.

      Our procedures, illustrated in Exhibit 3.3-1, begin with our receipt and
logging in of the task order issued by the contracting officer. The Titan
Project Manager will review each new task order and make an initial assessment
of the resources needed to perform the work. A principal staffer may be
assigned, and he or she will develop a detailed task performance plan that will
be reviewed and approved by the Project Manager and will serve as the basis upon
which the cost proposal and final work plan are prepared. Once this process has
been completed, Titan and government managers will have a sound basis for
monitoring and controlling subsequent work.

                                      3-43

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

               EXHIBIT 3.3-1 TITAN TASK ORDER MANAGEMENT PROCESS

<TABLE>
<S>                            <C>                            <C>                            <C>
-------------------------------------------------------------------------------------------------------------------------------

-------------------------      -------------------------      -------------------------
          Titan                          Draft                       Contracting
     Project Manager      ----        Task Order         ----         Officer &
-------------------------               Request                 Cognizant Proj. Off.
                               -------------------------      -------------------------
            |
            |
            |
-------------------------      -------------------------      -------------------------      -------------------------
         Analyze                        Develop                        Define                        Determine
      Task Request       ----       Technical Plan       ----      Schedules and        ----         Task Staff       ----|
-------------------------      -------------------------              Products               -------------------------    |
                                                              -------------------------                                   |
                                                                                                                          |
- Assign staff to do the       - Define potential             - Determine schedules          - Identify skill mix         |
  plan                           problems                                                                                 |
                                                              - Determine milestones         - Identify candidates        |
- Identify goals/              - Define subtasks and                                                                      |
  objectives                     travel                       - Define all products          - Select task team           |
                                                                                                                          |
- Determine constraints        - Define process of            - Specify Government           - Establish level of         |
  and limitations                execution                      deliverable                    effort                     |
                                                                                                                          |
- Document assumptions                                                                                                    |
                                                                                                                          |
                                                                                                                          |
                                                              -------------------------      -------------------------    |
                                                                   Proj. Off. and                   Develop and           |
                                                                    Contracting        ----         Submit Cost       ----|
                                                                       Officer                        Proposal            |
                                                              -------------------------      -------------------------    |

                                                               - Official Task Order          - Budget

                                                               - Perform task                 - Review Plan

                                                               - Submit final actual          - Plan Approval
                                                                 cost

                                                               - Proj. Off. and
                                                                 Contracting Officer

                                                               - Final Task Assignment
-------------------------------------------------------------------------------------------------------------------------------
</TABLE>

      Titan has repeatedly and successfully used this task order planning
process to develop a detailed step-by-step procedure to ensure that all aspects
of the task have been carefully considered prior to developing costs and
schedules and beginning work. Titan manages by treating each specific project
task as an entity that can be controlled and measured, thus ensuring

                                      3-44
<PAGE>

                                                                    [LOGO] TITAN

positive control and responsive project execution. To achieve this, the
initiation and control process is formal and precise and will be in strict
compliance with FAA Project Officer instructions.

3.4   PROJECT MANAGEMENT CONTROLS (REFERENCE SO-L-5.1.2 AND SOW PARAGRAPH 4)

3.4.1 GENERAL

      As stated earlier Titan will manage this project using existing, proven
procedures. Key aspects of this process will provide to the FAA:

      -     Corporate commitment from Titan to the successful completion of the
            project

      -     Clear-cut lines of project responsibilities

      -     A Titan management/technical team with the skills necessary to
            fulfill project requirements--we have selected and committed a
            highly experienced team with the precise skills needed for this
            project

      -     Complete control and tracking of technical work, schedules, and
            resources on a task-by-task basis

      -     Quality assurance reviews of deliverables

      -     Close coordination with FAA's Project Officer

      -     Continuous and open communications.

      The procedures will be implemented by an experienced staff under the
direction of a proven manager. As stated earlier, the Project Manager for this
effort will be Mr. John

                                      3-45

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

Chambers, an experienced line and program manager. He brings with him an
in-depth understanding of emergency preparedness and contingency programs and,
as the current Project Manager of the FAA NSEP Program, a deep appreciation of
the role and missions of the FAA. As Project Manager, Mr. Chambers is
responsible for the performance, cost, and schedule as well as for line
management with its inherent authority over all personnel assigned to this
project. The following paragraphs will detail the processes and procedures the
Project Manager will employ to manage this project.

3.4.2 PROJECT MONITORING

      Mr. Chambers will actively monitor the status of the technical effort
against a detailed work plan developed for this effort. The work plan will
contain the task performance schedules, including the start and completion dates
at the subtask level and the estimated staff hours. All active tasks,
interdependencies, schedules, and staffing allocations will be reviewed on an
actual versus planned basis. At the conclusion of this review, the Titan Project
Manager will apprise the FAA Project Officer of any issues and proposed
resolutions. The specific status of any ad hoc tasks will also be reviewed.
These reviews are intended to accomplish the following objectives:

      -     Provide management visibility into the technical, cost, and schedule
            status of all active tasks

      -     Highlight major accomplishments

      -     Share new approaches that contribute to the project

      -     Identify all technical issues and risks that may adversely affect
            the achievement of overall objectives.

                                      3-46
<PAGE>

                                                                    [LOGO] TITAN

3.4.3 COST MANAGEMENT

      Titan has developed management methods and procedures suitable to this
type of effort and will apply DELTEK, its modern management information system
to this project. This system integrates all costs associated with the project
and produces weekly reports itemizing and summarizing all labor, travel,
consultant, and other direct costs. The system also provides a variety of
reports and cost and expenditures analyses. Of particular interest are the Job
Status Reports that provide a measure of progress in terms of budgeted cost
against work performed at the contract level and individual task level. This
capability allows Titan to manage costs in accordance with work breakdown
structure (WBS) methods. We understand that all travel shall be approved by the
FAA COTR as appropriate and supported by FAA task orders.

      Monthly cost reports and project performance reports will give the Project
Manager a basis for:

      -     Identifying progress

      -     Identifying problem areas

      -     Identifying trends

      -     Initiating corrective actions

      -     Predicting final cost to complete

      -     Meeting cost requirements

      -     Preparing reports for government monitoring.

                                      3-47

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

3.4.4 ACTIVITY REPORTING (REFERENCE SOW PARAGRAPH 4)

      Task control and reporting are a combination of monitoring tasks and
documenting efforts in frequent oral and written reports. The Project Manager's
Weekly Task review examines the status of each task and checks technical
progress and problems, expenditure of staff hours, status of documentation and
deliverables, and readiness for the following week's efforts. The status is
compared to the government-approved work plan to ensure that momentum is
maintained. It establishes the framework for performance from start to finish.
Major tracking milestones are established to ensure performance and provide for
government review and input. Based on these reviews, accurate and timely
information is available to report to management and to the government. The
Project Manager will discuss the status of the project weekly with the FAA
Project Officer. These discussions will stress the status of the work. All
time-sensitive information will be immediately provided to the FAA Project
Officer. These reviews allow the Project Manager to prepare biweekly individual
work plans for his staff to help ensure each person knows exactly what he or she
is expected to work on and how many hours are to be devoted to each task.

      Monthly letter reports will be prepared and submitted in accordance with
the requirements of the Request for Proposal. They will include:

      -     A GENERAL STATEMENT covering any matters that apply to the contract
            as a whole

      -     FOR EACH TASK:

            -     A SUMMARY OF PROGRESS: deliverables submitted, achievements,
                  work performed, and meetings or other events attended during
                  the preceding month

                                      3-48
<PAGE>

                                                                    [LOGO] TITAN

            -     PROBLEMS AND CORRECTIVE ACTIONS: any problems encountered that
                  may impact on progress and/or task performance, plus
                  corrective actions taken or proposed

            -     PLANNED ACTIVITIES: work on the task that is planned for the
                  following month, including submission of any deliverables that
                  will be due

            -     A FINANCIAL SUMMARY: a summary of labor hours, labor dollars,
                  and other charges for the task for the preceding month

      -     A FINANCIAL SUMMARY FOR THE TOTAL CONTRACT, which results from
            adding up all the charges for the individual tasks and comparing
            this with planned costs. Graphs showing cost incurred versus planned
            cost, and effort (work hours expended versus work hours projected)
            will be included.

      We can also provide the complete status of each open task order, if
desired. This information would include:

      -     Progress against each task/task order

      -     Estimates of percentage of work completed by task/task order

      -     Cumulative percentage of work completed by task/task order

      -     Changes in the schedule of deliverables and reasons

      -     Summary of substantive information derived from meetings and
            conferences held in conjunction with the contract

      -     Summary of any problem areas that require government assistance or
            resolution

      -     Identification of any significant item(s) that may result in failure
            to meet the schedule of deliverables.

                                      3-49

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      Titan recognizes that reporting to the government is necessary to the
identification and resolution of problems and to tracking achieved versus
projected progress. The FAA Project Officer will be kept informed of the status
of this effort through formal progress reports as required by the contract and
by informal personal reporting on a regular basis to assist him in carrying out
FAA management obligations. Monthly letter reports that summarize the
accomplishments during the period and identify any issues and proposed
resolutions will be submitted. A final report will be submitted to document and
summarize the results of each task order as well as the entire contract and will
include recommendation and conclusions based upon the results obtained.

3.4.5 QUALITY ASSURANCE MEASURES

      Titan is committed to technical excellence. Proven techniques will be
employed to supplement the weekly meetings and monthly reports throughout the
contract period to ensure that the technical products and deliverables are
complete, accurate, and usable. They are:

      -     A second-level review of all products delivered to the FAA

      -     In-house reviews of key products by corporate leadership

      -     Scheduled progress review for the FAA Project Officer and FAA staff.
            We propose to conduct these reviews at the convenience of the
            government and recommend they be held at least quarterly.

                                      3-50
<PAGE>

                                                                    [LOGO] TITAN

3.4.6 CORRECTIVE ACTIONS

      Our approach to the resolution of problems is to define the problem,
assign responsibility for resolution, track progress, and follow-up on action
items. Central to problem identification is the spirit of open reporting that we
encourage and demand of our Project Staff. We expect our staff to be frank and
candid, to report status realistically, and not to gloss over the problems. The
Project Manager will act in a similar manner when reporting the status of the
effort to the FAA Project Officer, establishing a relationship founded on mutual
trust and candid personal interaction. Titan is proud of its reputation for
honest, forthright dealings and believes such a proven working relationship is a
definite advantage to both Titan and the government.

      Quality control procedures and detailed scheduling notwithstanding,
problems may arise that require prompt corrective action. Upon identifying a
major problem area, the Project Manager will evaluate possible solutions,
coordinate appropriate project staff with, and notify the FAA Project Officer.
The schedule and cost impact will be analyzed, the results evaluated, and a
recovery strategy formulated. Senior Titan leadership will participate with the
Project Manager and FAA personnel as required to select an appropriate and
mutually agreed upon solution to the problem. Titan's organizational philosophy
of ensuring project managers direct access to senior leadership, who have
personal knowledge of their projects, ensures rapid decisions on appropriate
corrective action where needed and fosters good customer relations through
immediate management attention to the customer's needs.

                                      3-51

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                                                                    [LOGO] TITAN

                        4.0 PREVIOUS RELATED EXPERIENCE

      FOR OVER 12 YEARS, TITAN HAS SUPPORTED FEDERAL GOVERNMENT CUSTOMERS IN
      THEIR EMERGENCY MANAGEMENT PLANNING AND EXERCISING EFFORTS AND WE CONTINUE
      THIS OUTSTANDING RECORD OF SUCCESS WITH EMERGENCY PREPAREDNESS RELATED
      CONTRACTS.

      Titan's outstanding reputation in support to emergency operations
management is built on a firm foundation of team experience. The experience
rests on a commitment to understand the big picture (mission) and to know the
details (SOPs and Checklists). The record of success is built on a thorough
understanding of the many bridges between the two. Exhibit 4.1-1 illustrates the
essential elements needed to provide the technical support called for in Tasks
I, II, and III, and summarizes the experience that we bring to this procurement.

                    EXHIBIT 4.1-1 TECHNICAL SUPPORT SPECTRUM

ORIENTATION
  TRAINING                                                         MISSION
TEAM BUILDING                                                    PERFORMANCE

                            EXERCISES
                                                               Observe Patterns
                                                                    and
GAMING                     Identify Issues

                                                                   EXERCISES
                                                                 Specify Fixes

SIMULATIONS    DESIGN, DEVELOP, DOCUMENT, COORDINATE,
                 MANAGE, TRAIN, SUPPORT, EVALUATE

               - REFERENCE LIBRARIES  - PLANNING DOCUMENTATION
               - DATABASES            - REPORTS
               - FLY AWAY KITS        - HANDBOOKS
SEMINARS       - OPLANS               - MANUALS
               - SOPS                 - DATA COLLECTION
               - CHECKLISTS             - FORMS AND TECHNIQUES

                                ^
                                |

WORKSHOPS    < -------   LESSONS LEARNED   < -------               EXERCISES
                                                                Validate Mission
                                                                   Performance

                                       4-1

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      Our team experience is deeply rooted to every aspect of the illustration.
Titan knows that the family of preparedness actions (e.g., workshops, seminars,
simulations, gaming, and various categories of exercises) is successful when the
essential functions are trained and performed with the mission in clear focus.
Titan also knows that expertise in exercise design is rooted in operational
experience which is tied to coordinated planning and documentation (e.g.,
checklists, SOPs, fly-away kits, report requirements). Titan deeply understands
the critical importance of a systematic approach to capturing lessons learned
and folding them back into the learning and team building cycle, with clear
linkages to real world operations.

      Based upon our long-term related experience, Titan understands the
authorities, plans, and procedures and has the field experience needed to assist
the FAA in the planning for the Federal response to catastrophic
natural/technological disasters as required by the Federal Response Plan (FRP).
Titan is ready to continue the challenge of the FAA Emergency Operations
Program, and we offer this relevant experience as testimony to our ability to
successfully perform all tasks.

      In this Section, we demonstrate our relevant prior and current experience
related to the activities in the SOW. Below, we summarize our experience by
task, with reference to specific contracts, whose details follow in Section 4.2.

                                       4-2
<PAGE>

                                                                    [LOGO] TITAN

4.1   DIRECT RELATIONSHIP TO SOW (REFERENCE SO-L-5.1.1 AND SOW PARAGRAPH 5)

4.1.1 Task I - SUPPORT INTERNAL FAA EXERCISES

      -     Titan is currently providing training and exercise support to the
            FAA under the FAA NSEP Program contract (see contract #1) in Section
            4.2).

      -     We are providing training support to FEMA's National Emergency
            Response Teams (ERT-Ns) (see contract #2).

      -     We have provided training; operational planning; and test, exercise,
            and evaluation support to the Office of the Joint Chiefs of Staff
            (OJCS) for international, national, and separate command exercises
            (see contract #8).

      -     We have provided engineering, test, exercise, and evaluation support
            on a stand-alone basis for the Defense Information Systems Agency
            (DISA) and the National Communications System (NCS) (see contract
            #6).

      -     We have, under previous contracts, provided the entire range of
            stand-alone exercises involving 26 Federal departments/agencies
            (D/As) at the national, regional, and State/local levels (see
            contract #7).

      -     We have, under FEMA contracts, provided a full range of training
            services to almost all Federal D/As, including the indoctrination
            and preparation of members of national and regional emergency
            management teams to implement their assigned tasks in case of a
            national emergency (see contract #3).

                                       4-3
Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

4.1.2 TASK II - SUPPORT FAA PARTICIPATION IN EXERCISES INVOLVING EXTERNAL
      AGENCIES

      -     Titan is providing training; and exercise design, conduct, and
            evaluation support to the U.S. Army-FEMA Chemical Stockpile
            Emergency Preparedness Program (CSEPP) (see contract #5).

      -     We are currently providing training and exercise support to FEMA and
            other Federal D/As participating in a wide variety of exercises,
            including NATO Civil-Military. CJCS-Sponsored Mobilization and
            Mobility, and Domestic Nuclear Terrorist events (see contract #2).

      -     We have supported the NCS with a complete range of exercise support
            at the national, regional, and telecommunications industry levels
            and have provided support in the testing and evaluation of the
            National Telecommunications Management Structure (NTMS) (see
            Contract #6).

      -     Titan is currently supporting the NCS in the test and exercise of
            the new Government Emergency Telecommunications Service (GETS) which
            will provide emergency access and specialized processing in local
            and long-distance telephone networks for authorized users (see
            contract #6).

      -     Titan is providing to the Department of Justice/Immigration and
            Naturalization Service (DOJ/INS) exercise support focusing on the
            identification of issues that relate to mass immigration situations
            in order to test the Federal Government's response to mass
            immigration emergencies (see contract #2).

                                       4-4

<PAGE>

                                                                    [LOGO] TITAN

4.1.3 TASK III - OTHER TECHNICAL SERVICES

      -     Titan completed, in November 1994, two special projects which
            identified and defined specific FAA emergency essential functions
            per Order 1900.1E (see contract #1).

      -     We have supported FEMA and the Federal D/A's in a total review and
            integration effort for comprehensive all-hazard preparedness
            response and recovery planning, as part of the Federal Response Plan
            (FRP) (see contract #4).

      -     We have, under several contracts with FEMA, supported the entire
            spectrum of operational planning. This planning covered the spectrum
            from systems planning through concept of operations development to
            comprehensive D/A operations plans (OPLANs) complete with SOPs and
            checklists (see contracts #3 & 4).

      -     We authored the FEMA Comprehensive Exercise Program (CEP) Overview,
            a document which established a new FEMA approach to the entire
            exercise program (see contract #2).

      -     We authored the NCS National Telecommunications Management Reference
            Series (NTMRS) (REDBOOKS) which provides the only comprehensive
            collection of information describing key government and commercial
            telecommunication systems/networks (see contract #6).

                                       4-5

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

4.2   TITAN'S RELEVANT CORPORATE EXPERIENCE (REFERENCE SO-L-5.1.1)

      Exhibit 4.2-1 provides a summary of the contractual data for eight
contracts that we have selected to demonstrate our stated corporate experience.
A check of the references contained in Exhibit 4.2-1 will provide true relevancy
to the fact that we have consistently maintained a solid track record for
meeting schedule and completion dates while performing in a technically
proficient manner. The following sections explain the nature of each contract
SOW effort and its relationship to this SOW.

4.2.1 FAA NSEP PROGRAM (CONTRACT #1)

      Titan is currently supporting the FAA Emergency Operations Staff in
providing disaster assistance training to national and regional FAA facilities.
We have conducted nine sessions to date covering FAA regional offices located in
Atlanta, Fort Worth, Boston, Seattle, Anchorage, Los Angeles, Kansas City, New
York, and Chicago. The Atlanta, Fort Worth, New York, and Boston sessions were
built around major hurricane disasters. The Los Angeles, Kansas City, Anchorage,
and Seattle sessions were built around sizeable earthquake disasters. The
Chicago session involved a technological hazard. Specific events focused on the
actions necessary to maintain the safety of the airways, personnel, and
facilities in the face of natural and technological disasters, and on the
reconstitution of the National Airspace System in the face of a catastrophic
disaster. Titan is also planning and coordinating seven additional exercises for
1995 to include the Technical Center, Aeronautical Center, and additional
regional exercises.

                                      4-6

<PAGE>

                                                                    [LOGO] TITAN

                          EXHIBIT 4.2-1. CONTRACT DATA

<TABLE>
<CAPTION>
=========================================================================================================
  Contract Reference          Contracting Agency                 Contract Number         Dates/Location
    Number & Name               Name & Address                       and Type               of Work
=========================================================================================================
<S>                        <C>                                    <C>                    <C>
1. FAA NSEP Training       FAA Southern Region                    DTFA 06-91-D-30082     10/91-present
Exercise Program           (ASO-55N)                              FFP/TO                 Washington, D.C.
                           3400 Norman Berry Drive
                           East Point, GA
---------------------------------------------------------------------------------------------------------
2. FEMA Exercise           Federal Emergency Management Agency    EMW-92-C-3950          9/92-present
Support                    500 C Street, S.W.                     CPFF                   Washington, D.C.
                           Washington, D.C. 22472
---------------------------------------------------------------------------------------------------------
3. FEMA Team               Federal Emergency Management Agency    EMW-88-C-2770          9/88-12/91
Development and            500 C Street, S.W.                     CPFF                   Washington, D.C.
Operations Support         Washington, D.C. 22472                 EMW-91-C-3627          9/91-12/94
                                                                  CPFF                   Washington, D.C.
---------------------------------------------------------------------------------------------------------
4. FEMA Operational        Federal Emergency Management Agency    EMW-90-C-3395          9/90-9/94
Planning Support &         500 C Street, S.W.                     CPFF                   Washington, D.C.
Technical Assistance       Washington, D.C. 22472
---------------------------------------------------------------------------------------------------------
5. Chemical Stockpile      Federal Emergency Management Agency    EMW-92-C-3659          7/92-present
Emergency Preparedness     500 C Street, S.W.                     CPFF/LOE               Washington, D.C.
Program                    Washington, D.C. 22472
---------------------------------------------------------------------------------------------------------
6. NCS Operational Test    Booz @ Allen & Hamilton                DCA 100-84-C-0037      7/89-7/92
and Evaluation             3 Skyline Place Suite                  (Sub Contract #        Arlington, VA
                           303 5201 Leesburg Pike                 09003-229-N0918-86)
                           Falls Church, VA 22041                 CPAF
---------------------------------------------------------------------------------------------------------
7. FEMA Evaluation         Federal Emergency Management Agency    EMW-89-C-3115          9/89-3/92
Assessment Program         500 C Street, S.W.                     CPFF                   Washington, D.C.
Development &              Washington, D.C. 22472
Operation
---------------------------------------------------------------------------------------------------------
8. JCS Exercise Support    Systems Research & Applications        SRA-SC-419-001         10/88-9/93
                           2000 15th Street, North                CPFF                   Arlington, VA
                           Arlington, VA 22201
---------------------------------------------------------------------------------------------------------
9. FEMA Operations         Federal Emergency Management Agency    EMW-91-C-3704          9/91-present
Support SETA               500 C Street, S.W.                     CPFF                   Washington, D.C.
                           Washington, D.C. 22472
=========================================================================================================
<CAPTION>
=========================================================================================================
                                Contracting                                  %
                                 Officers                COTRs              Turn         Total
  Contract Reference           Name/Telephone        Name/Telephone       Over Per      Contract
    Number & Name                 Number                 Number             Year         Value
===================================================================================================
<S>                          <C>                    <C>                      <C>        <C>
1. FAA NSEP Training         Ms. Marjorie Brooks     Mr. Tom Schneider         0%        [...***...]
Exercise Program             (404) 763-7337          (202)267-7775
---------------------------------------------------------------------------------------------------
2. FEMA Exercise             Ms. Lois Cleveland      Ms. Camel Cassidy       < 2%        [...***...]
Support                      (202) 646-3836          (202) 646-2652
---------------------------------------------------------------------------------------------------

3. FEMA Team                 Ms. Carol Eiben         Mr. Jeffery Glick       < 5%        [...***...]
Development and              (202) 646-3736          (202) 646-3023
Operations Support           Ms. Lois Cleveland      Mr. Russel Salter       < 5%        [...***...]

                             (202) 646-3836          (202) 646-3030
---------------------------------------------------------------------------------------------------
4. FEMA Operational          Mr. Greg Steigerwald    Mr. Dan Wilcox           0%         [...***...]

Planning Support &           (202) 646-3750          (202) 646-3798
Technical Assistance
---------------------------------------------------------------------------------------------------
5. Chemical Stockpile        Mr. Rich Liffridge      Mr. George Turner       < 5%        [...***...]

Emergency Preparedness       (202) 646-3751          (202) 646-4547
Program
---------------------------------------------------------------------------------------------------
6. NCS Operational Test      Ms. Robin Guthrie       Mr. John Joyce          < 2%        [...***...]

and Evaluation               (703) 951-4615          (703) 824-3800
---------------------------------------------------------------------------------------------------
7. FEMA Evaluation           Ms. Carol Elben         Mr. John Lynch          < 2%        [...***...]

Assessment Program           (202) 646-3736          (202) 646-2696
Development &
Operation
---------------------------------------------------------------------------------------------------
8. JCS Exercise Support      Ms. Linda Woolen        Mr. Gary Lindquist      < 2%         [...***...]

                             (703) 558-4723          (703) 558-7663
---------------------------------------------------------------------------------------------------
9. FEMA Operations           Mr. Greg Steigerwald    Mr. Robert Napoli       < 3%        [...***...]

Support SETA                 (202) 646-3750          (202) 646-3016
===================================================================================================
</TABLE>

                                  [...***...]

                                      4-7

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.

                       *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

      Applicable technical services provided that are related to the SOW
requirements are summarized below:

      -     Titan prepares workplans and other project management tools,
            provides monthly progress reports, and meets (weekly) (periodically)
            with the FAA Project Officer. THESE SERVICES DIRECTLY RELATE TO
            PARAGRAPH 4 OF THE SOW (ACTIVITY REPORTS).

      -     Titan has supported the FAA over the last three years in the
            preparation and conduct of the first series of FAA regional
            catastrophic disaster response table-top exercises throughout all
            nine FAA regions. THESE SERVICES DIRECTLY RELATE TO PARAGRAPH 5.2 OF
            THE SOW (TASK I).

      -     Titan is currently assisting ADA-20 in planning for a FAA
            Headquarters exercise in 1995 involving external agencies. THESE
            SERVICES DIRECTLY RELATE TO PARAGRAPH 5.3 OF THE SOW (TASK II).

      -     Titan has been involved in planning efforts to determine emergency
            functions within Headquarters FAA to support revisions of FAA
            Emergency Operations Plans. THESE SERVICES DIRECTLY RELATE TO
            PARAGRAPH 5.4 OF THE SOW (TASK III).

4.2.2 FEMA EXERCISE SUPPORT (CONTRACT #2)

      Titan is currently supporting FEMA and other Federal D/As in the planning,
conduct and evaluation, and assessment of emergency management team exercises.
We were involved in the National Disaster Medical System (NDMS) Exercise Open
Arms in October 1992, and are currently providing exercise support to FEMA and
other Federal D/A's participating in a wide variety of exercises including NATO
Civil-Military, CJCS-Sponsored Mobilization and Mobility and Domestic Nuclear
Terrorist events. The support involved development of exercise concepts

                                      4-8
<PAGE>

                                                                    [LOGO] TITAN

and objectives, exercise scenarios, COSINs, MSELs, and the development of
schedules culminating in a set of EXPLANs. Further exercise development included
evaluation and data collection plans; data collection handbooks; identification
of data collector and controller orientation and training requirements; data
collection and assistance in exercise control during exercises; and
post-exercise analysis and preparation of first impression reports, critique
items for remedial action, and an overall exercise evaluation report. Services
related to SOW requirements are summarized below:

      -     Titan prepares work plans, monthly reports, and other project
            management tools. REFERENCE ACTIVITY REPORTS OF THE SOW.

      -     Titan prepares a full range of exercise documentation; designs,
            conducts, and evaluates exercises; and provides personnel on site to
            act as controllers, evaluators, and data collectors. REFERENCE TASK
            I OF THE SOW.

      -     Titan is currently providing training documentation and exercise
            support under its FEMA Exercise Support Contract to 26 Federal D/As
            (including the FAA) concerning mobilization and mobility and
            domestic nuclear terrorist events. REFERENCE TASK II OF THE SOW.

      -     Titan has prepared or assisted in the preparation of the full range
            of documentation to operationally support FEMA and other Federal
            D/As, including the FEMA Comprehensive Exercise Program (CEP)
            Overviews. REFERENCE TASK III OF THE SOW.

                                      4-9

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

4.2.3 FEMA TEAM DEVELOPMENT AND OPERATIONS SUPPORT (CONTRACT #3)

      Titan supported FEMA in the implementation of D/A NSEP programs. This
support included a full range of training services to almost all Federal D/A's,
indoctrinating and preparing members of national and regional emergency
management teams to implement their assigned tasks, and serving as the lead
trainer for these teams. Support was provided for orientation and team-building
activities, team training exercises, gaming exercises, table-top exercises, and
simulation/workshops. Activities included curriculum design, materials
selection, scheduling, and training. Since the inception of this contract, over
60 workshops/seminars were planned and conducted for the national and regional
emergency management teams. Services related to SOW requirements are summarized
below:

      -     Titan provided monthly reports, work plans, other program management
            tools, and concept development. REFERENCE ACTIVITY REPORTS OF THE
            SOW.

      -     Titan provided training support to FEMA's National Emergency
            Response Teams (ERT-Ns). REFERENCE TASK I OF THE SOW.

      -     Titan reviewed exercise documentation, made recommendations on
            exercise design, provided on-site exercise evaluators, and produced
            after-action reports under this contract. Titan also designed,
            conducted, and evaluated over 60 seminars and workshops in support
            of FEMA. These seminars and workshops were conducted at the national
            and regional levels, and individual sessions have been attended by
            over 200 senior government officials. REFERENCE TASK I OF THE SOW.

                                      4-10
<PAGE>

                                                                    [LOGO] TITAN

      -     Titan has performed numerous requirements analyses, developed
            concepts, and produced concepts of operation and standard operating
            procedures under this contract. REFERENCE TASK III OF THE SOW.

4.2.4 FEMA OPERATIONAL PLANNING SUPPORT AND TECHNICAL ASSISTANCE (CONTRACT #4)

      Titan assisted FEMA, as coordinator for the civil emergency management
community, in providing operational planning support to the National Security
Emergency Preparedness (NSEP) Program and the Federal Government Continuity of
Government (COG) Program. Planning support has resulted in a detailed
operational knowledge of and close working relationship with each of the 26
Federal D/As. These plans address basic concepts of operations and operational
requirements and procedures for the National Emergency Management Team and the
Regional Emergency Management Teams. This support has provided an uncommon level
of knowledge and expertise of the emergency management community from the
perspective of the interface and interaction between and among the various civil
D/As at the National level, as well as the interrelationships at the Federal,
regional, and even State and local levels. Involvement has also included a
comprehensive review of existing D/As plans as the basis for the development of
NSEP and COG plans, the development of classified and unclassified plans, and
secretarial support to a number of Federal interagency working groups, such as
the Interagency Advisory Group (IAG). Titan supported FEMA and the rest of the
civil D/A's in a total review and integration effort for comprehensive
all-hazard preparedness response and recovery planning, as part of the Federal
Response Plan (FRP) as a result of shifting priorities and a renewed emphasis on
natural and technological disaster responses. Services related to SOW
requirements are summarized below:

                                      4-11

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      -     Titan provided monthly reports, work plans, other program management
            tools. REFERENCE ACTIVITY REPORTS OF THE SOW.

      -     Titan conducted an extensive review of Federal department and agency
            NSEP and COG plans and, in many cases, provided revised plans.
            REFERENCE TASK III OF THE SOW.

      -     Titan conducted a comprehensive review of the FRP for FEMA as a
            result of the increased emphasis on natural and technological
            disasters. REFERENCE TASK III OF THE SOW.

4.2.5 CHEMICAL STOCKPILE EMERGENCY PREPAREDNESS PROGRAM (CSEPP) (CONTRACT #5)

      Exercise support for the CSEPP is a joint U.S. Army/FEMA effort to
increase the capability of chemical surety installations and the surrounding
communities to deal with a chemical accident or incident. It is a natural
extension of FEMA's national emergency management responsibilities because FEMA
is the Federal agency responsible for coordinating with State and local
authorities in line with its responsibilities for coordination of local, State,
and regional disaster responses to potential accidents at designated chemical
weapons storage sites. Titan's support of CSEPP includes the design,
development, conduct, and evaluation of table-tops; direction and control, and
full-scale exercises for eight CONUS toxic chemical munitions storage sites, the
immediate surrounding munitions storage sites, the immediate surrounding
jurisdictions, and their State(s). Comprehensive exercises involve close
coordination with Army and FEMA exercise co-directors and State and local
emergency planners to develop exercise documentation such as the exercise plans
(EXPLANs) and Control Staff Instructions (COSINs), exercise scenarios and
initiating event, key events calendar, master scenario event

                                      4-12
<PAGE>

                                                                    [LOGO] TITAN

lists (MSELs), implementers, and exercise reports (evaluation). Services related
to SOW requirements are summarized below:

      -     Titan prepares task order estimates, a work plan, and other program
            management tools, and provides monthly reports to the FEMA Project
            Officer/COTR. Status discussions are ongoing and meetings are
            conducted at the request of the Project Officer. REFERENCE ACTIVITY
            REPORTS OF THE SOW.

      -     Titan supports CSEPP exercise planning meetings; prepares a full
            range of exercise documentation for the CSEPP community; designs,
            conducts, and evaluates exercises; and provides personnel on-site to
            act as controllers, evaluators, and/or data collectors. REFERENCE
            TASK I OF THE SOW.

      -     The CSEPP community exercises are joint (U.S. Army-FEMA) by nature;
            however other Federal D/As, e.g., Army Corps of Engineers,
            Environmental Protection Agency, and USDA (at State and county
            level) are frequently involved. REFERENCE TASK II OF THE SOW.

      -     Since the CSEPP exercises include the evaluation of community plans
            and procedures against CSEPP standards, Titan receives and reviews
            all of the jurisdictional (i.e., Army site, State, and City/County)
            plans during exercise design. During evaluation, feedback on
            planning strengths and weaknesses, with appropriate recommendations,
            are included. REFERENCE TASK III OF THE SOW.

4.2.6 NATIONAL COMMUNICATIONS SYSTEMS OPERATIONAL TEST AND EVALUATION (CONTRACT
#6)

      Titan has provided communication planning and evaluation assistance to the
Office of the Manager, National Communication Systems (OMNCS) for NSEP
communications and automatic

                                      4-13

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

data systems. The support included a broad spectrum of tests, plans development,
exercise execution assistance, data collection, near real-time feedback and
post-exercise analysis, and evaluation/reporting. Titan provided support to the
OMNCS in the development of the National Telecommunications Baseline used for
NSEP exercises, engineering support for the National Telecommunications
Coordination Network (NTCN), operational and exercise support for the National
Telecommunications Management Structure (NTMS), and technical and administrative
assistance to the OMNCS for Communications Operations Planners. Services related
to SOW requirements are summarized below:

      -     Titan participated in concept development, developed work plans and
            other program management tools such as PERT charts, and produced
            monthly reports. REFERENCE ACTIVITY REPORTS OF THE SOW.

      -     For NCS participation in external exercises, Titan determined
            exercise telecommunications status; prepared exercise themes and
            issues, MSELs, and implementers; participated in the evaluation of
            exercises; and prepared exercise evaluation reports. Titan also
            assisted the NCS in coordinating exercise documentation with the NCS
            members using standard techniques; e.g., meetings, structured
            presentations, and document review cycles. REFERENCE TASK II OF THE
            SOW.

      -     Titan provided detailed evaluations of major exercises under this
            contract. Products included evaluation plans, quick look reports,
            and evaluation reports. These documents served as the basis for
            Titan's revision of a number of NCS Operational Plans and SOPs.
            REFERENCE TASK III OF THE SOW.

      -     Titan began the authorship, under this contract, of the NCS's
            National Telecommunications Management Reference Series (NTMRS)
            (REDBOOKS)

                                      4-14
<PAGE>

                                                                    [LOGO] TITAN

            which provides the only comprehensive collection of information
            describing key government and commercial telecommunications
            system/networks. REFERENCE TASK III OF THE SOW.

4.2.7 FEMA EVALUATION AND ASSESSMENT PROGRAM DEVELOPMENT AND OPERATION (CONTRACT
#7)

      Titan assisted FEMA in executing its responsibilities to provide technical
and operational support and financial assistance to State and local governments
to maintain/improve their emergency response capabilities. Inherent in this
effort was the: 1) initiation of specific evaluation and assessment processes
for State and local programs, 2) development of a structured and integrated
State and local exercise activity. The latter effort included the planning,
conduct, and evaluation of civil exercise 1990 (CIVEX-90), a major Office of
Civil Defense exercise that included Federal Departments and Agencies, FEMA
Headquarters and Regions, approximately 20 States, and several hundred local
governments. A major portion of the evaluation addressed the effects of FEMA
programs on State and local government readiness. Program managers at National
and regional level, and emergency management/response supervisors at State and
local level were interviewed, and State and local emergency response plans and
programs were reviewed. The overall objective of this program was to assist
management and decision makers to meet long-range objectives and sustain current
and future improvements to State and local all-hazard response readiness.
Services related to SOW requirements are summarized below:

      -     Titan participated in programmatic and exercise concept development,
            developed a work plan, produced monthly reports, and participated in
            periodic coordination

                                      4-15

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

            conferences with the FEMA Project Officer (COTR) and Task
            points-of-contract. REFERENCE ACTIVITY REPORTS OF THE SOW.

      -     Titan developed CIVEX-90 as an internal Civil Defense exercise for
            State and local governments. Titan developed an EXPLAN, MSEL and
            implementers for inject at the national, regional, and State level;
            Titan controllers/evaluators were provided at the national and
            regional levels and instructions were prepared for them and regional
            controllers/evaluators at State level; Titan observers were also
            sent to selected States. Titan prepared a "quick-look" and draft and
            final evaluation report. REFERENCE TASK I OF THE SOW.

      -     Since the original concept for CIVEX-90 called for it to be
            conducted in conjunction with a JCS exercise and a Federal Civil
            Agency NSEP exercise, much of the preliminary exercise design effort
            focused on integrating CIVEX-90 requirements into the other two
            exercise efforts. When these other two exercises were cancelled,
            Titan's effort shifted to replacing the players from these exercises
            with a response cell. In addition, several Regions and States had
            unique requirements that Titan integrated into CIVEX-90. REFERENCE
            TASK II OF THE SOW.

      -     Titan's activity provided significant insight into problems faced by
            local, State, regional, and national managers of emergency response
            capabilities; local and State responders in planning for and
            responding to actual emergencies; and the problems faced by the
            3,500 local governments. Recommendations were provided to the FEMA
            COTR for application to existing assistance programs and development
            of a comprehensive State and local exercise program. REFERENCE TASK
            III OF THE SOW.

                                      4-16
<PAGE>

                                                                    [LOGO] TITAN

4.2.8 JCS EXERCISE SUPPORT (CONTRACT #8)

      As a subcontractor to the Systems Research and Applications Corporation,
Titan provided technical support to the JCS Exercise Evaluation Program. This
contract served various elements of the Joint Staff, including the Operations
Directorate; the Logistics Directorate; the Command, Control and Communications
Directorate; and the Operational Plans and Interoperability Directorate.

      Technical tasks performed during the contract consisted of the review,
preparation, and publication of exercise-related documents which were used to
prepared JCS-sponsored command post exercises. Additional tasks required the
design and planning of exercise events, data collection, and post-exercise
evaluation. Documents produced for pre-exercise planning included: 1) a concept
and objectives report, 2) a preliminary evaluation plan, and 3) a system
description review. In addition, objectives and events control matrices were
developed for the Logistics and Joint Exercise and Training Directorates, and a
MSEL compiled. Other deliverables included the evaluation and data collection
plan, data collection handbook, a senior player briefing, player lesson plans,
and data collection lesson plan and training package, and evaluation reports.

      This contract also involved the use of the Joint Universal Lessons Learned
System (JULLS). The JULLS effort required the review of a raw data based
containing over 6,000 files dealing with "lessons learned" from military
operations and exercise events. Services related to SOW requirements are
summarized below:

                                      4-17

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

      -     Titan prepared work plans, monthly reports, and other program
            management tasks. REFERENCE ACTIVITY REPORTS OF THE SOW.

      -     Titan prepared a full range of exercise documentation; supported the
            design, conduct, and evaluation of exercises; and provided personnel
            on-site to act as controllers, data collectors, and evaluators.
            REFERENCE TASK I OF THE SOW.

      -     Titan prepared the Joint Mission Essential Task List for the Joint
            Staff. Titan also conducted a review of the JULLS raw database to
            revise and update entries and make them useful to action officers
            and planners at all command levels. REFERENCE TASK III OF THE SOW.

4.2.9 FEMA OPERATIONS SUPPORT SETA (CONTRACT #9)

      Titan has supported FEMA's Operations Support Directorate in the areas of
emergency management information processing systems and the exchange of data and
map products among the various elements of the emergency management community.
This SETA support has involved the compilation of a requirements baseline;
identification of computer software configuration items, development of a
software architecture; development of a multi-mission all-hazard concept
document; hardware and software design; and development of an image capture,
enhancement, and display system in both transportable and portable
configurations. Titan also developed utilities to assist in the registration of
over 100 databases maintained by the Federal Departments and Agencies; prepared
operating procedures and interface control documents; prepared strategic plans
incorporating evolving technology; and developed an automation support concept
of operations including identifying the software, hardware, and
telecommunications required for an effective exchange of data map and products.
The concept of operations also

                                      4-18
<PAGE>

                                                                    [LOGO] TITAN

identified the models, support tools, and databases available to the emergency
management community at State, regional, and national levels. Services related
to SOW requirements are summarized below:

      -     Titan prepares the project work plan and, monthly progress reports
            and conducts periodic program management reviews for the FEMA
            Project Officer. REFERENCE ACTIVITY REPORTS OF THE SOW.

      -     Titan has supported FEMA in the preparation of software,
            registration of databases, and training of participants for
            all-hazard exercises. Titan is also developing a training plan for
            the FEMA managers and operators of a database management system.
            REFERENCE TASK I OF THE SOW.

      -     Titan is currently involved in the development of an implementation
            plan for the automation support concept of operations. This plan
            identifies the computer products to be exchanged between the
            emergency support functions (ESFs) at the Emergency Information and
            Coordination Center (EICC) and the ESFs at the Disaster Field Office
            (DFO).

      -     Titan has prepared a variety of documents including planning
            documents, requirements documents, five-year plans, communications
            architectures, alternatives analyses, interface control documents,
            concepts of operations, procedures handbooks, and technical papers.

      -     Titan has also conducted a thorough review of the Federal Response
            Plan (FRP) and the ESF#5 Operating Procedures to assist in the
            identification of automation support and telecommunications
            requirements. REFERENCE TASK III OF THE SOW FOR ALL POINTS.

                                      4-19

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                                                                    [LOGO] TITAN

                     5.0 CORPORATE FACILITIES AND RESOURCES

      TITAN HAS VAST EXPERIENCE IN OPERATIONS/EMERGENCY RESPONSE PLANNING AND
      EXERCISE, DESIGN, CONDUCT, AND EVALUATION. WE HAVE MODERN FACILITIES WITH
      ADEQUATE WORKING AND MEETING SPACE IN CLOSE PROXIMITY TO THE FAA
      HEADQUARTERS AND NUMEROUS OFFICES AT KEY LOCATIONS THROUGHOUT THE UNITED
      STATES.

      Titan Systems, Inc. was founded in May 1981. The Titan Corporation was
formed in the summer of 1985 by the merger of the then Titan Systems, Inc. with
Electronic Memories and Magnetics Corporation. The merged companies became the
Titan Corporation. Titan currently has revenues of approximately $150 million a
year and employs over 950 people. It is a publicly owned corporation traded on
the New York Stock Exchange. The Titan Corporation is structured into the four
main operating entities and three independent operating organizations shown in
Exhibit 5.0-1.

                       EXHIBIT 5.0-1 THE TITAN CORPORATION

--------------------------------------------------------------------------------

                          ----------------------------
                                    GENE RAY
                                    PRESIDENT

                                    ED KNAUF
                            EXECUTIVE VICE PRESIDENT
                          ----------------------------
                                        |
                                        |
                                        |
        --------------                  |               ---------------
             CFO        ----------------|-------------  GENERAL COUNSEL
          ROGER HAY                     |                MARSH NELSON
        --------------                  |               ---------------
                                        |
       ------------------------------------------------------------------
       |                    |           |         |                      |
-----------------      ------------     |   --------------     --------------
  INFORMATION            LINKABIT       |      SYSTEMS            APPLIED
    SYSTEMS                             |                       TECHNOLOGIES
-----------------      -------------    |   --------------     --------------
  FRED JUDGE             RON GORDA      |    NEIL HENSEL        STEVE MEYER
-----------------      -------------    |   --------------     --------------
                                        |
                                        |
                    ------------------------------------------
                    |                   |                     |
              -------------       --------------      ----------------
               ELECTRONICS         ENVIRONMENTAL        RESEARCH &
                                                       TECHNOLOGIES
              -------------       --------------      ----------------
               ROGER ROWE         PAUL KAUFMANN        KEN KREYENHAGEN
              -------------       --------------      ----------------

--------------------------------------------------------------------------------

                                      5-1

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

5.1 TITAN SYSTEMS GROUP

      Support to the FAA's Emergency Operations Program will be performed by the
Titan Systems Group, principally at the Reston, Virginia, facility. Titan
Systems Group focuses on providing hardware, software, and technical support
services to our clients, most of whom are Federal departments and agencies in
the Washington, D.C. area. This group also provides extensive intelligence, test
and evaluation, training, and exercise support to various government customers.
Titan's Systems Group operating organizations are shown in Exhibit 5.1-1. The
four operations that comprise the group are summarized below.

                        EXHIBIT 5.1-1 TITAN SYSTEMS GROUP

--------------------------------------------------------------------------------

                              --------------------
                                  NEIL HENSEL

                                   PRESIDENT
                              --------------------
                                        |
                                        |
                                        |-----------------------
                                        |                       |
                                        |                       |
                                        |              -------------------------
                                        |               FINANCE, ADMINISTRATION
                                        |                     & CONTRACTS
                                        |
                                        |                    ALLAN SHURE
                                        |              -------------------------
                                        |
        -------------------------------------------------------------
        |                    |                    |                  |
  ----------------     --------------        -------------     -------------
     EMERGENCY
     MANAGEMENT           FEDERAL               SYSTEMS          TECHNOLOGY
      SYSTEMS             SYSTEMS             INTEGRATION       APPLICATIONS
  ----------------     --------------        -------------     -------------
   PAUL CARLSON         MIKE WALKER           BOB JOSEPH        GARY GLASER
      EVP/GM              SR VP/GM             SR VP/GM           SR VP/GM
  ----------------     --------------        -------------     -------------

--------------------------------------------------------------------------------

Emergency Management Systems. This organization, which currently supports the
FAA NSEP Program, provides an extensive experience base and capability for
preparing, training, and exercising teams for a full range of emergency
operations and crisis management situations for government and commercial
agencies. The organization is structured to meet the increasing

                                      5-2
<PAGE>

                                                                    [LOGO] TITAN

requirements both in the government and the commercial sector to deal with
catastrophic disasters and crisis situations, whether they be natural or
technological or in reaction to a national security emergency. The organization
provides a "full service" approach which includes support for all aspects of
planning, training, exercising, and evaluating a wide variety of exercises,
games, simulations, and table-tops designed to meet specific customer
requirements. Its staff has extensive experience in providing communications
reference documents and database development in support of emergency operations,
crisis management exercises, and in-depth test and evaluation functions for a
wide range of national emergency communication systems.

      Specific experience of this Group includes: development of plans and
procedures; design, development, conduct, and evaluation of a wide range of
exercises; emergency operations center activation and functions; development and
conduct of training programs; systems architecture design and database
management; public information gathering and dissemination; and all-hazards
assessments.

FEDERAL SYSTEMS. The focus of Federal Systems is toward the development of
specialized information technology products for government and industry
applications, particularly in the areas of weather-related systems,
environmental services, Automation and System engineering for the FAA, and
information management and communications. Federal Systems specializes in the
application of object oriented design techniques to provide low-cost near-term
technical solutions in multimedia that demonstrate high return on investment for
clients. Its staff also perform technical engineering, acquisition, and
operational support services for government and commercial customers. Current
product lines include multimedia training aides, decision support systems, and
hypermedia reference and handbook documentation.

                                      5-3

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

SYSTEMS INTEGRATION. The Systems Integration organization is focused on
providing state-of-the-art systems solutions to satisfy requirements for
telecommunications and information processing capabilities. These systems range
in size from single Very Small Aperture Terminals (VSATs) for satellite
communications to complete national and international networks. This
organization can provide component equipment or fully integrated systems that
include satellite earth stations, PABX's, paging systems, wireless networks,
and encryption products, as well as local and wide area voice/data/video
networks.

TECHNOLOGY APPLICATIONS. This organization performs systems engineering,
software development and configuration management, requirements analysis and
provides support to system architecture development and associated system
specifications, primarily for the intelligence community and the Department of
Defense. Its primary areas of work are in information support to military
operations, security systems evaluations, and test and evaluation and
architecture assessment for the Ballistic Missile Defense Organization. Its
staff also perform analyses and software development related to the exploitation
of communications and intelligence related programs.

5.2 COMPANY RESOURCES (REFERENCE SOW PARAGRAPH 9.1)

      Titan is a multi-disciplined high technology organization that places
great emphasis on the educational background of its technical staff. Our broad
range of services and products is a direct result of personnel skills which
range from basic to applied research, conceptual to engineering design, and
prototype fabrication to production models. The Titan staff currently includes
over 950 employees, most of whom have degrees and implementing skills in the

                                      5-4
<PAGE>

                                                                    [LOGO] TITAN

physical sciences, engineering, and computer science fields. Titan scientists,
engineers, and technical specialists serve clients in the fields of: C41
systems; defense and space systems; exercise, test, evaluation, and training;
expert systems and software; computer engineering and modeling; communications
planning and engineering; secure video teleconferencing and communications
networking; electro-optical instrumentation; pulsed power; advanced ordnance;
electronic products; and earth-based satellite communications systems. Within
Titan Systems, 90 personnel have security clearances at the SECRET level or
higher. No person will be assigned to this program who does not possess a SECRET
clearance.

      The Titan Corporation has an exceptional corporate resource pool of amply
qualified personnel to meet any contingency envisioned within the requirements
of this procurement. In Section 3.0, a number of personnel were specifically
earmarked to meet unforeseen requirements; however, equally qualified additional
personnel could be provided, if conditions so require. Our capability to matrix
manage personnel has been frequently demonstrated in past contract performance
and has permitted temporary assignment of personnel throughout the continental
United States and overseas to meet clients' requirements. This capability will
likewise permit our proposed team to adjust to meet heavy workloads, ensure
attainment of milestones, and assure that we maintain our outstanding record of
meeting delivery schedules on or ahead of time. It is this corporate resource
capability, in part, that sets Titan apart from others in its capability to
respond to its clients needs and timelines.

                                      5-5

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

5.3 FACILITIES (REFERENCE SOW PARAGRAPH 8.2)

      Titan Systems Group offices are located at 1900 Campus Commons Drive,
Reston, Virginia. The office is adjacent to the Dulles Toll Road at Wiehle
Avenue and has easy access to government offices throughout the Metropolitan
Washington, D.C., area. Its modern 93,000 square foot office building offers a
shielded enclosure; an administrative center; work processing and graphics
services; and ample office and conference areas that frequently support a
variety of customer demonstrations, training sessions, and briefings.
Approximately 200 employees, supporting government and industry programs,
currently work in this facility.

      Access to Titan facilities is controlled on a 24-hour-a-day basis by
badges, keys, and keypads. Visitor control procedures and all badging
requirements (for employees as well as for visitors) are performed by the
receptionist. All visitors are properly badged and are escorted unless fully
cleared for the areas they will be visiting.

      The Titan Administrative Center has overall responsibility for
contracting, accounting, and general facilities support. Titan's senior
contracts management staff members are experienced in all levels of contract
negotiation, resolution of contractual issues, and contract status reporting.
They works closely with government and industry contracting officials and
program managers. Contracting management personnel also work directly with the
purchasing department to ensure that all procurements comply with Federal
Acquisition Regulations and adhere to contract-specific procedures.

                                      5-6
<PAGE>

                                                                    [LOGO] TITAN

      Titan's facilities staff provides hands-on management of day-to-day
operations, including provision for various levels of customer meetings and
training sessions hosted in the Titan facility. In the past, this has proved
beneficial to the government in that conferences and meetings have been arranged
and supported in Titan facilities. Ample space is available for catered working
luncheons, security processing, and overnight document storage. The Titan
building has a large, open parking area and is in close proximity to hotels and
restaurants for out-of-town attendees. There is easy access to Titan from
downtown Washington, D.C., and National and Dulles Airports.

      Titan utilizes various personal computers (PCs) in preparing draft and
working paper products. As is the case in many organizations, typing can become
the "choke point" in the documentation production cycle. The availability of PCs
for the project staff's use significantly reduces the possibility of production
delays at Titan and allows the managers to more closely monitor the workload and
priorities of the clerical support.

      Titan's staff has years of experience in delivering professional quality
documentation to customers, whether the product is a training manual, briefing
viewgraphs, or a technical publication. The staff is supported by high speed
Xerox 1090, 1065, and 1025 copiers. Each copier is equipped with a full range of
sorting, feeding, reducing, and stacking features. These large-scale copiers are
supplemented by several mid-size copiers strategically located throughout the
Titan facility. Dedicated GBC binding equipment is located in one copier center
immediately adjacent to the project suite of offices and inside the
DIS-certified facility to facilitate a secure, rapid, and complete production
cycle. Titan has both classified and unclassified facsimile machines.

                                      5-7

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

5.4 SECURITY (REFERENCE SOW PARAGRAPH 3)

      The Titan facility security team is headed by Mr. Rick Wilmoth, Facility
Security Officer. He will provide security services to this contract. Mr.
Wilmoth is responsible for the Titan facility security operation at the Reston
facility. The facility security staff consists of three members, two assigned to
the collateral area and one to the Special Compartmented Information (SCI) area.
Each of the specialists is fully qualified in industrial and government security
procedures.

      The Titan Reston, Virginia, facility has a TOP SECRET facility clearance
with TOP SECRET storage capability. Inside this facility, there are several
areas which contain classified document storage rooms equipped with electronic
security alarm systems. Within these storage rooms, there are
government-approved Mosler Class 6 security storage containers for safekeeping
of material up to and including TOP SECRET. Titan has several Automated
Information Systems (AIS) processing rooms in the facility for processing
classified information up to and including TOP SECRET. The facility is also
equipped with several conference rooms which have been constructed to meet
strict sound attenuation guidelines for classified discussions. Access to the
facility is controlled through a Hirsch Access Control System.

      For secure communications, in addition to a classified facsimile machine,
there are four government-owned STU IIIs and seven Titan-owned STU IIIs
installed in the Reston classified work areas that will be available to support
this effort.

                                      5-8
<PAGE>

                                                                    [LOGO] TITAN

      Physical, document, and personnel security are provided for in accordance
with specific guidance/security documentation provided by the government and the
Titan Security Standard Practices and Procedures (SPP) Manual. Titan currently
has accredited SCI facilities, an active Defense Courier Service account, an
active COMSEC account, and an AIS security program; all of which have been
approved and certified by the Defense Investigative Service (DIS). One can see
that our security capabilities exceed the requirements of this contract. In
doing so, they provide for any security-related contingency that might arise.

5.4.1 TITAN SECURITY PROCEDURES

      All employees receive entry indoctrination and continuing training on
security. The Titan SPP and policies are briefly described below:

      -     Controls are in place to protect classified data and to maintain the
            integrity and security of proprietary data acquired from other
            contracts. These controls comply with the security requirements set
            forth in the DoD Security Agreement (DD Form 441), the DoD
            Industrial Security Manual (ISM) (DoD 5220.22M), and those specified
            for any specific classified contract by the appropriate contract
            security classification specification (DD Form 254). They will be
            amended as necessary to reflect any future revisions or changes to
            the ISM.

      -     Public or other release of classified information or unclassified
            information is governed by user agency guidance, the ISM, and the
            strict Titan policy of formal review of all documents to be released
            outside the company. All such documents are thoroughly reviewed by
            Titan's technical management and security staff and,

                                      5-9

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

            as appropriate, by the concerned government and user agencies prior
            to external release.

      -     The Titan Reston, Virginia, SPP contains the standard procedures for
            the security program Titan uses to safeguard government-furnished
            and contractor-developed classified material prepared in conjunction
            with a contract. The local DIS cognizant security office has
            approved the Titan SPP.

      For this contract all contractor personnel working on the contract shall
have a SECRET clearance. Contract performance involving classified information
will not be initiated until we receive in writing from the Contracting Officer
after coordination with the Civil Aviation Security Division the designated
personnel and authorized facilities for performance of classified work.

5.4.2 HANDLING OF CLASSIFIED INFORMATION

      Upon receipt of the DD Form 254, the Facility Security Officer for the
Titan Reston, Virginia, facility will review the form for specific requirements,
such as controlled work areas or special accesses. The Facility Security Officer
will discuss these security needs with the Project Manager to ensure that all DD
Form 254 classification requirements are clearly understood. The Project Manager
and project staff will, with the assistance of the security staff, review the
classification of all project-generated classified material.

      Classified material received or originated at Titan for this project will
be directed to the Document Control Center, entered into the automated document
control database, and made

                                      5-10
<PAGE>

                                                                    [LOGO] TITAN

available only to appropriately cleared personnel who have a "need-to-know"
requirement to access the information. The Titan Document Control Center
utilizes a Security Management System database which contains all document,
personnel, facility, and visitor information.

      Classified material, up to and including TOP SECRET, that has been marked
for destruction is placed into a disintegrator approved by DIS and destroyed by
a cleared Titan employee and a cleared witness. Destruction certificates are
filed for the period of time prescribed in the ISM or other appropriate
government security guidance.

      Titan has reproduction facilities which are approved by DIS for the
reproduction of classified material up to and including TOP SECRET.

                                      5-11

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

                                                                    [LOGO] TITAN

                        ANNEX A - TABLE OF ABBREVIATIONS

AAL                Alaska Region, FAA
ACE                Central Region, FAA
ADP                Automated Data Processing
AEA                Eastern Region, FAA
AFS                Flight Standards Service
AGL                Great Lakes Region, FAA
AIS                Automated Information Systems
ANE                New England Region, FAA
ANM                Northwest-Mountain Region, FAA
ARTCC              Air Route Traffic Control Center
ASO                Southern Region, FAA
ASW                Southwest Region, FAA
ATSC               Air Traffic Service Cell
ATCT               Air Traffic Control Tower
AWIS               Army Worldwide Command and Control Information
AWP                Western-Pacific Region, FAA

BMDO               Ballistic Missile Defense Organization

C2                 command and control
C3                 command, control, and communications
C3I                command, control, communications, and intelligence
C4I                command, control, communications, computers, and intelligence
CATSS              Computer-Assisted Training Support System
CCST               Contingency Communications Support Team
CD-ROM             Compact Disc - Read Only Memory
CDRG               Catastrophic Disaster Response Group
CENTCOM            U.S. Central Command
CEP                Comprehensive Exercise Program
CFE                Conventional Armed Forces in Europe
CFG                Communications Functional Group
CIMEX              Civil-Military Exercise
CIVEX              Civil Exercise
CJCS               Chairman, Joint Chiefs of Staff
CMC                Crisis Management Center
CMX                Crisis Management Exercise
CNN                Cable News Network
CODIS              Continuity of Defense Intelligence System
COG                Continuity of Government
COMSEC             Communications Security
CONOPS             Concept of Operations
CONUS              Continental United States
COOP               Continuity of Operations Plan
COSIN              Control Staff Instructions
COTR               Contracting Officer's Technical Representative

                                      A-1

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

CPX                Command Post Exercise
CRG                Crisis Response Group
CRS                Crisis Response System
CRSG               Crisis Response Steering Group
CRWG               Crisis Response Working Group
CSEPP              Chemical Stockpile Emergency Preparedness Program

D/As               Departments and Agencies
DCA                Defense Communications Agency (now DISA)
DELTEK             a management information system
DIA                Defense Intelligence Agency
DIS                Defense Investigative Service
DISA               Defense Information Systems Agency (formerly DCA)
DOD                Department of Defense
DOE                Department of Energy
DOJ                Department of Justice
DOT                Department of Transportation
DOT-EO             Department of Transportation Emergency Organization
DPC                Domestic Policy Council

EMS                Emergency Management System(s); emergency medical system
EMT                Emergency Management Team
ENDEX              End of the Exercise
EO                 Emergency Organization
EOC                Emergency Operations Center; Emergency Operating Center
EOP                Emergency Operations Program; Emergency Operations Plan
EPA                Environmental Protection Agency
ERT                Emergency Response Team
ERT-N              National Emergency Response Team
ESF                Emergency Support Function
EST                Emergency Support Team
EVALPLAN           Evaluation Plan
EXPLAN             Exercise Plan

FAA                Federal Aviation Administration
FBI                Federal Bureau of Investigation
FCO                Federal Coordinating Officer
FEMA               Federal Emergency Management Agency
FHWA               Federal Highway Administration (DOT)
FPC                Federal Preparedness Circular
FRERP              Federal Radiological Emergency Response Plan
FRP                Federal Response Plan
FSDOS              Flight Standards District Office
FSE                Full-Scale Exercise
FSS                Flight Service Station

                                      A-2
<PAGE>

                                                                    [LOGO] TITAN

GETS          Government Emergency Telecommunications Service
GSA           General Services Administration

HAZMAT        Hazardous Material; Hazardous Materiels
HHS           Department of Health and Human Services
HILEX         High Level Exercise
Hq            headquarters
HQ            Headquarters
HQDA          Headquarters, Department of the Army

IAG           Interagency Advisory Group
INS           Immigration and Naturalization Service
ISM           Industrial Security Manual

JCS           Joint Chiefs of Staff
JULLS         Joint Universal Lessons Learned System

MIEP          Mass Immigration Emergency Plan
MSEL          Master Scenario Events List

NAS           National Airspace System
NATO          North Atlantic Treaty Organization
NCP           National (Oil and Hazardous Substances Pollution) Contingency Plan
NCS           National Communications System
NDER          National Defense Executive Reserve
NDMS          National Disaster Medical System
NEMT          National Emergency Management Team
NPES          Nuclear Planning and Execution System
NRC           Nuclear Regulatory Commission
NSC           National Security Council
NSEC          National System for Emergency Coordination
NSEP          National Security Emergency Preparedness
NSNF          Non-Strategic Nuclear Force
NTCN          National Telecommunications Coordination Network
NTMRS         National Telecommunications Management Reference Series
NTMS          National Telecommunications Management Structure

OCD           Office of Civil Defense
OET           Office of Emergency Transportation
OJCS          Organization of the Joint Chiefs of Staff
OMNCS         Office of the Manager, National Communication Systems
OPLAN         Operations Plan
OSD           Office of the Secretary of Defense
OSTP          Office of Science and Technology Policy

PC            personal computer
PCC           Policy Coordinating Committee

                                      A-3

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

PL                 Public Law
PAO                Public Affairs Office(r)

REMT               Regional Emergency Management Team
RETCO              Regional Emergency Transportation Coordinator
RETREP             Regional Emergency Transportation Representative
RFP                Request for Proposal

SAC                Space Applications Corporation
SCI                Special Compartmented Information
SECON              Security Condition
SETA               System Engineering/Technical Assistance
SITREP             Situation Report
SOP                Standard Operating Procedure; Standing Operating Procedure
SOW                Statement of Work
SPC                Systems Planning Corporation
SPP                Standard Practices and Procedures
STARTEX            Start of the Exercise

T&E                Test and Evaluation
TACE               technical analysis and cost estimate
TASC               The Analytical Sciences Corporation
Treas              Department of Treasury
TV                 television

U.S.               United States
USCENTCOM          United States Central Command
USCG               United States Coast Guard
USDA               Department of Agriculture
USPACOM            United States Pacific Command

VIP                Very Important Person
VSAT               Very Small Aperture Terminals

WBS                Work Breakdown Structure
WINTEX             Winter Exercise

                                      A-4
<PAGE>

                                                                    [LOGO] TITAN

                           ANNEX B - COMPLIANCE MATRIX

      To assure our compliance with the requirements of this procurement, we
have constructed the following matrix. The matrix cross references the sections
of our proposal with the requirements stated in the solicitation/request for
proposal (RFP), including the evaluation criteria and SOW.

                                COMPLIANCE MATRIX

<TABLE>
<CAPTION>
===================================================================================================================
                                                                                                    Proposal
                    Stated Requirements                                      Source/Para.          Section No.
                    -------------------                                      ------------          -----------
-------------------------------------------------------------------------------------------------------------------
<S>                                                                            <C>                <C>
Details of offerer's capabilities demonstrate understanding of
requirement.                                                                    SO-L-3b                2.0
-------------------------------------------------------------------------------------------------------------------
Proposal Presentation:
      -     Technical Proposal shall include Table of Abbreviations             SO-L-4b               Annex A
      -     Double-Spaced Text, printed on both sides                           SO-L-4b                Vol 1
      -     Technical Proposal Table of Contents                                SO-L-4d               pp i-iv
      -     Technical proposal limit: 4 Copies; 200 pages each                  SO-L-4e            Vol I (198 pp)
      -     Cost Proposal Limit: 4 Copies; no page limit.                       SO-L-4e                Vol II
-------------------------------------------------------------------------------------------------------------------
Technical Proposal Format and Contents:                                        SO-L-5.1
      -     Offerer discussion of evaluation criteria                                                    2.3
      -     Offerer's understanding of solicitation requirement                                          2.1
      -     Offerer's understanding of the work to be undertaken                                         2.2
      -     Offerer's understanding of the scope of requirements                                     2.2, 2.4-2.7
      -     Offerer's demonstration of capabilities to perform                                      3.0, 4.0, 5.0
      -     Proposal cross reference to SOW                                                         Vol I, Annex B
-------------------------------------------------------------------------------------------------------------------
Relevant Experience (Criterion 1):                                             SO-L-5.1.1
      -     Relevant prior and current related experience                                          2.3.1, 4.1, 4.2
      -     Verifiable evidence demonstrating record for meeting schedule                              4.1, 4.2
            and completion dates for similar services
      -     Subcontractor record                                                                        N/A
-------------------------------------------------------------------------------------------------------------------
Key Personnel (Criterion 2)                                                    SO-L-5.1.2
      -     Quality and pertinence of experience and qualifications of                            2.3.2, 3.1, 3.1.1
            staff proposed                                                                            3.1.4, 3.2
      -     Identification/qualifications of proposed Project Manager                               2.3.2, 3.1.1,
      -     Proposed participation of corporate officer/leaders                                       3.1.4, 3.2
                                                                                                  2.3.2, 3.0, 3.1.5
-------------------------------------------------------------------------------------------------------------------
</TABLE>

                                      B-1

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.
<PAGE>

<TABLE>
<CAPTION>
=======================================================================================================================
                                                                                                       Proposal
                    Stated Requirements                                         Source/Para.          Section No.
                    -------------------                                         ------------          -----------
-----------------------------------------------------------------------------------------------------------------------
<S>                                                                            <C>                 <C>
Specific Technical Knowledge and Abilities (Criterion 3)                       SO-L-5.1.3 and
      -     Extent of knowledge and understanding of Federal Response            Amend 0001        2.1.3, 2.3.1, 4.2
            Plan
      -     Extent and source of knowledge and understanding of FAA                                  2.1.2, 2.3.1,
            Order 1900.1E, FAA Emergency Operations Plan                                                 4.2.1
      -     Extent and source of knowledge and understanding of problems
            faced by local, State, and Federal responders to major disasters                        2.3.3, 4.1, 4.2
      -     Evidence of experience and ability in producing clear, concise,
            and technically accurate written materials and graphics                                 2.3.3, 4.1, 4.2,
                                                                                                          Vol I
-----------------------------------------------------------------------------------------------------------------------
Cost Proposal/Rates.                                                              SO-L-5.2               Vol II
-----------------------------------------------------------------------------------------------------------------------
EVALUATION CRITERIA

Criterion 1 - Relevant Experience                                                  SO-M-5
      -     Experience, knowledge and ability to perform SOW activities                             2.0, 3.0, 4.0
      -     Nature of past work performed, relevance, extent of completing
            and overall performance                                                                 2.3.1, 4.1, 4.2
      -     Number and complexity, variety and scope of recent corporate
            projects                                                                                2.3.1, 4.1, 4.2
-----------------------------------------------------------------------------------------------------------------------
Criterion 2 - Key Personnel                                                        SO-M-5
      -     Quality and relevance of expertise and experience of key staff                           2.2, 2.3.2, 3.1,
            members proposed.                                                                           3.1.4, 3.2
      -     Relevant expertise and experience of proposed project manager.                              2.2, 2.3.2,
                                                                                                        3.1.4, 3.2
      -     Proposed participation of corporate leadership in performance of                         2.3.2, 3.0, 3.1.5
            tasks.
-----------------------------------------------------------------------------------------------------------------------
Criterion 3 - Specific Technical Knowledge and Abilities                           SO-M-5
      -     Knowledge and understanding of the FRP and FAA Order l900.1E,                             2.1.2-3, 2.3.1,
            FAA Emergency Operations Plan.                                                                  4.2.1
      -     Knowledge and understanding of the problems faced by local,                               2.3.3, 4.1, 4.2
            State, and Federal responders resulting from a major disaster.
      -     Ability to produce clear, concise, and technically accurate                               2.3.3, 4.1, 4.2,
            written materials and graphics.                                                                 Vol I
-----------------------------------------------------------------------------------------------------------------------
SECURITY REQUIREMENTS

      -     The contractor's personnel and facilities shall meet the FAA           SOW 3.1                   5.4
            security requirements based on the terms and conditions of the
            contract.
      -     All contractor personnel working on this contract                                         3.1.3, 5.2, 5.4.1
            shall have a SECRET clearance.
-----------------------------------------------------------------------------------------------------------------------
Contract performance involving classified information is restricted to             SOW 3.2                  5.4.1
those facilities and personnel designated by Contracting Officer.
-----------------------------------------------------------------------------------------------------------------------
The contractor shall safeguard all classified material and shall provide           SOW 3.2                  5.4.1
and maintain a system of security controls within its organization in
accordance with the requirements of: 1) the Department of Defense
Security Agreement (DD Form 441), 2) the Industrial Security Manual
(ISM) (Attachment to DD Form 441), and 3) any future revisions or
changes to the ISM.
-----------------------------------------------------------------------------------------------------------------------
</TABLE>

                                      B-2
<PAGE>

                                                                    [LOGO] TITAN

<TABLE>
<CAPTION>
=======================================================================================================================
                                                                                                       Proposal
                    Stated Requirements                                         Source/Para.          Section No.
                    -------------------                                         ------------          -----------
-----------------------------------------------------------------------------------------------------------------------
<S>                                                                               <C>               <C>
      -     Contractor employees assigned to the project shall possess            SOW 9.1           3.1.3, 5.2, 5.4.1
            a SECRET security clearance.

      -     The contractor shall maintain a facility approved for the use and                             5.4
            storage of SECRET material.
-----------------------------------------------------------------------------------------------------------------------
ACTIVITY REPORTS

      -     The contractor shall discuss the status of the project weekly         SOW 4                  3.4.4
            with the Contracting Officer's Technical Representative
            (COTR). These discussions will stree the status of the work.
      -     A monthly letter report will be submitted. This monthly report                               3.4.4
            will describe the progress of each task and a breakdown of
            expenditures.
-----------------------------------------------------------------------------------------------------------------------
TASKS

Task I. Develop and provide technical services in support of internal            SOW 5.2                  2.5
FAA exercises.
-----------------------------------------------------------------------------------------------------------------------
Task II. Develop and provide technical services in support of FAA                SOW 5.3                  2.6
participation in exercises involving external agencies.
-----------------------------------------------------------------------------------------------------------------------
Task III. Provide technical services in support of Headquarters and              SOW 5.4                  2.7
regional plan and standard operating procedures (SOP's) development.
-----------------------------------------------------------------------------------------------------------------------
Paragraph 6. First Year Tasks and Deliverables:                                   SOW 6                  1.1, 2.0
      -     Five-regional tabletop exercise                                                              1.1, 2.0
      -     Headquarters exercise                                                                        1.1, 2.0
      -     Multi-regional/headquarters exercise                                                         1.1, 2.0
-----------------------------------------------------------------------------------------------------------------------
OTHER

The contractor shall furnish all facilities and equipment necessary to           SOW 8.2                  5.3
perform this project.
=======================================================================================================================
</TABLE>

                                       B-3

Use or disclosure of proposal data is subject to the restrictions on the title
page of this proposal.

<PAGE>

                                                                    [LOGO] TITAN

Titan Proposal: P217
In Response To: DTFA06-94-R-30067
and Amendment No 0001
Dated December 2, 1994

                               TECHNICAL SERVICES
                                  IN SUPPORT OF
                      THE FEDERAL AVIATION ADMINISTRATION'S
                          EMERGENCY OPERATIONS PROGRAM

                                    VOLUME II

                                  COST PROPOSAL

                                JANUARY 18, 1995

                                                              Copy 6 of 8 Copies

Submitted to:                                  Submitted by:
      DOT/Federal Aviation Administration            Titan Corporation
      Southern Region, ASO-55N                       Titan Systems Group
      1701 Columbia Avenue                           1900 Campus Commons Drive
      College Park, Georgia 30337-2714               Reston, Virginia 22091-1535

================================================================================
THIS PROPOSAL OR QUOTATION INCLUDES DATA THAT SHALL NOT BE DISCLOSED OUTSIDE THE
GOVERNMENT AND SHALL NOT BE DUPLICATED, USED OR DISCLOSED IN WHOLE OR PART FOR
ANY PURPOSE OTHER THAN TO EVALUATE THIS PROPOSAL OR QUOTATION. IF HOWEVER, A
CONTRACT IS AWARDED TO THIS OFFEROR AS A RESULT OF OR IN CONNECTION WITH THE
SUBMISSION OF THIS DATA, THE GOVERNMENT SHALL HAVE THE RIGHT TO DUPLICATE, USE
OR DISCLOSE THE DATA TO THE EXTENT PROVIDED IN THE RESULTING CONTRACT. THIS
RESTRICTION DOES NOT LIMIT THE GOVERNMENT'S RIGHT TO USE INFORMATION CONTAINED
IN THE DATA IF IT IS OBTAINED FROM ANOTHER SOURCE WITHOUT RESTRICTION. THE DATA
SUBJECT TO THIS RESTRICTION IS CONTAINED IN ALL PAGES OF OUR PROPOSAL.
================================================================================

 Use or disclosure of proposal data is subject to the restrictions on the title
                             page of this proposal.

<PAGE>

SOLICITATION NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217

                                    SECTION 1

                               ADMINISTRATIVE DATA

Our proposal is submitted on a Firm Fixed Price basis and shall remain valid
for a period of sixty (60) days from submission. The Titan Corporation is a
publicly held company traded on the NYSE, and is a large business.

1.1      AUTHORIZED REPRESENTATIVES

The following personnel are authorized to negotiate on behalf of The Titan
Corporation, Titan Systems Division (Titan):

         Sherrie R. Manuel, Contracts Representative      (703) 758-5642
         Linda M. Frady, Director of Contracts - East     (703) 758-5640

1.2      ADMINISTRATIVE INFORMATION

Any resultant contract shall be issued to the following:

         The Titan Corporation
         Titan Systems Division
         1900 Campus Commons Drive, Suite 400
         Reston, Virginia 22091
         Attn: Contracts Department

1.3      REMITTANCE ADDRESS

Titan will invoice this contract twice monthly. Payment terms are net 30
days. Titan's remittance address is:

         Titan Systems Division
         Post Office Box 3656
         Los Angeles, CA 90051-3656

1.4      COGNIZANT ADMINISTRATIVE AGENCIES

Titan is under the cognizance of DCMAO and DCAA and undergoes periodic
audits by both. Titan's cognizant Administrative Contracting Office (ACO) is:

         Defense Contract Management Command
         Defense Contract Management Area Operations -- Baltimore
         Attention: Mr. Waymon Carroll
         10500 Battleview Parkway
         Manassas, Virginia 22110-2342

<PAGE>

SOLICITATION NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217

      Titan is under the audit cognizance of the following:

      Defense Contract Audit Agency
      Fairfax Branch Office
      Attention: Mr. Jeff Shaffer
      171 Elden Street, Suite 315
      Herndon, Virginia 22070-4810

1.5 FINANCIAL RESOURCES

Titan has the necessary financial resources for performance of any contract
resulting from this proposal.

1.6 ACCOUNTING SYSTEM

Titan, a large company with the majority of its contract work performed for the
U.S. Government under various types of contracts has a cost accounting system
capable of accounting for and reporting cost in accordance with the Federal
Acquisition Regulations. Titan's accounting system has the flexibility and depth
necessary to provide a variety of cost reports on a bi-monthly basis for
accounting, budgeting and reporting needed to form the basis for effective
fiscal control.

1.7 CONTRACT ADMINISTRATION

All administration on this contract will be handled by Ms. Sherrie Manuel;
therefore, any resultant contract or related correspondence should be forwarded
to her attention at the following address:

      The Titan Corporation
      Titan Systems Division
      1900 Campus Commons Drive, Suite 400
      Reston, Virginia 22091

1.8 TERMS AND CONDITIONS

This proposal has been prepared in accordance with the solicitation
requirements. Any information inadvertently omitted or required will be promptly
furnished upon request. We firmly believe that our proposal is fair, reasonable
and represents the best value for the Government.

1.9 DISCLOSURE OF CONFLICTS OF INTEREST

Titan hereby certifies that to the best of our knowledge and belief no
affiliation exits relevant to possible conflicts of interest.
<PAGE>

SOLICITATION NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217

                                    SECTION 2

                STANDARD FORM 33 - SOLICITATION, OFFER AND AWARD

                                TITAN LABOR RATES

             The remainder of this page is intentionally left blank
<PAGE>

--------------------------------------------------------------------------------
SOLICITATION, OFFER AND AWARD
--------------------------------------------------------------------------------
1. THIS CONTRACT IS A RATED ORDER                Rating            PAGE OF
   UNDER DPAS (15 CFR 350)                  >                      1    45 PAGES
--------------------------------------------------------------------------------
2. CONTRACT NO.              3. SOLICITATION NO.         4. TYPE OF SOLICITATION
                                                         |_| SEALED BID (IFB)
                             DTFA06-94-R-30067           |_| NEGOTIATED (RFP)
--------------------------------------------------------------------------------
5. DATE ISSUED                                6.REQUISITION PURCHASE NO.
   11/10/94
--------------------------------------------------------------------------------
7. ISSUED BY            CODE          8. ADDRESS OFFER TO (If other than Item 7)
   DOT/FEDERAL AVIATION ADMINISTRATION           SAME AS BLOCK 7
   SOUTHERN REGION, ASO-55N
   1701 COLUMBIA AVENUE
   COLLEGE PARK, GEORGIA 30337
--------------------------------------------------------------------------------
NOTE: In sealed bid solicitations "offer" and "offeror" mean "bid" and "bidder".
--------------------------------------------------------------------------------
                                  SOLICITATION
--------------------------------------------------------------------------------

9. Sealed offers in original and 3 copies for furnishing the supplies or
   services in the Schedule will be received at the place specified in Item 8,
   or if handcarried, in the depository located in BLOCK 7 until 4:30pm (Hour)
   local time 12/16/94 (Date)

CAUTION -- LATE Submissions, Modifications, and Withdrawals. See Section L,
Provision No. 52.214.7 or 52.215.10. All offers are subject to all terms and
conditions contained in this solicitation.
--------------------------------------------------------------------------------
10. FOR INFORMATION   A. NAME               B. TELEPHONE NO. (Include area code)
         CALL:     >     MARJORIE M. BROOKS    (404) 305-5778 (NO COLLECT CALLS)
--------------------------------------------------------------------------------
                              11. TABLE OF CONTENTS
--------------------------------------------------------------------------------
 X      SEC.                        DESCRIPTION                         PAGE(S)
--------------------------------------------------------------------------------
                             PART I -- THE SCHEDULE
--------------------------------------------------------------------------------
 X       A    SOLICITATION/CONTRACT FORM                                   1
--------------------------------------------------------------------------------
 X       B    SUPPLIES OR SERVICES AND PRICES/COSTS                        1A
--------------------------------------------------------------------------------
 X       C    DESCRIPTION/SPECS./WORK STATEMENT                            2
--------------------------------------------------------------------------------
 X       D    PACKAGING AND MARKING                                        3
--------------------------------------------------------------------------------
 X       E    INSPECTION AND ACCEPTANCE                                    4
--------------------------------------------------------------------------------
 X       F    DELIVERIES OR PERFORMANCE                                    5
--------------------------------------------------------------------------------
 X       G    CONTRACT ADMINISTRATION DATA                                6-7
--------------------------------------------------------------------------------
 X       H    SPECIAL CONTRACT REQUIREMENTS                               8-10
--------------------------------------------------------------------------------
                           PART II -- CONTRACT CLAUSES
--------------------------------------------------------------------------------
 X       I    CONTRACT CLAUSES                                           11-25
--------------------------------------------------------------------------------
            PART III -- LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACH.
--------------------------------------------------------------------------------
 X       J    LIST OF ATTACHMENTS                                         26
--------------------------------------------------------------------------------
                   PART IV -- REPRESENTATIONS AND INSTRUCTIONS
--------------------------------------------------------------------------------
 X       K    REPRESENTATIONS, CERTIFICATIONS AND
              OTHER STATEMENTS OF OFFERORS                               27-37
--------------------------------------------------------------------------------
 X       L    INSTRS., CONDS., AND NOTICES TO OFFERORS                   38-42
--------------------------------------------------------------------------------
 X       M    EVALUATION FACTORS FOR AWARD                               43-45
--------------------------------------------------------------------------------
                   OFFER (Must be fully completed by offeror)
--------------------------------------------------------------------------------
NOTE: Item 12 does not apply if the solicitation includes the provisions at
52.214-16, Minimum Bid Acceptance Period.
--------------------------------------------------------------------------------
12. In compliance with the above, the undersigned agrees, if this offer is
accepted within ______ calendar days (60 calendar days unless a different period
is inserted by the offeror) from the date for receipt of offers specified above,
to furnish any or all items upon which prices are offered at the price set
opposite each item, delivered at the designated point(s), within the time
specified in the schedule.
--------------------------------------------------------------------------------
13.  DISCOUNT FOR PROMPT PAYMENT (See      10 CALENDAR DAYS    20 CALENDAR DAYS
     Section I, Clause No. 52-232-8)     >                 %                   %
--------------------------------------------------------------------------------
                                           30 CALENDAR DAYS       CALENDAR DAYS
                                                           %                   %
--------------------------------------------------------------------------------
14 ACKNOWLEDGMENT OF AMENDMENTS               AMENDMENT NO.              DATE
   (The offeror acknowledges receipt              0001               12/02/94
   of amendments to the SOLICITATION
   for offerors and related documents
   numbered and dated:)                       AMENDMENT NO.              DATE

--------------------------------------------------------------------------------
15A. NAME                 CODE                         FACILITY 2T213
     AND
   ADDRESS        The Titan Corporation
     OF           Titan Systems Division
   OFFEROR        1900 Campus Commons Drive, Suite 400
                  Reston, VA 22091
--------------------------------------------------------------------------------
16. NAME AND TITLE OF PERSON AUTHORIZED TO SIGN OFFER
    (Type or print)

  Linda M. Frady
  Director of Contracts --  East
--------------------------------------------------------------------------------
15B. TELEPHONE NO. (Include area code)          15C. CHECK IF REMITTANCE ADDRESS
                                            |X| IS DIFFERENT FROM ABOVE. ENTER
         (703) 758-5640                         SUCH ADDRESS IN SCHEDULE
--------------------------------------------------------------------------------
17. SIGNATURE                               18. OFFER DATE

    /s/ Linda M. Frady                          18 JAN 95
--------------------------------------------------------------------------------
                      AWARD (To be completed by Government)
--------------------------------------------------------------------------------
19. ACCEPTED AS TO ITEMS NUMBERED                        20. AMOUNT

--------------------------------------------------------------------------------
21. ACCOUNTING AND APPROPRIATION

--------------------------------------------------------------------------------
22. AUTHORITY FOR USING OTHER THAN FULL AND OPEN COMPETITION:
    |_| 10 U S C 23O4(e)(   )                  |_| 41 U S C 253(c)(      )
--------------------------------------------------------------------------------
23. SUBMIT INVOICES TO ADDRESS SHOWN IN                     ITEM
    (4 copies unless otherwise specified)                 >
--------------------------------------------------------------------------------
24. ADMINISTERED BY (if other than item 7)          CODE

--------------------------------------------------------------------------------
25. PAYMENT WILL BE MADE BY                         CODE

--------------------------------------------------------------------------------
26. NAME OF CONTRACTING OFFICER (Type or print)

--------------------------------------------------------------------------------
27. UNITED STATES OF AMERICA                                  28. AWARD DATE

   (Signature of Contracting Officer)
--------------------------------------------------------------------------------
IMPORTANT -- Award will be made on this Form, or on Standard Form 26, or by
other authorized official written notice.
--------------------------------------------------------------------------------
NSN 75.40_01_152_8064          33-133                STANDARD FORM 33(REV. 4-89)
PREVIOUS EDITION NOT USABLE                          Prescribed by GSA
                                                     FAR (40 CFR) 53.214(c)

<PAGE>

RFP NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217

FY 95         BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
                            O1 JANUARY 1995

<TABLE>
<CAPTION>
                              BASE          ESCL            OVHD                     G&A                     FEE         RATE @
ONSITE RC-11                  RATE       [...***...]    [...***...]     SUB-T    [...***...]    SUB-T    [...***...]      SELL
------------                  ----       -----------    -----------     -----    -----------    -----    -----------     ------
<S>                           <C>        <C>            <C>             <C>      <C>            <C>      <C>             <C>
[...***...]               [...***...]

</TABLE>

<TABLE>
<CAPTION>
                              BASE          ESCL            OVHD                     G&A                     FEE         RATE @
OFFSITE RC-11                 RATE       [...***...]    [...***...]     SUB-T    [...***...]    SUB-T    [...***...]      SELL
-------------                 ----       -----------    -----------     -----    -----------    -----    -----------     ------
<S>                           <C>        <C>            <C>             <C>      <C>            <C>      <C>             <C>
[...***...]               [...***...]

</TABLE>

      Use or Disclosure of Proposal Data is Subject to the Restrictions
                      on the Title Page of this Proposal

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

RFP NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217

FY 96         BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
                            O1 JANUARY 1995

<TABLE>
<CAPTION>
                              BASE          ESCL            OVHD                     G&A                     FEE         RATE @
ONSITE RC-11                  RATE       [...***...]    [...***...]     SUB-T    [...***...]    SUB-T    [...***...]      SELL
------------                  ----       -----------    -----------     -----    -----------    -----    -----------     ------
<S>                           <C>        <C>            <C>             <C>      <C>            <C>      <C>             <C>
[...***...]               [...***...]

</TABLE>

<TABLE>
<CAPTION>
                              BASE          ESCL            OVHD                     G&A                     FEE         RATE @
OFFSITE RC-11                 RATE       [...***...]    [...***...]     SUB-T    [...***...]    SUB-T    [...***...]      SELL
-------------                 ----       -----------    -----------     -----    -----------    -----    -----------     ------
<S>                           <C>        <C>            <C>             <C>      <C>            <C>      <C>             <C>
[...***...]               [...***...]

</TABLE>

      Use or Disclosure of Proposal Data is Subject to the Restrictions
                      on the Title Page of this Proposal

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

RFP NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217

FY 97         BID RATE DEVELOPMENT USING BID RATES EFFECTIVE
                            O1 JANUARY 1995

<TABLE>
<CAPTION>
                              BASE          ESCL            OVHD                     G&A                     FEE         RATE @
ONSITE RC-11                  RATE       [...***...]    [...***...]     SUB-T    [...***...]    SUB-T    [...***...]      SELL
------------                  ----       -----------    -----------     -----    -----------    -----    -----------     ------
<S>                           <C>        <C>            <C>             <C>      <C>            <C>      <C>             <C>
[...***...]               [...***...]

</TABLE>

<TABLE>
<CAPTION>
                              BASE          ESCL            OVHD                     G&A                     FEE         RATE @
OFFSITE RC-11                 RATE       [...***...]    [...***...]     SUB-T    [...***...]    SUB-T    [...***...]      SELL
-------------                 ----       -----------    -----------     -----    -----------    -----    -----------     ------
<S>                           <C>        <C>            <C>             <C>      <C>            <C>      <C>             <C>
[...***...]               [...***...]

</TABLE>

      Use or Disclosure of Proposal Data is Subject to the Restrictions
                      on the Title Page of this Proposal

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

SOLICITATION NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217

                                    SECTION 3

                                COST ELEMENT DATA

Upon issuance of task orders from any resultant contract, Titan will apply its
standard estimating methodology to develop the resources required to
successfully support the Statement of Work (SOW) requirements. Titan's method
involves the analysis of the SOW requirements by the designated program manager
and senior technical staff members. Resources are then planned against these
requirements. The personnel involved in both the resource allocation and review
processes are selected based on their areas of expertise on similar efforts.

3.1 ENGINEERING LABOR

3.1.1 ENGINEERING LABOR HOURS

Titan will apply its standard estimating methods to develop the hours and skill
mix required to successfully support the SOW requirements. These estimates will
be based on the requirements of the SOW and Titan's previous experience gained
in support of similar types of efforts.

3.1.2 DIRECT LABOR RATES

Titan charges direct labor costs to contracts based upon the actual hours worked
by each individual employee, times the employee's labor rate. Bid rates are
based on the average hourly rates of the employees in each bid level. The bid
rates used in costing this effort are effective 01 January 1995. Escalation has
been applied to the proposed effort.

3.2 INDIRECT EXPENSE

Titan's fiscal year (TFY) is 01 January through 31 December.

3.2.1 MATERIAL/SUBCONTRACT OVERHEAD

A rate is applied to material/subcontract costs. This rate includes the costs of
purchasing and subcontract administration. No material or subcontract costs have
been proposed.

3.2.2 ONSITE (TITAN FACILITY) LABOR OVERHEAD

A rate is applied to the onsite direct labor dollar base. This rate includes the
cost of fringe benefits and other costs such as division management, contract
administration, personnel, security, and occupancy.
<PAGE>

SOLICITATION NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217

3.2.3 OFFSITE (NON-TITAN FACILITY) LABOR OVERHEAD

A rate is applied to the offsite direct labor dollar base. This rate includes
the cost of fringe benefits and other costs such as division management,
contract administration, personnel, and security.

3.2.4 GENERAL AND ADMINISTRATIVE (G&A) EXPENSE

A rate is applied to the total direct cost plus overhead, excluding the cost of
materials/subcontracts. This rate includes costs for accounting, corporate
management, and Bid and Proposal (B&P) activity.

3.3 TRAVEL

Travel required will be in accordance with the SOW requirements, Titan's travel
policy, and the Joint Travel Regulations.

3.4 OTHER DIRECT COSTS

Other direct costs will be in accordance with the SOW requirements.

3.5 REPRODUCTION

Reproduction costs will be in accordance with the SOW requirements.

3.6 FEE

Titan has proposed a fee of [...***...] that we feel is fair and reasonable for
this effort.

                       *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

SOLICITATION NO. DTFA06-94-R-30067
TITAN PROPOSAL NO. P217

                                    SECTION 4

                                    SECTION K

                       REPRESENTATIONS AND CERTIFICATIONS

             The remainder of this page is intentionally left blank
<PAGE>
                                       27

                               PART IV - SECTION K
        REPRESENTATIONS, CERTIFICATIONS AND OTHER STATEMENTS OF OFFERORS

52.252-1 SOLICITATION PROVISIONS INCORPORATED BY REFERENCE. (JUN 1988)

      This solicitation incorporates one or more solicitation provisions by
reference, with the same force and effect as if they were given in full text.
Upon request, the Contracting Officer will make their full text available.

                               (End of provision)

              I. FEDERAL ACQUISITION REGULATION (48 CFR CHAPTER 1)
                             SOLICITATION PROVISIONS

52.222-21 CERTIFICATION OF NONSEGREGATED FACILITIES. (APR 1984)
52.223-5 CERTIFICATION REGARDING A DRUG-FREE WORKPLACE. (JUL 1990)

                                     * * *

52.203-2 CERTIFICATE OF INDEPENDENT PRICE DETERMINATION. (APR 1985)

      (a) The offeror certifies that--

            (1) The prices in this offer have been arrived at independently,
without, for the purpose of restricting competition, any consultation,
communication, or agreement with any other offeror or competitor relating to (i)
those prices, (ii) the intention to submit an offer, or (iii) the methods or
factors used to calculate the prices offered;

            (2) The prices in this offer have not been and will not be knowingly
disclosed by the offeror, directly or indirectly, to any other offeror or
competitor before bid opening (in the case of a sealed bid solicitation) or
contract award (in the case of a negotiated solicitation) unless otherwise
required by law; and

            (3) No attempt has been made or will be made by the offeror to
induce any other concern to submit or not to submit an offer for the purpose of
restricting competition.

      (b) Each signature on the offer is considered to be a certification by the
signatory that the signatory--

            (1) Is the person in the offeror's organization responsible for
determining the prices being offered in this bid or proposal, and that the
signatory has not participated and will not participate in any action contrary
to subparagraphs (a)(1) through (a)(3) above; or

            (2) (i) Has been authorized in writing, to act as agent for the
following principals in certifying that those principals have not participated,
and will not participate in any action contrary to subparagraphs (a)(1) through
(a)(3) above. Linda N. Frady, Director of Contracts - East (insert full name of
person(s) in the offeror's organization responsible for determining the prices
offered in this bid or proposal, and the title of his or her position in the
offeror's organization.)

                  (ii) As an authorized agent, does certify that the principals
named in subdivision (b)(2)(i) above have not participated, and will not
participate, in any action contrary to subparagraphs (a)(1) through (a)(3)
above; and

                  (iii) As an agent, has not personally participated, and will
not participate, in any action contrary to subparagraphs (a)(1) through (a)(3)
above.
<PAGE>
                                       28

      (c) If the offeror deletes or modifies subparagraph (a)(2) above, the
offeror must furnish with its offer a signed statement setting forth in detail
the circumstances of the disclosure.

                               (End of provision)

52.203-4 CONTINGENT FEE REPRESENTATION AND AGREEMENT. (APR 1984)

      (a) Representation. The offeror represents that, except for full-time
bona fide employees working solely for the offeror, the offeror--

      Note: The offeror must check the appropriate boxes. For interpretation of
the representation, including the term "bona fide employee," see Subpart 3.4 of
the Federal Acquisition Regulation.

            (1) / / has, /XX/ has not employed or retained any person or company
to solicit or obtain this contract; and

            (2) / / has, /XX/ has not paid or agreed to pay to any person or
company employed or retained to solicit or obtain this contract any commission,
percentage, brokerage, or other fee contingent upon or resulting from the award
of this contract.

      (b) Agreement. The offeror agrees to provide information relating to the
above Representation as requested by the Contracting Officer and, when
subparagraph (a)(1) or (a)(2) is answered affirmatively, to promptly submit to
the Contracting Officer--

            (1) A completed Standard Form 119, Statement of Contingent or Other
Fees, (SF 119); or

            (2) A signed statement indicating that the SF 119 was previously
submitted to the same contracting office, including the date and applicable
solicitation or contract number, and representing that the prior SF 119 applies
to this offer or quotation.

                               (End of provision)

52.203-8 REQUIREMENT FOR CERTIFICATE Of PROCUREMENT INTEGRITY (NOV 1990) --
         ALTERNATE I. (SEP 1990)

      (a) Definitions. The definitions set forth in FAR 3.104-4 are hereby
incorporated in this provision.

      (b) Certifications. As required in paragraph (c) of this provision, the
officer or employee responsible for this offer shall execute the following
certification:

                      Certificate of Procurement Integrity

      (1) I, Linda M. Frady (Name of certifier), am the officer or employee
responsible for the preparation of this offer or bid and hereby certify that, to
the best of my knowledge and belief, with the exception of any information
described in this certificate, I have no information concerning a violation or
possible violation of subsection 27(a), (d) or (f) of the Office of Federal
Procurement Policy Act, as amended* (41 U.S.C. 423) (hereinafter referred to as
"the Act"), as implemented in the FAR, occurring during the conduct of this
procurement DTFA06-94-R-30067 (solicitation number).

      (2) As required by subsection 27(e)(1)(B) of the Act, I further certify
that, to the best of my knowledge and belief, each officer, employee, agent,
representative, and consultant of Titan Corporation (Name of offeror) who has
participated personally and substantially in the preparation or submission of
this offer has certified that he or she is familiar with, and will comply with,
the requirement of this subsection 27(a) of the Act, as
<PAGE>
                                       29

implemented in the FAR, and will report immediately to me any information
concerning a violation or possible violation of the Act, as implemented in the
FAR, pertaining to this procurement.

      (3) Violations or possible violations:

(Continue on plain bond paper if necessary and label Certificate of Procurement
Integrity (Continuation Sheet), ENTER NONE IF NONE EXISTS)

NONE

(4) I agree that, if awarded a contract under this solicitation, the
certification required by subsection 27(e)(l)(B) of the Act shall be maintained
in accordance with paragraph (f) of this provision.

(Signature of the Officer or Employee                        (Date)
Responsible for the Offer)

Linda M. Frady   /s/ Linda M. Frady                         1/18/95
--------------------------------------
(Typed Name of the Officer or Employee
Responsible for the Offer)

*The Act became effective on December 1, 1990.

THIS CERTIFICATION CONCERNS A MATTER WITHIN THE JURISDICTION OF AN AGENCY OF THE
UNITED STATES AND THE MAKING OF A FALSE, FICTITIOUS, OR FRAUDULENT CERTIFICATION
MAY RENDER THE MAKER SUBJECT TO PROSECUTION UNDER TITLE 18, UNITED STATES CODE,
SECTION 1001.

                             (End of certification)

      (c) For procurements, including contract modifications, in excess of
$100,000 made using procedures other than sealed bidding, the signed
certifications shall be submitted by the successful Offeror to the Contracting
Officer within the time period specified by the Contracting Officer when
requesting the certificates except as provided in subparagraphs (c)(1) through
(c)(5) of this clause. In no event shall the certificate be submitted
subsequent to award of a contract or execution of a contract modification:

            (1) For letter contracts, other unpriced contracts, or unpriced
contract modifications, whether or not the unpriced contract or modification
contains a maximum or not to exceed price, the signed certifications shall be
submitted prior to the award of the letter contract, unpriced contract, or
unpriced contract modification, and prior to the definitization of the letter
contract or the establishment of the price of the unpriced contract or unpriced
contract modification. The second certification shall apply only to the period
between award of the letter contact and execution of the document definitizing
the letter contract, or award of the unpriced contract or unpriced contract
modification and execution of the document establishing the definitive price of
such unpriced contract or unpriced contract modification.

            (2) For basic ordering agreements, prior to the execution of a
priced order; prior to the execution of an unpriced order, whether or not the
unpriced order contains a maximum or not to exceed price; and, prior to
establishing the price of an unpriced order. The second certificate to be
submitted for unpriced orders shall apply to the period between award of the
unpriced order and execution of the document establishing the definitive price
for such order.

            (3) A certificate is not required for indefinite delivery contracts
(see subpart 16.5) unless the total estimated value of all orders eventually to
be placed under the contract is expected to exceed $100,000.
<PAGE>
                                       30

            (4) For contracts and contract modifications which include options,
a certificate is required when the aggregate value of the contract or contract
modification and all options (see 3.104-4(e)) exceeds $100,000.

            (5) For purposes of contracts entered into under section 8(a) of the
SBA, the business entity with whom the SBA contracts, and not the SBA, shall be
required to comply with the certification requirements of subsection 27(e). The
SBA shall obtain the signed certificate from the business entity and forward the
certificate to the Contracting Officer prior to the award of a contract to the
SBA.

            (6) Failure of an Offeror to submit the signed certificate within
the time prescribed by the Contracting Officer shall cause the offer to be
rejected.

      (d) Pursuant to FAR 3.104-9(d), the Offeror may be requested to execute
additional certifications at the request of the Government. Failure of an
offeror to submit the additional certifications shall cause its offer to be
rejected.

      (e) A certification containing a disclosure of a violation or possible
violation will not necessarily result in the withholding of an award under this
solicitation. However, the Government, after evaluation of the disclosure, may
cancel this procurement or take any other appropriate actions in the interest of
the Government, such as disqualification of the Offeror.

      (f) In making the certification in subparagraph (b)(2) of the certificate,
the officer or employee of the competing contractor responsible for the offer
may rely upon a one-time certification from each individual required to submit
a certification to the competing contractor, supplemented by periodic training.
These certifications shall be maintained by the Contractor for 6 years from the
date a certifying employee's employment with the company ends or, for an agent,
representative, or consultant, 6 years from the date such individual ceases to
act on behalf of the Contractor.

      (g) Certifications under paragraphs (b) and (d) of this provision are a
material representation of fact upon which reliance will be placed in awarding a
contract.

                               (End of provision)

52.203-11 CERTIFICATION AND DISCLOSURE REGARDING PAYMENTS TO INFLUENCE CERTAIN
          FEDERAL TRANSACTIONS (APR 1991)

      (a) The definitions and prohibitions contained in the clause, at FAR
52.203-12, Limitation on payments to influence Certain Federal Transactions,
included in this solicitation, are hereby incorporated by reference in paragraph
(b) of this certification.

      (b) The offeror, by signing its offer, hereby certifies to the best of his
or her knowledge and belief that on or after December 23, 1989,-

            (1) No Federal appropriated funds have been paid or will be paid to
      any person for influencing or attempting to influence an officer or
      employee of any agency, a Member of Congress, an officer or employee of
      Congress, or an employee of a Member of Congress on his or her behalf in
      connection with the awarding of any Federal contract, the making of any
      Federal grant, the making of any Federal Loan, the entering into of any
      cooperative agreement, and the extension, continuation, renewal, amendment
      or modification of any Federal contract, grant, loan or cooperative
      agreement;

            (2) If any funds other than Federal appropriated funds (including
      profit or fee received under a covered Federal transaction) have been
      paid, or will be paid, to any person for influencing or attempting to
      influence an officer or employee of any agency, a Member of Congress, an
      officer or employee of Congress, or an employee of a Member of Congress on
      his
<PAGE>
                                       31

      or her behalf in connection with this solicitation, the offeror shall
      complete and submit, with its offer, OMB standard form LLL, Disclosure of
      Lobbying Activities, to the Contracting Officer; and

            (3) He or she will include the language of this certification in all
      subcontract awards at any tier and require that all recipients of
      subcontract awards in excess of $100,000 shall certify and disclose
      accordingly.

      (c) Submission of this certification and disclosure is a prerequisite for
making or entering into this contract imposed by section 1352, title 31, United
States Code. Any person who makes an expenditure prohibited under this provision
or who fails to file or amend the disclosure form to be filed or amended by this
provision, shall be subject to a civil penalty of not less than $10,000, and not
more than $100,000, for each such failure.

                               (End of Provision)

52.204-3 TAXPAYER IDENTIFICATION. (MAR 1994)

(a) Definitions.

      "Common parent," as used in the solicitation provision, means that
corporate entity that owns or controls an affiliated group of corporations that
files its Federal income tax returns on a consolidated basis, and of which the
Offeror is a member.

      "Corporate status," as used in this solicitation provision, means a
designation as to whether the Offeror is a corporate entity, an unincorporated
entity (e.g., sole proprietorship or partnership), or a corporation providing
medical and health care services.

      "Taxpayer Identification Number (TIN)," as used in this solicitation
provision, means the number required by the IRS to be used by the Offeror in
reporting income tax and other returns.

(b) All Offerors are required to submit the information required in paragraphs
(c) through (e) of this solicitation provision in order to comply with reporting
requirements of 26 U.S.C. 6041, 6041A, and 6050M and implementing regulations
issued by the Internal Revenue Service (IRS). If the resulting contract is
subject to reporting requirements described in FAR 4.903, the failure or refusal
by the Offeror to furnish the information may result in a 31 percent reduction
of payments otherwise due under the contract.

            (c) Taxpayer Identification Number (TIN).

            (XX) TIN: 952588754.
            (  ) TIN has been applied for.
            (  ) TIN is not required because:

            (  ) Offeror is a nonresident alien, foreign corporation, or foreign
            partnership that does not have income effectively connected with the
            conduct of a trade or business in the U.S. and does not have an
            office or place of business or a fiscal paying agent in the U.S.;

            (   ) Offeror is an agency or instrumentality of a foreign
            government;

            (   ) Offeror is an agency or instrumentality of a Federal, state or
            local government;

            (   ) Other. State basis. __________________________.
<PAGE>
                                       32

      (d) Corporate Status.

            (   ) Corporation providing medical and health care services, or
            engaged in the billing and collecting of payments for such services;

            (XX) Other corporate entity;
            (  ) Not a corporate entity;
            (  ) Sole proprietorship

            (  ) Partnership

            (  ) Hospital or extended care facility described in 26 CFR
                 501(c)(3) that is exempt from taxation under 26 CFR 501(a).

      (e) Common Parent.

            (XX) (Offeror is not owned or controlled by a common parent as
                 defined in paragraph (a) of this clause.
            (  ) Name and TIN of common parent:

Name____________________________________________________________________________

TIN_____________________________________________________________________________

                               (End of provision)

52.209-5 CERTIFICATION REGARDING DEBARMENT, SUSPENSION, PROPOSED DEBARMENT AND
         OTHER RESPONSIBILITY MATTERS. (MAY 1989)

      (a)(1) The Offeror certifies, to the best of its knowledge and belief,
that--

            (i) The Offeror and/or any of its Principals--

                  (A) Are ( ) are not (XX) presently debarred, suspended,
proposed for debarment, or declared ineligible for the award of contracts by any
Federal agency.

                  (B) Have ( ) have not (XX), within a three-year period
preceding this offer, been convicted of or had a civil judgment rendered against
them for: commission of fraud or a criminal offense in connection with
obtaining, attempting to obtain, or performing a public (Federal, state, or
local) contract or subcontract; violation of Federal or state antitrust statues
relating to the submission of offers; or commission of embezzlement, theft,
forgery, bribery, falsification or destruction of records, making false
statements, or receiving stolen property: and

                  (C) Are ( ) are not (XX) presently indicted for, or otherwise
criminally or civilly charged by a governmental entity with, commission of any
of the offenses enumerated in subdivision (a)(1)(i)(B) of this provision.

            (ii) The Offeror has ( ) has not (XX), within a three-year period
preceding this offer, had one or more contracts terminated for default by any
Federal agency.

      (2) "Principals," for the purposes of this certification, means officers;
directors; owners; partners; and, persons having primary management or
supervisory responsibilities within a business entity (e.g., general manager;
plant manager; head of a subsidiary, division, or business segment, and similar
positions).

THIS CERTIFICATION CONCERNS A MATTER WITHIN THE JURISDICTION OF AN AGENCY OF
<PAGE>

                                       33

THE UNITED STATES AND THE MAKING OF A FALSE, FICTITIOUS OR FRAUDULENT
CERTIFICATION MAY RENDER THE MAKER SUBJECT TO PROSECUTION UNDER SECTION 1001,
TITLE 18, UNITED STATES CODE.

      (b) The Offeror shall provide immediate written notice to the Contracting
Officer if, at any time prior to contract award, the Offeror learns that its
certification was erroneous when submitted or has become erroneous by reason of
changed circumstances.

      (c) A certification that any of the items in paragraph (a) of this
provision exists will not necessarily result in withholding of an award under
this solicitation. However, the certification shall be considered in connection
with a determination of the Offeror's responsibility. Failure of the Offeror to
furnish a certification or provide such additional information as requested by
the Contracting Officer may render the Offeror nonresponsible.

      (d) Nothing contained in the foregoing shall be construed to require
establishment of a system of records in order to render, in good faith, the
certification required by paragraph (a) of this provision. The knowledge and
information of an Offeror is not required to exceed that which is normally
possessed by a prudent person in the ordinary course of business dealings.

      (e) The certification in paragraph (a) of this provision is a material
representation of fact upon which reliance was placed when making award. If it
is later determined that the Offeror knowingly rendered an erroneous
certification, in addition to other remedies available to the Government, the
Contracting Officer may terminate the contract resulting from this solicitation
for default.

                               (End of provision)

52.209-7 ORGANIZATIONAL CONFLICTS OF INTEREST CERTIFICATE-MARKETING CONSULTANTS.
         (NOV 1991)

      (a) Definitions.

            (1) Marketing consultant means any independent contractor who
furnishes advise, information, direction, or assistance to an offeror or any
other contractor in support of the preparation or submission of an offer for a
government contract by that offeror. An independent Contractor is not a
marketing consultant when rendering--

                  (i) Services excluded in FAR 37.204;

                  (ii) Routine engineering and technical service (such as
installation, operation, or maintenance of systems, equipment, software,
components, or facilities);

                  (iii) Routine legal, actuarial, auditing, and accounting
services; or

                  (iv) Training services.

            (2) Organizational conflict of interest means that because of other
activities or relationships with other persons, a person is unable or
potentially unable to render impartial assistance or advice to the Government,
or the person's objectivity in performing the contract work is or might be
otherwise impaired, or a person has an unfair competitive advantage.

      (b) An individual or firm that employs, retains, or engages contractually
one or more marketing consultants in connection with a contract, shall submit to
the contracting officer, with respect to each marketing consultant, the
certificates described below, if the individual or firm is notified that it is
the apparent successful offeror.

      (c) The certificate must contain the following:

            (1) The name of the agency and the number of the solicitation in
question.

            (2) The name, address, telephone number, and federal taxpayer
identification number of the marketing consultant.

            (3) The name, address and telephone number of a responsible officer
or
<PAGE>
                                       34

employee of the marketing consultant who has personal knowledge of the marketing
consultants involvement in the contract.

            (4) A description of the nature of the services rendered by or to be
rendered by the marketing consultant.

            (5) The name, address, and telephone number of the client or
clients, and the name of a responsible officer or employee of the marketing
consultant who is knowledgeable about the service provided to such client(s),
and a description of the nature of the services rendered to such client(s), if,
based on information provided to the Contractor by the marketing consultant is
rendering or, in the 12* months preceding the date of the certificate, has
rendered services respecting the same subject matter of the instant
solicitation, or directly relating to such subject matter, to the Government or
any other client (including any foreign government or person).

            (6) A statement that the person who signs the certificate for the
prime Contractor has informed the marketing consultant of the existence of
subpart 9.5 and Office of Federal Procurement Policy Letter 89-1.

            (7) The signature, name, title, employer's name, address, and
telephone number of the persons who signed the certificates for both the
apparent successful offeror and the marketing consultant.

      (d) In addition, the apparent successful offeror shall forward to the
Contracting Officer a certificate signed by the marketing consultant that the
marketing consultant has been told of the existence of subpart 9.5 and Office of
Federal Procurement Policy Letter 89-1, and the marketing consultant has made
inquiry, and to the best of the consultant's knowledge and belief, the
consultant has provided no unfair competitive advantage to the prime Contractor
with respect to the services rendered or to be rendered in connection with the
solicitation, or that any unfair competitive advantage that, to the best of the
consultant's knowledge and belief, does or may exist, has been disclosed to the
offeror.

      (e) Failure of the offeror to provide the required certifications may
result in the offeror being determined ineligible for award. Misrepresentation
of any fact may result in the assessment of penalties associated with false
certifications or such other provisions provided for by law or regulation.

                               (End of provision)

52.215-6 TYPE OF BUSINESS ORGANIZATION. (JUL 1987)

      The offeror or quoter, by checking the applicable box, represents that:

      (a) It operates as /XX/ a corporation incorporated under the laws of the
State of Delaware, / / an individual, / / a nonprofit organization, or / / a
joint venture; or

      (b) If the offeror or quoter is a foreign entity, it operates as / / an
individual, / / a partnership, / / a nonprofit organization, / / a joint
venture, or / / a corporation, registered for business in _________. (country)

                               (End of provision)

52.215-11 AUTHORIZED NEGOTIATORS. (APR 1984)

      The offeror or quoter represents that the following persons are authorized
to negotiate on its behalf with the Government in connection with this request
for proposals or quotations:

--------------------------------------------------------------------------------

<PAGE>
                                       35

Sherrie R. Manuel, Contracts Representative (703) 758-5642
--------------------------------------------------------------------------------

Linda M. Frady, Director of Contracts -- East (703) 758-5640
--------------------------------------------------------------------------------

                               (End of provision)

52.219-1 SMALL BUSINESS CONCERN REPRESENTATION. (JAN 1991)

      (a) Representation. The offeror represents and certifies as part of its
offer that it / / is, /XX/ is not a small business concern and that / / all,
/XX/ not all end items to be furnished will be manufactured or produced by a
small business concern in the United States, its territories or possessions,
Puerto Rico, or the Trust Territory of the Pacific Islands.

      (b) Definition. Small business concern, as used in this provision, means a
concern, including its affiliates, that is independently owned and operated, not
dominant in the field of operation in which it is bidding on Government
contracts, and qualified as a small business under the size standards in this
solicitation.

      (c) Notice. Under 15 U.S.C. 645(d), any person who misrepresents a firm's
status as a small business concern in paragraph (a) of this clause in order to
obtain a contract to be awarded under the preference programs established
pursuant to sections 8(a), 8(b), 9, or 15 of the Small Business Act or any other
provision of Federal law that specifically references section 8(d) for a
definition of program eligibility, shall--

            (1) be punished by imposition of fine, imprisonment, or both;

            (2) be subject to administrative remedies, including suspension and
debarment; and

            (3) be ineligible for participation in programs conducted under the
authority of the Act.

                               (End of provision)

52.219-2 SMALL DISADVANTAGED BUSINESS CONCERN REPRESENTATION. (FEB 1990)

      (a) Representation. The offeror represents that it / / is, /XX/ is not a
small disadvantaged business concern.

      (b) Definitions.

      Asian-Pacific American, as used in this provision, means a United States
citizen whose origins are in Japan, China, the Philippines, Vietnam, Korea,
Samoa, Guam, the U.S. Trust Territory of the Pacific Islands (Republic of
Palau), the Northern Mariana Islands, Laos, Kampuchea (Cambodia), Taiwan, Burma,
Thailand, Malaysia, Indonesia, Singapore, Brunei, Republic of the Marshall
Islands, or the Federated States of Micronesia.

      Indian tribe, as used in this provision, means any Indian tribe, band,
nation, or other organized group or community of Indians, including any Alaska
Native Corporation as defined in 13 CFR 124.100 which is recognized as eligible
for the special programs and services provided by the U.S. to Indians because of
their status as Indians, or which is recognized as such by the State in which
such tribe, band, nation, group, or community resides.

      Native Americans, as used in this provision, means American Indians,
Eskimos, Aleuts, and native Hawaiians.

      Native Hawaiian Organizations, as used in this provision, means any
community service organization serving Native Hawaiians in, and charted as a
not-for-profit organization by, the State of Hawaii, which is controlled by
Native Hawaiians, and whose business activities will principally benefit such
<PAGE>
                                       36

Native Hawaiians.

      Small business concern, as used in this provision, means a concern,
including its affiliates, that is independently owned and operated, not dominant
in the field of operation in which it is bidding on Government contracts, and
qualified as a small business under the criteria and size standards in 13 CFR
121.

      Small disadvantaged business concern, as used in this provision, means a
small business concern that (a) is at least 51 percent unconditionally owned by
one or more individuals who are both socially and economically disadvantaged, or
a publicly owned business having at least 51 percent of its stock
unconditionally owned by one or more socially and economically disadvantaged
individuals and (b) has its management and daily business controlled by one or
more such individuals. This term also means a small business concern that is at
least 51 percent unconditionally owned by an economically disadvantaged Indian
tribe or Native Hawaiian Organization, or a publicly owned business having at
least 51 percent of its stock unconditionally owned by one of these entities
which has its management and daily business controlled by members of an
economically disadvantaged Indian tribe or Native Hawaiian Organization, and
which meets the requirements of 13 CFR 124.

      Subcontinent Asian American, as used in this provision, means a United
States citizen whose origins are in India, Pakistan, Bangladesh, Sri Lanka,
Bhutan, or Nepal.

      (c) Qualified groups. The offeror shall presume that socially and
economically disadvantaged individuals include Black Americans, Hispanic
Americans, Native Americans, Asian-Pacific Americans, Subcontinent Asian
Americans, and other individuals found to be qualified by SBA under 13 CFR 124.
The offeror shall presume that socially and economically disadvantaged entities
also include Indian tribes and Native Hawaiian Organizations.

                               (End of provision)

52.219-3 WOMEN-OWNED SMALL BUSINESS REPRESENTATION. (APR 1984)

      (a) Representation. The offeror represents that it / / is, /XX/ is not a
women-owned small business concern.

      (b) Definitions.

      "Small business concern," as used in this provision, means a concern,
including its affiliates, that is independently owned and operated, not dominant
in the field of operation in which it is bidding on Government contracts, and
qualified as a small business under the criteria and size standards in 13 CFR
121.

      "Women-owned," as used in this provision, means a small business that is
at least 51 percent owned by a woman or women who are U.S. citizens and who also
control and operate the business.

                               (End of provision)

52.219-22 SIC CODE AND SMALL BUSINESS SIZE STANDARD. (JAN 1991)

      (a) The standard industrial classification (SIC) code for this acquisition
is 8999.

      (b) (1) The small business size standard is $3.5 million.

      (2) The small business size standard for a concern which submits an offer
in its own name, other than on a construction or service contract, but which
proposes to furnish a product which it did not itself manufacture, is 500
employees.

                               (End of provision)
<PAGE>
                                       37

52.222-19 WALSH-HEALEY PUBLIC CONTRACTS ACT REPRESENTATION. (APR 1984)

N/A

      The offeror represents as a part of this offer that the offeror is / / or
is not / / a regular dealer in, or is / / or is not / / a manufacturer of, the
supplies offered.

                               (End of provision)

52.222-22 PREVIOUS CONTRACTS AND COMPLIANCE REPORTS. (APR 1984)

      The offeror represents that--

      (a) It /XX/ has, / / has not participated in a previous contract or
subcontract subject either to the Equal Opportunity clause of this solicitation,
the clause originally contained in Section 310 of Executive Order No. 10925, or
the clause contained in Section 201 of Executive Order No. 11114;

      (b) It /XX/ has, / / has not, filed all required compliance reports; and

      (c) Representations indicating submission of required compliance reports,
signed by proposed subcontractors, will be obtained before subcontract awards.

                               (End of provision)

52.222-25 AFFIRMATIVE ACTION COMPLIANCE. (APR 1984)

      The offeror represents that (a) it /XX/ has developed and has on file, / /
has not developed and does not have on file, at each establishment, affirmative
action programs required by the rules and regulations of the Secretary of Labor
(41 CFR 60-1 and 60-2), or (b) it / / has not previously had contracts subject
to the written affirmative action programs requirement of the rules and
regulations of the Secretary of Labor.

                               (End of provision)

52.223-1 CLEAN AIR AND WATER CERTIFICATION. (APR 1984)

The Offeror certifies that--

      (a) Any facility to be used in the performance of this proposed contract
is / /, is not /XX/ listed on the Environmental Protection Agency (EPA) List of
Violating Facilities;

      (b) The Offeror will immediately notify the Contracting Officer, before
award, of the receipt of any communication from the Administrator, or a
designee, of the EPA, indicating that any facility that the Offeror proposes to
use for the performance of the contract is under consideration to be listed on
the EPA List of Violating Facilities; and

      (c) The Offeror will include a certification substantially the same as
this certification, including this paragraph (C), in every nonexempt
subcontract.

                               (End of provision)

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                 Page       of       Pages
                        ORDER FOR SUPPLIES OR SERVICES                                                   1
----------------------------------------------------------------------------------------------------------------------------------
       IMPORTANT: Mark all packages and papers with contract and/or order numbers.
----------------------------------------------------------------------------------------------------------------------------------
  1. Date of Order               2. Contract No. (IF ANY)               3. Order No.            4. Requisition/Reference No.
09/11/95                            DTFA0695C30063                         DTFA06-95-F-31577       571338164
----------------------------------------------------------------------------------------------------------------------------------
  5. Issuing Office (ADDRESS CORRESPONDENCE TO)   6.  Ship To: (COSIGNEES AND ADDRESS, ZIP CODE)
DOT/FEDERAL AVIATION ADMINISTRATION                   DOT/FEDERAL AVIATION ADMINISTRA
ACQUISITION & REAL ESTATE, TEA, AS055.08              M/F: WILLIAM FORD 202-267-8970
1701 COLUMBIA AVENUE                                  INFORMATION RESOURCE MANAGEMENT DIVISI
COLLEGE PARK, GEORGIA                                 800 INDEPENDENCE AVENUE, S.W., ROOM 73
                                                      WASHINGTON, DC,
               30337-2714
                                                                       20591
----------------------------------------------------------------------------------------------------------------------------------
  7. To: Contractor (NAME, ADDRESS AND ZIP CODE)                8. Type of Order
                                                                / / A. PURCHASE --Reference your _______________
                       TITAN CORPORATION                       PROPOSAL DTD 9/8/95
                       TITAN SYSTEMS DIVISION                  -------------------------------------------------------------------
                       1900 CAMPUS COMMONS DRIVE, STE 400      Please furnish the following on the terms and
                       RESTON                    VA 22091-     conditions specified on both sides of this order
                                                               and on the attached sheets, if any, including
                                                               delivery as indicated.  This purchase is
                                                               negotiated under authority of:
                                                               -------------------------------------------------------------------
                                                               /X/ B. DELIVERY --Except for billing instructions
                                                               on the reverse, this delivery order is subject to
                                                               instructions contained on this side only of this
                                                               form and is issued subject to the terms and
                                                               conditions of the above-numbered contract.
----------------------------------------------------------------------------------------------------------------------------------
  9. Accounting and Appropriation Data       10. Requisitioning Office
W/582/0/G531/5C1600/2596/98750118                                  AS052
OBLIG TOTAL               [...***...]        -------------------------------------------------------------------------------------
2211 CHARGES              [...***...]        11. Business Classification (CHECK APPROPRIATE BOX(ES))
                                              / / SMALL   /XX/ OTHER THAN SMALL   / /DISADVANTAGED   / / WOMAN OWNED
----------------------------------------------------------------------------------------------------------------------------------
  12. F.O.B. Point                       14. Government B/L No.         15. Deliver to F.O.B. Point      16. Discount Terms
DESTINATION                                                                 On or Before (DATE)
----------------------------------------
  13. Place of Inspection and Acceptance                                          09/15/95
DESTINATION                                                                     THRU 02/01/97                  [...***...]
----------------------------------------------------------------------------------------------------------------------------------
                                    17. Schedule (SEE REVERSE FOR REJECTIONS)
----------------------------------------------------------------------------------------------------------------------------------
Item                                              Quantity                        Unit                          Quantity
 No.                Supplies or Services          Ordered          Unit          Price           Amount         Accepted
 (A)                          (B)                   (C)            (D)            (E)             (F)              (G)
----------------------------------------------------------------------------------------------------------------------------------

       PR FEF: 571338164 -001
  1  SERVICES                                   [...***...]         EA         [...***...]                     [...***...]
       DEVELOP PROOF OF CONCEPT FUNCTIONAL
       COMPONENT OF A REGIONAL INFORMATION
       SYSTEM IN SUPPORT OF ASSURING
       SUSTAINED OPERATION OF NAS DURING
       EMERGENCIES AND DYNAMIC SYSTEM
       CHANGES IN ACCORDANCE WITH TASK
       DESCRIPTION AND CONTRACTOR'S
       PROPOSAL DATED 9/8/95.

       TOTAL PRICE OF TASK: [...***...]
       INCREMENTAL FUNDING IS PROVIDED IN
       THE AMOUNT OF [...***...]

----------------------------------------------------------------------------------------------------------------------------------
                    18. Shipping Point        19. Gross Shipping Weight       20. Invoice No.                    17(H). To
   SEE BILLING                                                                                                     (CONT.
  INSTRUCTIONS                                                                                                     PAGES)
       ON           --------------------------------------------------------------------------------------------------------------
    REVERSE         21. Mail Invoice to: (INCLUDE ZIP CODE) FAA, ATTN: W. P. FORD, AFZ-500                       17(I).
                      (202) 267-8970                         800 INDEPENDANCE AVE., S.E.                           GRAND
                                                             WASHINGTON, DC       20591-           [...***...]     TOTAL
----------------------------------------------------------------------------------------------------------------------------------
 17. UNITED STATES OF AMERICA                                                 23. NAME (TYPED)  (404) 305-5778
        BY (SIGNATURE)           /s/ Marjorie M. Brooks                           MARJORIE M. BROOKS
                                                                                       Title: Contracting/Ordering Officer
----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

09/11/95                           DTFA0695C30063              DTFA06-95-F-31577

       CONTRACTOR SHALL NOT PERFORM WORK
       IN EXCESS OF [...***...] UNTIL FURTHER
       INCREMENTAL FUNDING IS PROVIDED.

       MONTHLY MILESTONE BILLING IS
       INCLUDED IAW ATTACHED SCHEDULE.

ACCT:  W/582/0/G531/5C1600/2596/98750118             OBLG TOTAL:    [...***...]

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT                                                       1       2
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0011                          01-15-98              871338040
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.04
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)

---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.
 X
---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Functional
         Component of Regional Information System (REGIS Development) is hereby modified
         to include additional incremental funding in the amount of [...***...].

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                EMANUEL GREEN, JR.
                                                                404-305-5776
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Emanuel Green, Jr.                      2/26/98
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>

                                                                          PAGE 2

     0011                01-15-98                       DTFA06-95-F-31577

     PR REF.: 871338040 -001
2 SERVICES                    [...***...] EA      [...***...]        [...***...]
     ADDITIONAL INCREMENTAL FUNDING

ACCT: W/801/0/8030/270/2596/                          OBLG TOTAL:    [...***...]
ACCT: 2/982A/0/8070//3130/13071709                    OBLG TOTAL:    [...***...]
ACCT: 2/882A/0/8070//3130/13060549                    OBLG TOTAL:    [...***...]
ACCT: 2/982A/0/8070//3130/13071899                    OBLG TOTAL:    [...***...]

                                      THIS AWARD IS INCREASED BY:    [...***...]
                                                            FROM:    [...***...]
                                                              TO:    [...***...]

******************************** ACCOUNTING DETAILS ****************************

PR NUMBER  RGN  APPR   LIM    C/C     PGM      OBJ      PROJECT #

871338040   W   801     0     8030    270      2596
OBLG TOTAL    [...***...]   TRAN CHG                    .00  2211 CHG        .00

871338040   2   982A    0     8070             3130     13071709
OBLG TOTAL    [...***...]   TRAN CHG                    .00  2211 CHG        .00

871338040   2   882A    0     8070             3130     13060459
OBLG TOTAL    [...***...]   TRAN CHG                    .00  2211 CHG        .00

871338040   2   982A    0     8070             3130     13071899
OBLG TOTAL    [...***...]   TRAN CHG                    .00  2211 CHG        .00

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0010                          09-19-97              771338101
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)

---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
 X     FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Functional
         Component of Regional Information System (REGIS Development) is modified
         to include incremental funding in the amount of [...***...].

         Performance time for this task is extended through August 9, 2000.

                               *** End of Modification 0010 ***

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Marjorie M. Brooks                      9/19/97
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>

                                                                          PAGE 2

     0010                09-19-97                       DTFA06-95-F-31577

                                      THIS AWARD IS INCREASED BY:    [...***...]
                                                            FROM:    [...***...]
                                                              TO:    [...***...]

******************************** ACCOUNTING DETAILS ****************************

PR NUMBER  RGN  APPR   LIM    C/C     PGM      OBJ      PROJECT #

771338101   W   701     0     8030    270      3105
OBLG TOTAL      [...***...]  TRAN CHG                    .00  2211 CHG      .00

771338101   2   701     0     8043    216      2105
OBLG TOTAL      [...***...]  TRAN CHG                    .00  2211 CHG      .00

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0009                          09-02-97              771338085
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/701/0/8030/270/2596/                                                                                 [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
 X     FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional Component
         of Regional Information System (REGIS Development) is hereby modified
         to include incremental funding in the amount of [...***...].
                               *** End of Modification 0009 ***

                                      THIS AWARD IS INCREASED BY:     [...***...]
                                                            FROM:     [...***...]
                                                              TO:     [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Marjorie M. Brooks                      9/2/97
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                        * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0008                          07-08-97              771338068
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/701/0/8030/270/2596/                                                                                 [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
 X     FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, to Develop Proof of Concept Functional Component
         of Regional Information System (REGIS Development) is modified to include
         incremental funding in the amount of [...***...].
                               *** End of Modification 0008 ***

                                      THIS AWARD IS INCREASED BY:     [...***...]
                                                            FROM:     [...***...]
                                                              TO:     [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Marjorie M. Brooks                      7/8/97
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                       * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0007                          05-29-97              771338057                       71689
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    Z/982A/0/8070/000000/2596/44071689                                                                     [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
 X     FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, to Develop Proof of Concept Functional Component
         of Regional Information System (REGIS Development) is modified to include
         incremental funding in the amount of [...***...].
                               *** End of Modification 0007 ***

                                      THIS AWARD IS INCREASED BY:     [...***...]
                                                            FROM:     [...***...]
                                                              TO:     [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Marjorie M. Brooks                      5/29/97
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                       *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0006                          05-06-97              771338049
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/701/0/8030/270/2596/                                                                                 [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:
 X     FAR 52.243-4
---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    / / is not,    /X/ is    required to sign this document and
   return  2  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional Component
         of Regional Information System (REGIS Development) is modified to include
         additional incremental funding in the amount of [...***...].
                               *** End of Modification 0006 ***

                                      THIS AWARD IS INCREASED BY:    [...***...]
                                                            FROM:    [...***...]
                                                              TO:    [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
     Peggy A. Owens                                             MARJORIE M. BROOKS
     Contracts Manager                                          404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

     /s/ Peggy A. Owens                      12 May 97     BY /s/ Marjorie M. Brooks                      8/4/97
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0005                          02-11-97              771338030
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    2/701/0/8021/270/2596/                                                                                 [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:
 X     FAR 52.243-4
---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    / / is not,    /X/ is    required to sign this document and
   return  2  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional Component
         of Regional Information System (REGIS Development) is modified to include
         incremental funding in the amount of [...***...].

         Performance under this task order is extended for a period of eighteen (18) months
         through August 9, 1998.

                               *** End of Modification 0005 ***

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
     Sherrie R. Manuel                                          MARJORIE M. BROOKS
     Contracts Representative                                   404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

     /s/ Sherrie R. Manuel                   19 FEB 97     BY /s/ Marjorie M. Brooks                      4/4/97
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                     * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>

                                                                          PAGE 2

     0005                02-11-97                       DTFA06-95-F-31577

                                      THIS AWARD IS INCREASED BY:    [...***...]
                                                            FROM:    [...***...]
                                                              TO:    [...***...]

                        * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0004                          09-30-96              671338136
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    SEE ATTACHED
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
 X     CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional Component
         of Regional Information System (REGIS Development) is modified to include
         incremental funding in the amount of  [...***...].
                               *** End of Modification 0004 ***

                                      THIS AWARD IS INCREASED BY:    [...***...]
                                                            FROM:    [...***...]
                                                              TO:    [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Marjorie M. Brooks                      10/18/96
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0003                          09-10-96              671338119                       PR#60681
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)

---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
 X     CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional Component
         of Regional Information System (REGIS Development) is modified to include
         incremental funding in the amount of [...***...].

                               *** End of Modification 0003 ***

                                      THIS AWARD IS INCREASED BY:    [...***...]
                                                            FROM:    [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Marjorie M. Brooks                      9/10/96
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>

                                                                          PAGE 2

     0003                09-10-96                       DTFA06-95-F-31577

                                                              TO:    [...***...]

******************************** ACCOUNTING DETAILS ****************************

PR NUMBER  RGN  APPR   LIM    C/C     PGM      OBJ      PROJECT #

671338119   W   682A    0     G531    4A0700   2596     98750116
OBLG TOTAL     [...***...]  TRAN CHG                    .00  2211 CHG        .00

671338119   W   601     0     8030    250      2596
OBLG TOTAL     [...***...]  TRAN CHG                    .00  2211 CHG        .00

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0002                          08-16-96              671338106
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/682A/0/G531/4A0700/2596/98750116                                                                    [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
 X     CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    / / is not,    /X/ is    required to sign this document and
   return  2  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional Component
         of Regional Information System (REGIS Development) is modified to include
         incremental funding in the amount of [...***...].

                               *** End of Modification 0002 ***

                                      THIS AWARD IS INCREASED BY:    [...***...]
                                                            FROM:    [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
     Sherrie R. Manuel, Contracts Representative                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

     /s/ Sherrie R. Manuel                   27 AUG 96     BY /s/ Marjorie M. Brooks                      11/25/96
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>

                                                                          PAGE 2

     0002                08-16-96                       DTFA06-95-F-31577

                                                              TO:    [...***...]

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0001                          06-05-96              671338062                       50118
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/782A/0/G531/3A0200/2596/98750118                                                                    [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)
---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:
 X     FAR 52.243-4
---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    / / is not,    /X/ is    required to sign this document and
   return  2  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional Component
         of Regional Information System in Support of Assuring Sustained Operation of
         NAS During Emergencies and Dynamic System Changes is modified to include
         incremental funding in the amount of [...***...].

                               *** End of Modification 0001 ***

                                      THIS AWARD IS INCREASED BY:    [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
     Sherrie R. Manuel, Contracts Representative                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

     /s/ Sherrie R. Manuel                   6/13/96       BY /s/ Marjorie M. Brooks                      7/10/96
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                                  INSTRUCTIONS

Instructions for items other than those that are self-explanatory, are as
follows:

(a)  ITEM 1 (CONTRACT ID CODE).  Insert the contract type identification code
     that appears in the title block of the contract being modified.

(b)  ITEM 3 (EFFECTIVE DATE).

     (1)  For a solicitation amendment, change order, or administrative
          change, the effective date shall be the issue date of the
          amendment, change order, or administrative change.

     (2)  For a supplemental agreement, the effective date shall be the date
          agreed to by the contracting parties.

     (3)  For a modification issued as an initial or confirming notice of
          termination for the convenience of the Government, the effective
          date and the modification number of the confirming notice shall be
          the same as the effective date and modification number of the
          initial notice.

     (4)  For a modification converting a termination for default to a
          termination for the convenience of the Government, the effective
          date shall be the same as the effective date of the termination for
          default.

     (5)  For a modification confirming the contracting officer's
          determination of the amount due in settlement of a contract
          termination, the effective date shall be the same as the effective
          date of the initial decision.

(c)  ITEM 6 (ISSUED BY). Insert the name and address of the issuing office.
     If applicable, insert the appropriate issuing office code in the code
     block.

(d)  ITEM 8 (NAME AND ADDRESS OF CONTRACTOR). For modifications to a contract
     or order, enter the contractor's name, address, and code as shown in
     the original contract or order, unless changed by this or a previous
     modification.

(e)  ITEMS 9, (AMENDMENT OF SOLICITATION NO. - DATED), AND 10, (MODIFICATION
     OF CONTRACT/ORDER NO. - DATED).  Check the appropriate box and in the
     corresponding blanks insert the number and date of the original
     solicitation, contract, or order.

(f)  ITEM 12 (ACCOUNTING AND APPROPRIATION DATA).  When appropriate, indicate
     the impact of the modification on each affected accounting
     classification by inserting one of the following entries:

     (1)  Accounting classification .........................................
                Net increase        $........................................

     (2)  Accounting classification .........................................
                Net increase        $........................................

     NOTE: If there are changes to multiple accounting classifications that
     cannot be placed in block 12, insert an asterisk and the words "See
     continuation sheet".

(g)  ITEM 13.  Check the appropriate box to indicate the type of
     modification. Insert in the corresponding blank the authority under
     which the modification is issued. Check whether or not contractor must
     sign this document. (see FAR 43.103.)

(h)  ITEM 14 (DESCRIPTION OF AMENDMENT/MODIFICATION).

     (1) Organize amendments or modifications under the appropriate Uniform
         Contract Format (UCF) section headings from the applicable
         solicitation or contract. The UCF table of contents, however,
         shall not be set forth in this document.

     (2) Indicate the impact of the modification on the overall total
         contract price by inserting one of the following entries:

         (i)    Total contract price increased by $...........................

         (ii)   Total contract price decreased by $...........................

         (iii)  Total contract price unchanged.

     (3) State reason for modification.

     (4) When removing, reinstating, or adding funds, identify the contract
         items and accounting classifications.

     (5) When the SF 30 is used to reflect a determination by the contacting
         officer of the amount due in settlement of a contract terminated for
         the convenience of the Government, the entry in Item 14 of the
         modification may be limited to --

         (i)    A reference to the letter determination; and

         (ii)   A statement of the net amount determined to be due in
                settlement of the contract.

     (6) Include subject matter or short title of solicitation/contract where
         feasible.

(i)  ITEM 16B.  The contracting officer's signature is not required on
     solicitations amendments. The contracting officer's signature is
     normally affixed last on supplemental agreements.

<PAGE>

                                                                          PAGE 2

     0001                06-05-96                       DTFA06-95-F-31577

                                                            FROM:    [...***...]
                                                              TO:    [...***...]

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  1
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD:      11-SEP-1995          CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:   27-SEP-1999             DTFA0695C30063                        DTFA0695F31577                        13
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
 TITAN SYSTEMS DIVISION                                             DOT/FAA
 1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
 SUITE 400                                                          PO Box 45719
 RESTON, VA 22091                                                   Atlanta, GA  30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
 Sherry Manuel                                                     ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
 703-758-5642                                                      PO Box 20636
                                                                   Atlanta, GA 30320

--------------------------------------------------------------
F.O.B. POINT:    Destination        SHIP VIA:  Best Means

DISCOUNT TERMS:  Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD:       [...***...]

Donna M. Bonner                                                                           FROM:       [...***...]
404-305-5987
                                                                           AWARD IS CHANGED BY:       [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / /is, / / is not required to sign this document and return __ copies to the issuing office.   OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:  Donna M. Bonner

                                                                    BY:
DATE SIGNED:                                                        Emanuel Green Jr                DATE SIGNED: 30 Sep 99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
 12  Provide incremental funding to the REGIS        [...***...]    Each             [...***...]           [...***...]
     contract, task DTFA06-95-F-31577

               REQUISITION NO. 9901876      PRI CODE: 5-4

     SHIPMENT  AWA                                                                   QUANTITY
                                                                                     --------
     #1      800 Independence Ave, SW                                              [...***...]
             Washington, DC 20951

               W.901-.0--.---270---.8030--.252B.480100.-.--.-.-------                 AMOUNT
                                                                                      ------
NOTE TO VENDOR                                                                    [...***...]

Task Order Number DTFA06-95-F-31577 to Develop Proof of Concept Funtional Component of Regional Information System (REGIS
Development) is hereby modified to include additional incremental funding in the amount of [...***...].

There are no other changes for Modification No. 0022.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  1
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 27-SEP-1995             DTFA0695C30063                         DFTA069F31577                               12
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY:
DATE SIGNED:                                                        /s/ Emanuel Green, Jr.        DATE SIGNED: 9/27/99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
11 Provide incremental funding for REGIS contract     [...***...]   Each             [...***...]           [...***...]
   for task #DTFA06-95-F-31577

               REQUISITION NO. 9901862       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     #1  800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                       [...***...]

         W.901-.0--.---.270---.8030--.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]
NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577 to Develop Proof of Concept Funtional Component of Regional Information System (REGIS
Development) is hereby modified to include additional incremental funding in the amount of [...***...].

There are no other changes for Modification No. 0021.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  1
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 27-SEP-1995             DTFA0695C30063                         DFTA069F31577                               11
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Donna M. Bonner
DATE SIGNED:                                                            Donna M Bonner            DATE SIGNED: 9/30/99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
10 Provide incremental funding to the REGIS contract.  [...***...]  Each             [...***...]           [...***...]
   Task DTFA06-95-F31577

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9901852       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     #1  800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                       [...***...]
     MARK FOR: Melanie Boteler

         W.901-.0--.---.270---.8030--.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]
NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577 to Develop Proof of Concept Funtional Component of Regional Information System (REGIS
Development) is hereby modified to include additional incremental funding in the amount of [...***...].

There are no other changes for Modification No. 0020.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  4
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 29-SEP-1995             DTFA0695C30063                         DFTA069F31577                               10
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / /is, / / is not required to sign this document and return __ copies to the issuing office.   OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY:
DATE SIGNED:                                                        /s/ Donna M Bonner            DATE SIGNED: 9/29/99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
1 DEVELOPMENMT OF THE REGIS SYSTEM                   [...***...]   US Dollar         [...***...]          [...***...]

                                           PLACE OF INSPECTION AND ACCEPTANCE: Destination

     SHIPMENT ASO                                                                    QUANTITY
     #1  PO Box 20636                                                                --------
         Atlanta, GA 30320                                                        [...***...]

         W.901-.0--.---.270---.8030---.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

***LINE 2 WAS CANCELLED***
NOTE TO VENDOR

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  4
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 29-SEP-1999             DTFA0695C30063                         DTFA069F31577                               10
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
3 This procurement will obligate funds to the task   [...***...]    Each             [...***...]          [...***...]
  order DTFA06-95-F-31577 development and deployment
  of the Regional Information System (REGIS) and
  incremental funding of [...***...].

Non-ISO 9000                               PLACE OF INSPECTION AND ACCEPTANCE: Destination

         REQUISITION NO. 9900694            PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     #1  800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                     [...***...]

MARK FOR: Boteler, Melanie

         W.901-.0--.---.270---.8030---.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Functional Components of Regional Information System (REGIS
Development) is hereby modified to include additional funding in the amount of [...***...].

There are not other changes for Modification No. 0013.

Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Functional Components of Regional Information System (REGIS
Development) is hereby extends the period of performance.

Performance time for this task is extended through August 9, 20001.

                End of Modification No. 0014.

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
4 To provide incremental funding to the REGIS        [...***...]    Each             [...***...]          [...***...]
  CONTRACT for Task #DTFA06-95-F-31577.

Non-ISO 9000                               PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9901417       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     #1  800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                       [...***...]

MARK FOR: Boteler, Melanie

         7.982W.0--.---.810---.8056---.2596.480100.-.--.-.00097789-
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Functional Component of Regional Information System (REGIS
Development) is hereby modified to include additional funding in the amount of [...***...].

There are no other changes for Modification No. 0015.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     3  of  4
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 29-SEP-1999             DTFA0695C30063                         DTFA0695F31577                              10
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
5 To provide incremental funding to the REGIS        [...***...]    Each            [...***...]           [...***...]
  Contract. Task #DTFA06-95-F-31577.

Non-ISO 9000                                  PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9901471       PRI CODE: 5-4

     SHIPMENT 76943ANF                                                               QUANTITY      DELIVER BY
     #1  6943AN FEDERAL AVIATION ADMIN                                               --------      ----------
         ASO-420                                                                    [...***...]   27-AUG-1999
         1701 COLUMBIA AVE
         COLLEGE PARK, GA 303372745

MARK FOR: Melanie Boteler

         7.982W.0--.---.810---.8056---.2596.480100.-.--.-.00097789-
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Funtional Component of Regional Information System (REGIS
Development) is hereby modified to include additional incremental funding in the amount of [...***...].

There are no other changes for Modification No. 0016.

***LINE 6 WAS CANCELLED***
***LINE 7 WAS CANCELLED***

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
8 To provide incremental funding to the REGIS        [...***...]    Each             [...***...]           [...***...]
  contract for Task Order #DTFA-95-31577.

Non-ISO 9000

               REQUISITION NO. 9901586       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     #1  800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                       [...***...]

         W.901-.0--.---.270---.8030---.3105.480100.-.--.-.--------
                                                                                      AMOUNT
                                                                                      ------
                                                                                    [...***...]

NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Funtional Component of Regional Information System (REGIS
Development) is hereby modified to include additional incremental funding in the amount of [...***...].

There are no other changes for Modification No. 0017.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION
                                                                                                                    4  of  4
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 29-SEP-1999             DTFA0695C30063                         DTFA0695F31577                              10
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
9 This procurement will obligate funds to the task    [...***...]   Each             [...***...]           [...***...]
  order DTFA06-95-F-31577 development and deployment
  of the Regional Information System (REGIS) and
  incremental funding of [...***...].

  Non-ISO 9000

               REQUISITION NO. 9901360       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     #1  800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                       [...***...]

         W.901-.0--.---.270---.8A50---.252B.480100.-.--.-.--------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577 to Develop Proof of Concept Funtional Component of Regional Information System (REGIS
Development) is hereby modified to include additional incremental funding in the amount of [...***...].

There are no other changes for Modification No. 0018.

This Modification is written to correct the accounting codes for PR 9901586 and 9901360.

There are no other changes for Modification No. 0019.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLICABLE)
       0009                          09-02-97              771338085
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/701/0/8030/270/2596/                                                                                [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(X) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
 X     FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1. Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional
         Component of Regional Information System (REGIS Development) is modified
         to include incremental funding in the amount of [...***...].
                               *** End of Modification 0009 ***

                                      THIS AWARD IS INCREASED BY:   [...***...]
                                                            FROM:   [...***...]
                                                              TO:   [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Marjorie M. Brooks                      9/2/97
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLICABLE)
       0008                          07-08-97              771338068
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/701/0/8030/270/2596/                                                                                [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(X) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
 X     FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional
         Component of Regional Information System (REGIS Development) is modified
         to include incremental funding in the amount of [...***...].
                               *** End of Modification 0008 ***

                                      THIS AWARD IS INCREASED BY:   [...***...]
                                                            FROM:   [...***...]
                                                              TO:   [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Marjorie M. Brooks                      7/8/97
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLICABLE)
       0007                          05-29-97              771338057                       71689
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-95-F-31577
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    2/982A/0/8070/000000/2596/44071689                                                                    [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(X) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
 X     FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional
         Component of Regional Information System (REGIS Development) is modified
         to include incremental funding in the amount of [...***...].
                               *** End of Modification 0007 ***

                                      THIS AWARD IS INCREASED BY:   [...***...]
                                                            FROM:   [...***...]
                                                              TO:   [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Marjorie M. Brooks                      5/29/97
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  1
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 27-SEP-1999             DTFA0695C30063                         DTFA0695F31577                               6
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / /is, / / is not required to sign this document and return __ copies to the issuing office.   OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Donna M Bonner
DATE SIGNED:                                                        Donna M Bonner                DATE SIGNED: 27 Sep 99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
6 To provide incremental funding to the REGIS        [...***...]    Each             [...***...]           [...***...]
  contract for Task Order #DTFA-95-31577

            REQUISITION NO. 9901586           PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     #1  800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                      [...***...]

         W.901-.0--.---.270---.8030---.3105.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

NOTE TO VENDOR
Task Order DTFA06-95-F-31577, to Develop Proof of Concept Funtional Component of Regional Information System (REGIS Development)
is hereby modfied to include additional incremental funding in the amount of [...***...].

There are no other changes for Modification No. 0017.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  1
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:                         DTFA0695C30063                         DTFA0695F31577                          5
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Donna M. Bonner
DATE SIGNED:                                                        Donna M. Bonner               DATE SIGNED: 15 Sep 99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
5  To provide incremental funding to the
   REGIS Contract.                                   [...***...]    Each             [...***...]           [...***...]
   Task #DTFA06-95-F-31577.

               REQUISITION NO. 9901471       PRI CODE: 5-4

     SHIPMENT  76943ANF                                                              QUANTITY              DELIVERY BY
     #1  6943AN FEDERAL AVIATION ADMIN                                               --------              -----------
         ASO-420                                                                    [...***...]              27-AUG-1999
         1701 COLUMBIA AVE
         COLLEGE PARK, GA 303372745

         7.982W.0--.---.810---.8056--.2596.480100.-.--.-.00097789-
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]
NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Funtional Component of Regional Information System (REGIS
Development) is hereby modified to include additional incremental funding in the amount of [...***...].

There are no other changes for Modification No. 0016.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  1
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:                         DTFA0695C30063                         DTFA0695F31577                          4
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Donna M. Bonner
DATE SIGNED:                                                        Donna M. Bonner               DATE SIGNED: 8/18/99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
4  To provide incremental funding to the             [...***...]    Each             [...***...]           [...***...]
   REGIS CONTRACT for Task #DTFA06-95-F-31577.

               REQUISITION NO. 9901417       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     #1  800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                       [...***...]

         7.982W.0--.---.810---.8056--.2596.480100.-.--.-.00097789-
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]
NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Funtional Component of Regional Information System (REGIS
Development) is hereby modified to include additional incremental funding in the amount of [...***...].

There are no other changes for Modification No. 0015.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:                         DTFA0695C30063                         DTFA0695F31577                          3
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Emanuel Green, Jr.
DATE SIGNED:                                                        Emanuel Green Jr              DATE SIGNED: 4/26/99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
1  DEVELOPMENT OF THE REGIS SYSTEM                   [...***...]   US Dollar         [...***...]           [...***...]

                                              PLACE OF INSPECTION AND ACCEPTANCE: Destination

     SHIPMENT ASO                                                                    QUANTITY
     #1  PO Box 20636                                                                --------
         Atlanta, GA 30320                                                        [...***...]

         W.901-.0--.---.270---.8030--.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

*** LINE 2 WAS CANCELLED ***

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:                         DTFA0695C30063                         DTFA0695F31577                          3
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
3  This procurement will obligate funds to          [...***...]     Each             [...***...]          [...***...]
   the task order DTFA06-95-F-31577 development
   and deployment of the Regional Information
   System (REGIS) and incremental funding of
   [...***...]

               REQUISITION NO. 9900694       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     #1  800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                     [...***...]

         W.901-.0--.---.270---.8030--.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Functional Components of Regional Information System (REGIS
Development) is hereby modified to include additional funding in the amount of [...***...].

There are not other changes for Modification No. 0013.

Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Functional Components of Regional Information System (REGIS
Development) is hereby extends the period of performance.

Performance time for this task is extended through August 9, 20001.

                         End of Modification No. 0014.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0002                          08-16-96              671338106
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.08
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                         DTFA06-95-F-31577
                                                                                 X  ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       09-11-95
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/682A/0/G531/4A0700/2596/98750116                                                                    [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(X) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
 X     FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    / / is not,    /X/ is    required to sign this document and
   return  2  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1  Task Order DTFA06-95-F-31577, Develop Proof of Concept Functional
         Component of Regional Information System (REGIS Development) is modified
         to include incremental funding in the amount of [...***...].

                               *** End of Modifiction 0002 ***

                                      THIS AWARD IS INCREASED BY: [...***...]
                                                            FROM: [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
     Sherrie R. Manuel, Contracts Representative                MARJORIE M. BROOKS
                                                                404-305-5778
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

     /s/ Sherrie R. Manuel                   27 AUG 96     BY /s/ Marjorie M. Brooks                      11/25/96
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                                                                          PAGE 2

     0002                08-16-96                       DTFA06-95-F-31577

                                                              TO: [...***...]

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 24-FEB-1999                                                    DFTA069F31577                           1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Emanuel Green, Jr.
DATE SIGNED:                                                        Emanuel Green, Jr.             DATE SIGNED: 2/24/99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
1  DEVELOPMENT OF THE REGIS SYSTEM                  [...***...]    US Dollar        [...***...]           [...***...]

                                              PLACE OF INSPECTION AND ACCEPTANCE: Destination

     SHIPMENT ASO                                                                    QUANTITY
     #1  PO Box 20636                                                                --------
         Atlanta, GA 30320                                                        [...***...]

         W.901-.0--.---.270---.8030--.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 11-SEP-1995                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 24-FEB-1999                                                    DTFA069F31577                           1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
2  This procurement will obligate funds to           [...***...]    Each             [...***...]           [...***...]
   the task order DTFA06-95-F-31577 development
   and deployment of the Regional Information
   System (REGIS) and incremental funding of
   [...***...]

               REQUISITION NO. 9900694       PRI CODE: 5-4

     SHIPMENT AWA                                                                   QUANTITY
     #1  800 Independence Ave, SW                                                   --------
         Washington, DC 20951                                                     [...***...]

         W.901-.0--.---.270---.8030--.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

NOTE TO VENDOR
Task Order Number DTFA06-95-F-31577, to Develop Proof of Concept Funtional Component of Regional Information System (REGIS
Development) is hereby modified to include additional incremental funding in the amount of [...***...]

There are not other changes for Modification No. 0013.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                       * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                 Page       of       Pages
                        ORDER FOR SUPPLIES OR SERVICES                                                   1       1
----------------------------------------------------------------------------------------------------------------------------------
       IMPORTANT: Mark all packages and papers with contract and/or order numbers.
----------------------------------------------------------------------------------------------------------------------------------
  1. Date of Order               2. Contract No. (IF ANY)               3. Order No.            4. Requisition/Reference No.
09/01/98                            DTFA06-95-C-30063                      DTFA06-98-F-31222       871338083
----------------------------------------------------------------------------------------------------------------------------------
  5. Issuing Office (ADDRESS CORRESPONDENCE TO)   6.  Ship To: (COSIGNEES AND ADDRESS, ZIP CODE)
DOT/FEDERAL AVIATION ADMINISTRATION                   DOT/FEDERAL AVIATION ADMINISTRA
ACQUISITION & REAL ESTATE BRAN, AS055A                M/F: WILLIAM P. FORD 202-267-8970
P.O. BOX 20636                                        FEDERAL AVIATION ADMINISTRATION
ATLANTA              , GA                             800 INDEPENDENCE AVE., S.W.,
                                                      WASHINGTON, DC
               30320-0000
                                                                       20591
----------------------------------------------------------------------------------------------------------------------------------
  7. To: Contractor (NAME, ADDRESS AND ZIP CODE)                8. Type of Order
                                                                / / A. PURCHASE --Reference your _______________
                       TITAN CORPORATION
                       TITAN SYSTEMS DIVISION                  -------------------------------------------------------------------
                       1900 CAMPUS COMMONS DRIVE, STE 400      Please furnish the following on the terms and
                       RESTON                    VA 22091-     conditions specified on both sides of this order
                                                               and on the attached sheets, if any, including
                                                               delivery as indicated.  This purchase is
                                                               negotiated under authority of:
                                                               -------------------------------------------------------------------
                                                               /X/ B. DELIVERY --Except for billing instructions
                                                               on the reverse, this delivery order is subject to
                                                               instructions contained on this side only of this
                                                               form and is issued subject to the terms and
                                                               conditions of the above-numbered contract.
----------------------------------------------------------------------------------------------------------------------------------
  9. Accounting and Appropriation Data       10. Requisitioning Office
W/801/0/2250/151/2596/                                          AS052
OBLIG TOTAL            [...***...]           -------------------------------------------------------------------------------------
2211 CHARGES                  .00            11. Business Classification (CHECK APPROPRIATE BOX(ES))
                                              / / SMALL   /XX/ OTHER THAN SMALL   / /DISADVANTAGED   / / WOMAN OWNED
----------------------------------------------------------------------------------------------------------------------------------
  12. F.O.B. Point                       14. Government B/L No.         15. Deliver to F.O.B. Point      16. Discount Terms
DESTINATION                                                                 On or Before (DATE)
----------------------------------------
  13. Place of Inspection and Acceptance                                          08/01/98
DESTINATION                                                                     THRU 09/30/98                        [...***...]
----------------------------------------------------------------------------------------------------------------------------------
                                    17. Schedule (SEE REVERSE FOR REJECTIONS)
----------------------------------------------------------------------------------------------------------------------------------
Item                                              Quantity                        Unit                          Quantity
 No.                Supplies or Services          Ordered          Unit          Price           Amount         Accepted
 (A)                          (B)                   (C)            (D)            (E)             (F)              (G)
----------------------------------------------------------------------------------------------------------------------------------

   **  NOTE TO FAA ACCOUNTING:  REMITTANCE ADDRESS SAME AS BLOCK 7 ABOVE **

       PR REF: 871338083 -001
  1  SERVICES                              [...***...]             EA            [...***...]                  [...***...]
       DEVELOP AN INTER-ACTIVE WEB PAGE
       SERVER AND BEGIN DEVELOPMENT OF AN
       AIR TRAFFIC PERFROMANCE TOOL SET IN
       ACCORDANCE WITH THE ATTACHED STATEMENT
       OF WORK.

----------------------------------------------------------------------------------------------------------------------------------
                    18. Shipping Point        19. Gross Shipping Weight       20. Invoice No.                    17(H). To
   SEE BILLING                                                                                                     (CONT.
  INSTRUCTIONS                                                                                                     PAGES)
       ON           --------------------------------------------------------------------------------------------------------------
    REVERSE         21. Mail Invoice to: (INCLUDE ZIP CODE)         DOT/FAA, ASO-22B                             17(I).
                      (404) 305-7060                         P.O. Box 45719                                        GRAND
                                                             Atlanta, Georgia       30320-        [...***...]      TOTAL
----------------------------------------------------------------------------------------------------------------------------------
 17. UNITED STATES OF AMERICA                                                 23. NAME (TYPED)  (404) 305-5987
        BY (SIGNATURE)           /s/ Donna M. Bonner                              DONNA M. BONNER
                                                                                       Title: Contracting/Ordering Officer
----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                               STATEMENT OF WORK

                     INTERACTIVE WEB PAGES FOR AIR TRAFFIC

OVERALL DESCRIPTION

The contractor shall provide a set of interactive web-based applications to
the Air Traffic community to support administrative and programmatic business
functions under the auspices of the Air Traffic Information Resources
Management Program.

Air Traffic has asserted that information is a corporate asset. The Air
Traffic Information Resources Management Program office is committed to
providing a set of tools to the AT user community to enable the creation,
dissemination and sharing of relevant information. The interactive tools to
be developed by the contractor shall provide the capability for enhanced
information distribution via the FAA's Intranet environment. This effort will
result in facilitating work and decision making processes to the Air Traffic
workforce in a timely manner. All work is required to be performed by the
contractor by September 30, 1998.

The following interactive web-based products and analytical functions will be
produced by the contractor:

PAY RECLASSIFICATION

The Pay Reclassification Web Site will provide a basic capability for the AT
Directorate that includes information about the Pay Reclassification,
facility base and conversion pay tables, and an individual pay calculator.

The web site will:
Provide timely information in an easily accessible form to all users on the FAA
       Intranet regarding pay reclassification by displaying documents,
       policies, and memorandum dealing with the pay reclassification and
       provide links to other websites that contain information relating to the
       pay reclassification.
Provide the foundation for calculating facility conversion pay by displaying
       base pay, pay conversion, pay band equivalents, and facility summary
       tables for each facility. There are currently over 300 facilities.
Provide the foundation for calculating individual conversion pay by presenting a
       wizard-type format section on the web for calculating an individual's
       conversion pay. The wizard will guide the user through various fields and
       then calculate their specific conversion pay. In order to move away from
       the old system of steps, the wizard will prompt the user to enter the
       percentage above the base.

LABOR RELATIONS

The web site will address the following major Labor Management Relations'
(LMR) business functions:

-      Contract negotiation history
-      Contract Annotations
-      Partnerships
-      Memorandums of Understanding
-      Security

The interactive web site for the Labor Management Relations Division,
ATX-500, will:

<PAGE>

       -      Provide timely information in an easily accessible form to
              Headquarters and Regional personnel regarding various
              Labor/Management Relations (LMR) topics;
       -      Provide the foundation for a larger research capability for the
              entire FAA LMR function:
       -      Provide the foundation for a collaborative capability for the
              entire FAA LMR function.
These requirements define the initial capability needed by ATX-500 to begin
improving the availability of information and the work processes associated
with the various LMR activities conducted in the National Headquarters and
the Regions.

AIR TRAFFIC ORGANIZATIONAL WEB-SITES

The contractor shall develop web-sites to support other Air Traffic
organizations located in headquarters. These organizational entities are:

Air Traffic Service-AAT-1
AT Airspace Management-ATA
AT Operations - ATO

The web page will be developed based on the AT Resource Management web design
(ATX). The ATX web site provides the capability for the ATX directorate that
includes information about significant activities, employees, quarterly
program review items and regional locator functionality. The site also
provides each Division with a divisional home page from which extensions can
be built.

PERSONNEL LOCATOR/PHONE BOOK

The entry of personnel phone book information will be integrated into the Air
Traffic Web site infrastructure to facilitate the decentralized, yet
controlled, entry of the data. The resulting database will be used as the
foundation for the Air Traffic Personnel Locator to be implemented across
multiple web sites.

This task will:
Determine the requirements for a Personnel Locator database, to include all data
       items required for the FAA Automated Phone Book.
Determine the requirements for the phone book data entry and reporting functions
       to be hosted on a web site.
Determine the Air Traffic web site to best host the phone book data entry and
       reporting functions.
Design and implement the phone book data entry and reporting functions.

BUSINESS PROCESS REENGINEERING FOR REGIONAL AIR TRAFFIC QUARTERLY PROGRAM REVIEW

The contractor shall conduct a business process reengineering effort to
assess and validate the Quarterly program review process at each regional Air
Traffic organization. The analysis will result in providing to the FAA a set
of recommended approaches toward standardizing the process throughout all
regional offices through web-based technology.

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  1
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 26-OCT-1999             DTFA0695C30063                         DTFA0698F31222                               6
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / /is, / / is not required to sign this document and return __ copies to the issuing office.   OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Emanuel Green, Jr.
                                                                       -----------------------
DATE SIGNED:                                                        Emanuel Green Jr              DATE SIGNED: 10/26/99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
19 Modification of TITAN Contract (First two         [...***...]    Each             [...***...]          [...***...]
   quarters) (subject to availability of funds)

   Non-ISO 9000                             PLACE OF INSPECTION AND ACCEPTANCE: Destination

         REQUISITION NO. 0000234               PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY             DELIVER BY
     # 1  800 Independence Ave, SW                                                   --------             ----------
          Washington, DC 20951                                                    [...***...]            01-OCT-1999

     MARK FOR:  Evelyn Berrios, 202-267-9799
         W.001-.0--.---.151---.2250---.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31222 TO DEVELOP AN INTER-ACTIVE WEB PAGE SERVER AND BEGIN DEVELOPMENT OF AIR TRAFFIC
PERFROMANCE TOOL SET IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

a. Add Incremental Funding in the amount of [...***...].
b. There are no other changes for Modification No. 0005.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:                         DTFA0695C30063                         DTFA0698F31222                               5
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT:   Destination         SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / /is, / / is not required to sign this document and return __ copies to the issuing office.   OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Donna M Bonner
                                                                       ---------------------
DATE SIGNED:                                                        Donna M Bonner              DATE SIGNED: 09/30/99
----------------------------------------------------------------------------------------------------------------------------------

NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31222 TO DEVELOP AN INTER-ACTIVE WEB PAGE SERVER AND BEGIN DEVELOPMENT OF AIR TRAFFIC
PERFORMANCE TOOL SET IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

a. Add Incremental Funding in the amount of [...***...].

b. Increase the order from [...***...] to read [...***...] an increase of [...***...].

c. Extend the period of performance to September 20, 2001.

d. There are no other changes for Modification No. 0001.

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
18 Database - Operational Data Store Development and  [...***...]   Each             [...***...]          [...***...]
   Integration with CRU-X Software

         REQUISITION NO. 9901817               PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY             DELIVER BY
     # 1  800 Independence Ave, SW                                                   --------             ----------
          Washington, DC 20951                                                      [...***...]           27-SEP-1999

         W.901-.0--.---.151---.2250---.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

----------------------------------------------------------------------------------------------------------------------------------
                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:                         DTFA0695C30063                         DTFA0698F31222                               5
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

NOTE TO VENDOR

RE: TASK ORDER NUMBER DTFA06-98-F-31222 TO DEVELOP AN INTER-ACTIVE WEB PAGE SERVER AND BEGIN DEVELOPMENT OF AIR TRAFFIC
PERFROMANCE TOOL SET IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

a. Add Incremental Funding in the amount of [...***...]

b. There are no other changes for Modification No. 0004.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  1
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:                         DTFA0695C30063                         DTFA0698F31222                               4
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT:   Destination         SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / /is, / / is not required to sign this document and return __ copies to the issuing office.   OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Donna M Bonner
                                                                       ----------------------
DATE SIGNED:                                                        Donna M Bonner              DATE SIGNED: 09/30/99
----------------------------------------------------------------------------------------------------------------------------------

NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31222 TO DEVELOP AN INTER-ACTIVE WEB PAGE SERVER AND BEGIN DEVELOPMENT OF AIR TRAFFIC
PERFROMANCE TOOL SET IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

a. Add Incremental Funding in the amount of [...***...].

b. Increase the order from [...***...] to read [...***...] an increase of [...***...].

c. Extend the period of performance to September 20, 2001.

d. There are no other changes for Modification No. 0001.

*** LINE 15 WAS CANCELLED ***
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
15 Modification of TITAN Contract (First two quarters) [...***...]  Each             [...***...]          [...***...]
   (Subject to availability of funds)

     SHIPMENT AWA                                                                    QUANTITY             DELIVER BY
     # 1  800 Independence Ave, SW                                                   --------             ----------
          Washington, DC 20951                                                      [...***...]           01-OCT-1999

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:                         DTFA0695C30063                         DTFA0698F31222                               3
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / /is, / / is not required to sign this document and return __ copies to the issuing office.   OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Emanuel Green, Jr.
                                                                       ---------------------------
DATE SIGNED:                                                                                        DATE SIGNED: 09/28/99
----------------------------------------------------------------------------------------------------------------------------------
NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31222 TO DEVELOP AN INTER-ACTIVE WEB PAGE SERVER AND BEGIN DEVELOPMENT OF AIR TRAFFIC
PERFROMANCE TOOL SET IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

a. Add Incremental Funding in the amount of [...***...].

b. Increase the order from [...***...] to read [...***...] an increase of [...***...].

c. Extend the period of performance to September 20, 2001.

d. There are no other changes for Modification No. 0001.

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
15 Modification of TITAN Contract (First two         [...***...]    Each             [...***...]           [...***...]
   quarters) (Subject to availability of funds)

         REQUISITION NO. 0000234               PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY             DELIVER BY
     # 1  800 Independence Ave, SW                                                   --------             ----------
          Washington, DC 20951                                                      [...***...]           01-OCT-1999

         W.001-.0--.---.151---.2250---.252B.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]
----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION:                         DTFA0695C30063                         DTFA0698F31222                               3
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
16 Modification of TITAN Contract                    [...***...]    Each             [...***...]           [...***...]

         REQUISITION NO. 9901473               PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY             DELIVER BY
     # 1  800 Independence Ave, SW                                                   --------             ----------
          Washington, DC 20951                                                     [...***...]            24-AUG-1999

         W.901-.0--.---.151---.2250---.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
17 Modification of TITAN Contract                    [...***...]    Each             [...***...]           [...***...]

         REQUISITION NO. 9901473               PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY             DELIVER BY
     # 1  800 Independence Ave, SW                                                   --------             ----------
          Washington, DC 20951                                                     [...***...]            24-AUG-1999

         W.082A.0--.---.2A0400.2020--.2596.480100.-.--.-.98750618-
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31222 TO DEVELOP AN INTER-ACTIVE WEB PAGE SERVER AND BEGIN DEVELOPMENT OF AIR TRAFFIC
PERFROMANCE TOOL SET IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

a. Add Incremental Funding in the amount of [...***...].

b. Increase the order from [...***...] to [...***...] an increase of [...***...].

c. There are no other changes for Modification No. 0003.

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  6
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 25-MAY-1999             DTFA0695C30063                         DTFA0698F31222                               2
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Emanuel Green, Jr.
                                                                    --------------------------
DATE SIGNED:                                                        Emanuel Green Jr.             DATE SIGNED: 5/25/99
----------------------------------------------------------------------------------------------------------------------------------
NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31222 TO DEVELOP AN INTER-ACTIVE WEB PAGE SERVER AND BEGIN DEVELOPMENT OF AIR TRAFFIC
PERFROMANCE TOOL SET IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

a. Add Incremental Funding in the amount of [...***...].

b. Increase the order from [...***...] to read [...***...] an increase of [...***...].

c. Extend the period of performance to September 20, 2001.

d. There are no other changes for Modification No. 0001.

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
1  Inter Active Web Page                            [...***...]   US dollar         [...***...]           [...***...]

                                            PLACE OF INSPECTION AND ACCEPTANCE: Destination

     SHIPMENT ASO                                                                    QUANTITY
     #1  PO Box 20636                                                                --------
         Atlanta, GA 30320                                                        [...***...]

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                          * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  6
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 25-MAY-1999             DTFA0695C30063                         DTFA0698F31222                               2
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
2  For initial design and development of the        [...***...]   US dollar         [...***...]           [...***...]
   Corporate Air Traffic Management Information
   System (CATMIS), next phase of development of
   the Air Traffic Executive Information System
   (ATEIS) Financial Modules and work on integrating
   levels.

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900581       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]    12-JAN-1999

     MARK FOR: Laurence L. Silvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
3  Phase I development of Supplier online tools for   [...***...]  Each             [...***...]           [...***...]
   field access to operational and performance metrics.

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900580       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO BOX 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

     MARK FOR: Laurence L. Silvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
4  AT Web                                           [...***...]     Each            [...***...]           [...***...]

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

     MARK FOR: Laurence L. Silvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     3  of  6
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 25-MAY-1999             DTFA0695C30063                         DTFA0698F31222                               2
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
5  AR IRM Detailed Plan                              [...***...]   Each              [...***...]          [...***...]

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]    12-JAN-1999

     MARK FOR: Laurence L. Silvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
6 PBO Web Page                                       [...***...]    Each            [...***...]           [...***...]
   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

     MARK FOR: Laurence L. Silvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                     [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
7  CATTS                                             [...***...]   Each             [...***...]           [...***...]

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

     MARK FOR: Laurence L. Silvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

* CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     4  of  6
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 25-MAY-1999             DTFA0695C30063                         DTFA0698F31222                               2
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
8  AT EIS                                            [...***...]    Each              [...***...]         [...***...]

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

     MARK FOR: Laurence L. Silvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
9 AT EIS                                             [...***...]     Each           [...***...]           [...***...]

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

     MARK FOR: Laurence L. Silvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
10 CAS into CATMIS                                   [...***...]    Each            [...***...]           [...***...]

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                        [...***...]    12-JAN-1999

     MARK FOR: Laurence L. Silvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

* CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     5  of  6
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 25-MAY-1999             DTFA0695C30063                         DTFA0698F31222                               2
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
11  AT Web                                           [...***...]    Each             [...***...]          [...***...]

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

     MARK FOR: Laurence L. SIlvious
         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
12 To develop and implement catastrophic back-up     [...***...]    Each            [...***...]           [...***...]
   capability for the AT web-based information systems.

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900908       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                        [...***...]    22-MAR-1999

     MARK FOR: Evelyn Berrios
         W.982A.0--.---.2A0300.2020--.2596.480100.-.--.-.98750618-
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
13 To develop and implement catastrophic back-up     [...***...]   Each             [...***...]           [...***...]
   capability for the AT web-based application.

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9901049       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]    21-APR-1999

     MARK FOR: Evelyn Berrios, ATX-400, (202) 267-9799
         W.182A.0--.---.2A0400.2020--.2596.480100.-.--.-.98750618-
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                               * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     6  of  6
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 25-MAY-1999             DTFA0695C30063                         DTFA0698F31222                               2
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
14  To implement design, development, and testing    [...***...]    Each            [...***...]           [...***...]
    of MWE module for ATS EIS.

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9901010       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                        [...***...]    05-APR-1999

     MARK FOR: Evelyn Berrios, ATX-400
         W.901-.0--.---.15X---.9Z10--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]
NOTE TO VENDOR

RE: TASK ORDER NUMBER DTFA06-98-F-31222 TO DEVELOP AN INTER-ACTIVE WEB PAGE SERVER AND BEGIN DEVELOPMENT AIR TRAFFIC PERFROMANCE
TOOL SET IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

a. Add Incremental Funding in the amount of [...***...].

b. Increase the order from [...***...] to read [...***...] an increase of [...***...].

c. There are no other changes for Modification No. 0002.
</TABLE>

                          * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  5
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 11-FEB-1999                                                    DTFA0698F31222                          1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.            OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD:   [...***...]
Donna M Bonner
404-305-5987                                                                              FROM:   [...***...]

                                                                           AWARD IS CHANGED BY:   [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Emanuel Green, Jr.
DATE SIGNED:                                                        Emanuel Green Jr.               DATE SIGNED: 2/12/99
----------------------------------------------------------------------------------------------------------------------------------
NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31222 TO DEVELOP AN INTER-ACTIVE WEB PAGE SERVER AND BEGIN DEVELOPMENT OF AIR TRAFFIC
PERFROMANCE TOOL SET IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

a.  Add Incremental Funding in the amount of [...***...].

b.  Increase the order from [...***...] to read [...***...] an increase of [...***...].

c.  Extend the period of performance to September 20, 2001.

d.  There are no other changes for Modification No. 0001.

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
1  Inter Active Web Page                            [...***...]    US Dollar        [...***...]           [...***...]

                                           PLACE OF INSPECTION AND ACCEPTANCE: Destination

     SHIPMENT ASO                                                                    QUANTITY
     # 1 PO Box 20636                                                                --------
         Atlanta, GA 30320                                                        [...***...]

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

</TABLE>

                             * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     3  of  5
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 11-FEB-1999                                                    DTFA0698F31222                          1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.            OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
5   AR IRM Detailed Plan                             [...***...]    Each             [...***...]          [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                        [...***...]          12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
6   PBO Web Page                                     [...***...]   Each             [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                         [...***...]          12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
7   CATTS                                            [...***...]    Each             [...***...]          [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                        [...***...]          12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]
</TABLE>

                          * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     4  of  5
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 11-FEB-1999                                                    DTFA0698F31222                          1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.            OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
8   AT EIS                                           [...***...]    Each             [...***...]          [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                         [...***...]          12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
9   AT EIS                                          [...***...]    Each             [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     #1  PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                          [...***...]         12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
10   CAS into CATMIS                                 [...***...]   Each             [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                         [...***...]         12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                [...***...]

</TABLE>

<PAGE>

                            * CONFIDENTIAL TREATMENT REQUESTED

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     5  of  5
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 01-SEP-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 11-FEB-1999                                                    DTFA0698F31222                          1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.            OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
11  AT Web                                           [...***...]    Each            [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                         [...***...]         12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT                                                       1       2
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0004                          08-31-98              871338089
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.D3
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-98-F-31150
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       04-08-98
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/801/0/8030/270/2596/                                                                                [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(X) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)
 X     CHANGES - FIXED PRICE
---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1. RE: TASK ORDER NUMBER DTFA06-98-F-31150 TO DEVELOP AIR TRAFFIC SERVICE INFORMATION
         MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

         a.  Add Incremental Funding in the amount of [...***...].

         b.  Increase the order from [...***...] to read [...***...] an
         increase of [...***...].

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                EMANUEL GREEN, JR.        3
                                                                404-305-5776
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Emanuel Green, Jr.                      8/31/98
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

                                                                          PAGE 2

     0004                08-31-98                       DTFA06-98-F-31150

c. There are no other changes for Modification No. 0004.

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0003                          08-28-98              871338082
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, BRAN, ASO55A
P.O. BOX 20636

ATLANTA                 ,   GA 30320-0000
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                 X       DTFA06-98-F-31150
                                                                                    ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       04-08-98
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    SEE ATTACHED
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(X) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)
 X     CHANGES FIXED PRICE
---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1. TASK ORDER NUMBER DTFA06-98-F-31150 TO DEVELOP AIR TRAFFIC SERVICE INFORMATION
         MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO INCREMENTAL SERVICES.

         a.  Add Incremental Services in support of AF CIMS per attached statement of work
             in the amount of [...***...].

         b.  Add Maintenance at a rate of [...***...] per month and extended amount to read [...***...].

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                DONNA M. BONNER
                                                                404-305-5987
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Donna M. Bonner                         Aug 28, 1998
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

                                                                          PAGE 2

     0003                08-28-98                       DTFA06-98-F-31150

c.     Add Incremental Funding to CIMS Task Order in the amount of [...***...].

d.     Increase the order from [...***...] to read [...***...] and increase
of [...***...].

e.     There are no other changes for Modification No.  0003.

                                    THIS AWARD IS INCREASED BY:    [...***...]
                                                          FROM:    [...***...]
                                                            TO:    [...***...]

***************************** ACCOUNTING DETAILS *******************************

PR NUMBER       RGN APPR LIM    C/C     PGM      OBJ     PROJECT #

871338082        W   801  0     8E30    270      2523
OBLG TOTAL          [...***...] TRAN CHG                 .00 2211 CHG        .00

871338082        W   801  0     8E30    270      2538
OBLG TOTAL          [...***...] TRAN CHG                 .00 2211 CHG        .00

871338088        W   801  0     8030    270      2596
OBLG TOTAL          [...***...] TRAN CHG                 .00 2211 CHG        .00

                         *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

CHANGE MODIFICATION NUMBER 95-C-30063
CONTRACT DTFA06-95-C-30063

1.0    SCOPE

1.1    IDENTIFICATION

THIS DOCUMENT PROVIDES A DESCRIPTION OF THE ACTIVITIES TO BE PERFORMED DURING
REACTIVATION AND MONTHLY SUPPORT OF THE DATA FLOWS FOR THE COST AND PERFORMANCE
MANAGEMENT SOFTWARE (CPMS) SOFTWARE, AND THE INSTALLATION OF CPMS ON SEVERAL
SYSTEMS.

1.2    SYSTEM OVERVIEW

THE CPMS SOFTWARE CORRELATES DATA FROM SEVERAL FAA LEGACY SYSTEMS TO FACILITATE
THE ANALYSIS OF VARIOUS PARAMETERS IN ORDER TO ASCERTAIN FLUCTUATIONS OR TRENDS
IN CERTAIN REPORTING CRITERIA.  IT CONSISTS OF NATIONAL AIR SPACE PERFORMANCE
REPORTING SYSTEM (NAPRS) PERFORMANCE DATA AS WELL AS PERSONNEL, COMPENSATION,
AND BENEFITS (PC&B), OR STAFFING COST OBLIGATIONS DATA, LOGISTICS-RELATED COSTS,
LEASED TELECOMMUNICATIONS COSTS, AND OTHER COSTS.

1.3    DOCUMENT OVERVIEW

THIS STATEMENT OF WORK APPLIES TO ALL ACTIVITIES RELATED TO THE MAINTENANCE OF
THE CPMS DATA FLOWS.  IN ADDITION, IT OUTLINES THE DELIVERABLES AND ASSOCIATED
MILESTONES TO BE USED TO MONITOR THE PROGRESS OF THIS CONTRACT EFFORT.

2.0    TASKS

2.1    RE-ACTIVATE CPMS

RE-ESTABLISH CONNECTIVITY BETWEEN LIS AND TIMS AND THE NATIONAL DATA WAREHOUSE.
THIS INCLUDES UPDATING ALL THE ASSOCIATED DATA AND TABLES AND RECONCILING THE
NEW DATA, AND MAKING ANY CHANGES REQUIRED IN CPMS TO PROCESS THE NEW DATA.

                                      1

<PAGE>

2.2    PERFORM MONTHLY CPMS MAINTENANCE

COORDINATE AND MONITOR THE MONTHLY MANUAL FEEDS AND ENSURE THAT THE NEW MONTHLY
DATA IS RECONCILED.

3.0    DELIVERABLES

THE CONTRACTOR SHALL DELIVER THE PRODUCTS OF THIS STATEMENT OF WORK TO THE
GOVERNMENT IN ACCORDANCE WITH THE SCHEDULE DESCRIBED BELOW.

--------------------------------------------------------------------------------
<TABLE>
<CAPTION>
 ITEM       TASK         PRODUCT                           SCHEDULE
--------------------------------------------------------------------------------
<S>         <C>         <C>                               <C>
 1          1            RE-ACTIVATE CPMS                  INITIATE UPON AWARD
--------------------------------------------------------------------------------
 2          1            PERFORM MONTHLY MAINTENANCE       MONTHLY
--------------------------------------------------------------------------------
</TABLE>

4.0    PERIOD OF PERFORMANCE

THE PERIOD OF PERFORMANCE IS FROM AUGUST 17, 1998 THROUGH DECEMBER 30, 1998.

                                       2

<PAGE>

                  CPMS REACTIVATION AND MONTHLY SUPPORT PROPOSAL

--------------------------------------------------------------------------------
<TABLE>
<CAPTION>
 SOW PART      TITLE                                    COST
--------------------------------------------------------------------------------
<S>           <C>                                      <C>
 2.1           REACTIVATE CPMS                        [...***...]
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
 2.2           MONTHLY MAINTENANCE FOR CPMS           [...***...]
--------------------------------------------------------------------------------
</TABLE>

                                       3

                     * CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT                                                       1       1
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       0002                          06-04-98              871338055
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, BRAN ASO55A
P.O. BOX 20636

ATLANTA               , GA 30320-0000
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                         DTFA06-98-F-31150
                                                                                 X  ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       04-08-98
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/801/0/2250/151/2596/                                                                                [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(X) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.
 X
---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1. TASK ORDER NUMBER DTFA06-98-F-31150, TO DEVELOP AIR TRAFFIC SERVICE INFORMATION
         MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO INCLUDE ADDITIONAL INCREMENTAL FUNDING
         IN THE AMOUNT OF [...***...].

                                           THIS AWARD IS INCREASED BY:      [...***...]
                                                                 FROM:      [...***...]
                                                                   TO:      [...***...]

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                DONNA M. BONNER
                                                                404-305-5987
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Donna M. Bonner                    June 4, 1998
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
<TABLE>
<S><C>
---------------------------------------------------------------------------------------------------------------------
                                                                               1. CONTRACT ID CODE    PAGE   OF  PAGE
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT                                                       1       1
---------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO.     3. EFFECTIVE DATE   4. REQUISITION/PURCHASE REQ. NO.  5. PROJECT NO. (IF APPLIABLE)
       TO-0001                       04-10-98              871338049
---------------------------------------------------------------------------------------------------------------------
6. ISSUED BY                 CODE                     7. ADMINISTERED BY (IF OTHER THAN ITEM 6)       CODE
                                 -------------------                                                      -----------
DOT/FEDERAL AVIATION ADMINISTRATION
ACQUISITION & REAL ESTATE, TEA, ASO55.D3
1701 COLUMBIA AVENUE
COLLEGE PARK, GEORGIA
                                 30337-2714
---------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE, AND ZIP CODE)   (x) 9A. AMENDMENT OF SOLICITATION NO.

                       TITAN CORPORATION                                            ---------------------------------
                       TITAN SYSTEMS DIVISION                                       9B. DATED (SEE ITEM 11)
                       1900 CAMPUS COMMONS DRIVE, STE 400
                       RESTON                   VA 22091-                      --------------------------------------
                                                                                    10A. MODIFICATION OF CONTRACT/
                                                                                         ORDER NO.
                                                                                         DTFA06-98-F-31150
                                                                                 X  ---------------------------------
----------------------------------------------------------------------------------- 10B. DATED (SEE ITEM 13)
CODE                                                 FACILITY CODE                       04-08-98
---------------------------------------------------------------------------------------------------------------------
                               11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
---------------------------------------------------------------------------------------------------------------------
   The above numbered solicitation is amended as set forth in Item 14. The
hour and date specified for receipt of Offers  / / is extended,   / / is not
extended. Offers must acknowledge receipt of this amendment prior to the hour
and date specified in the solicitation or as amended, by one of the following
methods: (a) By completing Items 8 and 15, and returning _______________
copies of the amendment; (b) By acknowledging receipt of this amendment on
each copy of the offer submitted; or (c) By separate letter or telegram which
includes a reference to the solicitation and amendment numbers. FAILURE OF
YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT
OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF
YOUR OFFER. If by virtue of this amendment you desire to change an offer
already submitted, such change may be made by telegram or letter, provided
each telegram or letter makes reference to the solicitation and this
amendment, and is received prior to the opening hour and date specified.

---------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (IF REQUIRED)
    W/801/0/8E30/270/2523/                                                                                [...***...]
---------------------------------------------------------------------------------------------------------------------
                  13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
                      IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
---------------------------------------------------------------------------------------------------------------------
(X) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (SPECIFY AUTHORITY) THE
---    CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.
 X
---------------------------------------------------------------------------------------------------------------------
    B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE
       CHANGES (SUCH AS CHANGES IN PAYING OFFICE, APPROPRIATION DATE, ETC.) SET
       FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(b)

---------------------------------------------------------------------------------------------------------------------
    C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

---------------------------------------------------------------------------------------------------------------------
    D. OTHER (SPECIFY TYPE OF MODIFICATION AND AUTHORITY)

---------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor    /X/ is not,    / / is    required to sign this document and
   return  0  copies to the issuing office.
          ---
---------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (ORGANIZED BY UCF SECTION HEADINGS, INCLUDING
    SOLICITATION/CONTRACTS SUBJECT MATTER WHERE FEASIBLE.)

      1. TASK ORDER NUMBER DTFA06-98-F-31150, TO DEVELOP AIR TRAFFIC SERVICE INFORMATION
         MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO INCLUDE ADDITIONAL INCREMENTAL
         FUNDING IN THE AMOUNT OF [...***...].

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore
changed, remains unchanged and in full force and effect.
---------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (TYPE OR PRINT)              16A. NAME AND TITLE OF CONTRACTING OFFICER (TYPE OR PRINT)
                                                                EMANUEL GREEN, JR.        3
                                                                404-305-5776
---------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR                 15C. DATE SIGNED   16B. UNITED STATES OF AMERICA             16C. DATE SIGNED

                                                           BY /s/ Emanuel Green, Jr.                      4/10/98
----------------------------------------                     ----------------------------------------
(SIGNATURE OF PERSON AUTHORIZED TO SIGN)                     (SIGNATURE OF CONTRACTING OFFICER)
---------------------------------------------------------------------------------------------------------------------
                                                                                        STANDARD FORM 30 (REV. 10-83)
</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
                                                                                                 Page       of       Pages
                        ORDER FOR SUPPLIES OR SERVICES                                                   1       2
----------------------------------------------------------------------------------------------------------------------------------
       IMPORTANT: Mark all packages and papers with contract and/or order numbers.
----------------------------------------------------------------------------------------------------------------------------------
  1. Date of Order               2. Contract No. (IF ANY)               3. Order No.            4. Requisition/Reference No.
04/08/98                            DTFA06-95-C-30063                      DTFA06-98-F-31150       871338037
----------------------------------------------------------------------------------------------------------------------------------
  5. Issuing Office (ADDRESS CORRESPONDENCE TO)   6.  Ship To: (COSIGNEES AND ADDRESS, ZIP CODE)
DOT/FEDERAL AVIATION ADMINISTRATION                   DOT/FEDERAL AVIATION ADMINISTRA
ACQUISITION & REAL ESTATE, TEA, AS055.03              M/F: WILLIAM P. FORD 202-267-8970
1701 COLUMBIA AVENUE                                  FEDERAL AVIATION ADMINISTRATION
COLLEGE PARK, GEORGIA                                 800 INDEPENDENCE AVE., S.W.,
                                                      WASHINGTON, DC,
               30337-2714
                                                                       20591
----------------------------------------------------------------------------------------------------------------------------------
  7. To: Contractor (NAME, ADDRESS AND ZIP CODE)                8. Type of Order
                                                                / / A. PURCHASE --Reference your _______________
                       TITAN CORPORATION                       PEGGY OWENS
                       TITAN SYSTEMS DIVISION                  -------------------------------------------------------------------
                       1900 CAMPUS COMMONS DRIVE, STE 400      Please furnish the following on the terms and
                       RESTON                    VA 22091-     conditions specified on both sides of this order
                                                               and on the attached sheets, if any, including
                                                               delivery as indicated.  This purchase is
                                                               negotiated under authority of:
                                                               -------------------------------------------------------------------
                                                               /X/ B. DELIVERY --Except for billing instructions
                                                               on the reverse, this delivery order is subject to
                                                               instructions contained on this side only of this
                                                               form and is issued subject to the terms and
                                                               conditions of the above-numbered contract.
----------------------------------------------------------------------------------------------------------------------------------
  9. Accounting and Appropriation Data       10. Requisitioning Office
         SEE ATTACHED                                         AS052
                                             -------------------------------------------------------------------------------------
                              .00            11. Business Classification (CHECK APPROPRIATE BOX(ES))
                                              / / SMALL   /XX/ OTHER THAN SMALL   / /DISADVANTAGED   / / WOMAN OWNED
----------------------------------------------------------------------------------------------------------------------------------
  12. F.O.B. Point                       14. Government B/L No.         15. Deliver to F.O.B. Point      16. Discount Terms
DESTINATION                                                                 On or Before (DATE)
----------------------------------------
  13. Place of Inspection and Acceptance                                          04/08/98
DESTINATION                                                                     THRU 04/08/99                     [...***...]
----------------------------------------------------------------------------------------------------------------------------------
                                    17. Schedule (SEE REVERSE FOR REJECTIONS)
----------------------------------------------------------------------------------------------------------------------------------
Item                                              Quantity                        Unit                          Quantity
 No.                Supplies or Services          Ordered          Unit          Price           Amount         Accepted
 (A)                          (B)                   (C)            (D)            (E)             (F)              (G)
----------------------------------------------------------------------------------------------------------------------------------

       PR FEF: 871338037 -001
  1  SERVICES                                        1             EA          [...***...]                    [...***...]
       DEVELOP AIR TRAFFIC SERVICE CORPORATE
       INFORMATION MANAGEMENT SYSTEM (CIMS)
       IN ACCORDANCE WITH TASK DESCRIPTION
       AND CONTRACTOR'S PROPOSAL DATED 2/18/98.
       .
       TOTAL PRICE OF TASK: [...***...]
       INCREMENTAL FUNDING IS PROVIDED IN
       THE AMOUNT OF [...***...].
       .
       CONTRACTOR SHALL NOT PERFROM WORK IN
       EXCESS OF [...***...] UNTIL
       FURTHER INCREMENTAL FUNDING IS

----------------------------------------------------------------------------------------------------------------------------------
                    18. Shipping Point        19. Gross Shipping Weight       20. Invoice No.                    17(H). To
   SEE BILLING                                                                                                     (CONT.
  INSTRUCTIONS                                                                                                     PAGES)
       ON           --------------------------------------------------------------------------------------------------------------
    REVERSE         21. Mail Invoice to: (INCLUDE ZIP CODE)              DOT/FAA,  ASO-22B                       17(I).
                      (404) 305-7060                              P.O. Box 45719                                   GRAND
                                                                  Atlanta, Georgia       30320-     [...***...]    TOTAL
----------------------------------------------------------------------------------------------------------------------------------
 17. UNITED STATES OF AMERICA                                                 23. NAME (TYPED)  (404) 305-5778
        BY (SIGNATURE)           /s/ Emanuel Green, Jr.                           EMANUEL GREEN, JR.                  3
                                                                                       Title: Contracting/Ordering Officer
----------------------------------------------------------------------------------------------------------------------------------
FAA Form 4400-18(4-85)
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

04/08/98                       DTFA06-95-C-30063              DTFA06-98-F-31150

       PROVIDED.
       .
       MONTHLY MILESTONE BILLING IS
       INCLUDED IAW ATTACHED SCHEDULE.

******************************** ACCOUNTING DETAILS ****************************

PR NUMBER  RGN  APPR   LIM    C/C     PGM      OBJ      PROJECT #

871338037   W   801     0     8030    270      2596
OBLG TOTAL      [...***...]  TRAN CHG                    .00  2211 CHG      .00

871338037   W   082A    0     G531    3A0100   2596     98750118
OBLG TOTAL      [...***...]  TRAN CHG                    .00  2211 CHG      .00

871338037   W   801     0     2250    151      2596
OBLG TOTAL      [...***...]  TRAN CHG                    .00  2211 CHG      .00

                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 19-AUG-1999             DTFA0695C30063                         DTFA0698F31150                          15
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Donna M Bonner
DATE SIGNED:                                                        Donna M Bonner                DATE SIGNED: 8/19/99
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
16 To provide incremental funding to the CIMS         [...***...]   Each            [...***...]           [...***...]
   Contract for Task Order #DTFA06-95-C-30063.

               REQUISITION NO. 9901414       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY          DELIVER BY
     #1  800 Independence Ave, SW                                                    --------          -----------
         Washington, DC 20951                                                      [...***...]         06-AUG-1999

         7.182A.0--.---.3A0100.8056--.2596.480100.-.--.-.00097789-
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
17 To provide incremental funding to the CIMS        [...***...]    Each            [...***...]           [...***...]
   Contract for Task #DTFA06-95-C-30063

               REQUISITION NO. 9901416       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
                                                                                     --------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD:    08-APR-1998             CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 19-AUG-1999             DTFA0695C30063                         DTFA0698F31150                          15
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

     #1  800 Independence Ave, SW
         Washington, DC 20951                                                    [...***...]

         7.182A.0--.---.3A0100.8056--.2596.480100.-.--.-.00097789-
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31150 TO DEVELOP AIR TRAFFIC SERVICE
INFORMATION MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO DECREASE
INCREMENTAL SERVICES.

a.  Increase Incremental funding in the amount of $[...***...].

b.  Increase the order from [...***...] to [...***...], an increase [...***...].

c.  There are no other changes for Modification NO. 0008
----------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  4
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
                                          DTFA0695C30063                         DTFA0698F31150                          13
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Donna M Bonner
DATE SIGNED:                                                        Donna M Bonner                DATE SIGNED: May 24, 1999
----------------------------------------------------------------------------------------------------------------------------------
NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31150 TO DEVELOP AIR TRAFFIC SERVICE
INFORMATION MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO INCREASE
INCREMENTAL SERVICES.

a.  Decrease Incremental funding in the amount of [...***...].

b.  Decrease the order from [...***...] to read [...***...] an decrease of [...***...].

c.  There are no other changes for Modification No. 0006.

NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31150 TO DEVELOP AIR TRAFFIC SERVICE
INFORMATION MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO INCREASE
INCREMENTAL SERVICES.

a.  Increase Incremental funding in the amount of [...***...].

b.  Increase the order from [...***...] to [...***...].

c.  There are no other changes for Modification No. 0007.

</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  4
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
                                          DTFA0695C30063                         DTFA0698F31150                          13
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
1  CIMS                                              [...***...]   US Dollar        [...***...]           [...***...]

                                                 PLACE OF INSPECTION AND ACCEPTANCE: Destination

     SHIPMENT ASO                                                                    QUANTITY
     # 1 PO Box 20636                                                                --------
         Atlanta, GA 30320                                                         [...***...]

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

***LINE 2 WAS CANCELLED ***
***LINE 3 WAS CANCELLED ***

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
4  This contract modification is to provide           [...***...]   Each            [...***...]           [...***...]
   systems engineering support in developing the
   Corporate Air Traffic Management Information
   System (CATMIS). CATMIS will provide procedures
   that will coordinate business information for ATS.

               REQUISITION NO. 9900582       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                          [...***...]        12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

***LINE 5 WAS CANCELLED ***
***LINE 6 WAS CANCELLED ***
***LINE 7 WAS CANCELLED ***
***LINE 8 WAS CANCELLED ***
***LINE 9 WAS CANCELLED ***
***LINE 10 WAS CANCELLED ***
***LINE 11 WAS CANCELLED ***
***LINE 12 WAS CANCELLED ***

</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     3  of  4
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
                                          DTFA0695C30063                         DTFA0698F31150                          13
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
13  Incremental funding in the amount of            [...***...]    Each              [...***...]          [...***...]
    [...***...] to the CIMS task order
    #DTFA06-95-C30063

    Non-ISO 9000                                PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900757       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     # 1 800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                      [...***...]

     MARK FOR: Deb Carlson
         W.901-.0--.---.270---.8030--.252B.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
14  Incremental funding to the CIMS task order       [...***...]    Each            [...***...]           [...***...]
    DTFA06-95-C30063 in the amout of
    [...***...] for development of ATSMIS

    Non-ISO 9000

               REQUISITION NO. 9900906       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY
     # 1 PO Box 20636                                                                --------
         Atlanta, GA 30320                                                          [...***...]

         W.901-.0--.---.15X---.9Z10--.252B.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]
</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     4  of  4
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
                                          DTFA0695C30063                         DTFA0698F31150                          13
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
15  Incremental funding for the CIMS contract        [...***...]    Each             [...***...]           [...***...]
    DTFA-06-95-C-30063 SOW attached

    Non-ISO 9000

               REQUISITION NO. 9901002       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     # 1 800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                       [...***...]

         W.901-.0--.---.270---.8E30--.2523.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

NOTE TO VENDOR
TASK ORDER NUMBER DTFA06-98-F-31150, TO DEVELOP AIR TRAFFIC SERVICE
INFORMATION MANAGEMENT SYSTEMS (CIMS) IS HEREBY MODIFIED TO INCREASE
INCREMENTAL SERVICES.

a.  Increase Incremental funding in the amount of [...***...].

b.  Increase the order from [...***...] to [...***...].

c.  There are no other changes for Modification No. 008

</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  3
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
                                          DTFA0695C30063                         DTFA0698F31150                          12
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Larry Cleveland
DATE SIGNED:                                                        Larry Cleveland               DATE SIGNED: 3/22/99
----------------------------------------------------------------------------------------------------------------------------------
NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31150 TO DEVELOP AIR TRAFFIC SERVICE
INFORMATION MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO DECREASE
INCREMENTAL SERVICES.

a.  Decrease Incremental funding in the amount of [...***...].

b.  Decrease the order from [...***...] to read [...***...] an decrease of [...***...].

c.  There are no other changes for Modification No. 0006.

NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31150 TO DEVELOP AIR TRAFFIC SERVICE
INFORMATION MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO INCREASE
INCREMENTAL SERVICES.

a.  Increase Incremental funding in the amount of [...***...].

b.  Increase the order from [...***...] to [...***...].

c.  There are no other changes for Modification No. 0007.

</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  3
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
                                          DTFA0695C30063                         DTFA0698F31150                          12
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
1  CIMS                                              [...***...]    US Dollar       [...***...]           [...***...]

                                                 PLACE OF INSPECTION AND ACCEPTANCE: Destination

     SHIPMENT ASO                                                                    QUANTITY
     # 1 PO Box 20636                                                                --------
         Atlanta, GA 30320                                                        [...***...]

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

***LINE 2 WAS CANCELLED ***
***LINE 3 WAS CANCELLED ***

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
4  This contract modification is to provide          [...***...]    Each            [...***...]           [...***...]
   systems engineering support in developing the
   Corporate Air Traffic Management Information
   System (CATMIS). CATMIS will provide procedures
   that will coordinate business information for ATS.

               REQUISITION NO. 9900582       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                          [...***...]        12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

***LINE 5 WAS CANCELLED ***
***LINE 6 WAS CANCELLED ***
***LINE 7 WAS CANCELLED ***
***LINE 8 WAS CANCELLED ***
***LINE 9 WAS CANCELLED ***
***LINE 10 WAS CANCELLED ***
***LINE 11 WAS CANCELLED ***
***LINE 12 WAS CANCELLED ***

</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     3  of  3
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
                                          DTFA0695C30063                         DTFA0698F31150                          12
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
13  Incremental funding in the amount of            [...***...]     Each             [...***...]           [...***...]
    [...***...] to the CIMS task order
    #DTFA06-95-C30063

    Non-ISO 9000                                PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900757       PRI CODE: 5-4

     SHIPMENT AWA                                                                    QUANTITY
     # 1 800 Independence Ave, SW                                                    --------
         Washington, DC 20951                                                      [...***...]

     MARK FOR: Deb Carlson
         W.901-.0--.---.270---.8030--.252B.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                  [...***...]

</TABLE>
                      *CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 05-FEB-1999             DTFA0695C30063                         DTFA0698F31150                          11
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.             OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT: Destination           SHIP VIA: Best Means

DISCOUNT TERMS: Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD:   [...***...]
Donna M Bonner
404-305-5987                                                                              FROM:   [...***...]

                                                                           AWARD IS CHANGED BY:   [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Donna M Bonner
DATE SIGNED:                                                        Donna M Bonner               DATE SIGNED: 2/11/99
----------------------------------------------------------------------------------------------------------------------------------
NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31150 TO DEVELOP AIR TRAFFIC SERVICE
INFORMATION MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO DECREASE
INCREMENTAL SERVICES.

a.  Decrease Incremental funding in the amount of [...***...].

b.  Decrease the order from [...***...] to read [...***...] an decrease of [...***...].

c.  There are no other changes for Modification No. 0006.

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
1  CIMS                                             [...***...]    US Dollar         [...***...]          [...***...]

                                                 PLACE OF INSPECTION AND ACCEPTANCE: Destination

     SHIPMENT ASO                                                                    QUANTITY
     # 1 PO Box 20636                                                                --------
         Atlanta, GA 30320                                                        [...***...]

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]
</TABLE>

***LINE 2 WAS CANCELLED ***
***LINE 3 WAS CANCELLED ***

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  2
----------------------------------------------------------------------------------------------------------------------------------
DATE OF AWARD: 08-APR-1998                CONTRACT NUMBER (IF ANY):              AWARD NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 05-FEB-1999             DTFA0695C30063                         DTFA0698F31150                          11
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.             OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
4  This contract modification is to provide          [...***...]    Each             [...***...]          [...***...]
   systems engineering support in developing the
   Corporate Air Traffic Management Information
   System (CATMIS). CATMIS will provide procedures
   that will coordinate business information for ATS.

               REQUISITION NO. 9900582       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY          DELIVER BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                         [...***...]          12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

***LINE 5 WAS CANCELLED ***
***LINE 6 WAS CANCELLED ***
***LINE 7 WAS CANCELLED ***
***LINE 8 WAS CANCELLED ***
***LINE 9 WAS CANCELLED ***
***LINE 10 WAS CANCELLED ***
***LINE 11 WAS CANCELLED ***
***LINE 12 WAS CANCELLED ***

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
12  AT EIS                                           [...***...]    Each             [...***...]          [...***...]

     SHIPMENT ASO                                                                    QUANTITY          DELIVERY BY
     # 1 PO Box 20636                                                                --------          -----------
         Atlanta, GA 30320                                                         [...***...]         12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.---------
                                                                                      AMOUNT
                                                                                      ------
                                                                                 [...***...]

NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F-31150 TO DEVELOP AIR TRAFFIC SERVICE
INFORMATION MANAGEMENT SYSTEM (CIMS) IS HEREBY MODIFIED TO
INCREMENTAL SERVICES.

a.  Add Incremental Funding in the amount of [...***...].

b.  Increase the order from [...***...] to read [...***...] an increase of [...***...].

c.  Extend the period of performance to September 30, 2001.

d.  There are no other changes for Modification 0005.

</TABLE>

                            * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     1  of  5
----------------------------------------------------------------------------------------------------------------------------------
DATE OF ORDER: 08-APR-1998                CONTRACT NUMBER (IF ANY):              ORDER NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 03-FEB-1999             DTFA0695C30063                         DTFA0698F31150                               1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.          OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
CONTRACTOR (NAME, ADDRESS, AND ZIP CODE):                          MAIL INVOICE TO (NAME, ADDRESS, AND ZIP CODE):
TITAN SYSTEMS DIVISION                                             DOT/FAA
1900 CAMPUS COMMONS DR                                             Financial Services Division, ASO-20
SUITE 400                                                          PO Box 45719
RESTON, VA 22091                                                   Atlanta, GA 30320

--------------------------------------------------------------
CONTACT POINT/PHONE NO:                                            ---------------------------------------------------------------
Sherry Manuel                                                       ISSUING OFFICE (ADDRESS CORRESPONDENCE TO):
703-758-5642                                                        PO Box 20636
                                                                    Atlanta, GA 30320
--------------------------------------------------------------
F.O.B. POINT:     SHIP VIA:        DISCOUNT TERMS:
Destination       Best Means       Due in 30

----------------------------------------------------------------------------------------------------------------------------------
PURCHASER NAME AND PHONE NO:                                       TOTAL AMOUNT OF ORDER/AWARD: [...***...]
Donna M Bonner
404-305-5987                                                                              FROM: [...***...]

                                                                           AWARD IS CHANGED BY: [...***...]

----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Contractor / / is, / / is not required to sign this document and return __ copies to the issuing office.  OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
NAME AND TITLE OF PERSON AUTHORIZED TO SIGN:                        UNITED STATES OF AMERICA

BY:                                                                 NAME OF CONTRACTING OFFICER:

                                                                    BY: /s/ Emanuel Green, Jr.
                                                                    --------------------------
DATE SIGNED:                                                        Emanuel Green Jr.             DATE SIGNED: 2/3/99
----------------------------------------------------------------------------------------------------------------------------------

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
1  CIMS                                              [...***...]   US dollar         [...***...]           [...***...]

                                            PLACE OF INSPECTION AND ACCEPTANCE: Destination

     SHIPMENT ASO                                                                    QUANTITY
     #1  PO Box 20636                                                                --------
         Atlanta, GA 30320                                                         [...***...]

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]
</TABLE>

                                *CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     2  of  5
----------------------------------------------------------------------------------------------------------------------------------
DATE OF ORDER: 08-APR-1998                CONTRACT NUMBER (IF ANY):              ORDER NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 03-FEB-1999             DTFA0695C30063                         DTFA0698F31150                               1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.           OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
2  For initial design and development of the        [...***...]     Each             [...***...]           [...***...]
   Corporate Air Traffic Management Information
   System (CATMIS), next phase of development of
   the Air Traffic Executive Information System
   (ATEIS) Financial Modules and work on integrating
   levels.

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900581       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]    12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
3  Phase I development of Supplier online tools for   [...***...]  Each             [...***...]           [...***...]
   field access to operational and performance metrics.

   Non-ISO 9000                       PLACE OF INSPECTION AND ACCEPTANCE: Destination

               REQUISITION NO. 9900580       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO BOX 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
4  This contract modification is to provide         [...***...]     Each            [...***...]           [...***...]
   systems engineering support in developing
   the Corporate Air Traffic Management Information
   System (CATMIS). CATMIS will provide procedures
   that will coordinate business information for
   ATS.

               REQUISITION NO. 9900582       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     3  of  5
----------------------------------------------------------------------------------------------------------------------------------
DATE OF ORDER: 08-APR-1998                CONTRACT NUMBER (IF ANY):              ORDER NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 03-FEB-1999             DTFA0695C30063                         DTFA0698F31150                               1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.            OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
5  AR IRM Detailed Plan                              [...***...]    Each             [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]    12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
6  PBO Web Page                                       [...***...]   Each             [...***...]           [...***...]
   field access to operational and performance metrics.

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO BOX 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
7  CATTS                                             [...***...]    Each            [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     4  of  5
----------------------------------------------------------------------------------------------------------------------------------
DATE OF ORDER: 08-APR-1998                CONTRACT NUMBER (IF ANY):              ORDER NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 03-FEB-1999             DTFA0695C30063                         DTFA0698F31150                               1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.          OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
8  AT EIS                                            [...***...]    Each             [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]    12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
9  CAS into CATMIS                                   [...***...]   Each             [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO BOX 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
10 AT WEB                                            [...***...]    Each            [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

<PAGE>
<TABLE>
<S><C>
----------------------------------------------------------------------------------------------------------------------------------
FEDERAL AVIATION                              REVISION TO AWARD FOR SUPPLIES OR SERVICES                              PAGE
 ADMINISTRATION                                                                                                     5  of  5
----------------------------------------------------------------------------------------------------------------------------------
DATE OF ORDER: 08-APR-1998                CONTRACT NUMBER (IF ANY):              ORDER NO. (IF ANY):                REVISION NO.
DATE OF REVISION: 03-FEB-1999             DTFA0695C30063                         DTFA0698F31150                               1
----------------------------------------------------------------------------------------------------------------------------------
IMPORTANT: Mark all package(s), invoice(s), and correspondence with contract and/or order/award numbers.           OMB 2120-0595
----------------------------------------------------------------------------------------------------------------------------------
LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
11 AT Web                                            [...***...]    EACH             [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO Box 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]    12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

LINE DESCRIPTION                                       QUANTITY     UOM              UNIT PRICE            LI TOTAL $
----------------                                       --------     ---              ----------            ----------
12 AT EIS                                             [...***...]   Each             [...***...]           [...***...]

               REQUISITION NO. 9900583       PRI CODE: 5-4

     SHIPMENT ASO                                                                    QUANTITY     DELIVER BY
     #1  PO BOX 20636                                                                --------     ----------
         Atlanta, GA 30320                                                         [...***...]   12-JAN-1999

         W.901-.0--.---.151---.2250--.2596.480100.-.--.-.-------
                                                                                      AMOUNT
                                                                                      ------
                                                                                   [...***...]

NOTE TO VENDOR
RE: TASK ORDER NUMBER DTFA06-98-F31150 TO DEVELOP AIR TRAFFIC SERVICE INFORMATION MANAGEMENT SYSTEM (CIMS)
IS HERE MODIFIED TO INCREMENTAL SERVICES.

1.  Add Incremental Funding in the amount of [...***...].

2.  Increase the order from [...***...] to read [...***...] and increase of [...***...].

3.  Extend the period of performance to September 30, 2001.

4.  There are no other changes for Modification 0005.

----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                              * CONFIDENTIAL TREATMENT REQUESTED

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00000-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00000-of-00352.parquet"}]]