Document:

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                                                            GALILEO CONTRACT NO.
                                                                     US995431-ET

                                   ObjectSpace
                            MASTER SERVICES AGREEMENT

This MASTER SERVICES AGREEMENT ("Agreement") is effective as of the 6th day
of August, 1999 (the "Effective Date") by and between GALILEO INTERNATIONAL,
L.L.C. ("Galileo"), a Delaware limited liability company and wholly owned
subsidiary of Galileo International, Inc., with offices at 9700 West Higgins
Road, Rosemont, Illinois 60018, AND OBJECTSPACE, INC., a Delaware
corporation, whose mailing address is 14850 Quorum Drive, Suite 500, Dallas,
Texas 75240 ("ObjectSpace").

                                    RECITALS

     A. ObjectSpace is in the business of creating and deploying advanced
technology solutions that leverage existing object-oriented technology and
providing consulting, training, and software products.

     B. Galileo desires to obtain such services from ObjectSpace pursuant to
the terms of this Agreement.

     Therefore, in consideration of the mutual covenants contained herein,
Galileo and ObjectSpace agree as follows:

1. SERVICES

     A.   ObjectSpace shall provide software and/or professional or technical
          services (collectively referred to herein as the "Services") described
          in one or more Task Orders negotiated and signed from time to time by
          authorized representatives of both parties. Each Task Order shall set
          forth, at a minimum, a description of the Services to be performed,
          the number of ObjectSpace's personnel assigned to the project
          (including their names), the duration of each individual's assignment,
          the project deliverables, a schedule for completing the project,
          reporting requirements, a project manager for each party, software
          testing and acceptance criteria and license and maintenance fees (if
          applicable), the fees for the Services to be performed, identification
          of the portions of any software to be delivered that are New Software
          and Other Software, as defined herein, and, to the extent that
          software owned by third parties is a portion of the software to be
          delivered to Galileo pursuant to a Task Order, the Task Order shall
          also include an identification of such third party software and a
          specification of the manner in which Galileo has or can obtain rights
          to use such third party software including additional costs, as
          applicable. A specimen Task Order is attached hereto as Exhibit A.
          ObjectSpace shall have the right to accept or decline any proposed
          Task Order.

     B.   Galileo shall have the right to request modifications to the scope of
          the Task Order by notifying ObjectSpace of the nature of the proposed
          change. For each proposed change or addition, ObjectSpace agrees to
          provide to Galileo, at no additional charge, an analysis of such
          change or addition, which shall include the following: (1) An estimate
          of the time and materials cost for each such change; and (2) An
          estimate of the effect such change would have on the project,
          including the impact on outstanding and future deliverables and the
          related delivery dates for such deliverables. Any changes in the
          scope, price, schedule, or requirements of a project must be evidenced
          by a written amendment to the Task Order that is executed by
          authorized representatives of both parties.

     C.   The methods, details, and means of performing the Services shall be
          determined jointly by ObjectSpace and Galileo, subject to Galileo's
          right to assure satisfactory results by exercising its rights to
          inspect, stop work, make recommendations regarding details of the
          work, and request modifications to the scope of the Task Order. The
          Services shall be performed either at Galileo's or ObjectSpace's
          premises, as agreed. If Services are performed at Galileo's premises,
          Galileo shall provide ObjectSpace's personnel with appropriate
          workspace, equipment, and services, and ObjectSpace's personnel shall
          observe Galileo's security and safety policies.

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     D.   Galileo shall provide appropriate cooperation and access to key
          personnel to enable ObjectSpace to perform the Services.

2. PERSONNEL

     A.   The person(s) retained by ObjectSpace and actively engaged in the
          provision of Services under this Agreement shall be identified in the
          applicable Task Order by name, title or position and responsibilities.
          Galileo shall have the right to approve all Personnel providing
          Services. If Galileo reasonably determines that any of Consultant's
          personnel are not appropriate for the work being performed based on
          their skills, background, or experience, ObjectSpace shall make a good
          faith effort to assign other qualified personnel.

     B.   ObjectSpace may not utilize subcontractors to provide the Services
          without Galileo's prior written consent. Each subcontractor shall
          execute a written agreement whereby he agrees to be bound by the terms
          of this Agreement.

     C.   All persons providing Services to Galileo under this Agreement shall
          at all times be employees of ObjectSpace and not of Galileo. It is the
          intent of the parties that ObjectSpace at all times shall be an
          independent contractor with full and complete responsibility for all
          of its employees, representatives, and subcontractors (hereafter
          "Personnel"), including, Without limitation, payment of all
          payroll-related taxes. Nothing in this Agreement shall be interpreted
          to create or establish the relationship of employer and employee
          between Galileo and ObjectSpace or any of its Personnel.

3. SOFTWARE DELIVERY AND TESTING

     A.   To the extent the Services specified in a particular Task Order
          contemplate the creation of any new, custom software that does not
          exist in the current product offerings of ObjectSpace or any third
          party and that is to be created only for Galileo's benefit ("New
          Software"), the parties shall agree upon criteria and methods for
          testing and acceptance of such New Software. Delivery of such New
          Software shall include the New Software itself in object code format,
          the source code for the New Software, and any related documentation,
          flow charts, design documents, record and file layouts, user and
          maintenance manuals, and any other materials deemed necessary by
          Galileo to perform the acceptance testing specifically and solely
          associated with the New Software (the "Software Deliverables"). The
          parties hereto expressly agree that the Software Deliverables shall
          only include information, code and documentation associated with New
          Software developed for Galileo as a result of a Task Order and shall
          not include (1) any preexisting software owned by ObjectSpace or any
          third party or (2) other software created by ObjectSpace but not
          specifically for Galileo (collectively, the "0ther Software") that may
          be used in conjunction with the New Software created for Galileo.
          Galileo shall only receive executable code and user level
          documentation, where applicable and available for all Other Software.

     B.   Upon delivery of the Software Deliverables, ObjectSpace shall assist
          Galileo in testing the New Software, and take all reasonable steps to
          correct any defects identified by Galileo.

4. TERM

     This Agreement shall commence on the Effective Date and expire upon the
     parties' completion of all obligations set forth under this Agreement or
     August 5, 2000, whichever occurs first (such period being referred to
     herein as the "Term"). This Agreement may be earlier terminated in
     accordance with Section 18 hereof. This Agreement may not be renewed or
     extended except by written agreement executed by both parties. Any
     obligations that survive the expiration or termination of this Agreement
     shall continue thereafter in full force and effect.

5. PROJECT MANAGERS

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     ObjectSpace and Galileo shall each designate, prior to the commencement of
     work under this Agreement, a project manager who shall have responsibility
     for conveying decisions on behalf of the respective parties under this
     Agreement. Such designated project managers shall be identified in the
     applicable Task Order. All correspondence and reports pertaining to this
     Agreement shall be initiated by and addressed to the respective project
     managers, except that notices under this Agreement shall be addressed as
     specified under Notices, below.

6. REPORTS AND DOCUMENTATION

     As specified in the applicable Task Order (or as otherwise agreed by
     Galileo and ObjectSpace in writing), ObjectSpace shall provide to Galileo
     written reports of the Services (the "Reports").

7. PROPRIETARY RIGHTS

     A.   ObjectSpace hereby assigns to Galileo all right, title, and Interest
          in and to the New Software, the Software Deliverables, Reports, and
          other ideas, Inventions, discoveries, improvements, designs, computer
          programs, modules, products and related documentation and works of
          authorship, including any modifications or enhancements thereto, and
          other intellectual property created or conceived wholly or in part by
          ObjectSpace or Its Personnel In connection with performing Services
          pursuant to this Agreement, whether alone or in cooperation with
          Galileo or any other third party that are embodied in New Software
          (collectively, the "Work Product"). Galileo shall have the right to
          obtain and to hold exclusively in Galileo's own name all rights to any
          copyrights in any copyrightable materials embodied in the Work
          Product, and any extensions and renewals thereof. ObjectSpace agrees,
          at the request of Galileo and for no additional consideration, to
          execute such documents and perform such other acts as Galileo deems
          necessary to effectuate the transfer of rights hereunder.

     B.   ObjectSpace hereby agrees and acknowledges that neither ObjectSpace
          nor its Personnel shall have any right to: (1) use, reproduce, modify,
          prepare derivative works from, distribute, transmit or otherwise
          exploit the Work Product by any means whatsoever, or (2) develop, use,
          or distribute works that are similar or identical (in function,
          structure, sequence, or organization) to the Work Product, except as
          may be necessary to perform the Services.

     C.   The term Work Product shall not be construed to include, and
          ObjectSpace shall retain all rights, title, and interest in: (1) the
          Other Software or any other software program(s) and documentation
          owned or distributed by ObjectSpace that is developed independently by
          ObjectSpace outside the scope of the Services; (2) any object oriented
          subroutines that are used in developing or that are embodied in the
          Work Product (excluding any Galileo Confidential Information); and (3)
          any tools or utilities developed by or on behalf of ObjectSpace (the
          foregoing being hereinafter collectively referred to as "Proprietary
          Materials"). ObjectSpace grants to Galileo a non-exclusive,
          nontransferable, perpetual license to use such Proprietary Materials
          that are incorporated into the Work Product solely for the operation
          of the New Software (other than the "Voyager" software, which shall be
          licensed pursuant to a separate license agreement).

     C.   Notwithstanding the foregoing, ObjectSpace may, except as otherwise
          provided herein, freely use the "residuals" from the Work Product,
          provided that ObjectSpace shall maintain the confidentiality of
          Galileo's Confidential Information. (The term "residuals" shall mean
          the Work Product in nontangible form (i.e., not in written or other
          documentary form, including tape or disk) that may be retained in the
          memories of ObjectSpace Personnel who have had access to or assisted
          in development of the Work Product, including know-how, ideas, or
          techniques contained therein.)

     D.   During the term of this Agreement, and for a period of 12 months
          thereafter, ObjectSpace shall not, without Galileo's prior written
          consent, assign any ObjectSpace Personnel who have performed Services
          hereunder to perform, for any entity listed on Exhibit B, services
          similar to those performed by such Personnel hereunder.

8. REPRESENTATIONS AND WARRANTIES

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     A.   ObjectSpace represents and warrants that the Services shall be
          performed in a good and workmanlike manner and that the Services shall
          be of the highest professional standards and quality. ObjectSpace
          agrees to reperform any Services not meeting this warranty at no
          additional cost to Galileo.

     B.   ObjectSpace represents and warrants that any and all hardware,
          software (including embedded software), firmware and systems created
          and provided by ObjectSpace hereunder (each a "Product," collectively
          the "Products") shall be Year 2000 Compliant, as that term is defined
          herein. The term "Year 2000 Compliant" or "Year 2000 Compliance" shall
          mean that each Product, when used in accordance with its applicable
          documentation, shall be capable upon installation of accurately
          processing (including, but not limited to, providing, receiving,
          calculating, comparing and sequencing of data) date and daterelated
          data from, into, and between the twentieth and twenty-first centuries,
          including the years 1999 and 2000, and leap year calculations.
          ObjectSpace warrants that any New Software supplied hereunder shall be
          Year 2000 Compliant until December 31, 2003. ObjectSpace shall
          promptly repair any non-compliant Products and documentation. If
          ObjectSpace is unable to rectify a Year 2000 noncompliance issue after
          reasonable efforts, ObjectSpace hereby grants Galileo permission to
          modify the Products, or any portion thereof, to bring the Product(s)
          into Year 2000 Compliance.

     C.   ObjectSpace represents and warrants that it has obtained all written
          assignments and consents from any Personnel or other third party as
          may be necessary to effectuate fully the transfer and assignment of
          rights to the Work Product, and that no other assignments or consents
          are necessary or appropriate under any agreements concerning any of
          the Work Product in order for the transfer and assignment of any of
          the Work Product under this Agreement to be legally effective in the
          United States, India or any other relevant jurisdiction.

     D.   ObjectSpace warrants that the Work Product, and any modifications or
          enhancements thereto, shall not infringe any intellectual property or
          other proprietary right of a third party of which ObjectSpace has
          direct knowledge, and that ObjectSpace shall not enter into any
          agreement or take any action that would conflict with the proprietary
          rights granted to Galileo hereunder.

     E.   ObjectSpace represents and warrants that, for a period of 90 days
          following the successful completion of the acceptance testing
          procedures specified in Section 3 above, the Software Deliverables
          shall conform to Galileo's specifications and requirements.

     F.   ObjectSpace represents and warrants that neither ObjectSpace nor any
          Personnel have any obligations to prior employers or others relating
          to proprietary or confidential information or any inventions or
          discoveries relating to the business of Galileo, and neither
          ObjectSpace nor any Personnel is bound by any restriction, agreement,
          judgment or other limitation limiting ObjectSpace's ability to enter
          into this Agreement or to carry out its terms or shall engage in any
          activity or take any action that would be In conflict with or that
          would result in a breach or violation of any such restriction,
          agreement, judgment or other limitation.

9. FEES

     A.   In consideration of performance of the Services pursuant to the terms
          of this Agreement, Galileo shall pay to ObjectSpace the amounts
          specified in the applicable Task Order. Unless otherwise provided in
          the applicable Task Order, ObjectSpace shall submit to Galileo a
          monthly invoice for the Services and reimbursable expenses, showing in
          reasonable detail the distribution of charges based on milestones
          completed and/or the hours worked and an itemization of reimbursable
          expenses.

     B.   In the event that ObjectSpace is compensated in whole or in part on an
          hourly basis, ObjectSpace agrees to keep complete and accurate books
          and records of the actual number of hours worked in performing the
          Services. Galileo shall pay such invoices within thirty (30) days of
          receipt by Galileo. During the term of this Agreement and for a period
          of one year following expiration or termination for any reason,
          Galileo or its representative may, upon reasonable prior notice,
          inspect the aforesaid books and records and make copies thereof. Any
          such audit shall be at the expense of Galileo.

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10. TRAVEL EXPENSES

     Galileo shall reimburse ObjectSpace for reasonable and necessary travel and
     living expenses, including, without limitation, air fare (Coach Class
     only), lodging, meals (subject to a maximum per them of $40.00), taxi,
     telephone and rental car, actually incurred by ObjectSpace or Personnel in
     connection with Services related travel preapproved by Galileo, up to the
     maximum(s), if any, set forth in the applicable Task Order. Such expenses
     shall be reimbursed by Galileo only upon submission by ObjectSpace of
     written expense reports documenting such expenses with receipts for all
     expenditures greater than twenty-five dollars ($25.00). Except for the
     travel-related expenses specified in this Section 10, Galileo shall not be
     responsible for any out-of-pocket expenses of ObjectSpace or Personnel,
     unless otherwise provided in the applicable Task Order.

11. TAXES

     A.   Galileo shall pay any United States sales or use taxes (except for any
          tax levied upon or measured by ObjectSpace's gross receipts) imposed
          by any taxing authority and required to be paid by ObjectSpace or
          Galileo as a result of the services provided to Galileo under this
          Agreement. Galileo shall not be liable for any tax levied upon or
          measured by the income of ObjectSpace. Galileo shall not be liable for
          any interest or penalties assessed as a result of any delay by
          ObjectSpace in connection with any such taxes.

     B.   If a claim is made against ObjectSpace for any taxes that are to be
          paid by Galileo, ObjectSpace shall promptly notify Galileo. If Galileo
          so requests in writing, ObjectSpace shall, at Galileo's expense, take
          such action as Galileo may reasonably direct with respect to such
          taxes, including payment of such taxes under protest. If the tax has
          been paid, and if requested by Galileo, ObjectSpace shall, at
          Galileo's expense, take such action as Galileo may reasonably direct,
          including allowing Galileo to file a claim or commence legal action in
          ObjectSpace's name, to recover such tax payment. In the event of
          refund or recovery of any tax, or part thereof, ObjectSpace shall pay
          to Galileo promptly that portion of the tax paid by Galileo, including
          any interest received thereon.

12. INDEMNIFICATION

     ObjectSpace shall defend, indemnify and hold harmless Galileo, its owners,
     officers, employees, and agents (collectively "Galileo"), from and against
     any and all claims, suits, liabilities, judgments, losses, damages, fines,
     costs and expenses (including reasonable attorneys' fees and expenses)
     resulting from any claim, suit or demand by any third party arising from
     (I) infringement of any intellectual property or other proprietary right of
     any third party arising from any act by the ObjectSpace or Personnel or
     Galileo's exercise of the rights granted hereunder, (ii) injuries to or
     deaths of persons or loss of or damage to tangible property caused by
     ObjectSpace or Personnel; (iii) the negligence or willful misconduct of
     ObjectSpace or Personnel; or iv) breach by ObjectSpace or Personnel of this
     Agreement (including any representation or warranty made hereunder), all
     except to the extent proximately caused by the negligence or intentional
     misconduct of Galileo. ObjectSpace's obligations under this Section 12
     shall survive the expiration or other termination of this Agreement.
     Galileo agrees to provide ObjectSpace with written notice of any such third
     party claim or suit and reasonable cooperation in the defense of any such
     claim or suit. ObjectSpace shall have complete control over the defense and
     settlement of any such claim or suit. In the event of a claim or suit
     covered by Section 12(1) above, ObjectSpace may, at its option, and in
     complete fulfillment of its obligations under this Section 12 either, at
     the sole discretion of ObjectSpace, (a) secure by license or otherwise, the
     right for Galileo to continue to use the allegedly infringing material, (b)
     replace the allegedly infringing material with a non-infringing substitute
     of substantially equivalent functionality or, (c) return any funds received
     from Galileo that are directly related to the delivery of the allegedly
     infringing material, such funds may be associated with one or more Task
     Orders and may comprise all or part of the compensation associated with a
     Task Order.

13. CONSEQUENTIAL DAMAGES AND LIMITATIONS ON DAMAGES

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     EXCEPT FOR DAMAGES ASSOCIATED WITH CAUSES OF ACTION COVERED BY SECTION
     12(i) ABOVE, NEITHER PARTY SHALL BE LIABLE FOR, AND EACH PARTY WAIVES AND
     RELEASES ANY CLAIMS AGAINST THE OTHER PARTY FOR, ANY SPECIAL, INCIDENTAL OR
     CONSEQUENTIAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST REVENUES, LOST
     PROFIT, OR LOSS OF PROSPECTIVE ECONOMIC ADVANTAGE, RESULTING FROM
     PERFORMANCE OR FAILURE TO PERFORM UNDER THIS AGREEMENT, EVEN IF ADVISED OF
     THE POSSIBILITY OF SUCH DAMAGES. NOTWITHSTANDING ANY OTHER PROVISION OF
     THIS AGREEMENT AND EXCEPT FOR CLAIMS AND CAUSES OF ACTION COVERED BY
     SECTION 12(i) ABOVE, OBJECTSPACE'S TOTAL LIABILITY TO GALILEO FOR ANY CAUSE
     OF ACTION BROUGHT BY GALILEO REALTED IN ANY RESPECT TO THIS AGREEMENT OR TO
     THE SERVICES PERFORMED HEREUNDER OR THE SYSTEMS OR PRODUCTS DELIVERED
     HEREBY SHALL NOT EXCEED THREE TIMES THE AMOUNTS RECEIVED BY OBJECTSPACE
     FROM GALILEO FROM THE SERVICES PERFORMED BY OBJECTSPACE AS A RESULT OF THE
     TASK ORDER ASSOCIATED WITH THE CAUSE OF ACTION OR THREE TIMES THE AMOUNTS
     RECEIVED BY OBJECTSPACE IN THE TWELVE MONTHS PRECEDING THE FILING OF THE
     CAUSE OF ACTION, WHICHEVER IS LESS.

14. UNAUTHORIZED PAYMENTS

     A.   In connection with any performance under this Agreement, ObjectSpace
          shall at all times comply, and require all Personnel to comply, fully
          with all of the terms and provisions of the Foreign Corrupt Practices
          Act and any related or successor statute, regulation or governmental
          directive regarding payments to foreign nationals or other persons or
          entities.

     B.   In connection with any performance under this Agreement, ObjectSpace
          shall not make, and shall prohibit all Personnel from making, any
          payment or offer, promise or authorization of any payment, of any
          money or other article of value, to any official, employee or
          representative of any foreign government, or foreign business person
          or entity doing or seeking to do business with Galileo, in order
          either to obtain or to retain Galileo's business, or to direct
          Galileo's business to a third party, or to influence any act or
          decision of any government employee or representative, or of any
          employee or representative of Galileo, to perform or to fail to
          perform his or her duties, or to enlist the aid of any third party to
          do any of the foregoing.

     C.   In connection with any performance under this Agreement, ObjectSpace
          shall not solicit or receive any amount of cash or negotiable paper,
          or any item, service or favor of value from any present or prospective
          supplier, vendor or customer of Galileo, or from anyone else with whom
          Galileo does business, including any governmental official or
          representative, for or in connection with the obtaining or retaining
          any business of or with Galileo. ObjectSpace shall refuse to accept
          all such gifts and, if received, shall return such gifts to the donor.
          In all such cases ObjectSpace shall notify Galileo promptly of such
          gift or offer thereof. If Galileo deems it necessary, ObjectSpace
          shall turn over such gifts to Galileo for further handling.
          ObjectSpace shall require all Personnel to comply with the provisions
          of this Section 14.

15. CONFIDENTIAL INFORMATION

     Each of the parties is subject to the confidentiality obligations set forth
     in the mutual Non-Disclosure Agreement, dated September 1998, attached
     hereto as Exhibit C; and each party covenants to comply with its
     obligations thereunder throughout the term of this Agreement.

16. PUBLICITY

     Neither party shall refer to this Agreement or use the name of the other
     party in any form of publicity or advertising, either directly or
     indirectly, without the prior written consent of the other party. Neither
     party may use any trade name, trademark, service mark or product name of
     the other party, without first obtaining the other party's prior written
     approval of such use.

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17. FORCE MAJEURE

     Neither party shall be responsible for delays In or suspension of
     performance caused by acts of God or governmental authority, strikes or
     labor disputes, fires or other loss of manufacturing facilities, breach by
     suppliers of supply agreements, or other similar or dissimilar causes
     beyond the reasonable control of that party.

18. TERMINATION

     A.   If either party (the "Defaulting Party") fails to observe or perform
          any of its material obligations under this Agreement and if its
          failure continues for a period of ten (10) days after written notice
          from the other party to the Defaulting Party thereof, then, without
          prejudice to any other rights or remedies the other party may have,
          the other party may terminate this Agreement without termination
          liability upon written notice to the Defaulting Party. ObjectSpace
          acknowledges and agrees that ObjectSpace shall be in material breach
          of this Agreement in the event that ObjectSpace does not perform the
          Services to Galileo's reasonable satisfaction.

     B.   Notwithstanding anything to the contrary in this Section 18, either
          party may terminate this Agreement without termination liability
          immediately upon written notice to the other party in the event of any
          violation of the confidentiality provisions in Section 15 hereof, or,
          in the case of Galileo, in the event of a breach by ObjectSpace of any
          representation or warranty in Section 8 hereof.

     C.   All obligations of each party that have accrued before termination or
          that are of a continuing nature shall survive termination.

     D.   In the event of any termination of this Agreement prior to the
          expiration of the Term, ObjectSpace shall be entitled to receive the
          compensation it is due through the effective date of termination but
          shall not be entitled to any compensation after the effective date of
          termination, unless otherwise agreed.

     E.   Notwithstanding anything to the contrary in this Agreement, Galileo
          may, at its sole option, terminate any Task Order, or any portion
          thereof, upon thirty (30) days' advance written notice. Upon receipt
          of such notice, ObjectSpace shall advise Galileo of the extent to
          which performance has been completed through such date, and collect
          and deliver to Galileo whatever work product then exists in the manner
          requested by Galileo. ObjectSpace shall be paid for all work performed
          through the date of termination.

19. NON-WAIVER

     No waiver by either party of any default or breach by the other party of
     any provision of this Agreement shall be effective unless made in writing,
     and no waiver shall operate as or be deemed a waiver of any subsequent
     default or breach.

20. THIRD PARTY RIGHTS

     Nothing contained in this Agreement shall or is intended to create or shall
     be construed to create any right in or any duty or obligation to any third
     party.

21. AMENDMENTS

     This Agreement may be changed, modified, or amended from time to time only
     by express written agreement of both parties executed by their authorized
     representatives. To the extent any terms contained in a Task Order conflict
     with the terms of this Agreement, the terms set forth in the Task Order
     shall govern.

22. NOTICES

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     Notices under the terms of this Agreement shall be in writing and sent by
     prepaid certified mail, return receipt requested, or by telegram or
     telecopier, to the addresses provided below:

      Attn: Purchasing Manager               Fax: +1 (303) 397-5666
      Galileo International, L.L.C.
      5350 S. Valentia Way
      Englewood, CO 80111

      ObjectSpace, Inc.                      Fax: +1 (972) ___ - ___
      14850 Quorum Drive, Suite 500
      Dallas, Texas 75240

     Notices shall be effective on the first business day following receipt
     thereof. Notices sent by certified mail shall be deemed received on the
     date of delivery as indicated on the return receipt; notices sent by
     telegram or telecopier shall be deemed received on the date transmitted.

23. ASSIGNMENT

     Galileo may assign this Agreement to any Galileo owner, to any affiliate of
     such Galileo owner, to any wholly owned subsidiary, or to any successor of
     all or substantially all of its business or assets. This Agreement may not
     be otherwise assigned in whole or in part, and any such assignment shall be
     void and of no effect. ObjectSpace shall not assign or subcontract any part
     of the Services to be performed under this Agreement without the prior
     written consent of Galileo.

24. EQUAL OPPORTUNITY EMPLOYER

     Galileo certifies that it complies with Executive Order 11246 as amended,
     Section 503 of the Rehabilitation Act of 1973 as amended, and the Vietnam
     Era Veterans Readjustment Assistance Act of 1974 as amended, (38 USC 4212),
     and implementing regulations including the Equal Employment Opportunity
     Clause and the Affirmative Action Clause which are hereby incorporated by
     reference to the extent that Galileo is covered by those laws.

25. COMPLIANCE WITH LAWS

     ObjectSpace agrees to comply with all applicable state, federal, and local
     laws including, but not limited to, all applicable requirements of the
     Federal Government, pertaining to non-discrimination in employment and
     facilities, including without limitation, the provision contained in
     Paragraphs 1 through 7 of Part II, Nondiscrimination in Employment by
     Government Contractors and Subcontractors, of Executive Order 1124 (as
     amended by Executive Order 11375), and Certification of Nonsegregated
     Facilities (41 CRF, Chapter 1, Sections 1-12, 803.10) all of which
     provisions are incorporated herein by reference and expressly made a part
     hereof, ObjectSpace certifies that all articles delivered hereunder were
     produced in conformance with the Fair Labor Standards Act.

26. GOVERNING LAW

     This Agreement and any dispute arising under or in connection with this
     Agreement, including any action in tort, shall be governed by the internal
     laws of the State of Illinois of the United States of America, without
     regard to its conflict of laws principles. All actions brought to enforce
     or arising out of this Agreement shall be brought in federal or state
     courts located within the County of Cook, State of Illinois, the parties
     hereby consenting to personal jurisdiction and venue therein.

27. ENTIRETY OF AGREEMENT

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     This Agreement supersedes all prior oral or written representations or
     communications between the parties and, together with the Exhibits, the
     Task Orders, and any Non-Disclosure Agreements between the parties,
     constitutes the entire understanding of the parties regarding the subject
     matter of this Agreement.

28. CONFLICT OF INTEREST WAIVER

     ObjectSpace hereby waives any and all rights it may now have or hereafter
     acquire to assert, as a basis for rescinding or voiding this Agreement or
     in any other manner avoiding the performance of any obligation undertaken
     in this Agreement, a claim or defense of conflict-of-interest, based on the
     fact that: (I) one or more officers of Galileo serve as director(s) of
     ObjectSpace; or (ii) Galileo owns a minority equity interest in
     ObjectSpace.

IN WITNESS WHEREOF, the parties by their authorized representatives have
executed this Agreement on the dates provided below.

ObjectSpace, Inc.                          Galileo Intemational, L.L.C.

By:  /s/ Kenneth J. Overton                By:  /s/ Lori M. Tobin
     ---------------------------                -----------------------------
Name: Kenneth J. Overton                   Name:  Lori M. Tobin
Title:  VP, Enterprise Solutions           Title:  Senior Manager, Purchasing
Date:  September 13, 1999                  Date:  September 23, 1999

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                                    EXHIBIT A

                           S P E C I M E N TASK ORDER

                TASK ORDER #    TO GALILEO CONTRACT NO. US995431-ET

                NAME OF PROJECT:

     This Task Order is entered into pursuant to the ObjectSpace Master
Services Agreement, dated as of August 6, 1999 ("Master Services Agreement"),
between ObjectSpace, Inc. and Galileo International, L.L.C. This Task Order
(and any attachments incorporate herein by reference) and the Master Services
Agreement constitute the entire agreement between Galileo and ObjectSpace
with respect to the Services described in this Task Order and supersede any
and all prior agreements, proposals, representations, statements, or
understandings, whether written or oral, concerning such Services or the
rights and obligations of the parties relating thereto. In the event of any
inconsistency between the terms of this Task Order (and attachments, if any)
and the Master Services Agreement, the terms of this Task Order shall prevail.

DESCRIPTION OF THE SERVICES TO BE PERFORMED:

PROJECT COMPLETION SCHEDULE:

DELIVERABLE&

OBJECTSPACE PERSONNEL ASSIGNED TO PROJECT:

NAME          TITLE       RATE OF COMPENSATION        DURATION OF ASSIGNMENT
----          -----       --------------------        ----------------------

REPORTING REQUIREMENTS:

GALILEO PROJECT MANAGER:

OBJECTSPACE PROJECT MANAGER:

SOFTWARE TESTING AND ACCEPTANCE CRITERIA:

SOFTWARE LICENSE AND MAINTENANCE FEES:

COMPENSATION, BILLING SCHEDULE AND PAYMENT TERMS:
(include applicable milestones and completion incentives)

MAXIMUM REIMBURSABLE EXPENSES:

ADDITIONAL CONDITIONS:

OBJECTSPACE, INC.                       GALILEO INTERNATIONAL, L.L.C.
By:                                     By:
Name:                                   Name:
Title:                                  Title:
Date:                                   Date:

<PAGE>

                                    EXHIBIT B

                       To Galileo Contract No. US995431-ET

                              PRECLUDED ENGAGEMENTS

                                      Sabre
                                     Amadeus
                                    WorldSpan
                         Microsoft Products Corporation

<PAGE>

                                    EXHIBIT C

                            NON-DISCLOSURE AGREEMENT<PAGE>

CONFIDENTIAL INFORMATION HAS BEEN OMITTED FROM THIS DOCUMENT AND FILED
SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 406 OF
THE SECURITIES ACT OF 1933, AS AMENDED. ASTERISKS DENOTE THESE OMISSIONS.

                            LICENSE AGREEMENT between

                  ObjectSpace, Inc. and Tivoli Systems Inc. for

                               ObjectSpace Voyager

                          Agreement Number: OEM9700287

This Agreement dated October 28, 1997 ("Effective Date") is between ObjectSpace
Inc. ("ObjectSpace") with an address for purposes of this Agreement at 14881
Quorum Drive, Suite 400, Dallas, Texas 75240, and Tivoli Systems Inc.
("Tivoli"), with an address for purposes of this Agreement at 9442 Capital of
Texas Highway, Austin, Texas 78759. Tivoli is a wholly owned subsidiary of
International Business Machines Corporation ("IBM"). Under this Agreement,
ObjectSpace grants Tivoli a limited license to its computer software program
known as ObjectSpace Voyager which enables Tivoli to build Java applications for
system, network and application management using the ObjectSpace Voyager APIs,
tools and run-time environment.

By signing below, the parties agree to the terms of this Agreement. The complete
Agreement between the parties regarding this transaction consists of this
License Agreement and the following Attachments:

         1.       "Description of Licensed Work;"
         2.       "Testing, Maintenance and Support;" and
         3.       "Certificate of Originality."

Confidential Disclosure Agreement ("CDA"), No. OTH9700233, dated August 12,
1997, and the "Tivoli End User License Agreement", No. ETM9700288, are related
agreements between the parties.

This Agreement replaces all prior oral or written communications between the
parties relating to the subject matter. Once signed, any reproduction of this
Agreement made by reliable means (for example, photocopy or facsimile) is
considered an original, unless prohibited by local law.

ACCEPTED AND AGREED TO:                     ACCEPTED AND AGREED TO:

TIVOLI SYSTEMS INC.                         OBJECTSPACE, INC.

By:   /s/  HOWARD J. NICHOLAS               By:    /s/   KENNETH J. OVERTON
    --------------------------------           --------------------------------
         Authorized Signature                            Authorized Signature

Name:     Howard J. Nicholas                Name:      Kenneth J. Overton
     ------------------------------              ------------------------------

Title: Manager, Contract Services           Title: VP, Enterprise Solutions
      -----------------------------               -----------------------------

Date:     October 28, 1997                  Date:      October 28, 1997
     ------------------------------              ----------------------------

                                       1
<PAGE>

1.0      DEFINITIONS

Capitalized terms in the Agreement have the following meanings.

 1.1 Code is computer programming code, including both Object Code and Source
Code.

         a.       OBJECT CODE is Code substantially in binary form, and includes
                  header files of the type necessary for use or interoperation
                  with other computer programs. It is directly executable by a
                  computer after processing or linking, but without compilation
                  or assembly. Object Code is all Code other than Source Code.
         b.       SOURCE CODE is Code in a form which when printed out or
                  displayed is readable and understandable by a programmer of
                  ordinary skills. It includes related source code level system
                  documentation, comments and procedural code. Source Code does
                  not include Object Code.

 1.2     DELIVERABLE is any item that ObjectSpace provides under this Agreement.

 1.3     DERIVATIVE WORK is a work that is based on an underlying work and that
         would be a copyright infringement if prepared without the authorization
         of the copyright owners of the underlying work. Derivative Works are
         subject to the ownership rights and licenses of a party or of others in
         the underlying work.

 1.4     DISTRIBUTORS are those authorized or licensed by Tivoli or IBM, or any
         of their Subsidiaries or Distributors, to license or distribute
         Products.

 1.5     ENHANCEMENTS are changes or additions, other than Error Corrections, to
         the Licensed Work.

         a.       BASIC ENHANCEMENTS are all Enhancements, other than Major
                  Enhancements, including those that support new releases of
                  operating systems and devices.
         b.       MAJOR ENHANCEMENTS provide substantial additional value and
                  are offered to customers for an additional charge.

 1.6     ERROR CORRECTIONS are revisions that correct errors and deficiencies
         (collectively referred to as "errors") in the Licensed Works.

 1.7     EXTERNALS are (1) any pictorial, graphic, and audiovisual works (such
         as icons, screens, sounds, and characters) generated by execution of
         Code, and (2) any programming interfaces, languages or protocols
         implemented in Code to enable interaction with other computer programs
         or the end user. Externals do not include the Code that implements
         them.

 1.8     LICENSED WORK is (1) ObjectSpace Voyager Code, in both Object Code and
         Source Code format, including any other material described in or that
         conforms to the description in the Attachment entitled "Description of
         Licensed Work," or that is delivered to Tivoli as the Licensed Work,
         including (but not limited to) Code, associated documentation, and
         Externals, and (2) Error Corrections and Enhancements.

 1.9     MORAL RIGHTS are personal rights associated with authorship of a work
         under applicable law. They include the rights to approve modifications
         and to require authorship identification.

                                       2

<PAGE>

 1.10    PRODUCT is a current and/or future product, including a new version or
         release of such product, whether or not branded by Tivoli or IBM, which
         contains some or all of the Licensed Work or a Derivative Work of a
         Licensed Work. A Product must add significant function or value to the
         Licensed Work contained in the Product by integrating, embedding,
         bundling or incorporating it into or with one or more of Tivoli's
         network or systems management products or suite of products (including
         IBM if such Tivoli products are transferred to it) such that the
         primary reason for developing the Product is other than to license the
         Licensed Works by themselves to third parties.

 1.11    SUBSIDIARY is an entity during the time that more than 50% of its
         voting stock is owned or controlled, directly or indirectly, by another
         entity. If there is no voting stock, a Subsidiary is an entity during
         the time that more than 50% of its decision-making power is controlled,
         directly or indirectly, by another entity.

 1.12    TOOLS include devices, compilers, programming, documentation, media and
         other items required for the development, maintenance or implementation
         of a Deliverable that are not commercially available.

2.0      RESPONSIBILITIES OF OBJECTSPACE

2.1      ObjectSpace will provide the following Deliverables to Tivoli as soon
         as commercially practical but no later than 30 days from the Effective
         Date:

         a        one complete set of the Licensed Work described in the
                  Attachment entitled "Description of Licensed Work".

         b.       Tools. There are currently no Tools for the Licensed Work. If
                  Tools are later required, ObjectSpace will provide Tivoli with
                  a written list that includes a description of the Tool, and
                  promptly deliver such Tools (including updates to such Tools)
                  to Tivoli.

         c.       any updates to the following list. This list identifies any
                  commercially available devices, compilers, programming,
                  documentation, media and other items required for the
                  development, maintenance or implementation of a Deliverable:

<TABLE>
<CAPTION>

          ----------------------------------------------------------------------------------------------
                                        PART NUMBER/            VERSION/
              DESCRIPTION               MODEL NUMBER            RELEASE                 MANUFACTURER
          ----------------------------------------------------------------------------------------------
          <S>                          <C>                      <C>                     <C>
          -----------------------------------------------------------------------------------------------
           1
          -----------------------------------------------------------------------------------------------
           2
          -----------------------------------------------------------------------------------------------
           3
          -----------------------------------------------------------------------------------------------
           4
          -----------------------------------------------------------------------------------------------
           5
          -----------------------------------------------------------------------------------------------
           6
          -----------------------------------------------------------------------------------------------
</TABLE>

                  ObjectSpace's delivery obligations for Tools does not apply to
                  the items listed in this chart.

         c.       a completed certificate of originality with the Licensed Work,
                  and with each Enhancement to the Licensed Work, in the form
                  specified in the Attachment entitled

                                       3
<PAGE>

CONFIDENTIAL INFORMATION HAS BEEN OMITTED FROM THIS DOCUMENT AND FILED
SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 406 OF
THE SECURITIES ACT OF 1933, AS AMENDED. ASTERISKS DENOTE THESE OMISSIONS.

                  "Certificate of Originality". Tivoli may suspend payments to
                  ObjectSpace for the Licensed Work if ObjectSpace does not
                  provide a properly completed certificate. Payment will resume
                  after Tivoli receives and accepts the certificate.

2.2      ObjectSpace will provide support for the Licensed Work as follows:

         a.       For the first full year following the Effective Date,
                  ObjectSpace will provide to Tivoli, at no charge, testing,
                  maintenance and support for the Licensed Work as described in
                  this Agreement, including the Attachment entitled, "Testing,
                  Maintenance and Support," as well as Basic and Major
                  Enhancements, and Error Corrections for the Licensed Work
                  beginning when Tivoli accepts the Licensed Work.
         b.       For the second full year following the Effective Date, Tivoli
                  may, at its option, elect to continue to purchase such
                  testing, maintenance, support, Enhancements (both Basic and
                  Major), and Error Corrections from ObjectSpace for an annual
                  fee of *.
         c.       Thereafter, Tivoli may, at its option, elect to continue to
                  purchase such testing, maintenance, support, Enhancements
                  (both Basic and Major), and Error Corrections from ObjectSpace
                  for the annual fee defined in this paragraph for so long as
                  Tivoli may require such support. ObjectSpace may charge Tivoli
                  an annual fee for such support not to exceed 105% of the fee
                  for the prior twelve month period.
         d.       ObjectSpace agrees to submit an invoice to Tivoli for such
                  support on an annual basis, and at least 30 days prior to the
                  beginning of each 12 month period. If Tivoli does not wish to
                  receive such support, Tivoli will so notify ObjectSpace.
         e.       If Tivoli cancels such support, Tivoli may reinstate it at a
                  later time by paying the support charges then in effect and an
                  additional fee. The additional fee will be equal to the
                  current annual support charges multiplied by the number of
                  annual periods for which support was interrupted. For purposes
                  of calculating the additional fee, portions of periods will
                  count as full periods.

2.3      ObjectSpace will:

         a.       participate in progress reviews, as requested by Tivoli, to
                  demonstrate ObjectSpace's performance of ObjectSpace's
                  obligations;
         b.       implement or continue suitable processes designed to help
                  prevent contamination by harmful code. ObjectSpace will
                  provide Tivoli notice if ObjectSpace suspects contamination;
         c.       have agreements with ObjectSpace's personnel and third parties
                  to perform obligations and to grant or assign rights to Tivoli
                  as required by this Agreement. On request, ObjectSpace will
                  provide Tivoli with evidence of these agreements;
         d.       maintain records to verify authorship of the Licensed Work for
                  4 years after the termination or expiration of this Agreement.
                  On request, ObjectSpace will deliver or otherwise make
                  available this information in a form specified by Tivoli;
         e.       not assign or transfer this Agreement or ObjectSpace's rights
                  under it, or delegate or subcontract ObjectSpace's
                  obligations, without Tivoli's prior written consent.
                  Notwithstanding the foregoing, ObjectSpace may assign or
                  otherwise transfer this

                                       4
<PAGE>

                  Agreement, or delegate its duties and obligations under
                  this Agreement, to a Subsidiary of ObjectSpace, without the
                  consent of Tivoli, but ObjectSpace will promptly notify
                  Tivoli of any such transfer, assignment or delegation. Any
                  other attempt to do so is void. In addition, ObjectSpace
                  specifically agrees that, prior to any planned sale by
                  ObjectSpace of the Licensed Work or sale by ObjectSpace of
                  its assets, which include the Licensed Work, including any
                  merger or other business combination, it will offer the
                  Licensed Work to Tivoli under the same terms and
                  conditions, including pricing, as ObjectSpace agreed on
                  with such prospective purchaser, on a first right of
                  refusal basis. If Tivoli elects not to exercise such right,
                  it will not unreasonably withhold its consent to an
                  ObjectSpace request under this section;
         f.       not provide any information to the media, or issue any press
                  releases or other publicity, regarding this Agreement or the
                  parties' relationship under it, without Tivoli's prior written
                  consent, except as otherwise set forth in Section 4.1 of this
                  Agreement; and
         g.       not disclose to a third party the terms of this Agreement or
                  the fact that Tivoli has licensed the Licensed Work, without
                  Tivoli's prior written consent, except as otherwise set forth
                  in Section 4.1 of this Agreement. ObjectSpace may, however,
                  make such disclosures (i) to its accountants, lawyers or other
                  professional advisors provided that any such advisor is under
                  a confidentiality obligation and (ii) as required by law
                  provided ObjectSpace obtains any confidentiality treatment for
                  it which is available.

2.4      If ObjectSpace fails to deliver the Licensed Work, Tivoli may either
         reduce any amounts due hereunder by an amount equal to the value not
         received, or have ObjectSpace reimburse Tivoli for the value not
         received, up to the total license fee set forth under Section 6 below.
         ObjectSpace also acknowledges that if it does not deliver the Licensed
         Work, Tivoli will suffer irreparable harm and will be entitled to all
         equitable remedies, including specific performance for the delivery of
         such Licensed Work.

         If ObjectSpace fails to deliver maintenance, support, Enhancements
         (both Basic and Major), and Error Corrections for a Licensed Work,
         Tivoli may either reduce any amounts due hereunder by an amount equal
         to the value not received, or have ObjectSpace reimburse Tivoli for the
         value not received, up to a total of the annual fee paid by Tivoli for
         the year in which such failure occurred.

3.0      TIVOLI OBLIGATIONS

3.1      Tivoli will provide ObjectSpace with the following Tivoli software
         programs, in the quantities specified, under the terms and conditions
         of its standard Tivoli End User License Agreement, a copy of which is
         attached to this Agreement. In consideration of the rights and licenses
         granted by ObjectSpace under this Agreement, Tivoli agrees to waive the
         one-time charge for such programs, and the first year's fee for
         maintenance and support for the such programs as described in the
         Tivoli End User License Agreement. After the first year, such
         maintenance and support will be available at Tivoli standard pricing.

                                       5
<PAGE>

CONFIDENTIAL INFORMATION HAS BEEN OMITTED FROM THIS DOCUMENT AND FILED
SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 406 OF
THE SECURITIES ACT OF 1933, AS AMENDED. ASTERISKS DENOTE THESE OMISSIONS.

<TABLE>
<CAPTION>

         PROGRAM NAME                                                            QUANTITY
<S>                                                                    <C>                <C>
                                                                        SERVERS           CLIENTS
         TME [*] Enterprise Console                                     [*]               [*]
         TME [*] Netview                                                [*]               [*]
         TME [*] Framework                                              [*]               [*]
         TME [*] Software Distribution                                  [*]               [*]
         TME [*] Inventory                                              [*]               [*]
         TME [*] User Administration                                    [*]               [*]
         TME [*] Distributed Monitoring                                 [*]               [*]
         TME [*] Remote Control                                         [*]               [*]
         _______                                                        [*]               [*]
</TABLE>

 4.0     MUTUAL OBLIGATIONS

 4.1     The parties agree to issue a mutually-acceptable press release
         regarding their relationship under this Agreement as soon as
         commercially practicable following the Effective Date.

 4.2     The parties agree to perform certain joint marketing activities
         regarding Products when such marketing is to the mutual benefit of both
         parties, as determined by each party in its sole discretion.

 4.3     Tivoli agrees to allow ObjectSpace to write a case study covering the
         benefits Tivoli received through the use of the Licensed Work as an
         infrastructure for the development of Products. Tivoli will allow
         ObjectSpace to interview up to five members of its development and
         marketing staff in connection with this case study. Subject to Tivoli's
         final approval and provided no confidential information of Tivoli is
         included, this case study is for unrestricted publication by
         ObjectSpace. Tivoli has full rights to review and approve all contents
         of the case study. ObjectSpace will cooperate with Tivoli in making any
         changes needed to achieve a case study acceptable to Tivoli, and Tivoli
         will cooperate with ObjectSpace to facilitate its internal review and
         approval processes.

5.0      LICENSE GRANTS

5.1      ObjectSpace grants Tivoli a nonexclusive, worldwide, perpetual,
         irrevocable, paid-up license to prepare Derivative Works of, and only
         to internally use, execute, reproduce, display, perform, and
         distribute, the Licensed Work in Source Code form, any Tools (in the
         event ObjectSpace delivers Tools under Section 2.1.b) and such
         Derivative Works, in any medium or distribution technology whatsoever,
         whether known or unknown, solely for Products. The rights and licenses
         granted by ObjectSpace to Tivoli hereunder also include the right of
         Tivoli to authorize or sublicense IBM, and any of Tivoli's and IBM's
         Subsidiaries, contractors, and consultants, to exercise any of the
         rights granted to Tivoli in this Section 5.1. Any such contractors and
         consultants will be under appropriate confidentiality restrictions no
         less restrictive than the CDA referenced on the first page of this
         Agreement.

 5.2     ObjectSpace also grants Tivoli a nonexclusive, worldwide, perpetual,
         irrevocable, paid-up right to sublicense and deliver a copy of the
         Source Code of the Licensed Work and Derivative Works thereof to third
         parties, including but not limited to Distributors, only in association
         with the

                                       6
<PAGE>

         delivery and sublicensing of the Source Code of Products, and only
         if the Source Code is subject to the same restrictions as the Source
         Code of the Product. This includes the ability to sublicense the
         Source Code of a Product to fulfill an escrow obligation if its
         customer(s) requires Tivoli or IBM to place Source Code in an escrow
         account for maintenance and support purposes. The rights and
         licenses granted by ObjectSpace to Tivoli hereunder also include the
         right of Tivoli to authorize or sublicense IBM, and any of Tivoli's
         and IBM's Subsidiaries, to exercise any of the rights granted to
         Tivoli in this Section 5.2.

 5.3     ObjectSpace grants Tivoli a nonexclusive, worldwide, perpetual,
         irrevocable, paid-up license to reproduce, transfer, distribute
         internally and externally, and sublicense the Object Code only of the
         Licensed Work and its Derivative Works, and documentation, in any
         medium or distribution technology whatsoever, whether known or unknown,
         provided that such Object Code is distributed and sublicensed in
         conjunction with Products, and not in a stand-alone form. ObjectSpace
         grants Tivoli the right to authorize or sublicense others to exercise
         any of the rights granted to Tivoli in this Section 5.3.

 5.4     ObjectSpace grants Tivoli a nonexclusive, worldwide, perpetual,
         irrevocable, paid-up license to prepare Derivative Works of the
         Externals, and to use, execute, reproduce, display, perform, transfer,
         distribute, and sublicense the Externals and such Derivative Works, in
         any medium or distribution technology whatsoever, whether known or
         unknown. ObjectSpace grants Tivoli the right to authorize or sublicense
         others to exercise any of the rights granted to Tivoli in this Section
         5.4.

 5.5     The grant of rights and licenses to the Licensed Work and Tools
         includes a nonexclusive, worldwide, perpetual, irrevocable, paid-up
         license under any patents and patent applications that are owned or
         licensable by ObjectSpace now or in the future and are (1) required to
         make, have made, use and have used the Licensed Work or its Derivative
         Works or (2) required to license or transfer the Licensed Work or its
         Derivative Works; provided, however, that-a license to such patents
         would have been required to exercise these rights to the Licensed Work
         without regard to the Derivative Works. This license applies to the
         Licensed Work and its Derivative Works operating alone or in
         combination with equipment or Code. The license scope is to make, have
         made, use, have used, sell, license or transfer items, and to practice
         and have practiced methods, to the extent required to exercise the
         rights granted hereunder to the Licensed Work and Tools.

 5.6     Subject to ObjectSpace's ownership of the Licensed Work and Tools,
         Tivoli will own any Derivative Works it creates.

 5.7     ObjectSpace grants Tivoli a nonexclusive, worldwide, perpetual,
         irrevocable, paid-up license to use the names and trademarks
         ObjectSpace uses to identify the Licensed Work for Tivoli's marketing
         of the Products. ObjectSpace grants Tivoli the right to authorize or
         sublicense others to exercise any of the rights granted to Tivoli in
         this Section 5.7. If Tivoli's use of ObjectSpace's names and trademarks
         is improper and ObjectSpace provides Tivoli notice that ObjectSpace
         objects to it, Tivoli will take all reasonable steps necessary to
         resolve ObjectSpace's objections. ObjectSpace may reasonably monitor
         the quality of products bearing its trademark under this license.

                                       7
<PAGE>

CONFIDENTIAL INFORMATION HAS BEEN OMITTED FROM THIS DOCUMENT AND FILED
SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 406 OF
THE SECURITIES ACT OF 1933, AS AMENDED. ASTERISKS DENOTE THESE OMISSIONS.

 5.8     Any goodwill attaching to Tivoli's trademarks, service marks, or trade
         names belongs to Tivoli and this Agreement does not grant ObjectSpace
         any right to use them. Tivoli may state that ObjectSpace has provided
         the Licensed Work. ObjectSpace may state that it has licensed the
         Licensed Work to Tivoli.

 5.9     Subject to agreement on the license fee to be paid to ObjectSpace,
         ObjectSpace agrees that the rights and licenses granted by ObjectSpace
         hereunder also include the right of Tivoli and IBM to exercise any of
         the rights granted to Tivoli in this Section 5 on products other than
         the Product.

         ObjectSpace further agrees that any such license fee will be
         reasonable, nondiscriminatory, and consistent with the license fee paid
         by other similarly situated customers.

 6.0     PAYMENT

 6.1     For the rights and licenses received, Tivoli will pay ObjectSpace a
         total license fee of * in two payments, as follows:

         Within 30 days of the Effective Date                          *

         On January 31, 1998                                           *

 6.2     ObjectSpace will submit invoices to Tivoli for the above amounts prior
         to the payment date. After Tivoli's receipt of a valid invoice, Tivoli
         will pay ObjectSpace the amounts due upon the above dates.

 6.3.    For support as set forth in Section 2.2, ObjectSpace agrees to submit
         an invoice to Tivoli for such support on an annual basis, and at least
         30 days prior to the beginning of each 12 month period. After Tivoli's
         receipt of a valid invoice, Tivoli will pay ObjectSpace the amounts due
         within 30 days. If Tivoli does not wish to receive such support, Tivoli
         will so notify ObjectSpace.

 6.4     All invoices will include the following information:

         a. ObjectSpace's company and remit to address; and
         b. Reference to this Agreement by its number and its date.

 6.5     All invoices will be addressed to the designated Contract Coordinator
         at Tivoli Systems, Inc. and sent (with a copy to the Tivoli Technical
         Coordinator) to the following address:

         9442 Capital of Texas Highway
         Austin, Texas 78759

 6.6     Each party will be solely responsible for any taxes it incurs, directly
         or indirectly, associated with its performance of this Agreement.

                                       8

<PAGE>

 6.7     The payments defined in this Section fully compensate ObjectSpace for
         its performance under, and for the rights and licenses granted in, this
         Agreement.

 7.0     TESTING

 7.1     ObjectSpace will perform the following tests prior to each delivery of
         the Licensed Work:

         a.   component testing;
         b.   functional verification testing; and
         c.   compatibility testing.

         Upon Tivoli's request, the details of such testing will be mutually
         agreed to by the parties.

 7.2     ObjectSpace will provide to Tivoli concurrent with each delivery of the
         Licensed Work and Tools all test results, test scenarios, test cases,
         and test reports associated with the pre-delivery testing.

 7.3     Upon receipt of the Licensed Work by Tivoli, Tivoli may evaluate the
         Licensed Work for a period of 30 days and perform such tests as Tivoli
         deems appropriate to determine whether:

         a.       the Licensed Work meets the specifications described in the
                  Attachment entitled "Description of Licensed Work";
         b.       the Licensed Work executes repetitively within the system
                  environment described in the Attachment entitled "Description
                  of Licensed Work"; and
         c.       Tivoli can successfully execute to completion all functional
                  and system test scenarios developed by Tivoli.

         Tivoli's testing does not relieve ObjectSpace of its obligations under
         this Agreement. Tivoli has no obligation to identify errors.

 8.0     REPRESENTATIONS AND WARRANTIES

 8.1     ObjectSpace makes the following ongoing representations and warranties:

         a.       ObjectSpace has full legal rights to grant the rights granted
                  herein;
         b.       ObjectSpace is not under, and will not assume, any contractual
                  obligation that prevents ObjectSpace from performing its
                  obligations or conflicts with the rights and licenses granted
                  in this Agreement;
         c.       there are no liens, encumbrances or claims pending or
                  threatened against ObjectSpace, or to ObjectSpace's knowledge,
                  anyone else, that relate to the rights and licenses granted in
                  this Agreement;
         d.       except for patents and patent applications of a third party,
                  the warranty for which is set forth in Section 8.1.e (below),
                  neither the Licensed Work nor the Tools directly or indirectly
                  infringe any intellectual property rights of a third party;
         e.       to ObjectSpace's knowledge, neither the Licensed Work nor the
                  Tools directly or indirectly infringe any patents or patent
                  applications of a third party;
         f.       the Licensed Work and the Tools will perform in accordance
                  with the requirements set forth in this Agreement, including
                  the Attachment entitled "Description of Licensed

                                       9
<PAGE>

                  Work", and will conform to ObjectSpace's user
                  documentation, and any sales and marketing materials
                  provided by ObjectSpace;
         g.       the fully commented Source Code that ObjectSpace provides
                  corresponds to the current release or version of the Licensed
                  Work provided by ObjectSpace under this Agreement;
         h.       the Licensed Work supports the Year 2000; it is capable of
                  correctly processing, providing and receiving date data, as
                  well as properly exchanging accurate date data with all
                  products (for example, hardware, software and firmware) with
                  which the Licensed Work is designed to be used; and
         i.       neither the Licensed Work nor the Tools are contaminated by
                  harmful code.

         ObjectSpace will immediately provide Tivoli written notice of any
         change that may affect its representations and warranties.

 8.2     Except as provided above, anything either party provides to the other
         related to this Agreement is "AS IS", without warranty of any kind.

 9.0     INDEMNIFICATION AND LIABILITY

 9.1     BY OBJECTSPACE. ObjectSpace will be responsible for and will indemnify
         Tivoli, IBM, and any of their Subsidiaries, from any and all damages,
         settlements, costs, expenses and liabilities of any type whatsoever, if
         a third party makes a claim against Tivoli, IBM, or any of their
         Subsidiaries based on an actual or alleged:

         a.       failure by ObjectSpace, to the extent not caused by Tivoli, to
                  perform ObjectSpace's obligations under this Agreement;
         b.       breach of ObjectSpace's representations and warranties;
         c.       assertion or claim that a person or entity other than
                  ObjectSpace has Moral Rights in the Licensed Work;
         d.       failure by ObjectSpace to comply with government laws and
                  regulations; or
         e.       infringement by ObjectSpace, the Licensed Work or Tools of
                  patents, copyrights, trademarks, trade secrets, and other
                  intellectual property rights, except to the extent such a
                  claim is based solely on the combination, operation or use of
                  the Licensed Work with programs or data not supplied by
                  ObjectSpace, if such infringement would have been avoided but
                  for the combination, operation or use of the Licensed Work
                  with such other programs or data.

         Tivoli will:

         a.       promptly provide ObjectSpace notice of any such claim; and
         b.       allow ObjectSpace to control, and cooperate with ObjectSpace
                  in the defense of, the claim and settlement negotiations.

         Tivoli may participate in the proceedings at its option and expense.

         In addition, if an infringement claim appears likely or is made,
         ObjectSpace will:

                                       10
<PAGE>

CONFIDENTIAL INFORMATION HAS BEEN OMITTED FROM THIS DOCUMENT AND FILED
SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 406 OF
THE SECURITIES ACT OF 1933, AS AMENDED. ASTERISKS DENOTE THESE OMISSIONS.

         a.       obtain the necessary rights for Tivoli, IBM, and any of their
                  Subsidiaries and Distributors, and their respective customers
                  to continue to distribute, license, otherwise transfer and use
                  the Licensed Work on an uninterrupted basis and exercise all
                  rights granted in the Licensed Work and Tools; or
         b.       modify the Licensed Work and Tools at ObjectSpace's expense to
                  resolve the claim. This modified Licensed Work will comply
                  with the Attachment entitled "Description of Licensed Work."

         If ObjectSpace is not able to do either within a reasonable period of
         time, Tivoli may terminate this Agreement for ObjectSpace's breach.

         ObjectSpace's total liability for indemnification under this Section
         9.1 is limited to *.

 9.2     BY TIVOLI. If a claim is made against ObjectSpace by a third party
         based upon the distribution of Products provided for under this
         Agreement, Tivoli will be responsible for and will indemnify
         ObjectSpace from any and all damages, settlements, costs, expenses and
         liabilities of any type whatsoever regarding such third party claim,
         with the exception of those activities for which ObjectSpace bears
         responsibility under Section 9.1 of this Agreement, and provided
         ObjectSpace gives Tivoli prompt written notice of any such claim,
         together with the full authority for and cooperation with such a
         defense and any settlement negotiations.

         Tivoli's total liability for indemnification under this Section 9.2 is
         limited to *.

 9.3     In addition to any remedies specified in this Agreement, either party
         may pursue any other remedy it may have in law or in equity. Regardless
         of the type of claim, neither party is liable to the other for
         indirect, incidental, special, or consequential damages including, but
         not limited to, lost profits or revenues, under any part of this
         Agreement, even if informed that they may occur. This limitation does
         not apply to (a) ObjectSpace's liabilities for indemnity above, or (b)
         Tivoli's liabilities for indemnity above. Other than with respect to
         Tivoli's liability for indemnity above, Tivoli's total liability is
         limited to payments due to ObjectSpace under this Agreement; provided,
         however, that Tivoli's total liability with respect to a violation of
         the license grant set forth in Sections 5.1 or 5.3 is limited to *.

 10.0    TERM AND TERMINATION

 10.1    This Agreement begins on the Effective Date and has a term of one year
         unless terminated sooner under the terms of this Agreement; provided,
         however, that this Agreement will be extended automatically for
         additional one year periods upon the anniversary of the Effective Date.

 10.2    Either party may terminate this Agreement for the other's material
         breach by providing the breaching party with a written notice that
         describes the breach. The termination will become effective 45 days
         after receipt of the notice unless the breach is cured within that 45
         day period. However, if the breach (other than a breach for failure to
         deliver the Licensed Work) by its nature, cannot be remedied in 45
         days, but can be remedied in a reasonable time thereafter, the

                                       11
<PAGE>

         breaching party will take reasonable and diligent steps to remedy it,
         notify the other party of the action plan, progress towards completion,
         and complete such remedial action promptly. In such event, the notice
         period will be suspended while the breaching party takes these actions.

 10.3    Tivoli may, for its convenience, terminate this Agreement on 30 days'
         written notice to ObjectSpace. After the Agreement has been in effect
         for 4 years from the Effective Date, ObjectSpace may, for its
         convenience, terminate this Agreement on twelve months' written notice
         to Tivoli.

 10.4    Expiration of this Agreement does not affect any licenses granted in
         this Agreement for the Licensed Work or Tools. Termination of this
         Agreement does not affect any licenses granted in this Agreement for
         the Licensed Work or Tools delivered or due to Tivoli prior to the
         effective date of termination.

 10.5    Subject to Subsection 10.4, any provisions of this Agreement that by
         their nature extend beyond termination or expiration will survive in
         accordance with their terms. These include Section 5, "LICENSE GRANTS,"
         Section 8.0, "REPRESENTATIONS AND WARRANTIES," Section 9.0,
         "INDEMNIFICATION AND LIABILITY," and Section 12, "GENERAL." These terms
         will apply to either party's successors and assigns.

 11.0    COORDINATORS

 11.1    Any notice required or permitted to be made by either party to this
         Agreement must be in writing. Notices are effective when received by
         the appropriate coordinator as demonstrated by reliable written
         confirmation (for example, certified mail receipt or facsimile receipt
         confirmation sheet).

11.2     The Contract Coordinators responsible to receive all notices and
         administer this Agreement are:

         FOR TIVOLI:                                FOR OBJECTSPACE:

         Name: Howard Nicholas                      Name: Laurel Fitzgerald
         Title: Manager, Contract Services          Title: VP, Operations
         Address:  9442 Capital of Texas            Address:  14881 Quorum Dr.,
                   Hwy. No.                                   Suite 400
                   Austin, TX 78759                           Dallas, TX 75013
         Phone:    (512) 436-8616                   Phone:    (972) 726-4100
         Fax:      (512) 436-8461                   Fax:      (972) 663-9099

 11.3    The Technical Coordinators responsible to accept all Deliverables,
         coordinate all exchanges of confidential information, and administer
         and coordinate the technical matters associated with this Agreement
         are:

         FOR TIVOLI:                                FOR OBJECTSPACE:

                                       12
<PAGE>

         Name: Dave Hart                            Name: Chris Tarr
         Title: Manager                             Title: Product Manager
         Address:    9442 Capital of Texas          Address:   14881 Quorum Dr.,
                     Hwy. No.                                  Suite 400
                     Austin, TX 78759                          Dallas, TX 75013
         Phone:      (512) 436-8289                 Phone:     (972) 726-4100
          Fax:      (512) 794-9929                  Fax:       (972) 663-9099

         Technical Coordinators may propose, accept (by signature or initial),
         and implement technical changes to this Agreement that do not change
         dollar amounts or materially change Deliverables or the schedules of
         this Agreement.

11.4     A party will provide written notice to the other when its coordinators
         change.

12.0     GENERAL

12.1     INDEPENDENT CONTRACTOR. Each party is an independent contractor.
         Neither party is, nor will claim to be, a legal representative,
         partner, franchisee, agent or employee of the other except as
         specifically stated in the Subsection entitled "Copyright" below.
         Neither party will assume or create obligations for the other. Each
         party is responsible for the direction and compensation of its
         employees.

12.2     FREEDOM OF ACTION. Each party may have similar agreements with others.
         Each party may design, develop, manufacture, acquire or market
         competitive products and services, and conduct its business in whatever
         way it chooses. Tivoli is not obligated to announce or market any
         products or services. Tivoli does not guarantee the success of its
         marketing efforts. Tivoli will independently establish prices for its
         products and services.

12.3     RELIANCE. Neither party relies on any promises, inducements or
         representations made by the other or expectations of more business
         dealings, except as expressly provided in this Agreement. This
         Agreement accurately states the parties' agreement.

12.4     COMPLIANCE WITH APPLICABLE LAWS. Each party will comply with all
         applicable laws and regulations at its expense including, to the extent
         applicable, Executive Order 11246 on Equal Employment Opportunity, as
         amended, the Occupational Safety and Health Act of 1970, as amended,
         and the Americans With Disabilities Act of 1990, as amended. This also
         includes all applicable government export and import laws and
         regulations.

12.5     CONFIDENTIAL INFORMATION. The parties agree that information exchanged
         under this Agreement that is considered by either party to be
         confidential information will be subject to the terms of the CDA
         referenced on the first page of this Agreement and its Supplements. In
         addition, ObjectSpace will not provide Tivoli with any information
         which may be considered confidential information of any third party
         unless provided under the CDA. The obligations set forth in the CDA
         with regard to confidential information will not limit or preclude the
         exercise of the licenses granted in this Agreement.

12.6     COPYRIGHT. Any publication by Tivoli of the Licensed Works or a
         Derivative Work thereof will contain an appropriate copyright notice,
         as determined by Tivoli. Tivoli will retain any copyright notices
         ObjectSpace has on the Licensed Work.

                                       13
<PAGE>

         ObjectSpace will enforce and maintain its copyright protection in the
         Licensed Works. Tivoli is not responsible for enforcing and maintaining
         such copyright protection. However, ObjectSpace authorizes Tivoli to
         act as ObjectSpace's agent in the copyright registration of the
         Licensed Works. At Tivoli's request, ObjectSpace agrees to provide
         Tivoli reasonable assistance in registering any Product.

12.7     ORDER OF PRECEDENCE. If there is a conflict among the terms of this
         base License Agreement and its Attachments, the terms of this base
         License Agreement prevail over those of the Attachments, unless the
         parties expressly indicate in the Attachments that particular terms
         within the Attachments prevail. Terms in Tivoli's purchase orders and
         ObjectSpace's invoices are void.

12.8     HEADINGS. The headings of this Agreement are for reference only. They
         will not affect the meaning or interpretation of this Agreement.

12.9     COUNTERPARTS. This Agreement may be signed in one or more counterparts,
         each of which will be considered an original, but all of which together
         form one and the same instrument.

12.10    AMENDMENT AND WAIVERS. For a change to this Agreement to be valid, both
         parties must sign it. No approval, consent or waiver will be
         enforceable unless signed by the granting party. Failure to insist on
         strict performance or to exercise a right when entitled does not
         prevent a party from doing so later for that breach or a future one.

12.11    ACTIONS. Neither party will bring a legal action relating to the
         subject matter of this Agreement, against the other more than 2 years
         after the cause of action arose, except in the case of indemnification
         for infringement, in which case this period runs for 2 years after the
         award or settlement was made.

12.12    DISPUTE RESOLUTION. Both parties will act in good faith to resolve
         disputes prior to instituting litigation. Each party waives its rights
         to a jury trial in any resulting litigation.

12.13    GOVERNING LAW. This Agreement will be governed by the substantive law
         of the State of Texas applicable to contracts executed in and performed
         entirely within that State, without regard to choice of law principles,
         regulations, or statutes of this or any other jurisdiction. The United
         Nations Convention on Contracts for the International Sale of Goods
         does not apply. ObjectSpace will, upon written notice from Tivoli,
         submit to personal jurisdiction in any forum where Tivoli is sued for
         claims related to this Agreement.

                                       14

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