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IES Industries Inc.
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                                                                   EXHIBIT 10.18

                                    AGREEMENT

                                     BETWEEN

                               IES INDUSTRIES INC.

                                       AND

                          CONVERGENT GROUP CORPORATION

                               (REFERENCE NO. 109)

     This Agreement ("Agreement") is made and entered into by and between IES
Industries Inc., its authorized agents, employees, assigns, subsidiaries and
successors (CLIENT) and Convergent Group Corporation (CONSULTANT), and includes
as required the sale and maintenance of hardware manufactured by third parties
hereto ("Hardware"), the licensing and maintenance of third-party application
Software and operating system Software ("Software"), Custom Software generated
by CONSULTANT ("Custom Software"), certain associated documentation
("Documentation") and professional consultant services, required to provide
technical and management consulting expertise to CLIENT for custom application
software and custom application software systems as well as provide technical
services related thereto as more particularly set forth in the Schedules
attached hereto and incorporated herein by this reference (collectively
"Consultant Services").

1. SCOPE OF WORK: CONSULTANT agrees to provide CLIENT with Hardware, Software,
Custom Software, Documentation and Services as required to manage the
development and implementation of strategic systems and applications to support
CLIENT's corporate business objectives. These systems will be implemented in
phases in accordance with the requirements of Schedule A - Scope of Work
attached hereto and incorporated herein by this reference.

2. COSTS AND FEES: The total price for the implementation of Strategic Systems
and Applications for the Vision IMPACT project to support the CLIENT's business
objectives is $14,333,627 which is comprised of a Fixed Price Component as
defined in Schedule B and an Estimated component as defined in Schedule C.

     2.1  The estimated costs and fees are $5,070,340. These costs and fees
          include all estimated expenses for the project (expenses will be
          billed to CLIENT at cost plus a 3 1/2 percent administrative fee),
          application and system integration development. The description of the
          tasks associated with the estimated work effort is contained in
          Schedule A - Scope of Work and the billing terms for the estimated
          cost and fees are contained in Schedule C - Billing Terms for
          Estimated Work.

     2.2  The Firm Fixed cost and fees are $9,263,287 and include the delivery
          of an integrated AM/FM/GIS, Work Management, Distribution Management,
          Mobile Data Terminal, Conversion and the procurement of third-party
          Software. The description of the tasks associated with fixed work
          effort is contained in Schedule A - Scope of Work and the billing
          schedule for the fixed costs and fees is contained in Schedule B -
          Fixed Price Payments.

     2.3  The cost and fees set forth in Schedule B and Schedule C are exclusive
          of the following and CLIENT agrees to:

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          2.3.1 enter into a contract amendment for any CLIENT-directed change
                of scope in accordance with clauses 8.1 and 8.2 of this
                Agreement.

          2.3.2 all taxes, however designated, paid or payable by hereunder,
                exclusive of taxes based on the net income of CONSULTANT. If any
                charges under this Agreement are exempt from sales or use tax
                liability, CLIENT shall provide to CONSULTANT, upon execution of
                this Agreement, evidence of tax exemption acceptable to the
                relevant taxing authority.

3. PAYMENT TERMS: The Firm Fixed Cost and Fees payment schedule is contained in
Schedule B which is attached hereto and incorporated herein by this reference.
The Estimated Cost and Fees billing terms are delineated in Schedule C which is
attached hereto and incorporated herein by this reference.

     In the event that an invoice, or any undisputed portion of an invoice,
remains unpaid for 30 days after the date it is delivered to CLIENT the
CONSULTANT shall charge CLIENT interest at the rate of one percent per month or
at the maximum rate permitted by law, whichever is less, on the unpaid balance
of said invoice from the date of its delivery to CLIENT.

     All invoices will be addressed to:              Express Address:

     IES Utilities Inc.                              IES Utilities Inc.
     P.O. Box 351                                    200 First Street SE
     Cedar Rapids, IA  52406-0351                    Cedar Rapids, IA  52401

     Attn: Joe Harnish, Project Manager

     The CLIENT will make payments using Electronic Funds Transfers using the
bank and account information contained in Schedule D - Electronic Funds
Transfer.

4. CONSULTANT EMPLOYEES: CONSULTANT personnel shall be and will remain at all
times, during this Agreement, employees of CONSULTANT. CLIENT shall not be
responsible for any payments due CONSULTANT employees on account of, or in
connection with, this Agreement.

     CONSULTANT employees assisting CLIENT under this Agreement who are found,
in CLIENT's sole opinion, to be unsatisfactory for services to be performed
hereunder, shall be removed by CONSULTANT immediately upon receipt of written
notice from CLIENT. Such employee shall be replaced with another CONSULTANT
employee satisfactory to CLIENT as soon as possible.

5. NON-SOLICITATION OF EMPLOYEES: CLIENT agrees that CLIENT will not, during the
term of this Agreement and for a period continuing for 12 months after the
expiration or termination of this Agreement for any reason, directly or
indirectly solicit, influence, entice or encourage any person who is then or had
been within one (1) year of such action an employee of CONSULTANT to cease his
or her relationship with, or otherwise interfere with, disrupt or attempt to
disrupt any past, present or prospective relationship, contractual or otherwise,
between CONSULTANT and any of its employees.

     CLIENT further agrees that CLIENT will not, during the term of this
Agreement and for a period continuing for 12 months thereafter, hire or attempt
to hire, whether as an employee, consultant or otherwise any person who was
employed by CONSULTANT at any time during the term of this Agreement.

     CONSULTANT agrees that these terms are reciprocal with respect to
solicitation of CLIENT employees.

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     This Section shall survive termination or expiration of this Agreement for
any reason.

     If the scope of any restrictions contained in this Section is too broad to
permit enforcement of such restriction to its fullest extent, then such
restriction shall be enforced to the maximum extent permitted by law and CLIENT
hereby consents and agrees that the scope may be judicially modified in any
proceeding brought to enforce such restriction.

6. INSURANCE: During the term of this Agreement CONSULTANT shall provide and
maintain at its own expense the following kinds of insurance with limits of
liability as set forth below:

   Insurance                                  Limits of Liability

   Workmen's Compensation                     Statutory

   Commercial General Liability               $ 2,000,000

   Automobile Liability                       $ 1,000,000

   Excess Liability                           $10,000,000

     CONSULTANT has provided CLIENT with a certificate of insurance evidencing
the coverages required above and stating the policy numbers and inception and
expiration dates of all policies which is included as Schedule E - Certificate
of Insurance. This certificate of insurance shall also provide for 10-days prior
notice to the CLIENT in the event of cancellation of the policy.

7. INDEPENDENT CONTRACTOR STATUS: The parties to this Agreement are independent
contractors, and none of the provisions of this Agreement shall be interpreted
or deemed to create any relationship between such parties other than that of
independent contractors. Nothing contained in this Agreement shall be construed
to create a relationship of employer and employee, master and servant, principal
and agent, or coventurers between CLIENT and CONSULTANT or between CLIENT and
any employee of CONSULTANT, or between CONSULTANT and any employee of CLIENT.
CLIENT shall have no right to control or direct the details, manner, or means by
which CONSULTANT performs the services hereunder, provided that such services
shall be performed to the mutually agreed upon specifications contained in the
Schedules. In performing such services, CONSULTANT shall have no control over
the management authority with respect to the CLIENT or its operations.

8. SPECIAL CONDITIONS: The following conditions are incorporated into the
understandings associated with this Agreement:

     8.1  If the project scope of work is requested to be increased or changed
          by CLIENT in such a manner as to require additional labor or expenses,
          and CONSULTANT agrees to such changes, the parties will adjust both
          scope and costs and fees through a written amendment to this
          Agreement. Before the CONSULTANT performs any work outside the
          currently approved scope of work, the CONSULTANT must first receive
          written approval for a scope of work change from the CLIENT or
          otherwise waive any right for compensation for the work, unless the
          parties can mutually agree upon an equitable adjustment.

     8.2  CLIENT and CONSULTANT reserve the right to subsequently amend this
          Agreement to include additional services or associated products.
          Compensation for additional services or products will be as agreed by
          CLIENT and CONSULTANT and may be incorporated as Addenda to this
          Agreement. All work to be accomplished will be defined in written
          change

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          orders approved by the parties. The change orders will define the
          objectives to be addressed, the scope of services to be provided, the
          products to be delivered, the schedule to be met, special
          considerations (as appropriate), and a change order cost and fee
          estimate. The CONSULTANT will be reimbursed for expenses as provided
          in the change order.

     8.3  CONSULTANT's project team members will have the opportunity and
          authority to contact personnel at CLIENT directly in the performance
          of technical consulting duties.

     8.4  Other terms and conditions may be added to this Agreement in the
          future by mutual written consent of both parties.

     8.5  The parties will utilize a "zero-based" contingency method for changes
          where the CLIENT can request additional work while reducing the dollar
          equivalent from elsewhere in the Scope of Work. However, the CLIENT
          retains the option of increasing the contract firm fixed cost and
          fees. Any changes to the Scope of Work must be authorized in writing
          by the CLIENT's Project Manager.

9. EQUAL EMPLOYMENT: In performing the services hereunder, CONSULTANT agrees to
comply with all applicable local, state, and federal laws, regulations, and
orders relating to fair and equal employment opportunity practices and policies.

10. LICENSE AND SOFTWARE PROTECTION: Both CONSULTANT and CLIENT have developed
numerous proven proprietary materials which provide the methodologies for the
development of the Deliverables as delineated in Exhibit A - Scope of Work. The
use of these materials contributes to the cost-effectiveness of the project.
Both parties agree that the CONSULTANT and CLIENT shall own all such products,
materials, and methodologies that have been developed by that party, and that
CONSULTANT and CLIENT shall have or obtain no rights in such proprietary
products, materials, and methodologies of the other party, except pursuant to a
separate written agreement executed by the parties. The CONSULTANT and CLIENT
shall have the right to market, distribute, make derivative works from and sell
similar work to other companies without further notice to nor consent from the
other party. Nothing in this Agreement shall restrict or prohibit CONSULTANT's
or CLIENT's right to use concepts, techniques, and know-how used or developed in
the course of performing these services.

     CONSULTANT's work for CLIENT will include, among other things, customizing
CONSULTANT's code and proprietary methodologies as well as Third-Party Code.
CONSULTANT shall be the owner and retain exclusive copyrights of all deliverable
products created in connection with this Agreement and the media on which such
deliverable products are presented. CONSULTANT shall deliver to CLIENT the
Source Code and deliverable products in accordance with Section 2 of this
Agreement. CONSULTANT grants to CLIENT and all of its affiliates a perpetual
unrestricted, royalty-free license to reproduce and use, for Customer's internal
purposes only, any materials developed for CLIENT related to this Agreement, not
including Third-Party Software Licenses. CLIENT agrees not to exhibit,
distribute, or otherwise disclose any proprietary software, methods, or
materials to external or third parties without the prior approval in writing
from CONSULTANT.

     CLIENT shall be the Owner and retain exclusive copyrights of all products
created by CLIENT in connection with this Agreement and the media on which such
products are presented. CLIENT grants to CONSULTANT a perpetual unrestricted,
royalty-free license to reproduce and use such products for CLIENT's internal
business purposes only.

     All third-party Software licenses will be executed between the CLIENT and
the third-party Software vendor. Grants of licenses for all third-party Software
licenses will be transferred from the third party to the CLIENT in accordance
with a mutually acceptable license agreement.

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11. TRAINING: Subject to a mutually agreed to schedule, CONSULTANT will provide
training to the CLIENT in the use of the CONSULTANT Software listed in Schedule
A. The extent of such training, number of CLIENT personnel to be trained,
location of such training, and the appropriate costs and fees are reflected in
the Schedules.

12. HARDWARE MAINTENANCE. CONSULTANT may provide Hardware Maintenance to CLIENT.
The terms of the Hardware Maintenance will be in accordance with mutually agreed
upon Maintenance provisions.

13. CORE APPLICATION SOFTWARE MAINTENANCE: CONSULTANT will provide Software
maintenance to CLIENT after installation for two years; thereafter, maintenance
may be provided in a mutually agreed upon schedule and costs and fees between
CLIENT and CONSULTANT. The terms of the Software Maintenance will be in
accordance with mutually agreed upon maintenance provisions to be added at a
later date.

     13.1 CUSTOM SOFTWARE MAINTENANCE. CONSULTANT will provide custom
          application software maintenance after date of acceptance for two
          years; thereafter, maintenance shall be provided in a mutually agreed
          to schedule and costs and fees between CLIENT and CONSULTANT. The
          terms of the Software Maintenance will be in accordance with mutually
          agreed upon maintenance provisions to be added at a later date.

14. WARRANTY AND DISCLAIMER: CONSULTANT warrants that for 90 days after the
Installation Date (i) any Hardware which is procured for CLIENT by CONSULTANT
will be free from defects in materials and workmanship, (ii) any Software which
is procured for CLIENT by CONSULTANT will perform substantially in compliance
with the Documentation provided by CONSULTANT and (iii) the system integration
will meet the requirements contemplated by the Scope of Work, if any, as
demonstrated by the successful completion of the mutually agreed upon acceptance
criteria.

     CONSULTANT MAKES NO OTHER WARRANTIES OF ANY KIND EITHER EXPRESS OR IMPLIED,
INCLUDING, BUT NOT BY WAY OF LIMITATION, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE
HARDWARE, SOFTWARE, DOCUMENTATION, TECHNICAL INFORMATION, AND TECHNICAL
ASSISTANCE PROVIDED BY CONSULTANT PURSUANT TO THIS AGREEMENT.

15. LIMIT OF LIABILITY: CONSULTANT's liability in respect to services and
materials provided under this Agreement shall be limited to claims directly
attributable only to the failure of CONSULTANT's agents or employees to exercise
the degree of skill and performance normally exercised by duly qualified persons
performing similar functions. The amount of CONSULTANT's liability shall not
exceed $10,000,000. IN NO EVENT SHALL CONSULTANT, ITS EMPLOYEES, OFFICERS, OR
AGENTS BE LIABLE FOR LOSS OF EARNINGS, LOSS OF PROFITS, LOSS OF INTEREST, , OR
ANY OTHER SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGE, HOWEVER CAUSED.

16. NEGLIGENCE: Each party shall be responsible for willful misconduct and
negligent acts or omissions of its agents and employees. Each party shall
indemnify, hold harmless, and defend the other from and against all liabilities
for bodily injury and property damage caused by the willful or negligent act or
omission of the indemnifying party or its agents or employees. This Section
shall survive termination or expiration of this Agreement for any reason.

17. LIMITATION OF REMEDIES: CONSULTANT's entire liability and the CLIENT's
exclusive remedy, in respect to services and materials provided under this
Agreement with the exception of the Indemnity Agreement in paragraph 18, shall
be that CONSULTANT will, pursuant to applicable maintenance provisions, restore
the Hardware to working order if it should fail due to defects in materials and

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workmanship and correct the Application Software if it should fail to
substantially conform to the Documentation provided by CONSULTANT, during the
period in which CONSULTANT is providing maintenance services in accordance with
Sections 13 and 14 herein. However, if CONSULTANT is unable to cure such
defects, as CLIENT's exclusive remedy, CONSULTANT will grant CLIENT a refund for
the Hardware and/or Application Software involved, based upon its five-year
straight line depreciated value over the life of the product.

     17.1 Under this Section 17, CONSULTANT's entire liability for damages for
          any cause whatsoever, and regardless of the form of action, shall be
          limited to CLIENT's actual direct damages not to exceed the amount
          paid to CONSULTANT under this Agreement for the specific item that
          caused the damage or that is the subject matter of, or is directly
          related to, the cause of action. This limitation is not applicable to
          claims for patent, copyright and trade secret infringement which
          claims are covered by Section 18.

18. PATENTS, TRADEMARKS AND TRADE SECRET INFRINGEMENT INDEMNITY: CONSULTANT
shall defend, at its expense, any action brought against CLIENT to the extent
that it is based upon a claim that any Hardware, Software, or Documentation
infringes a patent, copyright, or violates any third party trade secret or
proprietary right and shall pay all costs and damages finally awarded against
CLIENT, provided that CONSULTANT is given prompt written notice of such claim
and is given information, reasonable assistance, and sole authority to defend or
settle the claim.

     18.1 If any such action is brought, or in CONSULTANT's opinion is likely to
          be brought, then CONSULTANT may at its election (i) obtain for CLIENT
          the right to continue using the Hardware, Software, or Documentation;
          (ii) replace or modify such so that it becomes noninfringing; or,
          (iii) if such remedies are not reasonably available, accept CLIENT's
          return of the Hardware, Software, or Documentation, and grant CLIENT a
          refund for the Hardware, Software, or Documentation involved.

     18.2 CONSULTANT shall have no obligation under this Section if the alleged
          infringement or violation is based upon the use of the Hardware,
          Software or Documentation in combination with other hardware,
          software, or documentation not furnished by CONSULTANT or if such
          claim arises from CONSULTANT's compliance with CLIENT's designs,
          specifications, or instructions, or from CLIENT's modification of the
          Hardware, Software, or Documentation.

     18.3 CONSULTANT shall have no liability for infringement of patents,
          copyrights, or violation of trade secrets or proprietary rights except
          as expressly provided in this Section.

19. TERMINATION: If either party shall at any time commit any material breach of
any covenant, or warranty under this Agreement (other than a breach of Section
9), and (i) shall fail to cure such breach within thirty (30) days of written
notice of such breach or (ii) if it is not curable within thirty (30) days of
written notice, shall fail to diligently commence to cure it within thirty (30)
days of notice, the defaulted party may at its option and in addition to any
other remedies to which it is entitled, terminate this Agreement by written
notice.

     19.1 Except as may be prohibited by the U.S. bankruptcy laws, in the event
          of either party's insolvency or inability to pay debts as they become
          due, voluntary or involuntary bankruptcy proceedings by or against a
          party hereto, or appointment of a receiver or assignee for the benefit
          of creditors, the other party may terminate this Agreement by written
          notice.

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     19.2 CONSULTANT reserves the right to terminate this Agreement upon written
          notice to CLIENT if CLIENT fails to make full payment of any invoice
          or portion of any invoice not in dispute within seventy (70) days from
          date of invoice.

     19.3 All license rights granted for which CLIENT has not paid in full shall
          cease upon any termination or cancellation of this Agreement. Within
          fifteen (15) days after termination of the license rights granted
          herein, or termination or cancellation of this Agreement for any
          reason, CLIENT agrees to certify to CONSULTANT in writing that the
          original and all copies of the Software and Documentation, in any
          form, have been destroyed.

     19.4 This Agreement may be terminated in whole or in part by the CLIENT for
          the CLIENT's convenience, provided that the CONSULTANT is given 1) not
          less than thirty (30) days written notice by certified mail, return
          receipt requested, of the CLIENT's intent to terminate and 2) an
          opportunity for consultation with the CLIENT prior to termination. If
          this Agreement is terminated for convenience, CONSULTANT will be paid
          its actual incurred fees and legally committed accrued costs,
          determined in accordance with generally accepted accounting principles
          consistently applied, provided that if compensation under this
          Agreement is on a Time and Materials basis, CONSULTANT will be
          compensated at the current CONSULTANT established billing rates for
          the time spent and materials purchased (or committed to be purchased)
          as of the date of termination plus any time reasonably required to
          demobilize CONSULTANT's services and the Time and Material charges
          associated with the termination expenses and collection thereof.

20. RISK OF LOSS. Should Hardware and/or Software initially be delivered to
CONSULTANT to be used for configuration testing and development efforts the Risk
of Loss during said period shall be with CONSULTANT and CONSULTANT as authorized
by CLIENT to install, maintain, and request warranty remedies from the
third-party Hardware or Software manufacturer during the period it is located at
CONSULTANT's facility. Risk of Loss to Hardware and Software shall pass to
CLIENT upon delivery of same to the CLIENT's installation site.

21. AUDIT REVIEW. CLIENT or its designated representative shall have access to
CONSULTANT's records maintained pursuant to this Agreement at the CLIENT's
premises or at CONSULTANT's regular place of business during normal business
hours to review, audit, and verify any information connected with this Agreement
required by CLIENT to determine the costs associated with non-fixed price Work
or cancellation of Work in progress, or to evaluate and monitor quality
assurance programs. CLIENT shall not have a right to audit in connection with
cost associated with (1) the firm portion of any fixed price Work, except for
cancellation of Work in progress or (2) CONSULTANT's published commercial rate
schedule or any agreed-upon rates for Time and Materials Work.

     Copies of any material shall be made for CLIENT at its request and
reasonable costs of reproduction shall be borne by CLIENT. Access to
CONSULTANT's records for the above audit purposes or for technical review
purposes relative to CONSULTANT's performance of the Work under this Agreement
shall be granted to CLIENT for three (3) years after acceptance of the Work or
cancellation of the Agreement.

22. CONFIDENTIALITY OF INFORMATION: The parties acknowledge that in the course
of this Agreement they will have access to, and/or will be in possession of,
Confidential Information of the other. "Confidential Information" shall mean
information regarded by that party as confidential, including, but not limited
to, information relating to its past, present, or future research, development,
or business affairs; future project purchases; any proprietary products,
materials, or methodologies; all items prepared for and submitted to CLIENT in
connection with work performed under this Agreement, including drafts

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and associated material; and any other information marked or, in the case of
information verbally disclosed, verbally designated as confidential at the time
of disclosure by that party.

     22.1 Each party shall hold in confidence, in the same manner as it holds
          its own confidential information of like kind, all Confidential
          Information of the other to which it may have access hereunder. Access
          to Confidential Information shall be restricted to those of each
          party's personnel with a need to know and engaged in a permitted use..
          CLIENT acknowledges that it is essential that CONSULTANT maintain its
          business advantage with respect to competitors or would-be
          competitors. For this reason, CLIENT shall not engage any third-party
          contractor to perform any services for CLIENT which would involve such
          contractor receiving any confidential information involve such
          contractor using any licensed software provided to CLIENT under this
          Agreement, unless such contractor shall have been approved in writing
          by CONSULTANT in its sole and absolute discretion.

     22.2 The foregoing shall not prohibit or limit either party's use of
          information including, but not limited to, ideas, concepts, know-how,
          techniques, and methodologies which (i) are or become generally
          available to and known by the public (other than as a result of an
          unpermitted disclosure directly or indirectly by the receiving party
          hereunder or its agents, representatives, or advisors), (ii) are or
          becomes available to it on a nonconfidential basis from a source other
          than the furnishing party or its affiliates, advisors, agents, or
          representatives, provided that such source is not and was not bound by
          a confidentiality agreement with or other obligation of secrecy to the
          furnishing party, (iii) has already been or is hereafter independently
          acquired or developed by it without violating any confidentiality
          agreement or other obligation of secrecy to the furnishing party, or
          (iv) is required by law or regulation to be disclosed, provided,
          however, that it shall give the furnishing party reasonable advance
          notice of such requirement so that the furnishing party may seek
          appropriate legal relief against such disclosure.

     22.3 The parties hereto agree and acknowledge that any such Confidential
          Information shall be considered for all purposes confidential and
          privileged information under any local, state, or federal law and such
          Confidential Information shall not be released pursuant to any local,
          state or federal act, law or statute concerning "freedom of
          information."

     22.4 This Section shall survive termination or expiration of this Agreement
          for any reason.

     22.5 CLIENT acknowledges and agrees that the provisions of this Section are
          essential to CONSULTANT and are reasonable and necessary to protect
          the legitimate interest of CONSULTANT and that the damages sustained
          by CONSULTANT as a result of a breach of the agreements contained
          herein will subject CONSULTANT to immediate, irreparable harm and
          damage, the amount of which, although substantial, could not be
          reasonably ascertainable, and that recovery of damages at law will not
          be an adequate remedy. Therefore, CLIENT agrees that CONSULTANT, in
          addition to any other remedy it may have under this Agreement or at
          law, shall be entitled to seek injunctive and other equitable relief,
          to prevent or curtail any breach of any provision of this Section.
          CONSULTANT agrees that prior to the initiation of any legal action,
          including without limitation, injunctive and other equitable relief,
          CONSULTANT will work with CLIENT to attempt to resolve any suspected
          breaches in confidentiality. In the event that a breach of
          confidentiality is determined to have occurred, CLIENT will have ten
          (10) days to cure such breach of confidentiality prior to CONSULTANT's
          initiation of legal action. CLIENT waives any right to the posting of
          a bond in the event of an issuance of a

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          temporary restraining order, preliminary injunction, upon the issuance
          of said order by a court of competent jurisdiction.

     22.6 All copyright and other intellectual property rights shall belong to
          CONSULTANT. CONSULTANT shall be entitled to retain a duplicate set of
          such deliverable products for its files.

23. RETURN OF INFORMATION: Upon termination or expiration of this Agreement for
any reason, both parties shall return any confidential information or
proprietary information belonging to the other party which is in their
possession, except that CONSULTANT shall be entitled to retain a duplicate set
of any deliverable products created in connection with this Agreement.

24. GOVERNING LAW: This Agreement will be governed by the laws of the State of
Iowa without regard to the conflicts of law principles of such state.

25. ENFORCEMENT EXPENSES: In the event of a breach or threatened breach of any
term or provision of this Agreement, the nonbreaching party shall be entitled to
all of its remedies available at law or in equity and in addition shall be
entitled to be reimbursed for all of its costs and expenses in enforcing this
Agreement, including, but not limited to, reasonable attorney's fees. This
Section shall survive termination or expiration of this Agreement for any
reason.

26. CAPTIONS AND HEADINGS: The captions and headings herein are for convenience
only and in no way shall be used in the interpretation or construction of this
Agreement.

27. WAIVER OF COMPLIANCE: Any failure by any party hereto to enforce at any time
any term or condition of this Agreement shall not be considered a waiver of that
party's right to later enforce each and every term and condition hereof.

28. NOTICES: Any notice required or permitted to be made or given to either
party hereto will be sufficiently made or given on the date of receipt or on the
refusal date as specified on the return receipt in the case of overnight courier
or certified mail, if sent to such party at its address set forth below, or such
other address as it shall designate by written notice to the other party. Notice
shall be deemed given on the date of delivery in the case of personal delivery.

       IES UTILITIES INC.                            Express Delivery Address

       IES Utilities Inc.                            IES Utilities Inc.
       P.O. Box 351                                  200 First Street SE
       Cedar Rapids, IA  52406-0351                  Cedar Rapids, IA  52401

       Attn:  Harold Rehrauer, Vice President, Field Operations

       Telephone:          (319) 398-7227
       Facsimile:          (319) 398-7680

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       Convergent Group Corporation
       6200 South Syracuse Way, Suite 200
       Englewood, CO 80111

       Attn:  Mr. Barry J. Kemble, Executive Vice President

       Telephone:    (303) 741-8400
       Facsimile:     (303) 741-8401

     All notices required or permitted hereunder shall be sufficient if given in
writing and if delivered personally, by overnight courier, or by certified mail,
return receipt requested, postage prepaid, addressed to the CONSULTANT or
CLIENT, as the case may be, at the addresses set forth above or at such other
address as such party shall have designated in the manner provided in this
Section. Notice shall be deemed given upon receipt, in the case of personal
delivery, or on the delivery or refusal date, as specified on the return
receipt, in the case of overnight courier or certified mail.

29. SEVERABILITY: If any provision of this Agreement or the application thereof
to any party or circumstance shall be declared invalid, illegal, or
unenforceable, the remainder of this Agreement shall be valid and enforceable to
the extent permitted by applicable law. In such event, the parties shall use
their best efforts to replace the invalid or unenforceable provision with
provision that, to the extent permitted by applicable law, achieves the purposes
intended under the invalid or unenforceable provision.

30. DISPUTE RESOLUTION ARBITRATION: Any and all disputes arising out of or in
connection with the execution, interpretation, performance, nonperformance, of
this Agreement or any other certificate, agreement, or other instrument between,
involving, or affecting the parties (including the validity, scope, and
enforceability of this arbitration agreement) shall be solely and finally
settled by a single arbitrator in accordance with the Commercial Rules of the
American Arbitration Association (the "Rules"); provided, however, that in the
event of conflict between the Rules and the terms of this Agreement, the terms
of this Agreement shall govern. The place of arbitration shall be Cedar Rapids,
Iowa, and the law applicable to the arbitration procedure shall be the Federal
Arbitration Act (9 USC P2). To commence arbitration of any such dispute, the
party desiring arbitration shall notify the other party in writing in accordance
with the Rules. In the event that the parties fail to agree on the selection of
an arbitrator within fifteen (15) days after the delivery of such notice, the
arbitrator shall be selected by the American Arbitration Association upon the
request of either party.

     The parties agree that the award of the arbitrator shall (1) be the sole
and exclusive remedy between them regarding any claims, counterclaims, or issues
presented to the arbitrator; (2) be final and subject to no judicial review; and
(3) be made and shall promptly be payable in U.S. dollars free of any tax,
deduction, or offset. The parties further agree that any costs, fees, or taxes
incident to enforcing the award shall, to the maximum extent permitted by law,
be charged against the party resisting such enforcement. The parties hereto
agree that judgment on the arbitration award will be nonbinding.

     Each party shall, except as otherwise provided herein, be responsible for
its own expenses, including legal fees, incurred in the course of any
arbitration proceedings. The fees of the arbitrator shall be divided evenly
between the parties.

     CONSULTANT shall carry on and be paid for the services not in dispute and
maintain the schedule for services during any arbitration or litigation
proceedings, unless otherwise agreed by CONSULTANT and CLIENT in writing.

Proprietary and Confidential                                       UGC/FGM1034P
                                      -10-
<PAGE>   11
IES Industries Inc.
Convergent Group Corporation Agreement
-------------------------------------------------------------------------------

31. SCHEDULES: The Schedules attached hereto form a part of and are incorporated
herein by this reference.

    Schedule A:         Scope of Work
    Schedule B          Fixed Price Payments
    Schedule C          Billing Terms for Estimated Work
    Schedule D          Electronic Funds Transfer
    Schedule E          Certificate of Insurance
    Schedule F          Project Baseline Schedule

32. GENERAL: This Agreement, and any license granted therein, may not be
assigned or transferred by CLIENT in whole or in part, either voluntarily or by
operation of law, without the prior written consent of the CONSULTANT.

     32.1 Prior to delivery, CONSULTANT reserves the right, at no additional
          charge to CLIENT, to make substitutions and modifications in the
          design and/or specifications of Hardware, Software or Documentation
          provided hereunder; provided that such substitutions or modifications
          do not materially and adversely affect performance or function and
          CONSULTANT obtains CLIENT agreement to the substitution prior to the
          substitution taking place.

     32.2 It is understood that at times unavoidable delays result from causes
          which may reasonably be presumed to be beyond the control of
          CONSULTANT, such as: Acts of providence, floods, fortuitous events,
          unavoidable (from the standpoint of CLIENT) accidents, riots, strikes,
          and lock outs. Should the progress of the Work (including delivery of
          equipment, goods and materials) be or seem to be delayed at any time
          for such causes, CONSULTANT shall at once notify CLIENT in writing of
          the occurrence, in order that a record of the same may be made. Should
          it be decided by CLIENT that the delay was unavoidable, a
          corresponding extension of time for the completion of the Work may be
          allowed by CLIENT not to exceed the actual number of days such
          unavoidable delays accrued, but it is distinctly understood that
          should CONSULTANT fail or neglect to notify CLIENT as above provided,
          such omission shall be construed as a waiver of all claims and rights
          to extension of time for the completion of the Work on account of such
          delays. Both parties shall in good faith use such effort as is
          reasonable under all the circumstances known to that party at the time
          to remove or remedy the cause(s) and mitigate the damages.

     32.3 The parties have agreed that this contract may be amended at a future
          date to include an incentive compensation provision.

     32.4 Neither party shall issue any news release, public announcements, or
          advertisements of any portion of the content of this Agreement without
          the other party reviewing such announcement prior to such release.

     32.5 No action, regardless of form, may be brought by either party after
          the Iowa Statute of Limitations on such action has expired.

     32.6 CLIENT agrees that it will not export outside of the United States of
          America any Hardware, Software or Documentation provided hereunder
          without the express written prior consent of CONSULTANT.

     32.7 Time is of the essence in this contract.

Proprietary and Confidential                                       UGC/FGM1034P
                                      -11-

<PAGE>   12
IES Industries Inc.
Convergent Group Corporation Agreement
-------------------------------------------------------------------------------

     32.8 This Agreement and the Schedules hereto constitute the entire
          agreement between the parties and shall supersede all proposals or
          prior agreements, oral or written, and all other communications
          between the parties relating to the subject matter of this Agreement.
          If CLIENT issues a purchase order, memorandum or other instruments
          covering the goods or services provided under this Agreement, it is
          agreed that such document is for CLIENT's internal purposes only
          unless it is accepted in writing by CONSULTANT, in which case all
          terms and conditions contained therein which are additional to or
          inconsistent with this Agreement shall be of no force and effect. The
          Agreement shall not be varied other than by an instrument in writing
          of subsequent date hereto, executed by the duly authorized
          representatives of both parties. The Agreement shall be construed in
          accordance with, and its performance governed by the laws of the State
          of Iowa excluding its laws on conflict of law.

     IN WITNESS WHEREOF, the parties have executed this Agreement effective the
21st day of August 1996.

IES INDUSTRIES INC.

By:   /s/ LEE LIU
   ------------------------------------------

Name:     Lee Liu

Title:    Chairman of the Board, President & Chief Executive Officer

Address:  200 First Street SE

City:     Cedar Rapids              State: IA                Zip Code: 52401

CONVERGENT GROUP CORPORATION

By:  /s/ GLENN E. MONTGOMERY
   --------------------------------------------(Authorized Signature)

Name:    Glenn E. Montgomery

Title:   CEO

Address: 6200 S. Syracuse Way, Ste. 222

City:    Englewood                 State:  CO                Zip Code:  80111

Proprietary and Confidential                                       UGC/FGM1034P
                                      -12-
<PAGE>   13
                                                                   EXHIBIT 10.18

SCHEDULE A: SCOPE OF WORK

The scope of work for IES Industries Inc. and its subsidiary IES Utilities,
hereinafter called IES, is to support the IES Vision IMPACT project. The scope
presented herein discusses the tasks that will be used to manage the development
and implementation of strategic systems and applications to support IES'
corporate business objectives. Work Management System (WMS), Distribution
Management System (DMS), Automated Mapping/Facilities Management/Geographic
Information System (AM/FM/GIS), and Computer Aided Dispatch/Mobile Data Terminal
(CAD/MDT) applications will be developed in synchronization with a fast-track
network conversion to support IES' need for full production Rapid Response, T &
D Planning, Maintenance, and Construction systems. Integration with gas and
electric network analysis software, in support of System Planning, is also
included as a project deliverable. The systems will be implemented in phases
that include a demonstrable Proof-of-Concept capabilities phase to verify the
systems' usefulness and functionality, a core functionality production phase to
roll out core system functionality, and an extended functionality phase to
provide additional non-core functionality. Convergent Group proposes a scope of
work consisting of the following 13 major tasks and assumption section.

TASK 1: PROJECT MANAGEMENT AND SYSTEMS INTEGRATION CONSULTING
--------------------------------------------------------------------------------

Convergent Group will perform the role of owner's representative and General
Project Manager and Integration Consultant on IES' System Integration project.

Convergent Group will begin by finalizing the detailed project work plan and the
project work schedule with the IES Project Manager and subcontractors.
Convergent Group will assist in establishing individual start-up assignments,
participation requirements, and project control/review/approval procedures.
Along with the IES Project Manager, Convergent Group will refine monthly the
detailed project implementation schedule that will serve as a guide for the
remainder of the project planning and work completion process.

Convergent Group will provide ongoing project management and coordination,
including vendor coordination and management, day-to-day support, scheduling of
project meetings with the Project Team or vendors, status reports, and other
project management/support activities. Convergent Group will share

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                             A-1
Vision IMPACT Project

<PAGE>   14
SCHEDULE A: SCOPE OF WORK

project plan and schedule updates with the IES Project Team on a regular basis
to support internal project management efforts.

Task 1 will include the following activities to support deliverables:

o        Define Denver to Cedar Rapids communications link requirements

o        Start-up assignments

o        Participation requirements

o        Vendor accounting and billing

o        Project coordination and management

o        Vendor coordination and management

o        Maintenance of project work plans and schedule

o        Ongoing professional assistance

o        Biweekly progress reports and monthly review meetings with the IES
         Project Team

o        Quarterly executive review meetings with IES and vendor senior
         management

DELIVERABLE PRODUCTS FOR TASK 1

o        Kickoff meeting

o        Biweekly and monthly status reports

o        Quarterly project sponsor status briefings

o        Ongoing project management support

o        Ongoing vendor management

o        Monthly project schedule updates

o        Requirements for Denver to Cedar Rapids communications link

TASK 2: EMPLOYEE COMMUNICATIONS
--------------------------------------------------------------------------------

Convergent Group's experience with large systems integration projects has shown
that user community involvement early in the process is key to employee
acceptance and to the ultimate success of the project. Our communications
professionals will meet with IES to develop the Employee Communications Program,
which will include the following activities.

o        CONDUCT INTERVIEWS AND RESEARCH

Convergent Group will interview selected members of the IES Project Team, the
Manager of Communications, and the Manager of Human Resources to ascertain
communications requirements during the project. Convergent Group will also
evaluate current

--------------------------------------------------------------------------------
A-2                             CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   15
                                                       SCHEDULE A: SCOPE OF WORK

         IES communications vehicles for appropriate use in conveying
         information about Vision IMPACT to target audiences.

o        FORM COMMUNICATIONS TEAM

         Convergent Group will work with IES to identify a Communications Team
         of two key IES representatives, including a representative of the IES
         Communications Department and a designated member of the Project Team,
         to work with Convergent Group and to facilitate the Vision IMPACT
         project's ongoing employee communications activities.

o        DEVELOP EMPLOYEE COMMUNICATIONS PROGRAM

         Using the information gathered during the previous subtasks, Convergent
         Group will develop an Employee Communications Program for the duration
         of the Vision IMPACT project. Included in the program will be key
         project messages, target audiences, specific communications vehicles
         and tactical activities, a timeline, and an evaluation component.

o        MANAGE IMPLEMENTATION OF EMPLOYEE COMMUNICATIONS PROGRAM

         Upon IES approval of the program, Convergent Group will manage and
         advise the IES Communications Team on program implementation. The IES
         team will perform all internal activities associated with the program
         implementation. Convergent Group will convene on-site for monthly
         meetings with the IES Communications Team to discuss ongoing program
         strategy. Convergent Group will provide action item reports from these
         monthly meetings and quarterly status reports of the Employee
         Communications Program.

DELIVERABLE PRODUCTS FOR TASK 2

o        Employee Communications Program Report

o        Employee Communications Program implementation management and
         advisement

o        Monthly meetings

o        Quarterly status reports

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                             A-3
Vision IMPACT Project

<PAGE>   16
SCHEDULE A: SCOPE OF WORK

TASK 3: MANAGEMENT OF HARDWARE PROCUREMENT
--------------------------------------------------------------------------------

Convergent Group will define the minimum detailed hardware requirements and
specifications for all hardware to support each phase of development and
rollout. Convergent Group will work closely with IES to comply with the existing
IES hardware infrastructure and standards. Hardware vendor contracts will be
negotiated and executed by IES. IES will work closely with Convergent Group to
optimize the use of currently existing hardware and vendor purchase agreements;
to support effective delivery and configuration; and to establish an effective
parallel hardware configuration at Convergent Group office for efficient system
development and trouble shooting.

DELIVERABLE PRODUCTS FOR TASK 3

o        Hardware configuration specifications for each phase of system

TASK 4: MANAGEMENT OF SOFTWARE PROCUREMENT
--------------------------------------------------------------------------------

Convergent Group will define the detailed software licensing requirements and
specifications to support each phase of development and rollout, draft and
implement all software vendor contracts and purchase orders, and purchase the
AM/FM/GIS, CAD/MDT, DMS, and WMS software as specified in the Strategic
Implementation Plan. Convergent Group will work closely with IES to comply with
existing IES software standards. Software vendor contracts negotiated by
Convergent Group will include license acquisition, implementation services (if
required), and maintenance. Convergent Group will work closely with IES to
optimize the use of currently existing software and vendor purchase agreements
for RDBMS and OS software.

DELIVERABLE PRODUCTS FOR TASK 4

o        Configuration specifications for each phase of system

o        Vendor contract negotiations and management

o        Software license agreements

o        Software maintenance agreement

TASK 5: DATA MODELING
--------------------------------------------------------------------------------

The data modeling task will consist of all activities required to design and
implement a data model to support the IES Vision IMPACT project. The data
designs for each core application that

--------------------------------------------------------------------------------
A-4                             CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   17
                                                       SCHEDULE A: SCOPE OF WORK

are part of the Convergent Group integrated product suite, except AM/FM/GIS,
are expected to vary little from the core product specifications in order to
keep implementation costs and schedule times to a minimum and to meet the
proposed schedule. Convergent Group and IES will work diligently to adapt to the
core product models, where possible, to accommodate the IES business process.
The task is divided into three basic groups of activities: conceptual/logical
data modeling, physical data modeling, and global system architecting.

o        CONCEPTUAL/LOGICAL DATA MODELING

         The combined conceptual/logical (herein referred to as logical)
         database design provides one data model that will address functionality
         across the entire Vision IMPACT product suite, and it describes the
         overall logical structure of an organization's data, independent of the
         specific database platform. Convergent Group's data modeling
         methodology defines the logical model as including the entities, the
         relationships between the entities, and the descriptions and primary
         keys for the entities. The logical database model (LDM) builds upon
         these relationships to create attribute, domain, annotation, and
         spatial placement specifications (if applicable); to determine
         integrity constraints; to map to applications; and to document data
         privileges and responsibilities. Convergent Group and IES need to work
         diligently at adapting to the core product logical models. In fully
         developing the LDM, Convergent Group will perform the following
         activities to support the deliverables:

      -  Review and refine IES integrated system requirements

      -  Review product database designs for applicability

      -  Collect IES symbology specifications

      -  Review draft LDM with IES

o        PHYSICAL DATA MODELING

         Convergent Group will provide a detailed physical database model (PDM)
         by transforming the LDM into a physical representation of the data
         specifying table and column names, data types, file and record formats,
         and indices as required by IES' platform. The PDM will identify the
         relationships and constraints to be maintained by the database and
         those to be implemented in selected applications.

         Convergent Group will generate a draft PDM and conduct an on-site
         workshop with the IES Project Team to comprehensively

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                             A-5
Vision IMPACT Project

<PAGE>   18
SCHEDULE A: SCOPE OF WORK

         review the PDM. The final PDM will be supplied to IES in a mutually
         acceptable format to accommodate long-term data model maintenance.

o        GLOBAL SYSTEM ARCHITECTURE

         As part of the global system architecture design, Convergent Group will
         define the design and architecture of the proposed hardware and
         software technologies (to support the integrated suite only). Workshops
         and teleconferences will be utilized as necessary to complete the
         global architecting, Tasks include the following:

       - Refine current business process/integrated system model

       - Resolve process model issues identified during the SIP workshop

       - Define data distribution requirements

       - Define security requirements

       - Refine system architecture

       - Develop the data communications plan, including:

         -  Local communications requirements

         -  Remote access requirements

         -  Outside access requirements

         -  Infrastructure plan

       -  Finalize configuration design document

         As part of developing a map of the system architecture illustrating the
         physical connectivity between components, Convergent Group will
         identify hardware/software components, develop a computer system
         network diagram, and develop a logical architecture diagram
         illustrating functionality.

DELIVERABLE PRODUCTS FOR TASK 5

o        Workshop to refine mapping of integrated suite applications to
         processes

o        Draft LDM for integrated suite

o        Final logical database model

o        Physical database model

o        Physical model review workshop

o        Global system architecture document

--------------------------------------------------------------------------------
A-6                             CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   19
                                                       SCHEDULE A: SCOPE OF WORK

TASK 6: DEVELOPMENT OF VISION IMPACT ASSET DATABASE
--------------------------------------------------------------------------------

Convergent Group will construct the IES Vision IMPACT project asset database by
managing and coordinating the IES Vision IMPACT project full implementation data
conversion activities. For the geographical data, activities will range from
developing a conversion plan with IES to delivering the completed,
quality-assured production data delivery as specified in the Strategic
Implementation Plan. For the data to support other systems, Convergent Group
will assist IES in designing the data and managing the creation of the data in
accordance with schedule requirements. Data will consist of employees,
contractors, materials, standard designs, work type definitions, and other
nongraphic data required to support the applications. All data conversion and
creation will be implemented in a pilot and production phase. The pilot phase is
used to identify any problems or oversights in the data model, data sources, and
conversion process in supporting the IES business process.

The following activities apply to AM/FM/GIS data only.

o        DEVELOP DETAILED CONVERSION SPECIFICATION

         Convergent Group will begin by detailing a plan to serve as a guideline
         during all conversion activities. Items that will be addressed in the
         plan and subsequent specification include the following;

     -   Acquisition of landbase data sets from external agencies or new digital
         orthophotography to augment existing landbase data in densely populated
         areas. This is assumed to be an area of up to 320 square miles with a
         landbase acquisition cost of $180,000 included in the fixed fee.

     -   Field inventory plan

     -   Data source matrix

     -   Accuracy requirements

     -   Deliverable products

     -   Schedule for data conversion

     -   Optimal data conversion methodology and strategy

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                             A-7
Vision IMPACT Project
<PAGE>   20
SCHEDULE A: SCOPE OF WORK

o        DEVELOP SYMBOLOGY, ANNOTATION, AND PLACEMENT SPECIFICATIONS

         As a part of the conversion specification, Convergent Group will
         develop graphic symbology, annotation, and placement specifications
         based on the hybrid North Zone/South Zone symbol set that has already
         been developed at IES. Further refinement of the hybrid symbol set may
         require considerable input and assistance from IES mapping experts. The
         symbol set will be produced in accordance with the physical data model
         (PDM) developed under Task 5.

O        DEVELOP SCRUB AND CONTROL PROCEDURES

         Convergent Group will develop a Scrub and Control Procedures Manual
         (documentation and data preparation prior to conversion), outlining the
         scrub requirements for the integrated system pilot project.

         IES will be responsible for performing the necessary data scrub.

o        DEVELOP QUALITY ASSURANCE/QUALITY CONTROL (QA/QC) PROCEDURES

         Convergent Group will develop a detailed Data Conversion Acceptance
         Testing Procedures Document. This document will serve as a handbook for
         staff performing the actual acceptance testing. The document will also
         communicate to the data conversion contractor the procedures being used
         by IES to ensure quality data conversion. The document will evolve to
         match changes in data conversion procedures and specifications and will
         include specific sections for landbase and facilities data types.
         Convergent Group will also identify critical and non-critical error
         types and acceptance and rejection criteria for visual inspection of
         delivered conversion products. Convergent Group will review the QA
         procedures with the Project Team and work with the Team to manually
         check data to assure quality.

O        DEVELOP QA/QC SOFTWARE

         Convergent Group will develop software to support the QA/QC testing.
         The software will perform checks to ensure the converted data's
         conformance to valid values, ranges of values, and data types. This
         software will be developed under the development release methodology
         discussed in Task 8.

--------------------------------------------------------------------------------
A-8                             CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   21
                                                       SCHEDULE A: SCOPE OF WORK

o        CONDUCT QA/QC TESTING ON DELIVERED DATA

         Convergent Group will take delivery of the converted data for the
         project, log and track data deliveries, and conduct quality
         assurance/acceptance testing on the delivered data in accordance with
         IES' Data Conversion Acceptance Testing Procedures. Convergent Group
         will perform both manual and simple workstation procedures during the
         project for QA/QC checking of delivered digital graphic data and
         nongraphic (attribute) data. Convergent Group will ensure all converted
         data is loaded correctly into IES' database.

         For the pilot, Convergent Group will perform quality checks on 100
         percent of the data. Subsequent to the pilot, Convergent Group will
         employ a statistical sampling method to check the data at a mutually
         acceptable sampling level. Acceptance or rejection will be based on a
         sample of the data rather than checking 100 percent.

         Quality assurance and acceptance testing will be conducted on both the
         landbase and facilities data including the data that is migrated from
         CableCad. Convergent Group will document in matrix format every
         decision and assumption used in the QA/QC process for each data
         element.

         Subsequent to performing the QA testing on the first delivery of data,
         Convergent Group will conduct an on-site meeting at IES with the
         conversion contractor to discuss the results of the initial testing and
         provide guidance for the conversion of the remaining data. This meeting
         will serve as an opportunity for IES staff to give approval on the
         conversion process and the hardcopy appearance of the maps.

         Though Convergent Group will work diligently to assure delivery of a
         quality AM/FM/GIS database, the responsibility for final data review
         and approval lies with the experts at IES who are most familiar with
         the facilities information, Additionally, IES must understand that the
         conversion process will not fix incorrect data; the process will,
         however, work toward achieving the accurate transfer of source data
         into the target AM/FM/GIS database.

o        CONVERT LAND AND FACILITIES

         Convergent Group will contract with the necessary contractor(s) to
         provide the land and facilities conversion of IES' pilot and full
         production areas. Convergent Group will manage the conversion
         contractor(s) to assure successful delivery within the allotted time,

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                             A-9
Vision IMPACT Project

<PAGE>   22
SCHEDULE A: SCOPE OF WORK

         as well as to provide QA/QC data checking. Convergent Group will
         monitor and evaluate the conversion contractor's processes and
         procedures to ensure compliance with the conversion specifications.

o        CONDUCT CONTRACT NEGOTIATIONS WITH CONTRACTORS

         Convergent Group representatives will conduct contract negotiations
         with the conversion contractor(s). This process will ensure that IES'
         requirements are fully addressed in the contracts/specification
         documents.

o        REVISE PROPOSED PROCEDURES IMPLEMENTED DURING PILOT

         After the pilot conversion, Convergent Group will update/finalize all
         of the proposed procedures implemented during the pilot, including the
         scrub, QA/QC, and data delivery procedures. Convergent Group will also,
         as a development release in Task 9, create more complex data integrity
         software specifications and develop the QA software to be used at the
         workstation by Convergent Group and IES when performing QA/QC tests as
         specified in the conversion specification.

o        PROVIDE ONGOING CONVERSION CONTRACTOR MANAGEMENT AND DATA DELIVERY

         Convergent Group will continue to provide all conversion contractor
         management and coordinate data delivery, acceptance, and QA/QC of data
         with the IES Project Team as specified in the conversion specification.
         Convergent Group will not make data available for production use at IES
         until it has passed QA/QC checks by Convergent Group and IES QA/QC
         staffs.

         For the non-AM/FM/GIS data required to support the other products in
         the integrated suite (e.g., compatible units for WMS), Convergent Group
         will assist in designing the data where applicable and managing the
         data creation to keep the project on schedule. IES project team
         expertise and staff will be required to create and maintain the data.

--------------------------------------------------------------------------------
A-10                            CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   23
                                                       SCHEDULE A: SCOPE OF WORK

DELIVERABLE PRODUCTS FOR TASK 6 (APPLIES TO AM/FM/GIS DATA)

o    Data conversion specification including:

         -  Field data collection specification (if necessary)

         -  Symbology, annotation, and placement specification

o    Scrub and Control Procedures Manual (pilot and production)

o    Data Conversion Acceptance Testing Procedures Document (pilot and
     production)

o    QA/QC software (development release under Task 8)

o    Manual and automated data quality assurance checks on 100 percent of
     pilot data

o    Manual and automated data quality assurance checks on samples of
     production-area data

o    Pilot data installations on IES' system

o    Production data installations on IES' system

o    Contracts negotiation and implementation

o    Ongoing conversion contractor management

o    Converted pilot land and facilities network

o    Converted production land and facilities network

o    Management of nongeographic data creation activities (e.g., compatible
     units for WMS)

TASK 7: DATA MIGRATION
--------------------------------------------------------------------------------

Convergent Group will migrate all current CableCad data into the data model
defined in Task 5 on the GDS platform. This data migration will be performed
based on a Convergent Group developed detailed plan for migrating the existing
graphic and nongraphic AM/FM/GIS data in CableCad format to the Convergent Group
suite of applications.

DELIVERABLES PRODUCTS FOR TASK 7

o    Data migration plan

o    Assist IES in developing the CableCad retirement plan

o    Current CableCad data migrated to new data model on GDS platform

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                            A-11
Vision IMPACT Project

<PAGE>   24
SCHEDULE A: SCOPE OF WORK

TASK 8: PROOF-OF-CONCEPT CORE PRODUCT CONFIGURATION AND INTEGRATION
--------------------------------------------------------------------------------

The Proof-of-Concept (POC) core product configuration and integration task will
perform all the activities associated with making POC product and integration
functionality available to IES users for review. Development in this phase will
consist mainly of product configuration and minor customization as well as some
integration functionality. Product customization must be kept to a minimum to
meet the project schedule. The functionality provided will be considered
pre-production state; production state functionality will be delivered in Task
9. POC applications and integration will provide the core functionality, or a
subset of all functionality of the integrated suite, that will work on most data
or business scenarios. The characteristic that makes this development POC level
functionality is that most, but not all, business or data scenarios will be
handled appropriately by the functionality developed by this task. The
applications will be completed, or "productionized," during Task 9. Key goals of
the POC system are to rapidly provide user input into the capability of the
application to support the IES business process and to identify unique IES
business scenarios or data instances that need to be addressed by the
application as well as accommodate the input of IES-created data such as
standard designs.

o        DEVELOPMENT RELEASES

         The process by which Convergent Group and IES will prioritize and
         define the functionality to be delivered in the POC phase will be
         through the use of development releases. Development releases are
         small-scale scopes of work for applications or modules within
         applications. They are a necessity to rapid implementation because they
         do not require that all detailed specifications be done before
         beginning development. Development releases also allow greater
         development flexibility in prioritizing application development by
         incorporating user feedback and modifications during the development
         process before a great deal of development dollars are spent on low
         priority functionality. Based on Convergent Group experience, the
         development pool of dollars ESTIMATED to be adequate to fund all
         required development activities is established and drawn upon by IES
         for applications development and integration. This allows IES to
         evaluate all incremental development from a cost-benefit standpoint.

--------------------------------------------------------------------------------
A-12                            CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   25
                                                       SCHEDULE A: SCOPE OF WORK

o        DEVELOPMENT PROCESS

         All development, whether it be configuration, customization,
         applications development, or integration as a part of Tasks 8, 9, or
         10, will be performed or managed by Convergent Group and will follow
         the same process as described below:

1.       Convergent Group and IES will draft a development release specifying
         the scope, design, and fixed fee of the development to be delivered,

2.       IES will authorize construction to proceed.

3.       Code development will begin.

4.       IES will review prototype development with Convergent Group in a one-
         to two-day workshop (typically 1 to 3 months after code development
         begins).

5.       Application code development will continue based on IES review.

6.       Convergent Group will perform code testing (unit testing) and system
         level testing prior to delivery. This will assure that the application
         performs to the test criteria specified in the development release
         document.

7.       Application will be delivered to IES for testing and acceptance (Task
         12).

         The POC development will also result in modifications and enhancements
         to the applications and integration that will be developed as a part of
         Task 9 development releases.

o        POC FUNCTIONALITY EXPECTED TO BE AVAILABLE IN THIS PHASE

         While the functionality delivered is ultimately determined by IES
         through development release authorizations, the specific applications
         and integration that would be reasonably expected to be developed for
         the POC phase would include the following functionality at a POC level.
         Some of these functions may overlap, and certain components must reside
         in multiple places. In cases where functionality is denoted as a sample
         subset, one or two samples will be provided.

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                            A-13
Vision IMPACT Project

<PAGE>   26
SCHEDULE A: SCOPE OF WORK

AM/FM/GIS (POC)

Automated Mapping (POC)

o        Landbase Maintenance

o        Facilities Maintenance

o        Standard Map Creation (sample subset - expanded in subsequent phase)

o        Ad Hoc Map Creation

o        Appended Image Viewing

Facilities Queries (POC)

o        Query and Locating

o        Standard Report Generation (sample subset - expanded in subsequent
         phase)

Work Design (POC)

o        Job Design

o        As-Built Information Posting

o        Construction Print Generation

QC Tools (POC)

o        Data Integrity Checks (sample subset - expanded in subsequent phase)

DMS (POC)

Outage Management (POC)

o        Outage Analysis

o        Add, Change, and Merge Outages

o        Outage Reports/Graphics (sample subset)

o        Outage Status

o        Outage Notification/Callback Lists

Distribution Operations (POC)

o        Identify Key/Critical Customers

o        Abnormal Configuration Display

CAD/MDT (POC)

Order Scheduling and Planning (POC)

o        Workload Resource Analysis

o        Appointment Scheduling/Tracking

--------------------------------------------------------------------------------
A-14                            CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   27
                                                       SCHEDULE A: SCOPE OF WORK

Dispatching (POC)

o        Order Dispatch

o        Workload View/Adjustment

o        Field Status

Order Management (PQC)

o        Job Summary

o        Order Detail

o        Order Status

o        Order Completion/Amendment

Communications (POC)

o        Public RF network (to be provided by IES)

WMS (POC)

Work Initiation (POC)

o        Work Order Creation

o        Work Requirements

Work Estimating (POC)

o        Job Cost Estimating

o        Bill of Materials Generation

Work Scheduling (POC)

o        Workload Planning

o        Work Request Scheduling

Work Tracking (POC)

o        Job Status Query/Display

Work Closing (POC)

o        As-Built Information Posting

o        Completion Audit

o        Unitization

INTEGRATION (POC)

o        CIS to AM/FM/GIS

o        Call Center to CAD (work request information-nonoutage)

o        Call Center to DMS (outage customer ID)

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                            A-15
Vision IMPACT Project

<PAGE>   28
SCHEDULE A: SCOPE OF WORK

o        DMS to Call Center (outage status)

o        WMS to AM/FM/GIS (work requests and status)

o        AM/FM/GIS to WMS (design data)

o        AM/FM/GIS to WMS (as-built data)

o        CAD to DMS (crew assigned/location)

o        CAD to WMS (new work request for design-if managed in both systems)

o        WMS to MMIS (material needs)

o        MMIS to WMS (material items lists and costs)

o        AM/FM/GIS to DMS (landbase and facilities)

o        CAD to Call Center (scheduling opportunities)

DELIVERABLE PRODUCTS FOR TASK 8

o        POC phase development releases for all applications and integration
         (refer to the schedule for estimated completion dates)

o        POC-level core products configuration for AM/FM/GIS, DMS, CAD, WMS
         (refer to the schedule for estimated completion dates)

o        POC-level minimal core product customization for AM/FM/GIS, DMS, CAD,
         WMS (refer to the schedule for estimated completion dates)

o        POC-level highest priority application development for AM/FM/GIS, DMS,
         CAD, WMS (refer to the schedule for estimated completion dates)

o        POC-level integration (refer to the schedule for estimated completion
         dates)

TASK 9: POC PRODUCT AND INTEGRATION REFINEMENTS FOR PRODUCTION USE
--------------------------------------------------------------------------------

The POC product and integration refinements for the production use phase will
take all IES requested development performed in Task 8 to a production state,
Based on the feedback provided by users from their use of the POC level
functionality, IES and Convergent Group will work together to define and
Convergent Group will draft the development releases associated with refining,
enhancing, and "productionizing" previous application and integration
development.

--------------------------------------------------------------------------------
A-16                            CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   29
                                                       SCHEDULE A: SCOPE OF WORK

o        DEVELOPMENT RELEASES

         As described in Task 8 in greater detail, the process by which
         Convergent Group and IES will prioritize and define the modifications,
         enhancements, or "productionizing" requirements for production use of
         the system will be through the use of development releases.

o        DEVELOPMENT PROCESS

         All development included in this task will be performed or managed by
         Convergent Group and will follow the process as described in Task 8.

         Based on Convergent Group experience, the production development will
         probably result in application enhancements and totally new
         functionality that could be developed as a part of Task 10 development
         releases.

o        FUNCTIONALITY EXPECTED TO BE AVAILABLE IN THIS PHASE

         While the functionality delivered is ultimately determined by
         development release authorizations by IES, the specific applications
         and integration that would be reasonably expected to be developed for
         the production phase are expected to include the same functionality
         provided by Task 8, except that the functionality would be completed,
         or productionized in Task 9. Thus, the list of functionality would be
         the same as described in Task 8.

DELIVERABLE PRODUCTS FOR TASK 9

o        Production phase development releases for all applications and
         integration (refer to the schedule for estimated completion dates)

o        Production-level core products configuration refinements for AM/FM/GIS,
         DMS, CAD, WMS (refer to the schedule for estimated completion dates)

o        Production-level core product customization refinements for AM/FM/GIS,
         DMS, CAD, WMS (refer to the schedule for estimated completion dates)

o        Production-level application development for AM/FM/GIS, DMS, CAD, WMS
         (refer to the schedule for estimated completion dates)

o        Production-level integration with gas and electric network analysis
         software (refer to the schedule for estimated completion dates)

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                            A-17
Vision IMPACT Project

<PAGE>   30
SCHEDULE A: SCOPE OF WORK

o        Production-level integration (refer to the schedule for estimated
         completion dates)

TASK 10: EXTENDED PRODUCTION AND INTEGRATION FUNCTIONALITY DEVELOPMENT
--------------------------------------------------------------------------------

The extended production and integration functionality development results from
user interaction with the core production system and noncore functionality that
typically involves special interfaces with other legacy systems. Once users get
accustomed to the information available to them as a result of the integrated
suite, they become a source for new application ideas to enhance their personal
performance and drive the extended development phases.

o        DEVELOPMENT RELEASES

         As described in Task 8 in greater detail, the process by which
         Convergent Group and IES will prioritize and define the functionality
         to be delivered in the extended functionality phase will be through the
         use of development releases.

o        DEVELOPMENT PROCESS

         All development will be performed or managed by Convergent Group and
         will follow the same process as described in Task 8. The extended
         development may result in other functionality development that will
         have to be evaluated against the development pool funds that remain
         available.

o        FUNCTIONALITY EXPECTED TO BE AVAILABLE IN THIS PHASE

         While the functionality delivered is ultimately determined by
         development release authorizations by IES, the specific product
         application enhancements developed for the extended phase are more
         difficult to predict and will be defined as the implementation
         proceeds. Additional application and integration refinements and
         development are expected to include the following (some may be provided
         via core product software upgrades):

ADDITIONAL AM/FM/GIS

Facilities Queries

o        Historical As-Built Drawing Review

o        Network Analysis Data Preparation

--------------------------------------------------------------------------------
A-18                            CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   31
                                                       SCHEDULE A: SCOPE OF WORK

Work Design

o    Map Redlining and Annotation

o    Standard Design Maintenance

ADDITIONAL DMS

Distribution Operations

o    Emergency Switching Analysis

o    Planned Switching Operations

ADDITIONAL CAD/MDT

Order Scheduling and Planning

o    Automated Route Building

Dispatching

o    Geographic Display

Administration

o    Time/Attendance Reporting

Communications

o    Intelligent Queuing/Inquiry

o    Messaging

o    Field Data Download/Upload

ADDITIONAL INTEGRATION REFINEMENTS AND DEVELOPMENT

o    Mobile GIS to AM/FM/GIS (as-built changes)

o    MDT or GIS to AM/FM/GIS (inspection results)

o    SCADA to DMS (status information)

o    AM/FM/GIS to Maintenance Planning (reliability information)

o    AM/FM/GIS to Forecasting and Planning (gas and electric distribution
     model and load flow information)

o    MDT to WMS (work status)

o    WMS to MMIS (material needs)

o    WMS to Prop Acct (property unit information)

o    AM/FM/GIS to MDT (landbase background)

o    HRIS to CADWMS (resources and costs)

o    CAD to Call Center (scheduling opportunities)

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                            A-19
Vision IMPACT Project

<PAGE>   32
SCHEDULE A: SCOPE OF WORK

DELIVERABLE PRODUCTS FOR TASK 10

o        Extended phase development releases for all applications and
         integration (refer to the schedule for estimated completion dates)

o        Extended product enhancements for AM/FM, DMS, CAD, WMS (refer to the
         schedule for estimated completion dates)

o        Extended application development for AM/FM/GIS, DMS, CAD, WMS (refer to
         the schedule for estimated completion dates)

o        Extended integration (refer to the schedule for estimated completion
         dates)

TASK 11: SYSTEM INTEGRATION MANAGEMENT

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

The system integration management task includes activities associated with
development system administration, software and project specific UNIX hardware
configuration management, and keeping the Denver and Cedar Rapids systems
mirroring each other. IES owns all hardware, which will be returned to Cedar
Rapids as the project ramps down. At IES' option, enough hardware to enable
long-term software maintenance and support by Convergent Group will remain in
Denver and any such hardware will be used for the benefit of IES. Additionally,
Convergent Group strongly suggests that IES create test environments on-site in
Cedar Rapids for the integrated suite components to facilitate software
upgrades.

DELIVERABLE PRODUCTS FOR TASK 11

o        Establish a staging facility in Denver

o        Manage the setup, installation, and maintenance of the communications
         link between Denver and Cedar Rapids

o        Site preparations

o        UNIX hardware configuration/reconfiguration and system testing

o        UNIX applications and product software installation and configuration

o        Assist IES in setting up software distribution plan for Intel devices

o        Conduct incremental software deliveries for UNIX platform and a
         prototype INTEL unit, i.e., deployment of INTEL software to all INTEL
         units is not included.

--------------------------------------------------------------------------------
A-20                            CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   33
                                                       SCHEDULE A: SCOPE OF WORK

TASK 12: SYSTEM TESTING/ACCEPTANCE COORDINATION
--------------------------------------------------------------------------------

Convergent Group will use a strategy in executing this task that ensures IES'
staff fully understands all systems. The IES' Project Team assists in the design
and performs the actual testing of the applications under the guidance of
Convergent Group. Convergent Group believes it is critical for IES to be
involved in the development and approve the test plans written by Convergent
Group for two reasons: (1) internal development will provide IES with a means
for transferring the technology to the IES Project Team and users and (2) IES
involvement will begin to build a foundation of application and system knowledge
to maintain first-level internal system support functions and to complement
software maintenance agreements. IES will assist in the design and development
of the criteria for approval to ensure that those aspects most important to IES
are tested.

Convergent Group will use the staging facility in its Englewood, Colorado
offices to install all vendor and Convergent Group-developed software for
application and integrated suite testing. Convergent Group staff will test all
applications software modules to ensure compliance with the development release
specifications and test plans. This testing will be done prior to installation
at IES' facilities where final mainframe integration and user acceptance testing
will be conducted by IES

An IES business process-oriented test plan will be developed by Convergent
Group. The test plan will be based on the development releases for testing and
measuring the success criteria for each application or system. IES users or
members of the Project Team will perform these tests under the guidance of
Convergent Group and approve the release expeditiously according to the project
plan. Feedback will be divided into functionality fixes and modifications.
Fixes, defined as code that did not work according to development release
specification, will be returned to development for the appropriate code
debugging. Modifications, defined as changes or enhancements to working
functionality, will be evaluated by IES for inclusion in future development
releases of Tasks 9 or 10. If the code was to be fixed and is fixed, the
application will be reinstalled and the tests will be performed again for
approval by IES. This approach helps to ensure that the development process is
user driven and that IES is satisfied with the final result.

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                            A-21
Vision IMPACT Project

<PAGE>   34
SCHEDULE A: SCOPE OF WORK

DELIVERABLE PRODUCTS FOR TASK 12

o        Assistance to IES in designing and testing applications and system
         integration

o        Process-oriented user test plans

o        IES user application acceptance tests setup and monitoring

o        Documentation of application fixes and modifications for return to
         development or future IES' development release approval

TASK 13: CUSTOM APPLICATIONS TRAINING
--------------------------------------------------------------------------------

Convergent Group will provide functionality demonstrations of the Convergent
Group configuration, refinement, and integration development. Along with the
functionality demonstrations, Convergent Group will provide a "cheat sheet" that
explains any specific changes to the core product use that may affect a user.
Additionally, Convergent Group will provide guidance to IES when developing
training schedules for the pilot, production, and extended phase functionality
based on the training matrix provided in the Strategic Implementation Plan.
Convergent Group will also provide guidance to the Project Team regarding the
need for additional background and prerequisite training available from third
parties (AND IS NOT INCLUDED IN THIS SCOPE OF WORK) that will serve as the
fundamental user training for each core product and would be required prior to
all Convergent Group functionality demonstrations for each phase (except the
overview training).

DELIVERABLE PRODUCTS FOR TASK 13

o        Training schedules and plans

o        Prerequisite training requirements

o        Functionality review sessions to include:

         -        Overview review on CAD, AM/FM/GIS, DMS, WMS

         -        POC functionality demonstration review on CAD, AM/FM/GIS, DMS,
                  WMS

         -        Production functionality demonstration on CAD, AM/FM/GIS, DMS,
                  WMS

         -        Extended functionality demonstration on CAD, AM/FM/GIS, DMS,
                  WMS

         -        System support and maintenance training

--------------------------------------------------------------------------------
A-22                            CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   35
                                                       SCHEDULE A: SCOPE OF WORK

IES VISION IMPACT PROJECT ASSUMPTIONS

Convergent Group is committed to delivering the IES Vision IMPACT project Scope
of Work for the fees, both fixed and estimated as defined in schedules B and C.
The following assumptions form the basis of the schedules A, B and C.

1.       For purposes of schedules A, B, and C, IES has designated Electronic
         Data Systems Corporation (EDS) as its authorized agent.

2.       In partnering with IES to provide overall price savings (as reflected
         in Schedule B, "Fixed-Price Payments"), licensed software and
         maintenance will be purchased from Convergent Group through vendors
         specified in Schedule B.

3.       Price includes only the iterations mutually deemed necessary for the
         expeditious completion of deliverables contained in Schedule A, "Scope
         of Work" The Project Managers shall mutually agree on the time required
         to review each deliverable and the time for deliverable acceptance. The
         review and acceptance time periods will vary according to task and
         deliverable. Iterations beyond those described in the Scope of Work
         will require time and material prices (per schedule to be provided) or
         a corresponding dollar reduction in work on other tasks.

4.       IES will provide the resources (as defined in the Strategic
         Implementation Plan) required to perform all IES information specific
         data preparation and conversion scrub activities. Such resources will
         have appropriate skills and authority to complete the work and resolve
         conflicts among source documents. Work assigned to IES must be
         completed on schedule and to specification.

5.       IFS will assign sufficient personnel resources to complete its Work
         Plan obligations in a timely manner in accordance with the mutually
         agreed to project baseline schedule. Such resources will have
         appropriate skills and authority to complete the work. If such tasks
         are not completed according to the schedule, the parties will mutually
         agree to a schedule and/or scope adjustment.

6.       Project fees for labor and materials are based upon IES' utilization of
         Hewlett-Packard UNIX hardware, Graphic Data Systems Corporation (GDS
         Corp.) as the AM/FM/GIS vendor, Configured Energy Systems (CES) as the
         Outage Management

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                            A-23
Vision IMPACT Project

<PAGE>   36
SCHEDULE A: SCOPE OF WORK

         vendor, Severn-Trent as the Work Management vendor, MDSI as the CAD/MDT
         vendor, and ORACLE as the relational database management system (RDBMS)
         for the integrated suite.

7.       IES is responsible for the UNIX and PC hardware purchases and/or
         upgrades, and PC installation for the AM/FM/GIS, WMS, and CAD/MDT
         clients. Convergent Group is responsible for the configuration of
         project UNIX-based hardware and defining the configuration of the PC
         hardware. IES is responsible for any required telecommunications
         network upgrades.

8.       The total project is projected to take place over an approximately
         24-month period beginning on the contract date. In the event that IES
         extends the schedule due to business strategy changes, increases to
         scope, etc., applicable fixed fee task items will be addressed via
         change orders. Any delays caused by Convergent Group may impact the
         timely payment of the $200,000 final fixed fee payment.

9.       Interfaces to legacy systems are assumed to be implemented through
         "shadow" tables on DB2 on IES' mainframe to position these new
         interfaces for future upgrades to the legacy systems and delivering
         them initially in a price-effective manner. This is to say, the
         interfaces will read and write from DB2 tables on the mainframe via
         TCP/IP, and the legacy systems will read and write from those same
         tables to transfer data to the internal modules of those systems
         (unless mutually agreed to otherwise). Convergent Group will work with
         the IES' Information Technology (IT) staff on delivering efficient
         interfaces as defined in Section 1, "Integration," of the Strategic
         Implementation Plan.

10.      IES will provide programming resources to perform necessary
         modifications to mainframe legacy systems. Hardware and software that
         will perform the gateway function to the IES' mainframe will be
         provided by IES subsequent to system architecture discussions between
         Convergent Group and IES IT personnel.

11.      Convergent Group assumes that the project work performed in Cedar
         Rapids will be performed at IES' site. The design and build efforts
         generally will be conducted at Convergent Group offices in Englewood,
         Colorado. Staging and detailed functional testing will be performed at
         Convergent Group offices in Englewood. User testing assistance, rollout
         assistance, and training will be performed in Englewood or Cedar Rapids
         at mutually agreed-upon sites. IES will allow Convergent Group to

--------------------------------------------------------------------------------
A-24                            CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   37
                                                       SCHEDULE A: SCOPE OF WORK

         develop on IES' hardware and project software at Convergent Group's
         offices for subsequent delivery to IES. It is required that Convergent
         Group and IES establish a telecommunications link between the two
         offices to maximize development efficiencies.

12.      IES will provide office space and facilities to Convergent Group
         personnel on-site at IES offices to perform various aspects of the
         implementation.

13.      Pricing is based upon Scope of Work commencement on or about July 1,
         1996, and completion in 2 years

14.      An additional price of approximately $8 per customer will be charged in
         the event that IES adds customers, within its current IES service
         territory, to the conversion project in excess of 340,000 electric
         customers and 180,000 gas customers. Prices may be higher for customers
         acquired through annexation or merger due to differences in source
         documents and available landbase data.

15.      The price of items and tasks not covered in the contract price include
         the following(1)

         o        IES and IES/EDS internal team labor and expenses

         o        Middleware to communicate between mainframe and Vision IMPACT
                  Project applications, i.e., AM/FM/GIS, WMS, DMS, and CAD/MDT
                  (per assumption 8).

         o        Intel-based PC upgrades and field devices - including MDT PCs
                  and GPS hardware.

         o        End-user and/or specialized technical training classes. (Note:
                  "Train-the-trainer" classes are included in the project scope
                  as Task 13).

         o        ORACLE software licenses. These can be optionally provided
                  through Convergent Group.

         o        Gas and electric engineering analysis software packages. These
                  can be optionally provided through Convergent Group.

         o        UNIX hardware and associated maintenance. These can be
                  optionally provided through Convergent Group.

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

(1) These prices were estimated as part of the Strategic Implementation Plan and
have been given to IES for budget planning purposes. Note: IES will provide
hardware, ORACLE, and middleware licenses to Convergent Group on-site in Denver
as necessary to support development and integration tasks.

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                            A-25
Vision IMPACT Project

<PAGE>   38
SCHEDULE A: SCOPE OF WORK

16.      The price of items and tasks not covered in the contract price includes
         the following. These prices were not estimated as part of the Strategic
         Implementation Plan per IES direction to exclude them from the project
         prices.

         o        Public radio frequency (RF) monthly usage fees

         o        Potential upgrades to the IES private RF infrastructure

         o        Internal telecommunication upgrades, if required, to support
                  the new application suite

17.      Communication tools such as presentation foils, slides, or videos are
         not covered specifically in the fee for Task 2. These can optionally be
         provided by Convergent Group.

18       Expenses for IES trips are not included.

19.      Key Convergent Group project resources, listed below, will not be
         reassigned to similar duties on other accounts during the life of the
         project without the mutual agreement of both parties. Key IES project
         resources, listed below, will not be reassigned during the life of the
         project without mutual agreement of both parties.

         o        Mr. Terry Yaryan, Convergent Group Project Director
                  (Approximately 30 percent)

         o        Mr. Andy Gay, Convergent Group Project Manager

         o        Mr. Jeremy Bisset, Convergent Group Technical Director

         o        Ms. Dundeana Langer, IES Project Director (Part-time as
                  required)

         o        Mr. Joe Harnish, IES Project Manager

         o        Mr. Kevin Wagner, EDS IT Coordinator

--------------------------------------------------------------------------------
A-26                            CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   39
SCHEDULE B: FIXED-PRICE PAYMENTS

The total fixed fee for services and third-party software for the IES Vision
IMPACT project as defined in Schedule A, is $9,263,287, which is comprised of
$200,000 for the final fixed fee payment, $3,267,043 for services, $3,747,924
for conversion, and $2,048,320 for software, as further described below.

FINAL FIXED FEE PAYMENT

A $200,000 final fixed fee payment is due upon IES approval of project
completion in accordance with mutually agreed upon acceptance criteria.

SERVICES

Convergent Group will provide the services associated with the delivery of an
integrated AM/FM/GIS, Work Management, Distribution Management, and Mobile Data
Terminal system for the IES Vision IMPACT Project. These services are defined in
Schedule A, Scope of Work, and consist of the following:

o        Mobilization Fee

o        Task 1 - Project Management and Systems Integration Consulting

o        Task 2 - Employee Communications

o        Task 3 - Management of Hardware Procurement

o        Task 4 - Management of Software Procurement

o        Task 5 - Data Modeling

o        Task 11 - System Integration Management

o        Task 12 - System Testing/Acceptance Coordination

o        Task 13 - Custom Application Training

The fixed fee for services over the designated 2-year time period of the project
will be $3,267,043, less the $225,000 mobilization fee previously authorized as
Amendment 1 to the IES Strategic Implementation Plan contract. The remaining fee
of $3,042,043 will be invoiced monthly according to the following schedule:

--------------------------------------------------------------------------------
IES                                            CONVERGENT GROUP              B-1
Vision IMPACT Project

<PAGE>   40
SCHEDULE B: FIXED-PRICE PAYMENTS

<TABLE>
<CAPTION>

                    1996             1997           1998
                    ----             ----           ----
<S>               <C>              <C>            <C>
January                            $121,453       $ 49,469
February                           $121,453       $ 49,469
March                              $121,453       $ 49,469
April                              $121,453       $ 49,469
May                                $121,453       $ 49,469
June              $225,000         $121,453       $ 49,470
July              $215,633         $121,453
August            $215,633         $121,453
September         $215,633         $121,453
October           $215,633         $121,453
November          $215,633         $121,453
December          $215,633         $115,447
</TABLE>

Note: The June $225,000 mobilization fee was paid in
Amendment 1 to contract U101.

CONVERSION

Conversion consists of the following tasks as described in Schedule A, Scope of
Work.

o    Task 6 - Development of Vision IMPACT Asset Database

o    Task 7 - Data Migration

The fixed fee for data conversion is $3,747,924 and will be billed on a percent
complete basis as data is delivered to IES and accepted by IES within a mutually
agreed data QA/QC acceptance criteria. The following table depicts the
anticipated invoice timing for IES budget planning purposes. A start-up fee of
$400,000 as indicated in the following table is required to mobilize Convergent
Group and conversion vendor resources prior to production data delivery. Actual
billing after mobilization will be based on the percent of data delivered, i.e.,
measured by number of transformers and/or customers. The following table
provides a budgetary forecast of anticipated conversion charges.

--------------------------------------------------------------------------------
B-2         CONVERGENT GROUP                                                 IES
                                                           Vision IMPACT Project

<PAGE>   41
                                                SCHEDULE B: FIXED-PRICE PAYMENTS

<TABLE>
<CAPTION>

                  1996            1997           1998
                  ----            ----           ----
<S>               <C>         <C>            <C>
January                       $  400,000     $  114,512
February                      $   40,000     $  114,512
March                         $   40,000     $  114,512
April                         $  114,512     $   74,512
May                           $  114,512     $        0
June                          $  417,723     $        0
July              $    0      $  417,723
August            $    0      $  417,723
September         $    0      $  417,723
October           $    0      $  417,723
November          $    0      $  417,723
December          $    0      $  114,514
</TABLE>

SOFTWARE

The fixed fee for third-party software is $2,048,320 as follows.

Convergent Group is providing the following fixed discounted pricing for the
third-party software of the integrated suite described as follows:

o    GDS

   The group license components of GDS software for the AM/FM/GIS component of
   the integrated suite will be as follows:

-    3 development licenses

-    23 full-function licenses

-    52 view/analyze licenses

-    161 view only stand-alone licenses

The discounted price for the entire group of licenses will be $633,500. Any
further licenses purchased for IES will be provided at a price with a continuing
40 percent discount applied to the then current list prices.

During the term of this Vision IMPACT development contract, should IES require a
somewhat different mix of specific licenses as defined above and in the IES
Strategic Implementation Plan, a credit equal to 40 percent of the then current
list price of any specific license can be applied toward the discounted price of
another license from these same types.

o    CES

--------------------------------------------------------------------------------
IES                                            CONVERGENT GROUP              B-3
Vision IMPACT Project

<PAGE>   42
SCHEDULE B: FIXED-PRICE PAYMENTS

The discounted site license of the CES software for the DMS component of the
integrated suite at IES will be $500,000 including the following modules to
serve a single DDC and one emergency backup site in accordance with the
Strategic Implementation Plan:

-    InterSys

-    Operator's Workspace

-    TroubleMan

-    CrewMan

-    SwitchMan

-    Additional CES supporting software, e.g., XRT, Builder Xcessory, C++
     Compiler, is also included

Should an additional operating IES DDC site be required to serve IES for the IES
Utilities service territory (in accordance with the scope of the IES Vision
IMPACT project, and be authorized via change orders, the additional license fee
would be provided at a discounted fee of $285,000 if provided during the time
period of this contract.

o    MDSI

The discounted site license of the MDSI software for the CAD/MDT component of
the integrated suite at IES providing up to 250 mobile users will be $464,820.

o    Severn-Trent

The discounted site license of the Severn-Trent STORMS software for the WMS
component of the integrated suite to serve IES for the IES Utilities Service
Territory in accordance with the scope of IES Vision IMPACT Project will be
$450,000.

All software will be procured and invoiced in its entirety during 1996 to obtain
the above discount prices. These payments are in addition to the payment
schedule for Fixed Price Services.

The following table provides a budgetary forecast of anticipated software
license charges.

<TABLE>
<CAPTION>

Software                    Purchase Date                 Price
--------                    -------------               --------
<S>                         <C>                         <C>
MDSI                        August 1996                 $464,820
Severn-Trent                September 1996              $450,000
GDS                         October 1996                $633,500
CES                         November 1996               $500,000
</TABLE>

--------------------------------------------------------------------------------
B-4                        CONVERGENT GROUP                                  IES
                                                           Vision IMPACT Project
<PAGE>   43
                                                                   EXHIBIT 10.18

SCHEDULE C: BILLING TERMS FOR ESTIMATED WORK

The total of the estimated payments for the IES Vision IMPACT Project as defined
in Schedule A is $5,070,340 as described below. All payments included in this
schedule are in addition to the fees outlined in Schedule B, "Fixed-Price
Payments."

EXPENSES

All payments included in this schedule are in addition to the payments in
Schedule B, "Fixed-Price Payments." Convergent Group expenses associated with
the support of activities within the Vision IMPACT project will be invoiced
monthly at cost plus a 3.5 percent administrative fee as they are incurred.
These expenses include, but are not limited to, airfare, lodging, car rental,
food, parking, copies, postage, faxes, and long-distance telephone charges
(including Denver to Cedar Rapids communications link telephone charges and
hardware if IES has Convergent Group provide). Expenses may be billed directly
to IES if mutually convenient. Expenses will be reported monthly by person and
category. Estimated total project expenses are $600,000.

APPLICATION AND SYSTEM INTEGRATION DEVELOPMENT

Application and system integration development services provided by Convergent
Group will be invoiced according to the following payment schedule for each
development release as documented in the following tasks in Schedule A, "Scope
of Work":

o        Task 8 - Proof of Concept Core Product Configuration and Integration

o        Task 9 - POC Product and Integration Refinements for Production Use

o        Task 10 - Extended Production and Integration Functionality Development

The payment schedule for each development release will be as follows:

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                             C-1
Vision IMPACT Project

<PAGE>   44
SCHEDULE C: BILLING TERMS FOR ESTIMATED WORK

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------
  PERCENT OF TOTAL DEVELOPMENT                 POINT DURING DEVELOPMENT THAT
      RELEASE VALUE INVOICED                      AMOUNT WILL BE INVOICED
-----------------------------------------------------------------------------------
<S>                                        <C>
                   20%                     Written authorization by IES provided
                   20%                     Calendar midpoint between
                                           authorization and prototype review
                   20%                     Prototype review workshop
                   20%                     Development delivered for IES testing
                   20%                     Written development acceptance by IES
-----------------------------------------------------------------------------------
</TABLE>

As development releases are authorized and fixed price fees are established for
each individual release, these amounts will be deducted from the remaining
Application and System Integration Development pool of dollars. The amount
allocated to this pool of dollars is estimated at $3,318,210 (as detailed in the
tables that follow) based on the Strategic Implementation Plan developed by IES
and Convergent Group.

--------------------------------------------------------------------------------
C-2                             CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   45
                                    SCHEDULE C: BILLING TERMS FOR ESTIMATED WORK

TABLE 1           INTERFACES

<TABLE>
<CAPTION>
INTEGRATION DEV. RELEASES FROM-TO NAME                           1996         1997         1998        TOTAL
                                                              ----------   ----------   ----------   ----------
<S>                                                           <C>          <C>          <C>          <C>
Middleware Set-up                                             $   30,000   $        0   $        0   $   30,000
Call Center to CAD (new work request info-non outage)         $   57,750   $   74,813   $        0   $  132,562
Call Center to DMS-(outage customer ID)                       $        0   $   39,375   $        0   $   39,375
WMS to GIS (work requests and status)                         $        0   $   31,500   $        0   $   31,500
GIS to WMS (design data)                                      $        0   $   45,675   $   49,613   $   95,288
GIS to WMS (as built data)                                    $        0   $   23,625   $        0   $   23,625
Mobile GIS to GIS (as built changes)                          $        0   $        0   $   38,588   $   38,588
MDT or Mobile GIS to GIS or planned Inspection                $        0   $        0   $   49,613   $   49,613
SCADA to DMS (status info)                                    $        0   $   56,700   $   39,690   $   96,390
MDT to DMS (optional - field operations status)               $        0   $        0   $        0   $        0
DMS to GIS (facility reliability history)                     $        0   $   15,750   $        0   $   15,750
GIS to Maintenance Planning (reliability info)                $        0   $        0   $   24,806   $   24,806
GIS to GIS Analysis (dist. Model & load flow info)            $        0   $   86,625   $   33,075   $  119,700
DMS to CAD (Optional-PO location for troubleman)              $        0   $        0   $        0   $        0
DMS to CAD (new construction work)                            $        0   $   47,250   $        0   $   47,250
CAD to DMS (crew assigned/location)                           $        0   $   47,250   $        0   $   47,250
CAD to WMS (new work request for design-if managed in both)   $        0   $   31,500   $        0   $   31,500
MDT to WMS (work status)                                      $        0   $   31,500   $        0   $   31,500
WMS to MMIS (material needs)                                  $        0   $   23,625   $        0   $   23,625
MMIS to WMS (material items lists and costs)                  $        0   $   31,500   $        0   $   31,500
WMS to Prop Acct (property unit info)                         $        0   $   23,625   $        0   $   23,625
GIS to MDT (landbase background)                              $        0   $   28,350   $   19,845   $   48,195
GIS to DMS (landbase and facilities                           $        0   $   81,900   $        0   $   81,900
HRIS to CAD/WMS (resources and costs)                         $        0   $   23,625   $        0   $   23,625
HRIS to WMS (optional-actual reported hours to work orders)   $        0   $        0   $        0   $        0
CAD to Call Center (work request status)                      $        0   $   28,350   $   33,075   $   61,425
DMS to Call Center (outage status)                            $        0   $   55,125   $        0   $   55,125
DMS to SCADA (optional-switch operations)                     $        0   $        0   $        0   $        0
Network Analysis to GIS (optional-analysis results)           $        0   $        0   $        0   $        0
CIS to GIS (premise)                                          $        0   $   39,375   $        0   $   39,375
                                                              ----------   ----------   ----------   ----------
Interfaces Total                                              $   87,750   $  867,038   $  288,304   $1,243,091
                                                              ==========   ==========   ==========   ==========
</TABLE>

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                             C-3
Vision IMPACT Project

<PAGE>   46
SCHEDULE C: BILLING TERMS FOR ESTIMATED WORK

TABLE 2           APPLICATIONS

<TABLE>
<CAPTION>
APPLICATIONS/DEVELOPMENT RELEASES             1996         1997         1998         TOTAL
                                           ----------   ----------   ----------   ----------
<S>                                        <C>          <C>          <C>          <C>
GIS                                        $  205,500   $  756,000   $   83,790   $1,045,290
Core Product Configuration                 $  144,000   $   31,500   $        0   $  175,500
Core Product Refinement                    $        0   $   37,800   $        0   $   37,800
Standard Mapping                           $        0   $   75,600   $   19,845   $   95,445
Standard Reports                           $        0   $   80,850   $   14,333   $   95,183
Data Integrity                             $        0   $   94,500   $        0   $   94,500
Work Design Sketch                         $        0   $  118,125   $        0   $  118,125
Work Posting of As-builts                  $        0   $   63,000   $        0   $   63,000
Schematic Management                       $        0   $   94,500   $        0   $   94,500
Network Analysis Data Preparation          $   15,000   $   23,100   $   16,538   $   54,638
Data Query/locate                          $   46,500   $   29,925   $   13,230   $   89,655
Maintenance Planning                       $        0   $   12,600   $   19,845   $   32,445
Migration from CableCad                    $        0   $   94,500   $        0   $   94,500
                                           $        0   $        0   $        0   $        0
DMS                                        $        0   $  301,500   $    9,923   $  911,423
Core Product Configuration                 $        0   $  207,000   $        0   $  207,000
Core Product Refinement                    $        0   $   94,500   $        0   $   94,500
Extended Product Funtionality              $        0   $        0   $    9,923   $    9,923
                                                        $        0   $        0   $        0
MDT                                        $  123,000   $  107,100   $   33,075   $  263,175
Core Product Configuration                 $  123,000   $   75,600   $        0   $  198,600
Core Product Refinement                    $        0   $   31,500   $        0   $   31,500
Extended Product Funtionality              $        0   $        0   $   33,075   $   33,075
                                           $        0   $        0   $        0   $        0
WMS                                        $  148,500   $  182,700   $  124,031   $  455,231
Core Product Configuration                 $  148,500   $   25,200   $        0   $  173,700
Core Product Refinement                    $        0   $  157,500   $        0   $  157,500
Extended Product Funtionality              $        0   $        0   $  124,031   $  124,031
                                           $        0   $        0   $        0   $        0
                                           ----------   ----------   ----------   ----------
Applications Total                         $  477,000   $1,347,300   $  250,819   $2,075,119
                                           ==========   ==========   ==========   ==========
</TABLE>

Taken individually, some of the development releases may exceed their estimated
cost while others may be combined and developed at a lower cost. The total
dollar allocations are adequate to cover the applications and interfaces as
currently envisioned by Convergent Group and IES. Convergent Group will provide,
as part of its invoices, an update of the pool of dollars allocated to
development and the remaining unallocated dollars.

Any development release pool dollars remaining at the end of the project will be
left unspent and kept by IES. If the cumulative value of the authorized
development releases exceeds the development pool, a change order will be
required for the extra amount.

--------------------------------------------------------------------------------
C-4                             CONVERGENT GROUP                             IES
                                                           Vision IMPACT Project

<PAGE>   47
                                    SCHEDULE C: BILLING TERMS FOR ESTIMATED WORK

SOFTWARE MAINTENANCE

Software maintenance will be provided for a minimum period of two years as
described below. All software maintenance will be consolidated under a single,
separate agreement and the effective dates will be synchronized to January 1,
payable on that date of each year except for maintenance on custom applications
and interfaces. The warranty period for all software is 90 days. The annual fee
for core product maintenance for the two years minimum maintenance will be
according to the following schedule:

o        GDS - 15 percent of license price to IES Utilities ($95,025/yr.)

o        CES - 20 percent of license  price to IES Utilities ($100,000/yr.)

o        MDSI - 15 percent of license price to IES Utilities ($69,723/yr.)

o        Severn-Trent - 15 percent of license to IES Utilities ($67,500/yr.)

The total fee for third-party software maintenance for the two years is
$664,496.

The annual fee for custom applications and interfaces maintenance for the two
years minimum maintenance will be according to the following schedule:

o        Custom Applications and Interfaces - Maintenance fees will be 10
         percent of the combined application and interface "accepted" cumulative
         development release fees. Software upgrades will be provided, at a
         minimum, in accordance with the maintenance requirements of the
         third-party software providers. These applications and interface
         maintenance fees are in addition to the above core product maintenance
         fees and will be adjusted and payable quarterly during the life of the
         contract so as to be synchronized at the end of the contract term.
         These are estimated to be $162,545 in 1997 and $325,089 in 1998 for a
         total of $487,634.

--------------------------------------------------------------------------------
IES                             CONVERGENT GROUP                             C-5
Vision IMPACT Project

<PAGE>   48
                                                                   EXHIBIT 10.18

                                   SCHEDULE D

                            ELECTRONIC FUNDS TRANSFER

Instructions for transmitting funds to Convergent Group Corporation via wire
transfer:

 Wire to:           UMB Columbine Bank
                    6900 E. Hampden Avenue
                    Englewood, CO 80224

                    ABA# 107001067

 For Credit to:     Convergent Group Corporation
                    Operating Account
                    6200 S. Syracuse Way, #200
                    Englewood, CO 80111

                    Acct.# 7170565404

If you have questions, please contact UMB Bank - Columbine Branch directly at
(303) 758-2501.

The persons to contact are Shelly Robbins or Marion Legett in the Wire Transfer
Department.

Convergent Group Corporation contact is the Controller at (303) 741-8400.

<PAGE>   49
          SCHEDULE F               PROJECT NAME: IES VISION IMPACT

<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------------------------------
WBS CODE                    TASK NAME                                                  SCHED START         SCHED FIN
----------------------------------------------------------------------------------------------------------------------
<S>           <C>                                                                      <C>                 <C>
1             PROJECT ORGANIZATION AND MANAGEMENT                                        06/24/96           07/31/98

1.0                 Kickoff meeting                                                      06/26/96           08/19/96

1.1                 Status reports (bi-weekly)                                           06/24/96           05/22/98

1.2                 Establish issue tracking schema                                      07/19/96           08/01/96

1.3                 Establish project plan maintenance schema                            07/19/96           08/01/96

1.4                 Project Sponsor Status Briefings                                     07/01/96           04/06/98

1.5                 Ongoing Program management support                                   06/26/96           07/31/98

2             EMPLOYEE COMMUNICATIONS PROGRAM                                            06/26/96           02/11/98

3             HARDWARE PROCUREMENT                                                       06/24/96           09/09/97

4             SOFTWARE PROCUREMENT                                                       07/11/96           09/06/96

5             DATA MODELING                                                              07/03/96           01/09/97

5.0                 Conceptual/Logical Modeling                                          07/03/96           10/10/96

5.1                 Physical Database Modeling                                           10/04/96           01/09/97

5.2                 Global Architecting                                                  07/15/96           11/07/96

5.2.0                      Further requirements gathering                                07/15/96           11/07/96

5.2.1                      Hardware configuration                                        07/19/96           08/15/96

5.2.2                      Develop UNIX and PC configuration standards                   07/19/96           08/15/96

5.2.3                      Identify data distribution requirements                       10/04/96           10/17/96

5.2.4                      Distribution of attributes                                    10/18/96           10/31/96

5.2.5                      Identify fragmentation candidates                             10/18/96           10/31/96

5.2.6                      Identify participating candidates                             10/18/96           10/31/96

5.2.7                      Identify replication candidates                               10/18/96           10/31/96

5.2.8                      Acceptance of the Global Architecture Design                  11/01/96           11/07/96

6             DATA CONVERSION                                                            07/17/96           05/18/98

6.0                 Pilot Project                                                        07/17/96           06/19/97

6.0.0                      Develop Draft Data Source Matrix                              07/17/96           09/16/96

6.0.1                      Conversion Kickoff Workshop                                   09/09/96           09/19/96

6.0.2                      Symbology Development                                         09/12/96           02/28/97

6.0.3                      Data Scrub Procedures                                         01/10/97           02/13/97

6.0.5                      Conversion Specification                                      02/10/97           04/01/97

6.0.6                      Conduct Contract Negotiations                                 04/02/97           04/15/97

<CAPTION>
------------------------------------------------------------------------------------------------------------------------------
                                                                       1996                                1997
------------------------------------------------------------------------------------------------------------------------------
WBS CODE                    TASK NAME                                  J  J  A  S  O  N  D  J  F  M  A  M  J  J  A  S  O  N  D
------------------------------------------------------------------------------------------------------------------------------
<S>           <C>                                                      <C>                                 <C>
1             PROJECT ORGANIZATION AND MANAGEMENT

1.0                 Kickoff meeting

1.1                 Status reports (bi-weekly)

1.2                 Establish issue tracking schema

1.3                 Establish project plan maintenance schema

1.4                 Project Sponsor Status Briefings

1.5                 Ongoing Program management support

2             EMPLOYEE COMMUNICATIONS PROGRAM

3             HARDWARE PROCUREMENT

4             SOFTWARE PROCUREMENT

5             DATA MODELING

5.0                 Conceptual/Logical Modeling

5.1                 Physical Database Modeling

5.2                 Global Architecting
                                                                                            [BAR CHART]
5.2.0                      Further requirements gathering

5.2.1                      Hardware configuration

5.2.2                      Develop UNIX and PC configuration standards

5.2.3                      Identify data distribution requirements

5.2.4                      Distribution of attributes

5.2.5                      Identify fragmentation candidates

5.2.6                      Identify participating candidates

5.2.7                      Identify replication candidates

5.2.8                      Acceptance of the Global Architecture Design

6             DATA CONVERSION

6.0                 Pilot Project

6.0.0                      Develop Draft Data Source Matrix

6.0.1                      Conversion Kickoff Workshop

6.0.2                      Symbology Development

6.0.3                      Data Scrub Procedures

6.0.5                      Conversion Specification

6.0.6                      Conduct Contract Negotiations

<CAPTION>
-------------------------------------------------------------------------------------------------
                                                                                 1998
-------------------------------------------------------------------------------------------------
WBS CODE                    TASK NAME                                  J  F  M  A  M  J  J  A  S
-------------------------------------------------------------------------------------------------
<S>           <C>                                                      <C>
1             PROJECT ORGANIZATION AND MANAGEMENT

1.0                 Kickoff meeting

1.1                 Status reports (bi-weekly)

1.2                 Establish issue tracking schema

1.3                 Establish project plan maintenance schema

1.4                 Project Sponsor Status Briefings

1.5                 Ongoing Program management support

2             EMPLOYEE COMMUNICATIONS PROGRAM

3             HARDWARE PROCUREMENT

4             SOFTWARE PROCUREMENT

5             DATA MODELING

5.0                 Conceptual/Logical Modeling

5.1                 Physical Database Modeling

5.2                 Global Architecting
                                                                          [BAR CHART]
5.2.0                      Further requirements gathering

5.2.1                      Hardware configuration

5.2.2                      Develop UNIX and PC configuration standards

5.2.3                      Identify data distribution requirements

5.2.4                      Distribution of attributes

5.2.5                      Identify fragmentation candidates

5.2.6                      Identify participating candidates

5.2.7                      Identify replication candidates

5.2.8                      Acceptance of the Global Architecture Design

6             DATA CONVERSION

6.0                 Pilot Project

6.0.0                      Develop Draft Data Source Matrix

6.0.1                      Conversion Kickoff Workshop

6.0.2                      Symbology Development

6.0.3                      Data Scrub Procedures

6.0.5                      Conversion Specification

6.0.6                      Conduct Contract Negotiations
</TABLE>
<PAGE>   50

<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------------------------------------
                                                                                                         1996
----------------------------------------------------------------------------------------------------------------------------
WBS CODE                          TASK NAME                              SCHED START      SCHED FIN      J  J  A  S  O  N  D
----------------------------------------------------------------------------------------------------------------------------
<S>       <C>                                                            <C>               <C>           <C>
6.0.7         Conduct Pilot Conversion                                    04/01/97         05/29/97

6.0.8         QA/QC                                                       04/17/97         06/05/97

6.0.9         Pilot Review                                                06/06/97         06/19/97

6.0.10        Digitize Sample Circuitry to Support DMS                    01/10/97         01/23/97

6.1         Full Conversion Project                                       06/17/97         05/18/98

6.1.0         Field-verify landbase accuracy                              06/17/97         06/30/97

6.1.1         Determine Strategy for Improved Landbase                    07/01/97         07/03/97

6.1.2         Field Data Capture Reqs. Workshop                           07/07/97         07/11/97

6.1.3         Conduct Area Conversion (1)                                 07/03/97         10/06/97

6.1.4         Conduct Other Area Conversions                              09/30/97         05/18/98

6.1.6         Manage Other Area Conversions                               09/30/97         05/18/98

6.1.5         Full Conversion complete                                    05/18/98         05/18/98

7         DATA MIGRATION                                                  11/26/96         06/04/97

7.0         Develop AM/FM/GIS migration specifications                    11/26/96         12/23/96

7.1         Develop TLM data migration strategy                           12/10/96         12/23/96

7.2         Review migration strategies with IES and Conversion Contract  12/26/96         12/27/96

7.3         Migrate TLM data to AM/FM/GIS database                        12/30/96         03/03/97

7.4         Conduct AM/FM/GIS data migration                              04/23/97         06/04/97
                                                                                                         [BAR CHART]
8         CORE PRODUCT CONFIGURATION DEV. REL.                            09/24/96         07/07/97

8.0         CAD/MDT Dev. Releases (POC)                                   09/24/96         02/07/97

8.0.0         Core Product Configuration                                  09/24/96         12/18/96

8.0.1         Core Product Customization                                  12/19/96         02/07/97

8.0.2         CAD/MDT POC system available                                02/07/97         02/07/97

8.1         AM/FM/GIS Dev. Releases (POC)                                 11/11/96         05/02/97

8.1.0         Core Product Configuration                                  11/11/96         02/07/97

8.1.1         Core Product Customization                                  01/10/97         05/02/97

8.1.2         AM/FM/GIS POC system available                              05/02/97         05/02/97

8.2         DMS Dev. Releases (POC)                                       03/07/97         07/03/97

8.2.0         Core Product Configuration                                  03/07/97         04/24/97

8.2.1         Core Product Customization                                  04/25/97         06/12/97

8.2.2         DMS POC system available                                    06/12/97         06/12/97

8.2.3         Configure with test data                                    06/13/97         07/03/97

8.3         WMS Dev. Releases (POC)                                       11/11/96         05/16/97

8.3.0         Core Product Configuration                                  11/11/96         01/24/97

<CAPTION>
------------------------------------------------------------------------------------------------------------------------------------
                                                                                       1997                               1998
------------------------------------------------------------------------------------------------------------------------------------
WBS CODE                          TASK NAME                            J  F  M  A  M  J  J  A  S  O  N  D  J  F  M  A  M  J  J  A  S
------------------------------------------------------------------------------------------------------------------------------------
<S>       <C>                                                          <C>                                 <C>
6.0.7         Conduct Pilot Conversion

6.0.8         QA/QC

6.0.9         Pilot Review

6.0.10        Digitize Sample Circuitry to Support DMS

6.1         Full Conversion Project

6.1.0         Field-verify landbase accuracy

6.1.1         Determine Strategy for Improved Landbase

6.1.2         Field Data Capture Reqs. Workshop

6.1.3         Conduct Area Conversion (1)

6.1.4         Conduct Other Area Conversions

6.1.6         Manage Other Area Conversions

6.1.5         Full Conversion complete

7         DATA MIGRATION

7.0         Develop AM/FM/GIS migration specifications

7.1         Develop TLM data migration strategy

7.2         Review migration strategies with IES and Conversion Contract

7.3         Migrate TLM data to AM/FM/GIS database

7.4         Conduct AM/FM/GIS data migration
                                                                                                         [BAR CHART]
8         CORE PRODUCT CONFIGURATION DEV. REL.

8.0         CAD/MDT Dev. Releases (POC)

8.0.0         Core Product Configuration

8.0.1         Core Product Customization

8.0.2         CAD/MDT POC system available

8.1         AM/FM/GIS Dev. Releases (POC)

8.1.0         Core Product Configuration

8.1.1         Core Product Customization

8.1.2         AM/FM/GIS POC system available

8.2         DMS Dev. Releases (POC)

8.2.0         Core Product Configuration

8.2.1         Core Product Customization

8.2.2         DMS POC system available

8.2.3         Configure with test data

8.3         WMS Dev. Releases (POC)

8.3.0         Core Product Configuration
</TABLE>

                                  PAGE# 2 OF 5
<PAGE>   51
          SCHEDULE F               PROJECT NAME: IES VISION IMPACT

<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------------------------------
WBS CODE                    TASK NAME                                                    SCHED START         SCHED FIN
----------------------------------------------------------------------------------------------------------------------
<S>           <C>                                                                        <C>                <C>
8.3.1                Core Product Customization                                            01/27/97          04/11/97

8.3.2                POC (CU's, MU's, standard designs) data creation                      02/10/97          05/16/97

8.3.3                WMS POC system available                                              05/16/97          05/16/97

8.4           Integration Dev. Releases (POC)                                              10/18/96          07/07/97

8.4.0                Middleware Set-up                                                     10/18/96          12/02/96

8.4.1                CIS Interfaces                                                        12/03/96          07/07/97

8.4.1.0                    Conduct CIS Interface workshop                                  12/03/96          12/04/96

8.4.1.1                    CIS to AM/FM/GIS                                                12/05/96          02/17/97

8.4.1.2                    IES SME participate in development                              12/05/96          12/11/96

8.4.1.3                    Call Center to CAD (new work request info-non outage)           12/05/96          02/17/97

8.4.1.4                    IES SME participate in development                              12/05/96          12/11/96

8.4.1.5                    Call Center to DMS (outage customer ID)                         03/07/97          05/30/97

8.4.1.6                    IES SME participate in development                              03/07/97          03/13/97

8.4.1.7                    CAD to Call Center (scheduling opportunities)                   12/19/96          03/03/97

8.4.1.8                    IES SME participate in development                              12/19/96          12/27/96

8.4.0.9                    DMS to Call Center (outage status)                              04/25/97          07/07/97

8.4.1.10                   IES SME participate in development                              04/25/97          05/01/97

8.4.2                WMS Interfaces                                                        02/06/97          06/23/97

8.4.2.0                    Conduct WMS Interface workshop                                  02/06/97          02/07/97

8.4.2.1                    WMS to AM/FM/GIS (work requests and status)                     02/10/97          04/18/97

8.4.2.2                    AM/FM/GIS to WMS (design data)                                  03/10/97          05/16/97

8.4.2.3                    AM/FM/GIS to WMS (as built data)                                03/10/97          05/16/97

8.4.2.4                    CAD to WMS (new work request for design-if managed in both)     02/10/97          04/18/97

8.4.2.5                    WMS to MMIS (material needs)                                    04/14/97          06/23/97

8.4.2.6                    MMIS to WMS (material items lists and costs)                    04/14/97          06/23/97

8.4.2.7                    WMS to Prop Acct (property unit info)                           04/14/97          06/23/97

8.4.3                CAD to DMS (crew assigned/location)                                   03/07/97          05/15/97

8.4.4                AM/FM/GIS to DMS (landbase and facilities)                            01/24/97          03/06/97

9         CORE PRODUCTION SYSTEM REFINEMENTS DEV. REL.                                     05/16/97          04/08/98

9.0           MDT Dev. Rel. (core production)                                              05/16/97          08/11/97

9.1           AM/FM/GIS Dev. Rel. (core production)                                        05/19/97          01/07/98

9.2           DMS Dev. Rel. (core production)                                              07/08/97          10/28/97

9.3           WMS Dev. Rel. (core production)                                              05/19/97          11/12/97

9.4           Integration Dev. Rel. (core production)                                      08/12/97          04/08/98

<CAPTION>
------------------------------------------------------------------------------------------------------------------------------
                                                                       1996                                1997
------------------------------------------------------------------------------------------------------------------------------
WBS CODE                    TASK NAME                                  J  J  A  S  O  N  D  J  F  M  A  M  J  J  A  S  O  N  D
------------------------------------------------------------------------------------------------------------------------------
<S>           <C>                                                      <C>                                 <C>
8.3.1                Core Product Customization

8.3.2                POC (CU's, MU's, standard designs) data creation

8.3.3                WMS POC system available

8.4           Integration Dev. Releases (POC)

8.4.0                Middleware Set-up

8.4.1                CIS Interfaces

8.4.1.0                    Conduct CIS Interface workshop

8.4.1.1                    CIS to AM/FM/GIS                                                [BAR CHART]

8.4.1.2                    IES SME participate in development

8.4.1.3                    Call Center to CAD (new work request info-non outage)

8.4.1.4                    IES SME participate in development

8.4.1.5                    Call Center to DMS (outage customer ID)

8.4.1.6                    IES SME participate in development

8.4.1.7                    CAD to Call Center (scheduling opportunities)

8.4.1.8                    IES SME participate in development

8.4.0.9                    DMS to Call Center (outage status)

8.4.1.10                   IES SME participate in development

8.4.2                WMS Interfaces

8.4.2.0                    Conduct WMS Interface workshop

8.4.2.1                    WMS to AM/FM/GIS (work requests and status)

8.4.2.2                    AM/FM/GIS to WMS (design data)

8.4.2.3                    AM/FM/GIS to WMS (as built data)

8.4.2.4                    CAD to WMS (new work request for design-if managed in both)

8.4.2.5                    WMS to MMIS (material needs)

8.4.2.6                    MMIS to WMS (material items lists and costs)

8.4.2.7                    WMS to Prop Acct (property unit info)

8.4.3                CAD to DMS (crew assigned/location)

8.4.4                AM/FM/GIS to DMS (landbase and facilities)

9         CORE PRODUCTION SYSTEM REFINEMENTS DEV. REL.

9.0           MDT Dev. Rel. (core production)

9.1           AM/FM/GIS Dev. Rel. (core production)

9.2           DMS Dev. Rel. (core production)

9.3           WMS Dev. Rel. (core production)

9.4           Integration Dev. Rel. (core production)

<CAPTION>
-------------------------------------------------------------------------------------------------
                                                                                 1998
-------------------------------------------------------------------------------------------------
WBS CODE                    TASK NAME                                  J  F  M  A  M  J  J  A  S
-------------------------------------------------------------------------------------------------
<S>           <C>                                                      <C>
8.3.1                Core Product Customization

8.3.2                POC (CU's, MU's, standard designs) data creation

8.3.3                WMS POC system available

8.4           Integration Dev. Releases (POC)

8.4.0                Middleware Set-up

8.4.1                CIS Interfaces

8.4.1.0                    Conduct CIS Interface workshop

8.4.1.1                    CIS to AM/FM/GIS                                                [BAR CHART]

8.4.1.2                    IES SME participate in development

8.4.1.3                    Call Center to CAD (new work request info-non outage)

8.4.1.4                    IES SME participate in development

8.4.1.5                    Call Center to DMS (outage customer ID)

8.4.1.6                    IES SME participate in development

8.4.1.7                    CAD to Call Center (scheduling opportunities)

8.4.1.8                    IES SME participate in development

8.4.0.9                    DMS to Call Center (outage status)

8.4.1.10                   IES SME participate in development

8.4.2                WMS Interfaces

8.4.2.0                    Conduct WMS Interface workshop

8.4.2.1                    WMS to AM/FM/GIS (work requests and status)

8.4.2.2                    AM/FM/GIS to WMS (design data)

8.4.2.3                    AM/FM/GIS to WMS (as built data)

8.4.2.4                    CAD to WMS (new work request for design-if managed in both)

8.4.2.5                    WMS to MMIS (material needs)

8.4.2.6                    MMIS to WMS (material items lists and costs)

8.4.2.7                    WMS to Prop Acct (property unit info)

8.4.3                CAD to DMS (crew assigned/location)

8.4.4                AM/FM/GIS to DMS (landbase and facilities)

9         CORE PRODUCTION SYSTEM REFINEMENTS DEV. REL.

9.0           MDT Dev. Rel. (core production)

9.1           AM/FM/GIS Dev. Rel. (core production)

9.2           DMS Dev. Rel. (core production)

9.3           WMS Dev. Rel. (core production)

9.4           Integration Dev. Rel. (core production)
</TABLE>

                                PAGE# 3 OF 5

<PAGE>   52

<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------------------------
WBS CODE                         TASK NAME                                         SCHED START        SCHED FIN
----------------------------------------------------------------------------------------------------------------
<S>                 <C>                                                            <C>              <C>
9.5                       Conduct integrated production system test                 01/08/98          01/28/98

10                  EXTENDED FUNCTIONALITY DEV. RELEASES                            02/05/98          07/31/98

10.0                      MDT Dev. Rel. (extended functionality)                    04/09/98          05/20/98

10.1                      AM/FM/GIS Dev. Rel. (extended functionality)              02/05/98          07/10/98

10.2                      DMS Dev. Rel. (extended functionality)                    02/11/98          05/19/98

10.3                      WMS Dev. Rel. (extended functionality)                    02/26/98          04/29/98

10.4                      Integration Dev. Rel. (Extended functionality)            04/02/98          07/31/98

11                  SYSTEM INTEGRATION MANAGEMENT                                   11/11/96          03/24/97

11.0                      Convergent Group Staging                                  11/11/96          11/26/96

11.1                      Communication Link Setup/Install                          11/27/96          01/24/97

11.2                      Site preparations                                         11/27/96          12/10/96

11.3                      Hardware installation/configuration                       12/11/96          12/17/96

11.4                      Core software installation/configuration                  12/03/96          03/24/97

11.5                      Develop software distribution plan                        12/05/96          12/18/96

11.6                      Test software distribution plan                           12/19/96          01/06/97

11.7                      Conduct Incremental Installations (TBD)                   03/24/97          03/24/97

12                  SYSTEM INTEGRATION TESTING (PROCESS ORIENTED)                   06/13/97          02/04/98

12.0                      Develop production test plan                              06/13/97          06/13/97

12.1                      Conduct systems testing with IES                          01/08/98          02/04/98

12.1.0                           Execute test scripts                               01/08/98          01/21/98

12.1.1                           Address discrepancies/issues                       01/22/98          02/04/98

12.2                      Integrated system approval                                02/04/98          02/04/98

13                  TRAINING                                                        12/18/96          01/12/98

13.0                      Develop training plan/schedule                            06/16/97          09/09/97

13.1                      Conduct training                                          12/18/96          01/12/98

13.1.0                           System level training (OS, RDBMS)                  12/18/96          12/26/96

13.1.1                           Core POC system training                           02/10/97          06/24/97

13.1.2                           Core production System training                    08/12/97          01/12/98

13.1.3                           System software maintenance training               06/25/97          06/26/97

14                  DELIVERABLE MILESTONES                                          02/07/97          05/18/98

14.0                      Resource Coordinators begin using CAD                     02/07/97          02/07/97

14.1                      Build CU's, MU's, Standard Designs                        02/10/97          02/10/97

14.2                      Begin Automated Work Initiation & Tracking                02/10/97          02/10/97

<CAPTION>
------------------------------------------------------------------------------------------------------------------------------
                                                                       1996                                1997
------------------------------------------------------------------------------------------------------------------------------
WBS CODE                    TASK NAME                                  J  J  A  S  O  N  D  J  F  M  A  M  J  J  A  S  O  N  D
------------------------------------------------------------------------------------------------------------------------------
<S>           <C>                                                      <C>                                 <C>
9.5                       Conduct integrated production system test

10                  EXTENDED FUNCTIONALITY DEV. RELEASES

10.0                      MDT Dev. Rel. (extended functionality)

10.1                      AM/FM/GIS Dev. Rel. (extended functionality)

10.2                      DMS Dev. Rel. (extended functionality)

10.3                      WMS Dev. Rel. (extended functionality)

10.4                      Integration Dev. Rel. (Extended functionality

11                  SYSTEM INTEGRATION MANAGEMENT

11.0                      Convergent Group Staging

11.1                      Communication Link Setup/Install

11.2                      Site preparations

11.3                      Hardware installation/configuration

11.4                      Core software installation/configuration

11.5                      Develop software distribution plan

11.6                      Test software distribution plan

11.7                      Conduct Incremental Installations (TBD)
                                                                                     [BAR CHART]
12                  SYSTEM INTEGRATION TESTING (PROCESS ORIENTED)

12.0                      Develop production test plan

12.1                      Conduct systems testing with IES

12.1.0                           Execute test scripts

12.1.1                           Address discrepancies/issues

12.2                      Integrated system approval

13                  TRAINING

13.0                      Develop training plan/schedule

13.1                      Conduct training

13.1.0                           System level training (OS, RDBMS)

13.1.1                           Core POC system training

13.1.2                           Core production System training

13.1.3                           System software maintenance training

14                  DELIVERABLE MILESTONES

14.0                      Resource Coordinators begin using CAD

14.1                      Build CU's, MU's, Standard Designs

14.2                      Begin Automated Work Initiation & Tracking

<CAPTION>
-------------------------------------------------------------------------------------------------
                                                                                 1998
-------------------------------------------------------------------------------------------------
WBS CODE                    TASK NAME                                  J  F  M  A  M  J  J  A  S
-------------------------------------------------------------------------------------------------
<S>           <C>                                                      <C>
9.5                       Conduct integrated production system test

10                  EXTENDED FUNCTIONALITY DEV. RELEASES

10.0                      MDT Dev. Rel. (extended functionality)

10.1                      AM/FM/GIS Dev. Rel. (extended functionality)

10.2                      DMS Dev. Rel. (extended functionality)

10.3                      WMS Dev. Rel. (extended functionality)

10.4                      Integration Dev. Rel. (Extended functionality

11                  SYSTEM INTEGRATION MANAGEMENT

11.0                      Convergent Group Staging

11.1                      Communication Link Setup/Install

11.2                      Site preparations

11.3                      Hardware installation/configuration

11.4                      Core software installation/configuration

11.5                      Develop software distribution plan

11.6                      Test software distribution plan

11.7                      Conduct Incremental Installations (TBD)
                                                                                [BAR CHART]
12                  SYSTEM INTEGRATION TESTING (PROCESS ORIENTED)

12.0                      Develop production test plan

12.1                      Conduct systems testing with IES

12.1.0                           Execute test scripts

12.1.1                           Address discrepancies/issues

12.2                      Integrated system approval

13                  TRAINING

13.0                      Develop training plan/schedule

13.1                      Conduct training

13.1.0                           System level training (OS, RDBMS)

13.1.1                           Core POC system training

13.1.2                           Core production System training

13.1.3                           System software maintenance training

14                  DELIVERABLE MILESTONES

14.0                      Resource Coordinators begin using CAD

14.1                      Build CU's, MU's, Standard Designs

14.2                      Begin Automated Work Initiation & Tracking
</TABLE>

                                  PAGE# 4 OF 5
<PAGE>   53

<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------
                                                                     1996
----------------------------------------------------------------------------------------
WDS CODE              TASK NAME            SCHED START   SCHED FIN   J  J  A  S  O  N  D
----------------------------------------------------------------------------------------
<S>          <C>                           <C>            <C>        <C>
14.3    Work Order Design Available         05/16/97      O5/16/97

14.4    Begin Distribution Opns Training    06/12/97      06/12/97

4.5     DMS Available for DDC               07/03/97      07/03/97
                                                                         [BAR CHART]
14.6    Outage Analysis Available           06/12/97      06/12/97

14.7    Service Territory Converted         05/18/98      05/18/98

14.8    Production integration completed    01/07/98      01/07/98

<CAPTION>
----------------------------------------------------------------------------------------------------------------------------------
                                                                                    1997                                1998
----------------------------------------------------------------------------------------------------------------------------------
WDS CODE              TASK NAME            SCHED START   SCHED FIN   J  F  M  A  M  J  J  A  S  O  N  D  J  F  M  A  M  J  J  A  S
----------------------------------------------------------------------------------------------------------------------------------
<S>          <C>                           <C>            <C>        <C>                                 <C>
14.3    Work Order Design Available         05/16/97      O5/16/97

14.4    Begin Distribution Opns Training    06/12/97      06/12/97

4.5     DMS Available for DDC               07/03/97      07/03/97
                                                                                              [BAR CHART]
14.6    Outage Analysis Available           06/12/97      06/12/97

14.7    Service Territory Converted         05/18/98      05/18/98

14.8    Production integration completed    01/07/98     01/07/98
</TABLE>

                                  PAGE# 5 OF 5<PAGE>   1
Citizens Utilities Company
Convergent Group Corporation Professional Services Agreement
--------------------------------------------------------------------------------

                                                                   EXHIBIT 10.19

                                    AGREEMENT

                                     BETWEEN

                           CITIZENS UTILITIES COMPANY

                                       AND

                          CONVERGENT GROUP CORPORATION

                            (CVG REFERENCE NO. U181)

       This AGREEMENT (hereinafter referred to as "Agreement") is made and
entered into on _____________, 1997, by and between Citizens Utilities Company
(hereinafter referred to as "CLIENT"), located at High Ridge Park, Stamford, CT
06905-1390, and Convergent Group Corporation (hereinafter referred to as
"CONSULTANT"), located at 6200 S. Syracuse Way, Englewood, CO 80111, for the
sale of hardware manufactured by third parties hereto (hereinafter referred to
as "Hardware"), the licensing and maintenance of Third-Party Application
Software and Operating System Software (hereinafter referred to as "Software"),
associated documentation (hereinafter referred to as "Documentation"), and
professional Consultant Services required to provide technical and management
consulting expertise to CLIENT for custom application software and custom
application software systems as well as provide technical services related
thereto as defined in Attachments, attached hereto and incorporated herein by
this reference.

       In consideration of the covenants and agreements contained herein and
other good and valuable consideration, the sufficiency of which is hereby
mutually acknowledged, the parties hereto agree as follows:

1.     STATEMENT OF SERVICES - SCOPE OF WORK

1.1    CONSULTANT agrees to provide CLIENT with professional services of
CONSULTANT's staff to perform management and technical consulting tasks for the
implementation of the DESIGN GIS Project in accordance with Attachment A - Scope
of Work, which is attached hereto and incorporated herein by this reference.

1.2    All work shall be performed in accordance with sound and generally
accepted professional practices and industry standards by professional,
managerial and administrative personnel fully qualified in the respective
professional disciplines required.

Proprietary and Confidential                           Convergent Group/FGM1074F

                                      -1-
<PAGE>   2
Citizens Utilities Company
Convergent Group Corporation Professional Services Agreement
--------------------------------------------------------------------------------

2.     SOLE AGREEMENT

2.1    This Agreement and the Attachments hereto constitute the entire agreement
and understanding of the parties with respect to the subject matter hereof and
supersedes and replaces all prior agreements and understandings, whether oral or
written. Additional agreements in writing between the parties, such as proposals
from CONSULTANT and written acceptances by CLIENT, may be attached as
Attachments to this Agreement in order to specifically define CONSULTANT's
participation on individual projects for which CLIENT shall engage CONSULTANT to
provide such services which agreements shall be herein incorporated and made a
part hereof by this reference. This Agreement may not be changed or terminated
verbally by, or on behalf of, either party.

3.     CONSULTANT EMPLOYEES

3.1    CONSULTANT personnel shall be and will remain at all times, during this
Agreement, employees of CONSULTANT. CLIENT shall not be responsible for any
payments due CONSULTANT employees on account of, or in connection with, this
Agreement.

3.2    CONSULTANT employees assisting CLIENT under this Agreement who are found,
in CLIENT's sole opinion, to be unsatisfactory for services to be performed
hereunder, shall be removed by CONSULTANT immediately upon receipt of written
notice from CLIENT. Such employee shall be replaced with another CONSULTANT
employee satisfactory to CLIENT as soon as possible.

4.     PATENTS AND INVENTIONS

4.1    The CONSULTANT has developed numerous proven proprietary materials which
provide the methodologies for the development of the Deliverables. The use of
these materials contributes to the cost-effectiveness of CONSULTANT services.
CLIENT agrees that CONSULTANT shall own all such products, materials, and
methodologies and that CLIENT shall have or obtain no rights in such proprietary
products, materials, and methodologies except pursuant to a separate written
agreement executed by the parties. CLIENT understands that CONSULTANT
proprietary costs analysis and strategic planning models and facilities database
models and designs or certain software products may be used under this Agreement
and CLIENT agrees not to exhibit, distribute, or otherwise disclose any such
proprietary methods and materials to external or third parties without the prior
approval in writing from CONSULTANT. The CONSULTANT shall continue to market,
distribute, make derivative works from and sell similar work to other companies
without further notice to nor consent from CLIENT. Nothing in this Agreement
shall restrict or prohibit CONSULTANT's right to use concepts, techniques, and
know-how used or developed in the course of performing these services.

4.2    CONSULTANT shall be the owner of copyright or other intellectual property
rights in such Deliverable Products. CONSULTANT grants to CLIENT a perpetual
unrestricted, royalty-free license to reproduce and use, for CLIENT's internal
purposes only, any materials developed for CLIENT related to this Agreement, not
including Third-Party Software Licenses. CLIENT

Proprietary and Confidential                           Convergent Group/FGM1074F

                                      -2-
<PAGE>   3
Citizens Utilities Company
Convergent Group Corporation Professional Services Agreement
--------------------------------------------------------------------------------

agrees not to exhibit, distribute, or otherwise disclose any proprietary
software, methods, or materials to external or third parties without the prior
approval in writing from CONSULTANT. This section shall survive termination or
expiration of this Agreement for any reason.

4.3    All Third-Party Software licenses will be executed between the CLIENT and
the Third-Party Software vendor. Grants of licenses for all Third-Party Software
licenses will be transferred from the Third-Party to the CLIENT in accordance
with a mutually acceptable license agreement.

5.     TOTAL COST AND FEES

5.1    The total price for the implementation of project to support the CLIENT's
business objectives is $17,806,739.00 which is comprised of a Fixed Price
component as defined in Attachment B - Fixed Price Payments and an Estimated
component as defined in Attachment C - Billing Terms for Estimated Work.

5.2    The Firm Fixed price is $7,346,739.00 and includes the delivery of
Services and Land and Facility Data Conversion. The description of the tasks
associated with fixed work effort is contained in Attachment A - Scope of Work
and the billing schedule for the fixed costs and fees is contained in Attachment
B - Fixed Price Payments.

5.3    The total estimated costs and fees are $10,460,000.00. These costs and
fees include all estimated expenses for the project (expenses will be billed to
CLIENT at cost plus a three and one-half percent (3 1/2%) administrative fee),
custom applications, system integration development, Hardware and Third-Party
Software as further defined in Attachment C - Billing Terms for Estimated Work.
Incidental Expenses shall include, without limitation, the following: air
transportation, auto rental, rail transportation, cabs, reasonable lodging and
meals, express air shipments, data transmittal, telephone calls, and copying
costs. The description of the tasks associated with the estimated work effort is
contained in Attachment A - Scope of Work and the billing terms for the
estimated cost and fees are contained in Attachment C - Billing Terms for
Estimated Work.

5.4    The cost and fees set forth in Attachment B - Fixed Price Payments and
Attachment C - Billing Terms for Estimated Work are exclusive of the following
and CLIENT agrees to:

       5.4.1  enter into a contract amendment for any CLIENT-directed change of
              scope in accordance with Clause 11.1.2 of this Agreement.

       5.4.2  all taxes, however designated, paid or payable by hereunder,
              exclusive of taxes based on the net income of CONSULTANT. If any
              charges under this Agreement are exempt from sales or use tax
              liability, CLIENT shall provide to CONSULTANT, upon execution of
              this Agreement, evidence of tax exemption acceptable to the
              relevant taxing authority.

Proprietary and Confidential                           Convergent Group/FGM1074F

                                      -3-
<PAGE>   4
Citizens Utilities Company
Convergent Group Corporation Professional Services Agreement
--------------------------------------------------------------------------------

6.     PAYMENT

6.1    The Firm Fixed Price payment schedule is contained in Attachment B -
Fixed Price Payments which is attached hereto and incorporated herein by this
reference. The Estimated Cost and Fees billing terms are delineated in
Attachment C - Billing Terms for Estimated Work which is attached hereto and
incorporated herein by this reference.

6.2    In the event that an invoice remains unpaid for thirty (30) days after
the date it is delivered to CLIENT, the CONSULTANT shall charge CLIENT interest
at the rate of 1 1/2 percent per month on the unpaid balance of said invoice
from date of its delivery to CLIENT.

6.3    All invoices will be addressed to:

       Mr. Karl Weber
       Louisiana Gas Service Co.
       1233 Westbank Expressway
       P.O. Box 433
       Harvey, LA  70059

6.4    CLIENT will make payments using Electronic Funds Transfers using the bank
and account information contained in Attachment F - Electronic Funds Transfer.

7.     TERM; TERMINATION OF AGREEMENT

7.1    This Agreement shall remain in full force and effect until the earlier of
(a) the services to be performed hereunder are completed or (b) earlier
termination, as provided below.

7.2    Termination for Default. If either party shall at any time commit any
material breach of any covenant, or warranty under this Agreement, and (i) shall
fail to cure such breach within thirty (30) days of written notice of such
breach or (ii) if it is not curable within thirty (30) days of written notice,
shall fail to diligently commence to cure it within thirty (30) days of notice,
the defaulted party may at its option and in addition to any other remedies to
which it is entitled, terminate this Agreement by written notice.

7.3    Except as may be prohibited by the U.S. bankruptcy laws, in the event of
either party's insolvency or inability to pay debts as they become due,
voluntary or involuntary bankruptcy proceedings by or against a party hereto, or
appointment of a receiver or assignee for the benefit of creditors, the other
party may terminate this Agreement by written notice.

7.4    CONSULTANT shall have the right to terminate this Agreement by written
notice to CLIENT upon CLIENT's failure to pay CONSULTANT any nondisputed amount
due hereunder within sixty (60) days after such amount was due and payable. Any
disputed amounts shall be resolved in accordance with Section 32, Dispute
Resolution Arbitration herein.

Proprietary and Confidential                           Convergent Group/FGM1074F

                                      -4-
<PAGE>   5
Citizens Utilities Company
Convergent Group Corporation Professional Services Agreement
--------------------------------------------------------------------------------

7.5    If this Agreement is terminated after CONSULTANT has commenced any work,
mobilization, or other off-site activities under this Agreement, CONSULTANT will
be paid for all outstanding invoices and its actual incurred costs and legally
committed accrued costs from date of termination, including reasonable
demobilization and project costs associated with vacating the site, determined
in accordance with generally accepted accounting principles consistently
applied..

7.6    All license rights granted shall cease upon any termination or
cancellation of this Agreement. Within fifteen (15) days after termination of
the license rights granted herein, or termination or cancellation of this
Agreement for any reason, CLIENT agrees to certify to CONSULTANT in writing that
the original and all copies of the Software and Documentation, in any form, have
been destroyed.

8.     CONFIDENTIALITY OF INFORMATION

8.1    The parties acknowledge that in the course of this Agreement they will
have access to, and/or will be in possession of, Confidential Information of the
other. "Confidential Information" shall mean information regarded by that party
as confidential, including, but not limited to, information relating to its
past, present, or future research, development, or business affairs; future
project purchases; any proprietary products, materials, or methodologies; all
items prepared for and submitted to CLIENT in connection with work performed
under this Agreement, including drafts and associated material; and any other
information marked or, in the case of information verbally disclosed, verbally
designated as confidential at the time of disclosure by that party.

8.2    Each party shall hold in confidence, in the same manner as it holds its
own confidential information of like kind, all Confidential Information of the
other to which it may have access hereunder. Access to Confidential Information
shall be restricted to those of the disclosing party's personnel, subcontractors
and other agents with a need to know and engaged in a permitted use.
CONSULTANT's deliverable products marked confidential shall neither be exhibited
nor distributed in any way to parties external to CLIENT, CLIENT's personnel,
subcontractors, and agents (including, but not limited to, Cinergy consultants)
not engaged in the performance of this Agreement.

8.3    The foregoing shall not prohibit or limit either party's use of
information including, but not limited to, ideas, concepts, know-how,
techniques, and methodologies which (i) are or become generally available to and
known by the public (other than as a result of an unpermitted disclosure
directly or indirectly by the receiving party hereunder or its agents,
representatives, or advisors), (ii) is or becomes available to it on a
nonconfidential basis from a source other than the furnishing party or its
affiliates, advisors, agents, or representatives, provided that such source is
not and was not bound by a confidentiality agreement with or other obligation of
secrecy to the furnishing party, (iii) has already been or is hereafter
independently acquired or developed by it without violating any confidentiality
agreement or other obligation of secrecy to the furnishing party, or (iv) is
required by law or regulation to be disclosed, provided, however,

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that it shall give the furnishing party reasonable advance notice of such
requirement so that the furnishing party may seek appropriate legal relief
against such disclosure.

8.4    The parties hereto agree and acknowledge that any such Confidential
Information shall be considered for all purposes confidential and privileged
information under any local, state, or federal law and such Confidential
Information shall not be released pursuant to any local, state, or federal act,
law, or statute concerning "freedom of information."

8.5    This section shall survive termination or expiration of this Agreement
for any reason for a period of five (5) years.

8.6    Each Party acknowledges and agrees that the provisions of this section
are essential to both CONSULTANT and CLIENT and are reasonable and necessary to
protect the legitimate interests of both Parties and that the damages sustained
by either Party as a result of a breach of the agreements contained herein will
subject the damaged Party to immediate, irreparable harm and damage, the amount
of which, although substantial, could not be reasonably ascertainable, and that
recovery of damages at law will not be an adequate remedy. Therefore, both
Parties agree that the damaged Party, in addition to any other remedy it may
have under this Agreement or at law, shall be entitled to injunctive and other
equitable relief to prevent or curtail any breach of any provision of this
section. The breaching Party waives any right to the posting of a bond in the
event of an issuance of a temporary restraining order, preliminary injunction,
or permanent injunction upon the issuance of said order by a court of competent
jurisdiction.

8.7    Upon termination or expiration of this Agreement for any reason, both
Parties shall return to the other Party any confidential information or
proprietary information belonging to the other Party which is in their
possession, except that CONSULTANT shall be entitled to retain a duplicate set
of any configuration and/or customized Software delivered by CONSULTANT in
connection with this Agreement. This section shall survive termination or
expiration of this Agreement for any reason.

9.     EQUAL EMPLOYMENT

9.1    In performing the services hereunder, CONSULTANT agrees to comply with
all applicable local, state, and federal laws, regulations, and orders relating
to fair and equal employment opportunity practices and policies.

10.    NON-SOLICITATION OF CONSULTANT OR CLIENT EMPLOYEES

10.1   The Parties agree that neither Party will during the term of this
Agreement and for a period continuing for 24 months after the expiration or
termination of this Agreement, for any reason, directly or indirectly solicit,
influence, entice, or encourage any person who is then or had been within one
(1) year of such action an employee of the other Party to cease his or her
relationship with his or her employer, or otherwise interfere with, disrupt, or
attempt to disrupt any past, present, or prospective relationship, contractual
or otherwise, between the other Party and any of its employees.

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10.2   CLIENT and CONSULTANT further agree that neither Party will not, during
the term of this Agreement and for a period continuing for 24 months thereafter,
hire or attempt to hire, whether as an employee, consultant, or otherwise, any
person who was employed by the other Party at any time during the term of this
Agreement.

10.3   Each Party acknowledges and agrees that the provisions of this section
are essential to both CONSULTANT and CLIENT and are reasonable and necessary to
protect the legitimate interests of both Parties and that the damages sustained
by either Party as a result of a breach of the agreements contained herein will
subject the damaged Party to immediate, irreparable harm and damage, the amount
of which, although substantial, could not be reasonably ascertainable, and that
recovery of damages at law will not be an adequate remedy. Therefore, both
Parties agree that the damaged Party, in addition to any other remedy it may
have under this Agreement or at law, shall be entitled to injunctive and other
equitable relief to prevent or curtail any breach of any provision of this
section. The breaching Party waives any right to the posting of a bond in the
event of an issuance of a temporary restraining order, preliminary injunction,
or permanent injunction upon the issuance of said order by a court of competent
jurisdiction.

10.4   This section shall survive termination or expiration of this Agreement
for any reason.

10.5   If the scope of any restriction contained in this section is too broad to
permit enforcement of such restriction to its fullest extent, then such
restriction shall be enforced to the maximum extent permitted by law and CLIENT
hereby consents and agrees that the scope may be judicially modified in any
proceeding brought to enforce such restriction.

11.    SPECIAL CONDITIONS

11.1   The following conditions are incorporated into the understandings
associated with this Agreement:

       11.1.1 If the project scope of work is requested to be increased or
       changed by CLIENT in such a manner as to require additional labor or
       expenses, and CONSULTANT agrees to such changes, the parties will adjust
       both scope and cost and fees, or other affected terms through written
       amendment to this Agreement.

       11.1.2 CLIENT and CONSULTANT reserve the right to subsequently amend this
       Agreement to include additional services or associated products.
       Compensation for additional services or products will be as agreed by
       CLIENT and CONSULTANT and may be incorporated as Attachments to this
       Agreement in accordance with Attachment E - Change Order Procedure. All
       work to be accomplished will be defined in written change orders approved
       by the parties. The change orders will define the objectives to be
       addressed, the scope of services to be provided, the products to be
       delivered, the schedule to be met, special considerations (as
       appropriate) and a change order price estimate or fixed fee. The
       CONSULTANT will be reimbursed as provided in the change order.

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       11.1.3 CONSULTANT's project team members will have the opportunity and
       authority to contact personnel at CLIENT directly in the performance of
       technical consulting duties.

12.    ADDRESSES OF PARTIES TO AGREEMENT

12.1   All correspondence, contracts, and communications between the parties to
this Agreement should be made to the following:

       Louisiana Gas Service Co.
       1233 Westbank Expressway
       P.O. Box 433
       Harvey, LA  70059

       Attn:  Karl Weber

       Telephone: (504) 374-7476
       Facsimile: (504) 374-7679

       Convergent Group Corporation
       6200 South Syracuse Way, Suite 200
       Englewood, CO  80111

       Attn:  David J. Stewart

       Telephone: (303)  741-8400
       Facsimile: (303)  741-8401

12.2   All notices required or permitted hereunder shall be sufficient if given
in writing and if delivered personally, by overnight courier, or by certified
mail, return receipt requested, postage prepaid, addressed to the CONSULTANT or
CLIENT, as the case may be, at the addresses set forth above or at such other
address as such party shall have designated in the manner provided in this
section. Notice shall be deemed given on the date of receipt, in the case of
personal delivery, or on the delivery or refusal date, as specified on the
return receipt, in the case of overnight courier or certified mail.

13.    CONSULTANT TRAINING

13.1   Subject to a mutually agreed to schedule, CONSULTANT will provide
training to the CLIENT in the use of the CONSULTANT Software listed in
Attachment A - Scope of Work. The extent of such training, number of CLIENT
personnel to be trained, location of such training, and the appropriate price
are reflected in the Attachments.

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14.    HARDWARE DELIVERY/INSTALLATION

14.1   Some Hardware will initially be delivered to CONSULTANT to be used for
planning and development efforts. During the period that the Hardware is located
at CONSULTANT's facility, Risk of Loss shall be with CONSULTANT and CONSULTANT
is authorized by CLIENT to install, maintain, and request warranty remedies from
the Third-Party Hardware manufacturer during the period it is located at
CONSULTANT's facility.

14.2   Risk of Loss to Hardware and Software shall pass to CLIENT upon delivery
of same to CLIENT's installation site. Subject to manufacturer warranties, the
Hardware and Software will be deemed accepted when used by CONSULTANT (if
initially delivered to CONSULTANT) or by CLIENT (if initially delivered to
CLIENT installation site) in the ordinary course of business.

15.    HARDWARE MAINTENANCE

15.1   CONSULTANT may provide Hardware Maintenance to CLIENT. The terms of the
Hardware Maintenance will be in accordance with mutually agreed upon Maintenance
provisions.

16.    SOFTWARE MAINTENANCE

16.1   CONSULTANT will procure Third-Party Software Maintenance through the end
of this Agreement based upon a mutually agreed upon schedule of costs and fees
between CLIENT and CONSULTANT. Third-Party Software Maintenance will be adjusted
quarterly until all Third-Party Software Maintenance is totally synchronized at
the end of the contract. CONSULTANT will provide one (1) additional year of
Third-Party Software Maintenance to CLIENT upon the completion of the contract.
The terms of the Third-Party Software Maintenance will be in accordance with
mutually agreed upon maintenance provisions.

16.2   Custom Software Maintenance. CONSULTANT will provide custom application
software maintenance after the acceptance of each Development Release through
the completion of this Agreement. During the contract period of performance
maintenance for the Development Releases will be adjusted semi-annually until
maintenance is totally synchronized at contract completion. CONSULTANT will
provide customer software maintenance for one (1) additional year after contract
completion. Thereafter, maintenance shall be provided in a mutually agreed to
schedule of costs and fees between CLIENT and CONSULTANT. The terms of the
Software Maintenance will be in accordance with mutually agreed upon maintenance
provisions to be added at a later date.

17.    WARRANTY AND DISCLAIMER

17.1   CONSULTANT warrants that for ninety (90) days after the Installation Date
(i) any Hardware which is procured for CLIENT by CONSULTANT will be free from
defects in materials and workmanship (ii) any Third-Party Software which is
procured for CLIENT by CONSULTANT will perform substantially in compliance with
the Documentation provided by

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CONSULTANT for ninety (90) days after the Installation Date, and (iii) the
system integration will meet the requirements contemplated by the Scope of Work,
if any, as demonstrated by the successful completion of the mutually agreed upon
acceptance criteria.

17.2   CONSULTANT MAKES NO OTHER WARRANTIES OF ANY KIND EITHER EXPRESS OR
IMPLIED, INCLUDING, BUT NOT BY WAY OF LIMITATION, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE
HARDWARE, SOFTWARE, DOCUMENTATION, TECHNICAL INFORMATION, AND TECHNICAL
ASSISTANCE PROVIDED BY CONSULTANT PURSUANT TO THIS AGREEMENT.

18.    LIMIT OF LIABILITY

18.1   CONSULTANT's liability in respect to services provided under this
Agreement shall be limited to claims directly attributable only to the failure
of CONSULTANT's agents or employees to exercise the degree of skill and
performance normally exercised by duly qualified persons performing similar
functions. The amount of CONSULTANT's liability shall not exceed the total
amount of this Agreement. IN NO EVENT SHALL CONSULTANT, ITS EMPLOYEES OR AGENTS
BE LIABLE FOR LOSS OF EARNINGS, LOSS OF PROFITS, LOSS OF INTEREST, JUDGMENTS,
AWARDS, OR CONTRIBUTION THERETO, OR ANY OTHER SPECIAL, INDIRECT, OR
CONSEQUENTIAL DAMAGE, HOWEVER CAUSED.

19.    NEGLIGENCE

19.1   Each party shall be responsible for willful misconduct and negligent acts
or omissions of its agents and employees. Each party shall indemnify, hold
harmless, and defend the other from and against all liabilities for bodily
injury and property damage caused by the willful or negligent act or omission of
the indemnifying party or its agents or employees. This section shall survive
termination or expiration of this Agreement for any reason.

20.    LIMITATION OF REMEDIES

20.1   CONSULTANT's entire liability and the CLIENT's exclusive remedy in
respect to services and materials provided under this Agreement with the
exception of the Indemnity Agreement in Section 21, shall be that CONSULTANT
will, pursuant to applicable maintenance provisions, restore the Hardware to
working order if it should fail due to defects in materials and workmanship and
correct the Third-Party or Custom Software if it should fail to substantially
conform to the Documentation provided by CONSULTANT, during the period in which
CONSULTANT is providing maintenance services in accordance with Sections 15 and
16 herein. However, if CONSULTANT is unable to cure such defects, as CLIENT's
exclusive remedy, CONSULTANT will grant CLIENT a refund for the Hardware and/or
Third-Party or Custom Software involved, based upon its straight line
depreciated value over the life of the product as determined jointly by CLIENT
and CONSULTANT and accept its return.

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20.2   CONSULTANT's entire liability for damages for any cause whatsoever, and
regardless of the form of action, shall be limited to CLIENT's actual direct
damages not to exceed the amount paid to CONSULTANT under this Agreement for the
specific item that caused the damage or that is the subject matter of, or is
directly related to, the cause of action. This limitation is not applicable to
claims for patent, copyright, and trade secret infringement which claims are
covered by Section 21.

20.3   IN NO EVENT SHALL CONSULTANT, ITS OFFICERS, AGENTS, AND EMPLOYEES BE
LIABLE UNDER OR IN CONNECTION WITH THIS AGREEMENT UNDER ANY THEORY OF TORT,
CONTRACT, STRICT LIABILITY, OR OTHER LEGAL OR EQUITABLE THEORY FOR LOST PROFITS,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

21.    PATENTS, TRADEMARKS AND TRADE SECRET INFRINGEMENT INDEMNITY

21.1   CONSULTANT shall defend, at its expense, any action brought against
CLIENT to the extent that it is based upon a claim that any Hardware, Software,
or Documentation infringes a patent, copyright, or violates any Third-Party
trade secret or proprietary right and shall pay all costs and damages finally
awarded against CLIENT, provided that CONSULTANT is given prompt written notice
of such claim and is given information, reasonable assistance, and sole
authority to defend or settle the claim.

21.2   If any such action is brought, or in CONSULTANT opinion is likely to be
brought, then CONSULTANT may at its election (i) obtain for CLIENT the right to
continue using the Hardware, Software, or Documentation; (ii) replace or modify
such so that it becomes noninfringing; or, (iii) if such remedies are not
reasonably available, accept CLIENT's return of the Hardware, Software, or
Documentation, and grant CLIENT a refund for the Hardware, Software, or
Documentation involved, based upon its straight line depreciated value over the
life of the product as determined jointly by CLIENT and CONSULTANT.

21.3   CONSULTANT shall have no obligation under this section if the alleged
infringement or violation is based upon the use of the Hardware, Software, or
Documentation in combination with other hardware, software, or documentation not
furnished by CONSULTANT or if such claim arises from CONSULTANT compliance with
CLIENT's designs, specifications, or instructions, or from CLIENT's modification
of the Hardware, Software, or Documentation.

21.4   CONSULTANT shall have no liability for infringement of patents,
copyrights, or violation of trade secrets or proprietary rights except as
expressly provided in this section.

22.    GOVERNING LAW

       This Agreement will be governed by the laws of the State of Connecticut,
without regard to the conflicts of laws principles of such state.

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23.    ENFORCEMENT EXPENSES

23.1   In the event of a breach or threatened breach of any term or provision of
this Agreement, the nonbreaching party shall be entitled to all of its remedies
available at law or in equity and in addition shall be entitled to be reimbursed
for all of its costs and expenses in enforcing this Agreement, including, but
not limited to, reasonable attorneys' fees. This section shall survive
termination or expiration of this Agreement for any reason.

24.    ATTACHMENTS

24.1   The Attachments attached hereto form a part of and are incorporated
herein by this reference.

       Attachment A: Scope of Work
       Attachment B: Fixed-Price Payments
       Attachment C: Billing Terms for Estimated Work
       Attachment D: Project Assumptions
       Attachment E: Change Order Procedure
       Attachment F: Electronic Funds Transfer
       Attachment G: Project Schedule - TBD
       Attachment H: Deliverable Acceptance Procedures

25.    CAPTIONS AND HEADINGS

25.1   The captions and headings herein are for convenience only and in no way
shall be used in the interpretation or construction of this Agreement.

26.    WAIVER OF COMPLIANCE

26.1   Any failure by any Party hereto to enforce at any time any term or
condition of this Agreement shall not be considered a waiver of that Party's
right to later enforce each and every term and condition hereof.

27.    ASSIGNMENT; BINDING EFFECT

27.1   This Agreement may not be assigned by either Party hereto without the
prior written consent of the other Party which consent shall not be unreasonably
withheld. This Agreement shall be binding upon and inure to the benefit of each
of the Parties and its respective successors and permitted assigns.

28.    DELAYS

28.1   Any loss, damage, or delay in, or failure of, performance by CONSULTANT
shall not constitute a default hereunder be a ground for termination of this
Agreement, or give rise to any claims for damage against CONSULTANT if such
loss, damage, delay, or failure is attributable

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in whole or in part to any cause beyond the control of CONSULTANT. These causes
include, but are not limited to, acts or omissions of CLIENT causing delay, acts
of God or the public enemy, compliance with any order, decree, or request of any
governmental authority, fires, floods, explosions, accidents, riots, strikes,
labor difficulties, or other concerted acts of workmen, or any other cause not
within the reasonable control of CONSULTANT. In the event of the occurrence of
any such delay, the time for the performance by CONSULTANT of its services shall
be extended for a period of time equivalent to the time attributable to such
delay.

29.    SEVERABILITY

29.1   If any provision of this Agreement or the application thereof to any
party or circumstance shall be declared invalid, illegal, or unenforceable, the
remainder of this Agreement shall be valid and enforceable to the extent
permitted by applicable law. In such event, the parties shall use their best
efforts to replace the invalid or unenforceable provision with a provision that,
to the extent permitted by applicable law, achieves the purposes intended under
the invalid or unenforceable provision.

30.    INSURANCE

       During the term of this Agreement, CONSULTANT shall provide and maintain
at its own expense the following kinds of insurance with limits of liability as
set forth below:

<TABLE>
<CAPTION>
       Insurance                             Limits of Liability
       ---------                             -------------------
<S>                                          <C>
       Workman's Compensation                Statutory

       Commercial General Liability          $2,000,000

       Automobile Liability                  $1,000,000

       Excess Liability                      $10,000,000
</TABLE>

30.2   CONSULTANT agrees to provide CLIENT during the term of the Agreement with
a certificate of insurance evidencing the coverages required above naming CLIENT
as an additional insured under each such policy, with waiver of subrogation and
stating the policy numbers and inception and expiration dates of all policies.
This certificate of insurance shall also provide for 10 days prior notice to the
CLIENT in the event of cancellation of the policy. Said certificate shall be
furnished to CLIENT prior to the commencement of any work under this Agreement.

31.    INDEPENDENT CONTRACTOR STATUS

31.1   The parties to this Agreement are independent contractors, and none of
the provisions of this Agreement shall be interpreted or deemed to create any
relationship between such parties other than that of independent contractors.
Nothing contained in this Agreement shall be

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construed to create a relationship of employer and employees, master and
servant, principal and agent, or coventurers between CLIENT and CONSULTANT,
between CLIENT and any employee of CONSULTANT, or between CONSULTANT and any
employee of CLIENT. CLIENT shall have no right to control or direct the details,
manner, or means by which CONSULTANT performs the services hereunder, provided
that such services shall be performed to CLIENT's reasonable satisfaction. In
performing such services, CONSULTANT shall have no control over or management
authority with respect to CLIENT or its operations.

32.    DISPUTE RESOLUTION ARBITRATION

32.1   Any and all disputes arising out of or in connection with the execution,
interpretation, performance, or nonperformance of this Agreement or any other
certificate, agreement, or other instrument between, involving, or affecting the
parties (including the validity, scope, and enforceability of this arbitration
agreement) shall be solely and finally settled by a single arbitrator in
accordance with the Commercial Rules of the American Arbitration Association
(the "Rules"); provided, however, that in the event of conflict between the
Rules and the terms of this Agreement, the terms of this Agreement shall govern.
The place of arbitration shall be Stamford, Connecticut, and the law applicable
to the arbitration procedure shall be the Federal Arbitration Act (9 USC P 2).
To commence arbitration of any such dispute, the party desiring arbitration
shall notify the other party in writing in accordance with the Rules. In the
event that the parties fail to agree on the selection of an arbitrator within
fifteen (15) days after the delivery of such notice, the arbitrator shall be
selected by the American Arbitration Association upon the request of either
party.

32.2   The Parties agree that the award of the arbitrator shall (1) be the sole
and exclusive remedy between them regarding any claims, counterclaims, or issues
presented to the arbitrator; (2) be final and subject to no judicial review; and
(3) be made and shall promptly be payable in U.S. dollars free of any tax,
deduction, or offset. The Parties further agree that any costs, fees, or taxes
incident to enforcing the award shall, to the maximum extent permitted by law,
be charged against the Party resisting such enforcement. The Parties hereto
agree that judgment on the arbitration award may be entered and enforced in any
court having jurisdiction over the Parties or their assets.

33.3   Each Party shall, except as otherwise provided herein, be responsible for
its own expenses, including legal fees, incurred in the course of any
arbitration proceedings. The fees of the arbitrator shall be divided evenly
between the Parties.

33.4   CONSULTANT shall carry on and be paid for the services not in dispute and
maintain the schedule for services during any arbitration or litigation
proceedings, unless otherwise agreed by CONSULTANT or CLIENT in writing.

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IN WITNESS WHEREOF, the parties have executed this Agreement effective the 15
day of September, 1997.

CITIZENS UTILITIES COMPANY                       CONVERGENT GROUP CORPORATION

By: /s/ J. MICHAEL LOVE                          By: /s/ GLENN E. MONTGOMERY
   -------------------------------------             ---------------------------

Name: J. Michael Love                            Name:  Glenn E. Montgomery
     -----------------------------------

Title: VICE PRESIDENT PUBLIC SERVICES            Title:  Chairman & CEO
      ----------------------------------

Proprietary and Confidential                           Convergent Group/FGM1074F

                                      -15-
<PAGE>   16
                                                                   EXHIBIT 10.19
ATTACHMENT A - SCOPE OF WORK

Convergent Group (CONSULTANT) has prepared this scope of work for the
implementation of the DESIGN Geographic Information System (GIS) Project for the
Gas Business Unit (GBS) of the Energy Sector of Citizens Utilities Company
(CUC), hereafter referred to as CLIENT.

While it is envisioned that the deliverables referred to in this scope of work
will ultimately be rolled out to all Energy Sector service territories, this
scope of work discusses only those tasks that will be used to manage the
development and implementation of the GIS for the CLIENT service territory as
defined in the Data Conversion Plan issued in July 1997. The service territory
as defined in that document does not include gas properties in Colorado, Mojave,
Santa Cruz, or Hawaii. The addition of these or other service territories will
be done via the change order procedure defined in Attachment E - Change Order
Procedure.

The assumptions made in developing this scope of work are listed in Attachment D
- Project Assumptions.

CONSULTANT activities are addressed in the following scope of work consisting of
nine major tasks.

PROPOSED WORK TASKS

---------------------    -----------------------       ----------------------
1                        2                             3
Project Management       Employee Communications       Hardware Procurement

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

---------------------    -----------------------       ----------------------
4                        5                             6
Third-Party              Systems Engineering           Data Modeling
Software Procurement

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

---------------------    -----------------------       ----------------------
7                        8                             9
Data Conversion          Applications and              Training
                         Interfaces Development

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

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY,     CONVERGENT GROUP                             A-1
ENERGY SECTOR, GAS
BUSINESS UNIT
Proprietary and Confidential

<PAGE>   17
ATTACHMENT A - SCOPE OF WORK

TASK 1: PROJECT MANAGEMENT
--------------------------------------------------------------------------------

CONSULTANT will perform the roles of CLIENT's Representative, General Project
Manager, and Integration Consultant on this project.

CONSULTANT will finalize the detailed project implementation work plan and
schedule with the appropriate subcontractors and the CLIENT Project Manager.
CONSULTANT will take the lead in establishing individual start-up assignments,
participation requirements, and project control/review/approval procedures. In
coordination with the CLIENT Project Manager, CONSULTANT will maintain the
project implementation work plan and schedule on a monthly basis to reflect
accomplishments and changes.

CONSULTANT will provide ongoing project management and coordination, including
coordinating and managing vendors and subcontractors, supporting day-to-day
client activities, scheduling project meetings with the CLIENT Project Team or
vendors and subcontractors, providing status reports, and performing other
project management/support activities. CONSULTANT will share project plan and
schedule updates with the CLIENT Project Team on a regular basis to support
CLIENT's internal project management efforts.

CONSULTANT will provide one full-time, onsite person to assist in project
coordination, Third-Party and Custom Software installation, training, and
acceptance. An extra consultant to commence work in Harvey from January 1998 and
an extra consultant for onsite coordination in Flagstaff from April 1998 are
recommended. An allowance for these two resources is included in Attachment C -
Billing Terms for Estimated Work under "Onsite Consultants."

To facilitate communication and exchange of information between CLIENT and
CONSULTANT, CONSULTANT will specify and CLIENT will establish a data
communications link between Harvey, Louisiana, and Englewood, Colorado.

DELIVERABLE PRODUCTS FOR TASK 1

o        Monthly status reports on activities and deliverables

o        Monthly project schedule updates

o        Quarterly executive briefings

o        Ongoing project management

o        Ongoing vendor and subcontractor management

o        Requirements for Englewood to Harvey communications link

--------------------------------------------------------------------------------
A-2                             CONVERGENT GROUP     CITIZENS UTILITIES COMPANY,
                                                              ENERGY SECTOR, GAS
                                                                   BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   18
                                                   ATTACHMENT A - SCOPE OF WORK

TASK 2: EMPLOYEE COMMUNICATIONS
--------------------------------------------------------------------------------

CONSULTANT's experience with large systems integration projects has shown that
user community involvement early in the process is key to employee acceptance
and to the ultimate success of the project. CONSULTANT's communications
professionals will assist CLIENT in refining and managing the Employee
Communications Program. This program, which seeks to inform and educate future
GIS users and any personnel who may be impacted by the GIS implementation, will
help ensure acceptance of the technology by CLIENT staff.

CONSULTANT will advise the CLIENT Communications Team on program implementation.
The CLIENT Communications Team will perform all internal activities associated
with the program implementation. CONSULTANT will conduct monthly or quarterly
teleconference meetings with the CLIENT Communications Team to discuss ongoing
program strategy. CONSULTANT will provide action item reports from these
meetings and quarterly status reports of the Employee Communications Program.

DELIVERABLE PRODUCTS FOR TASK 2

o        Revised Employee Communications Plan

o        Employee Communications Program implementation management assistance
         and consulting

o        Project kickoff meeting

o        Monthly or quarterly meetings

TASK 3: HARDWARE PROCUREMENT
--------------------------------------------------------------------------------

CONSULTANT will define the requirements and specifications for all hardware
needed for each phase of development and rollout, negotiate and execute all
hardware purchase orders, and deliver hardware to a location nominated by the
CLIENT.

CLIENT will also be responsible for installing, configuring, and commissioning
hardware, Third-Party and Custom Software, and network communications.

CONSULTANT will work closely with CLIENT to comply with the existing CLIENT
hardware infrastructure and standards.

CLIENT will be responsible for reviewing and executing any license agreements
for Third-Party Software to be delivered by CONSULTANT with the hardware (for
example, operating system, system utilities, etc.).

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY,     CONVERGENT GROUP                             A-3
ENERGY SECTOR, GAS
BUSINESS UNIT
Proprietary and Confidential

<PAGE>   19
ATTACHMENT A - SCOPE OF WORK

Hardware maintenance of items purchased under this contract is included. It has
been established at 10 percent of the original purchase price.

Hardware pricing is based upon hardware and associated operating system software
as listed in Table A-1. The actual hardware rollout may vary.

TABLE A-1: HARDWARE SCHEDULE

<TABLE>
<CAPTION>
                          TOTAL      1997      1998      1999    2000
                         -------   -------   -------   -------   ------
<S>                      <C>       <C>       <C>       <C>       <C>
GIS Server                  4         2         2        --        --
Oracle Server               4         2         2        --        --
Cache Server               11        --         6         3         2
Plot Server                 8        --         6         1         1
Workstation                39         7        24         6         2
Workstation Upgrade        28         2        21         3         2
Laptop                     58        --        10        39         9
Laser Printer              25         1        17         5         2
Plotter                    11         1         7         2         1
Scanner                    10        --         7         2         1
</TABLE>

DELIVERABLE PRODUCTS FOR TASK 3

o        Hardware specifications for each phase of system deployment

o        Vendor contract negotiations and management

o        Operating system agreements

o        Hardware and operating system maintenance and associated agreements

--------------------------------------------------------------------------------
A-4                             CONVERGENT GROUP     CITIZENS UTILITIES COMPANY,
                                                              ENERGY SECTOR, GAS
                                                                   BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   20
                          ATTACHMENT A - SCOPE OF WORK

TASK 4: THIRD-PARTY SOFTWARE PROCUREMENT
--------------------------------------------------------------------------------

CONSULTANT will define the requirements and specifications for all third-party
software (i.e., GIS, operating system, relational database management system,
and document imaging software to support the viewing of main, service, and valve
cards) necessary for each phase of development and rollout, negotiate all
Third-Party Software vendor purchase orders, and deliver Third-Party Software to
a nominated site. Third-Party Software pricing is based upon Third-Party
Software and associated operating system software as listed in Table A-2. The
actual Third-Party Software rollout may vary from that listed in Table A-2.
CLIENT will install and accept Third-Party Software at the Harvey development
site. CLIENT will be responsible for deployment of Third-Party Software to end
users.

CONSULTANT will provide a credit for unused GDS licenses (Attachment B - Fixed
Price Payments). This will be the discounted price of one Smallworld developer
license and one Smallworld GIS license, and the first year of maintenance for
both licenses.

CONSULTANT will work closely with CLIENT to comply with the existing CLIENT
software infrastructure and standards.
CONSULTANT will optimize the use of existing Third-Party Software and vendor
purchase agreements and establish an effective parallel Third-Party Software
configuration at CONSULTANT headquarters for efficient system development and
troubleshooting.

CONSULTANT will rely on CLIENT resources for all activities involving changes to
the CLIENT Customer Information System (CIS) on the mainframe.

CLIENT will be responsible for reviewing and executing all license agreements
for the Third-Party Software to be delivered by CONSULTANT.

CLIENT will be responsible for installing all Third-Party Software at the CLIENT
sites.

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY,     CONVERGENT GROUP                             A-5
ENERGY SECTOR, GAS
BUSINESS UNIT
Proprietary and Confidential

<PAGE>   21
                          ATTACHMENT A - SCOPE OF WORK

TABLE A-2: SMALLWORLD SOFTWARE SCHEDULE

<TABLE>
<CAPTION>
                            TOTAL      1997      1998      1999    2000
                           -------   -------   -------   -------   ------
<S>                        <C>       <C>       <C>       <C>       <C>

Smallworld - Developer        2         1         1        --        --
Smallworld - Administrator    2         2        --        --        --
Smallworld - GIS User        65         7        29        22         7
Smallworld - Query/Report    55         2        26        20         7
Smallworld - View             0        --        --        --        --
Smallworld - Web              0        --        --        --        --
</TABLE>

DELIVERABLE PRODUCTS FOR TASK 4

o        Third-Party Software specifications for each phase of system deployment

o        Vendor contract negotiations and management

o        Third-Party Software maintenance and associated agreements

TASK 5: SYSTEMS ENGINEERING
--------------------------------------------------------------------------------

CONSULTANT will work with CLIENT on overall system engineering, addressing both
functional requirements and system architectural issues. Much of this work has
been performed in the pilot and previous change orders. This task reflects the
level of effort to complete and maintain these activities.

FUNCTIONAL REQUIREMENTS

System-level functional requirements will be developed for work managed and
delivered by CONSULTANT to facilitate design, implementation, testing, and
change management processes. CONSULTANT will advise CLIENT on related work
managed by CLIENT. These requirements will be of a high-level nature and will be
subsequently used to prioritize and estimate the applications and interfaces.

Further detailed requirements for each application or interface will be
developed as part of the development release process.

SYSTEM ARCHITECTURE

As part of the system architecture design, CONSULTANT will define the design and
architecture of the proposed hardware and Third-Party Software technologies.

Tasks will include the following:

o        Refine current business process/integrated system model

o        Resolve process model issues identified during the system integration
         implementation planning workshop

--------------------------------------------------------------------------------
A-6                             CONVERGENT GROUP     CITIZENS UTILITIES COMPANY,
                                                              ENERGY SECTOR, GAS
                                                                   BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   22
                          ATTACHMENT A - SCOPE OF WORK

o        Define data distribution requirements

o        Define security requirements

o        Refine system architecture

o        Develop the data communications plan, including:

         -        Local communications requirements

         -        Remote access requirements

         -        Outside access requirements

         -        Infrastructure plan

o        Finalize configuration design document

o        Define documentation requirements/timing

As part of developing a map of the system architecture illustrating the physical
connectivity between components, CONSULTANT will identify hardware/software
components, develop a computer system network diagram, and develop an
architecture diagram(s) illustrating functionality.

SYSTEM INTEGRATION MANAGEMENT

This task includes all activities associated with development systems
administration, software configuration management, quality assurance and release
procedures, in addition to maintaining an Englewood system and advising CLIENT
on the Harvey development system.

DELIVERABLE PRODUCTS FOR TASK 5

o        Systems architecture document

o        Functional requirements document

o        Initial development environment installation and configuration

o        Software configuration management, quality assurance, and release
         procedures

TASK 6: DATA MODELING
--------------------------------------------------------------------------------

This task will consist of all activities required to implement a production data
model to support the CLIENT DESIGN GIS applications developed as part of this
project. These activities will consist of updating the DESIGN GIS data model
created in the pilot project to incorporate necessary changes. These data model
changes include further refinement of the conceptual/logical model to reflect
new application requirements, implementation of the physical data model to
optimize performance, data distribution, and data maintenance requirements.

Many of the activities discussed above will be performed in an iterative fashion
to account for the phased implementation of the

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY,     CONVERGENT GROUP                             A-7
ENERGY SECTOR, GAS
BUSINESS UNIT
Proprietary and Confidential

<PAGE>   23
                          ATTACHMENT A - SCOPE OF WORK

system. Therefore, CONSULTANT will provide updates to the logical design, the
physical design, the database distribution architecture, and the management
procedures for the production database, as required, for each phase of
implementation.

DELIVERABLE PRODUCTS FOR TASK 6

o        Logical database model update for each phase of implementation

o        Physical database model update for each phase of implementation

o        Database schema update for each phase of implementation

o        Production database maintenance procedures and update for each phase of
         implementation

TASK 7: DATA CONVERSION
--------------------------------------------------------------------------------

CONSULTANT will construct the DESIGN GIS database by managing and coordinating
all data conversion activities. These activities will involve defining and
specifying data requirements, identifying qualified vendors and subcontractors,
negotiating and executing contracts, verifying the quality of data received from
conversion contractors, and delivering and installing data at the Harvey
development site.

The GIS database may consist of several components: satellite imagery, street
centerline and other planimetric data (for example, rivers, railroads, etc.),
premises (e.g., addresses), and facilities (for example, pipes, valves, etc.).
Each of these components may be provided by a separate vendor or subcontractor.
CONSULTANT will manage the specifications, development, and delivery of these
components. CONSULTANT will conduct tests on the database to ensure that the
data meets mutually agreed-upon acceptance criteria to be developed prior to the
initiation of actual data conversion.

In addition to actual data conversion, CONSULTANT will also develop procedures
and processes for use by CLIENT District Offices in preparation of facilities
conversion. These procedures and processes will specify those activities that
can be performed by CLIENT staff in the District Offices in advance of data
conversion to enhance the accuracy and completeness of the paper records.

The current database creation plan is based on the following content:

o  One meter resolution orthophotography or satellite imagery for high-growth
   areas identified by CLIENT on the service territory maps supplied to
   CONSULTANT in November 1996.

--------------------------------------------------------------------------------
A-8                             CONVERGENT GROUP     CITIZENS UTILITIES COMPANY,
                                                              ENERGY SECTOR, GAS
                                                                   BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   24
                                                    ATTACHMENT A - SCOPE OF WORK

o        Address listings from a commercial vendor, such as Database America,
         Donnely, or Dun & Bradstreet.

o        Customer address listings provided by CLIENT.

o        Reconciled addresses obtained by comparing CLIENT CIS addresses with
         commercial vendor addresses. The CLIENT Project Team will resolve any
         discrepancies, and CONSULTANT will make the appropriate corrections.

o        Street centerline and address range data from a commercial vendor, such
         as GDT or ETAK.

o        Identification and resolution of discrepancies between the street data
         and the other data sources processed to date. The CLIENT Project Team
         will resolve any discrepancies, and CONSULTANT will make the
         appropriate corrections.

o        Expanded street centerlines to represent nominal rights-of-way based on
         right-of-way width information provided by CLIENT.

o        Geocoded addresses placed along the street centerlines. Those addresses
         corresponding to CLIENT customers will be flagged.

o        Converted gas facilities based on the conversion source documents
         prepared by the CLIENT Project Team.

o        CLIENT customers (flagged addresses) linked to gas facilities using the
         rules specified in the Data Conversion Plan dated July 1997.

DELIVERABLE PRODUCTS FOR TASK 7

o        Scrub and control procedures update for each District

o        Data conversion acceptance testing procedures for each District

o        Conversion specifications update for each phase of implementation

o        Contracts negotiation and administration with data conversion
         subcontractors and data vendors

o        Data acceptance testing

o        Orthophotographs or satellite images for high-growth areas, as
         specified

o        Street network landbase for up to 2,715 square miles

o        Facilities conversion for up to 342,000 customers

o        Delivery and installation of tested GIS database

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY,     CONVERGENT GROUP                             A-9
ENERGY SECTOR,
GAS BUSINESS UNIT
Proprietary and Confidential

<PAGE>   25
ATTACHMENT A - SCOPE OF WORK

TASK 8: APPLICATIONS AND INTERFACES DEVELOPMENT
--------------------------------------------------------------------------------

This task will take CLIENT-requested applications and interfaces development to
a production state. Based on the feedback provided by users from their
experience with the functionality provided by the DESIGN GIS, and based on the
definition of new applications and interfaces, in the pilot, CLIENT and
CONSULTANT will work together to define production applications. CONSULTANT will
develop the releases associated with refining, enhancing, and preparing previous
pilot applications and new applications for production.

The work plans and schedules include effort to convert GDS-based pilot
applications to a Smallworld environment. CONSULTANT will provide a one-time
credit off its fixed fees (Attachment B - Fixed Price Payments), which comprises
the estimate of the work already performed on the pilot application. All future
costs for this application migration effort will be paid by the CLIENT.

CONSULTANT and CLIENT will partner in the development and maintenance of DESIGN
applications and interface design, testing, and deployment. CONSULTANT will work
with CLIENT technical personnel who have received core GIS, Oracle Relational
Database Management System (RDBMS), and other Third-Party Software training to
provide skills transfer that will allow CLIENT personnel to take ownership, to
develop mutually agreed upon applications, and to provide maintenance of DESIGN
applications and interfaces. CLIENT will dedicate appropriate technical
resources for specified training, applications and interface development, and
skills transfer activities.

CONSULTANT will provide applications and interfaces maintenance support during
the life of this contract. The maintenance effort for each application will be
defined in the development release process.

To support the development of applications and interfaces, CONSULTANT will
establish a development facility in its offices in Englewood, Colorado. This
facility will use CLIENT hardware and Third-Party Software to ensure that the
applications operate with the hardware and Third-Party Software environment
deployed for CLIENT. All hardware and Third-Party Software purchased for this
project and used in the CONSULTANT development facility will be delivered to
CLIENT as the project concludes. At CLIENT's option, a portion of the hardware
and Third-Party Software can

--------------------------------------------------------------------------------
A-10                            CONVERGENT GROUP     CITIZENS UTILITIES COMPANY,
                                                                  ENERGY SECTOR,
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   26
                                                    ATTACHMENT A - SCOPE OF WORK

remain in CONSULTANT's offices to be used in supporting CLIENT beyond the
project implementation period.

Some of the interfaces to be developed by CONSULTANT can only be simulated in
Englewood, Colorado. Therefore, any development that requires access to CLIENT
systems may be performed at CLIENT's office by CONSULTANT or by CLIENT staff, if
appropriate.

In addition, CLIENT will establish a mirror testing and staging facility at its
own offices to perform integration testing, acceptance testing, and maintenance
support. This will ensure that testing does not disrupt the end users of the
system.

DEVELOPMENT RELEASES

The process by which CONSULTANT and CLIENT will prioritize and define the
functionality to be delivered in each phase will be through the use of
development releases. Development releases are small-scale scopes of work for
applications or modules within applications. Development releases also allow
greater development flexibility in prioritizing application development by
incorporating user feedback and modifications during the development process
prior to spending a substantial amount of development dollars on low priority
functionality. Based on CONSULTANT experience, the development pool of dollars
estimated to be adequate to fund all required development activities will be
established and drawn upon by CLIENT for applications development and
integration. This allows CLIENT to evaluate all incremental development from a
cost-benefit standpoint.

DEVELOPMENT PROCESS

All development, whether it is a configuration of the base Third-Party Software,
customization, application development, or integration, will be performed and
managed by CONSULTANT and will follow the process described below:

1.       CONSULTANT will work with CLIENT to document detailed functional
         requirements. CONSULTANT will draft a development release specifying
         the scope, design, and fixed fee for development to be delivered. The
         development release will include Custom Software development and
         testing, acceptance criteria, training requirements, and maintenance
         allowance.

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY,     CONVERGENT GROUP                            A-11
ENERGY SECTOR,
GAS BUSINESS UNIT
Proprietary and Confidential

<PAGE>   27
ATTACHMENT A - SCOPE OF WORK

2.       CLIENT will authorize development to proceed.

3.       CONSULTANT will continue development.

4.       CLIENT will review preliminary design and/or prototype development with
         CONSULTANT.

5.       Application code development will continue based on CLIENT's review.

6.       CONSULTANT will perform code testing (unit testing) and system-level
         testing prior to delivery.

7.       Application will be delivered to CLIENT for testing and acceptance.

Because of the importance of this task, CONSULTANT will rely heavily on the
CLIENT Project Team to ensure that the applications and interfaces under
development address CLIENT business issues. To do so, CONSULTANT will involve
the CLIENT Project Team in all phases of the development process.

CONSULTANT will use the development facility at Englewood, Colorado, to install
all vendor-and CONSULTANT-developed Custom Software for applications, to
develop DESIGN applications, and to perform unit and integration testing.
CONSULTANT staff will test all application modules to ensure compliance with the
development release specifications and test plans. This testing will be
completed prior to installation at CLIENT facilities where final integration and
user acceptance testing will be conducted by CLIENT.

CONSULTANT will provide CLIENT with training for applications and interfaces
developed as part of this task. Specifically, CONSULTANT will provide selected
members of the CLIENT Project Team with the necessary training to operate the
applications and interfaces for testing and acceptance and for developing
training materials that will be used by CLIENT to deliver applications- and
interfaces-specific training to end users. CLIENT will be responsible for
training end users, as well as for preparing and producing end-user training
materials.

As each development release is accepted maintenance will commence. All
application and interface maintenance will then continue through the completion
of this contract. During the contract period of performance application and
interface maintenance periods for all accepted applications and interfaces will
be adjusted semi-annually during the life of this contract so as to be
completely synchronized upon contract completion The level of maintenance and
support for applications and interfaces is

--------------------------------------------------------------------------------
A-12                            CONVERGENT GROUP     CITIZENS UTILITIES COMPANY,
                                                                  ENERGY SECTOR,
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   28
                                                    ATTACHMENT A - SCOPE OF WORK

based on current projections for CLIENT Information Systems staff anticipated to
be assigned to this project and has been estimated at 15 percent annually of the
original development cost.

Refer to Attachment C - Billing Terms for Estimated Work, Table C-1, for an
estimate of applications and interfaces rollout and costs.

DELIVERABLE PRODUCTS FOR TASK 8

o        Development releases for applications and interfaces

o        Acceptance criteria and test scripts

o        Core product configurations

o        Applications and interfaces development

o        Assistance with development of training materials

o        Maintenance of developed applications and interfaces during contract
         period

TASK 9: TRAINING
--------------------------------------------------------------------------------

CONSULTANT will assist CLIENT in the development of CLIENT internal expertise
needed to support the end users of the DESIGN GIS. CONSULTANT will develop a
"train-the-trainer" program that will cover various aspects of operating,
customizing, and maintaining the system. To the extent possible, this training
will be provided by CONSULTANT staff to ensure that all instruction is given
within the context of the CLIENT business processes, as well as to ensure
continuity with other project activities. It will also include off-the-shelf
training for third-party software products.

For each phase of implementation, CONSULTANT will prepare a training plan and
schedule (Table A-3), identifying the specific courses, the trainees, the course
dates, and their locations.

CONSULTANT will assist the CLIENT Project Team in the preparation of end-user
training materials by incorporating as many of CLIENT's day-to-day business
processes within the "scripts" to be developed for testing applications. It is
assumed that actual development of training materials for use by CLIENT end
users will be the responsibility of the CLIENT staff fulfilling the duties of
the trainer position identified in the DESIGN GIS Pilot Evaluation Report dated
November 1996.

This task does not include applications-specific instruction. That type of
training will be provided as part of the delivery process outlined in Task 8.

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY,     CONVERGENT GROUP                            A-13
ENERGY SECTOR,
GAS BUSINESS UNIT
Proprietary and Confidential

<PAGE>   29

                          ATTACHMENT A - SCOPE OF WORK

                        DELIVERABLE PRODUCTS FOR TASK 9

                          Training plans and schedules

               TABLE A-3: THIRD-PARTY SOFTWARE TRAINING SCHEDULE

<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------------------
                                                                               IMPLEMENTATION PHASE
COURSE                                            DAYS      LOCATION       1997       1998       1999
----------------------------------------------------------------------------------------------------------
<S>                                              <C>       <C>            <C>        <C>       <C>
GIS USER TRAINING
   GIS Overview                                     1        On-Site          0          2          3
   Introductory GIS Use                             2        On-Site         12          3          6
   Advanced GIS Use                                 5        Off-Site         1          1          3
   Introductory DBMS Use                            5        Off-Site         1          1          3
   Advanced DBMS Use                                5        Off-Site         4          0          1
PROGRAMMING OF THE SYSTEM
   Introductory GIS Programming                     5        Off-Site         2          0          1
   Advanced GIS Programming                         5        Off-Site         2          1          2
GIS DATABASE DESIGN
   DBMS Forms, Reports, and                         5        Off-Site         2          1          3
   Advanced DBMS Programming                        5        Off-Site         4          1          1
MANAGEMENT OF THE SYSTEM
   Operating System                                 5        Off-Site         3          3          6
   System Operation                                 5        Off-Site         2          2          3
   System Management                                5        Off-Site         3          2          3
   Database Management                              5        Off-Site         2          0          0
----------------------------------------------------------------------------------------------------------
</TABLE>

--------------------------------------------------------------------------------
A-14                            CONVERGENT GROUP     CITIZENS UTILITIES COMPANY,
                                                                  ENERGY SECTOR,
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   30

ATTACHMENT B - FIXED PRICE PAYMENTS

The total fixed fee for this project, as defined in Attachment A -
Scope of Work, is $7,900,000, which is comprised of $2,900,000 for services and
$5,000,000 for land and facility data conversion.

SERVICES
CONSULTANT will provide the services defined in Attachment A -
Scope of Work, that consist of the following:

o   Task 1 - Project Management
o   Task 2 - Employee Communications
o   Task 5 - Systems Engineering
o   Task 6 - Data Modeling

The total fixed fee for services is $2,900,000. The following sums will be
subtracted from the total fixed fee for services:

<TABLE>

<S>                                                       <C>
1. Credit for GDS licenses                                $ 38,700
2. Unused pilot funds allocated to hardware               $ 43,640
   and training
3. Pilot applications costs                               $470,921
TOTAL                                                     $553,261
</TABLE>

The remaining $2,346,739 for this new scope of work will be invoiced monthly to
CLIENT according to Table B-1, Fixed Services Fee Schedule of Payments.

TABLE B-1:        FIXED SERVICES FEE SCHEDULE OF PAYMENTS

<TABLE>
<CAPTION>

                          1997           1998           1999          2000
                          ====           ====           ====          ====
<S>                     <C>             <C>           <C>            <C>
January                                 $75,000       $75,000        $50,000
February                                $75,000       $75,000        $25,000
March                                   $75,000       $50,000        $25,000
April                                   $75,000       $50,000        $25,000
May                                     $75,000       $50,000        $25,000
June                                    $75,000       $50,000        $21,739
July                                    $75,000       $50,000
August                  $125,000        $75,000       $50,000
September               $125,000        $75,000       $50,000
October                 $125,000        $75,000       $50,000
November                $125,000        $75,000       $50,000
December                $125,000        $75,000       $50,000
                        ========        =======       =======        =======
</TABLE>

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,                CONVERGENT GROUP   B-1
GAS BUSINESS UNIT
Proprietary and Confidential
<PAGE>   31
ATTACHMENT B - FIXED PRICE PAYMENTS

DATA CONVERSION
Data conversion consists of the following task as described in Attachment A -
Scope of Work:

o   Task 7 - Data Conversion

The total fixed fee for data conversion is $5,000,000 and will be billed 80
percent when the data is delivered to CONSULTANT and 20 percent upon acceptance
by CLIENT in accordance with mutually agreed upon QA/QC acceptance criteria.

Payments to subcontractors are based upon timely acceptance of data. Since
CONSULTANT will be providing QA/QC services, CLIENT must accept or reject data
within 15 working days. Otherwise, a delivery will be deemed to be accepted.

Table B-2 depicts the anticipated invoice time frame for CLIENT budget planning
purposes. A start-up fee of $500,000 for land and facility record team
mobilization is required to mobilize CONSULTANT and conversion vendor resources
prior to production data processing. Actual billing after mobilization will be
based on the percent of data delivered, i.e., measured by number of transformers
and/or customers or portion of landbase area.

TABLE B-2:        ANTICIPATED DATA CONVERSION CHARGES

<TABLE>
<CAPTION>

                          1997           1998          1999           2000
                          ====           ====          ====           ====
<S>                       <C>          <C>           <C>            <C>
January                                $100,000      $150,000       $150,000
February                               $100,000      $150,000       $150,000
March                                  $100,000      $150,000       $150,000
April                                  $150,000      $150,000       $100,000
May                                    $150,000      $150,000       $100,000
June                                   $150,000      $150,000       $100,000
July                                   $200,000      $150,000
August                                 $200,000      $150,000
September              $500,000(A)     $200,000      $150,000
October                                $200,000      $150,000
November                               $200,000      $150,000
December                               $200,000      $150,000
                       ===========     ========      ========       =========
</TABLE>

A: Subcontractor Mobilization Fee

--------------------------------------------------------------------------------
B-2            CONVERGENT GROUP       CITIZENS UTILITIES COMPANY, ENERGY SECTOR,
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential
<PAGE>   32

ATTACHMENT C - BILLING TERMS FOR ESTIMATED WORK

The total of the estimated payments for this project defined in Attachment A -
Scope of Work, is $10,460,000, as described below. All payments included in this
Attachment are in addition to the fees outlined in Attachment B - Fixed Price
Payments.

Any of these estimated dollars remaining at the end of the project will be left
unspent and kept by CLIENT. If the cumulative value of the estimated dollars
exceeds the estimate, a change order will be required for the additional amount.

EXPENSES

CONSULTANT expenses associated with the support of the activities within this
project will be invoiced monthly at cost plus a 3.5 percent administrative fee
as incurred. These expenses include, but are not limited to, airfare, lodging,
car rental, food, parking, copies, postage, faxes, and long-distance telephone
charges. Expenses will be invoiced monthly. Estimated total project expenses are
$360,000.

HARDWARE

CONSULTANT will specify hardware and related operating system software for each
phase of the project. CLIENT will approve consultant's purchases prior to order
placement.

CLIENT will purchase hardware and peripherals for this project from CONSULTANT.
The hardware equipment is estimated to cost $1,800,000.

THIRD-PARTY SOFTWARE

CLIENT will purchase Third-Party GIS and related Third-Party Software, training,
and maintenance from consultant.

CONSULTANT will require CLIENT to approve and execute Third-Party License
Agreements and a Consultant Maintenance Agreement prior to CONSULTANT's
procurement.

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,          CONVERGENT GROUP        C-1
GAS BUSINESS UNIT
Proprietary and Confidential

<PAGE>   33
ATTACHMENT C - BILLING TERMS FOR ESTIMATED WORK

SMALLWORLD LICENSES

Smallworld software pricing is based upon Smallworld software listed in Table
A-2, charged at a 25 percent discount off list price, for a total price of
$1,100,000. CLIENT will purchase Smallworld licenses as a single group in
September 1997 (payable October 1997).

During the term of this contract, if CLIENT requires a different mix of
licenses, any license can be exchanged for the then current relative incremental
cost less the discount of 25 percent.

OTHER THIRD-PARTY SOFTWARE

There is an allowance of $750,000 for all other Third-Party Software.

OTHER THIRD-PARTY SOFTWARE MAINTENANCE

Third-Party Software maintenance of items purchased under this contract is
included in the $750,000 estimate. It has been estimated at 15 percent of the
original purchase price per year.

During the contract period of performance maintenance for the Development
Release will be adjusted and payable semi-annually during the life of the
contract so as to be synchronized at the end of the contract term.

SMALLWORLD MAINTENANCE

Smallworld product maintenance is priced at an annual rate of 15 percent of
current list price, payable in yearly advance upon delivery in accordance with
licensing agreements. Three years' annual maintenance is estimated to be
$450,000. Actual Smallworld maintenance fees will become payable at the time of
key file and/or software delivery.

APPLICATION AND INTERFACES DEVELOPMENT

Applications and interfaces development services provided by CONSULTANT will be
invoiced according to the following payment schedule for each development
release, as documented in the following task in Attachment A - Scope of Work:

o   Task 8 - Applications and Interfaces Development

--------------------------------------------------------------------------------
C-2      CONVERGENT GROUP              CITIZENS UTILITIES COMPANY, ENERGY SECTOR
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   34
         ATTACHMENT C - BILLING TERMS FOR ESTIMATED WORK

The payment schedule for each development release will be as follows:

<TABLE>
<CAPTION>

   PERCENT OF TOTAL DEVELOPMENT          POINT DURING DEVELOPMENT THAT
      RELEASE VALUE INVOICED                AMOUNT WILL BE INVOICED
--------------------------------------------------------------------------------
<S>                                  <C>
                25%                  Written authorization by CLIENT provided

                25%                  Prototype and/or design review workshop

                25%                  Development delivered for CLIENT testing

                25%                  Written development acceptance by CLIENT
--------------------------------------------------------------------------------
</TABLE>

As development releases are authorized and fixed price fees are established for
each individual release, these amounts will be deducted from the remaining
application and systems integration development pool of dollars. The amount of
the total pool of dollars is estimated at $4,000,000, as detailed in Table C-1.

Taken individually, some of the development releases may exceed their estimated
cost, while other development releases may be combined and developed at a lower
cost. The total dollar allocations are projected to be adequate to cover the
applications and interfaces as currently envisioned by CONSULTANT and CLIENT.
CONSULTANT will provide, as part of its invoices, an update of the pool of
dollars allocated to development and the remaining unallocated dollars.

Custom applications and interfaces maintenance fees will be 15 percent of the
"accepted" cumulative development release fees. These custom applications and
interface maintenance fees are in addition to the Third-Party Software
Maintenance fees and will be adjusted and payable semi-annually during the life
of the contract so as to be synchronized at the end of the contract term.

CARD IMAGING CONVERSION

A Card Imaging Conversion Plan will be developed and will include a pilot
conversion activity. The plan will specify how this activity is to be invoiced.
CLIENT will agree and accept the plan before work will proceed. This work
associated with converting the mains, valve, and service cards is estimated to
be $1,000,000.

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,          CONVERGENT GROUP        C-3
GAS BUSINESS UNIT
Proprietary and Confidential

<PAGE>   35

ATTACHMENT C - BILLING TERMS FOR ESTIMATED WORK

TRAINING

Training in accordance with the plans outlined in Task 9 will be procured to
ensure effective technology transfer to CLIENT and invoiced as incurred.
Training is estimated at $100,000.

ONSITE CONSULTANTS

The provision of two onsite consultants to expedite rollout, training, and
support at Harvey and Flagstaff is estimated at $900,000. These consultants will
be provided on a mutually agreed upon schedule.

TABLE C-1:        APPLICATIONS/INTERFACES DEVELOPMENT COST ESTIMATES

<TABLE>
<CAPTION>

APPLICATION                                                                      1997      1998       1999      TOTAL
-----------                                                                      ----      ----       ----      -----
<S>                                                                             <C>       <C>        <C>        <C>
ACCOUNTING INTERFACE
     Plant Accounting (Installs, Removals) Report Generation                        --    106,958         --    106,958
     Tax Accounting Report Generation                                               --     54,805         --     54,805
ANALYSIS                                                                            --         --         --         --
     Engineering Alternative Analysis                                               --     26,920         --     26,920
     Integration with Network Analysis Package                                      --     40,186         --     40,186
     Main Repair/Replace Analysis                                                   --     69,090         --     69,090
     Pipeline Monitoring Data Collection/Analysis/Mapping                           --         --    110,474    110,474
     System Expansion Engineering Analysis (Population Study)                       --         --     16,564     16,564
     System Improvement Engineering Analysis (Load Study)                           --         --     16,564     16,564
CATHODIC APPLICATION                                                                --         --         --         --
     Cathodic Protection Mapping                                                19,565     17,247         --     36,812
CONVERSION TOOLS                                                                    --         --         --         --
     External Facilities Data Translation                                           --    157,693         --    157,693
FIELD APPLICATIONS                                                                  --         --         --         --
     Control Valve Data Collection/Management                                   93,034         --         --     93,034
     Crossings Data Collection/Management                                       11,463     17,247         --     28,710
     Field Map Export and Annotation                                                --         --     30,668     30,668
     Leak Complaint/Report/Repair/Recheck                                       28,710     34,545         --     63,255
     Leak Survey Data Collection/Management                                      6,015     24,498         --     30,513
     Leak Survey Data Mapping                                                       --     47,760         --     47,760
     Odorization Data Collection/Management                                         --         --     51,791     51,791
     Pipeline Status/Condition                                                      --         --     30,668     30,668
     Regulator Station Data Collection/Management                                   --         --     37,700     37,700
     Regulator Station Inspection Report Generation                                 --         --     37,700     37,700
     Site Sketching                                                                 --         --    110,474    110,474
     Test Point/Crossing CP Data Collection                                         --         --     44,038     44,038
GIS CORE                                                                            --         --         --         --
     CIS Interface                                                              77,604    108,387         --    185,991
     Gas Facilities Data Query                                                  63,963     20,686         --     84,649
     Gas Facilities Mapping and Data Maintenance                                23,725         --         --     23,725
     Generate Screen Print                                                       8,797         --         --      8,797
     Landbase Mapping and Data Maintenance                                      36,026     92,764         --    128,790
     Locate Area of Interest                                                    19,694         --         --     19,694
MAINFRAME SYSTEMS                                                                   --         --         --         --
     Reengineer Mainframe Systems                                                   --    151,858    139,094    290,952
</TABLE>

--------------------------------------------------------------------------------
C-4      CONVERGENT GROUP              CITIZENS UTILITIES COMPANY, ENERGY SECTOR
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   36
                          ATTACHMENT C - BILLING TERMS FOR ESTIMATED WORK

TABLE C-1:      APPLICATIONS/INTERFACE DEVELOPMENT COST ESTIMATES (CONTINUED)

<TABLE>
<CAPTION>

APPLICATION                                            1997        1998       1999        TOTAL
                                                       ----        ----       ----        -----
<S>                                                  <C>         <C>         <C>         <C>
OFFICE TOOLS                                              --          --          --          --
    External Landbase Data Translation                    --     108,258          --     108,258
    Map Export                                            --       9,493          --       9,493
    Marketing Non-Customer Data Access                    --      30,938          --      30,938
    On-Line Map Review                                    --          --     108,258     108,258
    Right-of-Way Mapping                                  --      71,717          --      71,717
    Standard Map Production                          106,481     106,481          --     212,962
OUTAGE                                                    --          --          --          --
    Customer Notification Letter Generation           17,582       8,797          --      26,379
    Gas Loss Calculation/Reporting                        --       8,797          --       8,797
    Outage Analysis                                   48,520       8,797          --      57,317
    Relight List Generation                           21,278       8,797          --      30,075
    Revenue Loss Calculation/Reporting                    --       8,797          --       8,797
    Service/Main Break Recording and Reporting            --          --      34,545      34,545
QUALITY ASSURANCE                                         --          --          --          --
    Quality Assurance/Quality Control                     --     135,127      46,382     181,508
SAFETY AND COMPLIANCE                                     --          --          --          --
    DOT Reporting                                         --          --      95,765      95,765
WORK ORDER                                                --          --          --          --
    As-Built Data Gathering                           12,301      27,796      11,463      51,560
    As-Built Information Posting                      11,940      19,694      11,463      43,097
    Bill of Material Generation                       24,047       8,424      11,463      43,935
    Construction Print Generation                     48,520       8,424      10,214      67,158
    Facilities Availability Analysis                      --      30,938          --      30,938
    Historical As-Built Drawing Review                    --      61,877          --      61,877
    Job Estimating                                        --      27,796      11,463      39,259
    Job Status Query and Display                       7,393     108,258          --     115,652
    Work Closing                                          --      27,796          --      27,796
    Work Design                                       75,182      27,796      10,214     113,192
    Job Review and Approval                               --          --     110,474     110,474
    Job Status Query and Display                          --      17,247          --      17,247
    WMS Interface                                         --          --     103,081     103,081
    Work Closing                                          --          --      11,463      11,463
    Work Initiation                                       --      34,545          --      34,545
    WMS Interface                                         --          --     158,942     158,942
    TOTAL FOR EACH YEAR                              761,841   1,877,232   1,360,927
    GRAND TOTAL                                                                        4,000,000
</TABLE>

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,          CONVERGENT GROUP        C-5
GAS BUSINESS UNIT
Proprietary and Confidential
<PAGE>   37
ATTACHMENT D - PROJECT ASSUMPTIONS

CONSULTANT is committed to delivering the CLIENT DESIGN GIS Project, as
described in Attachment A - Scope of Work. The following assumptions form the
basis of Attachments A - Scope of Work, B - Fixed Price Payments, and C -
Billing Terms for Estimated Work.

1.  CONSULTANT and CLIENT will work together to develop and maintain a detailed
    scope of work and schedule that will be used to coordinate the resources of
    both parties. The scope of work will be based upon the strategic
    implementation plan that is part of the DESIGN GIS Pilot Evaluation Report
    dated November 1996.

2.  Contract U39, Change Order #2 will be deemed to be complete. Contract U39,
    Change Order #4 will continue independently and is estimated to be completed
    in December 1997. All other work associated with Contract U39 is closed and
    accepted by CLIENT.

3.  Price includes a maximum of two iterations for the expeditious completion of
    deliverables. The CLIENT and CONSULTANT Project Managers shall mutually
    agree on the time required to review each deliverable and the time for
    deliverable acceptance in accordance with Attachment H - Deliverable
    Acceptance Procedures. The review and acceptance time periods will vary
    according to the specific task and deliverable(s). Iterations beyond the
    maximum will require additional work effort, which will be handled under
    Attachment E - Change Order Procedure.

4.  CLIENT will provide the resources (as defined in Table E-10 in the DESIGN
    GIS Pilot Evaluation Report dated November 1996) required to perform all
    CLIENT source data preparation and conversion scrub activities. Such
    resources will have appropriate skills and authority to complete the work
    and resolve conflicts among source documents. Work assigned to CLIENT, as
    shown in the detailed work plan developed for each phase of work, must be
    completed on schedule and to specification. If such tasks are not completed
    according to the schedule, the parties will mutually agree to a schedule
    and/or scope adjustment.

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,
GAS BUSINESS UNIT                                        CONVERGENT GROUP    D-1
Proprietary and Confidential

<PAGE>   38
ATTACHMENT D - PROJECT ASSUMPTIONS

5.  CLIENT will assign sufficient personnel resources as required in the
    detailed work plan developed for each phase of work. Such resources will
    have appropriate skills and authority to complete the work. If such tasks
    are not completed according to the schedule, the parties will mutually agree
    to a schedule and/or scope adjustment.

6.  The total project is estimated to take place over an approximate 36-month
    period beginning on the contract date. In the event that CLIENT extends the
    schedule due to business strategy changes, increases to scope, etc.,
    applicable fixed price task items, such as project management, will be
    addressed via change orders.

7.  CLIENT will provide programming resources to perform necessary modifications
    and maintenance to mainframe legacy systems that are to be interfaced with
    the DESIGN GIS.

8.  CONSULTANT assumes that a majority of the project work and project meetings
    will be performed in Harvey, Louisiana. The design and build efforts
    generally will be conducted at CONSULTANT offices in Englewood, Colorado.
    Staging and detailed functional testing will be performed at CONSULTANT
    offices in Englewood, Colorado. User testing assistance, rollout assistance,
    and training will be performed in Harvey, Louisiana, or at mutually agreed
    upon sites.

9.  CLIENT will establish a telecommunications link between the Harvey,
    Louisiana CLIENT office and the Englewood, Colorado CONSULTANT office to
    maximize development and project communications efficiencies.

10. CLIENT will provide office space and facilities to CONSULTANT personnel
    onsite at CLIENT offices to perform various aspects of the implementation.

11. Pricing is based upon work commencing on or about August 1, 1997, with
    estimated project completion in 3 years. The quoted prices are valid for 60
    days.

12. An additional price of $10 per customer will be charged in the event that
    CLIENT adds customers, within its current CLIENT service territory, as
    defined in Attachment A - Scope of Work, to the conversion project in excess
    of those that are already part of this project. Prices to add other CLIENT
    service areas (i.e., Colorado, Mojave, Santa Cruz, or Hawaii), or new areas
    acquired through annexation or merger, will be based upon separate
    CONSULTANT proposals.

--------------------------------------------------------------------------------
D-2      CONVERGENT GROUP             CITIZENS UTILITIES COMPANY, ENERGY SECTOR,
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   39
                                              ATTACHMENT D - PROJECT ASSUMPTIONS

13. The contract price does not include CLIENT internal team labor and expenses.

14. Task 2, Employee Communications, in Attachment A - Scope of Work, does not
    include program tools that are above and beyond the standard presentation
    materials. Additional tools and approximate budgets for each may include
    training ($15,000 - $25,000), project video ($40,000 - $50,000), and
    brochures and other collateral materials ($15,000 - $25,000). Acquisition of
    these additional tools will be evaluated during the life of the
    implementation. Implementation of any additional tools will be done via the
    Change Order authorization process described in Attachment E - Change Order
    Procedure.

15. Key CONSULTANT project resources, listed below, will not be replaced by
    CONSULTANT during the life of the project without the mutual agreement of
    both parties.

    o  Mr. Dean Zastava, CONSULTANT Project Director
    o  Mr. Greg Foster, CONSULTANT Project Manager

16. Key CLIENT project resources, listed below, will not be replaced during the
    life of the project without mutual agreement of both parties.

    o  Mr. Karl Weber, CLIENT Project Manager

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,               CONVERGENT GROUP    D-3
GAS BUSINESS UNIT
Proprietary and Confidential
<PAGE>   40

ATTACHMENT E - CHANGE ORDER PROCEDURE

FIXED PRICE ADDITIONAL SCOPES OF WORK

1.0      DRAFT ADDITIONAL SCOPES OF WORK. From time to time, during the term of
         this Agreement, CLIENT may desire to make changes, modifications, or
         enhancements ("Changes") to the provisions of this Agreement in
         accordance with this Attachment. CLIENT will notify CONSULTANT of the
         desired Changes in writing.

         Within 15 business days, CONSULTANT will deliver to CLIENT a proposed
         Change Order Response that contains the following:

         (i)   describes the Services to be provided by CONSULTANT and any
               Services to be performed or Items to be provided by CLIENT
               (including any Systems of third parties that are required to
               operate Systems or Software developed or provided by the
               CONSULTANT in connection with the Project).

                  a.   specifies the Work location(s) where the Project will be
                       performed.

                  b.   sets forth the credentials and skills required by
                       employees of the CONSULTANT who will perform the Services
                       associated with the Project.

                  c.   sets forth the period of time during which the Services
                       under the Project will be provided.

                  d.   describes the Systems and other Deliverables to be
                       provided.

                  e.   specifies a Schedule showing the time frame for all
                       stages of the Project and, if required, how the Scope of
                       Work or any other Additional Scopes of Work are
                       integrated into the Schedule.

2.0      PRICE PROPOSAL. The CONSULTANT and CLIENT shall cooperate to reach
         agreement in the 15 business days following the completion of the draft
         Additional Scope of Work on the price to be paid to the CONSULTANT for
         the performance of the Services described in the draft Additional Scope
         of Work. The CONSULTANT shall be paid a Firm Fixed

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,             CONVERGENT GROUP     E-1
GAS BUSINESS UNIT
Proprietary and Confidential

<PAGE>   41
ATTACHMENT E - CHANGE ORDER PROCEDURE

         Price for performance of the Services consistent with the Payment
         Schedule for the Services provided under the original Scope of Work,
         except as otherwise expressly provided in the draft Price Proposal.

3.0      VALIDITY PERIOD. Each draft Additional Scope of Work and draft Price
         Proposal shall be valid for a period of 30 days, or such longer period,
         as may be mutually agreed to by the parties.

4.0      CHANGE ORDER RESPONSE. Within 15 days after the CONSULTANT delivers the
         Change Order Response to the CLIENT, the CLIENT designated
         representative must provide written approval to the Change Order
         Response to authorize the implementation of the Change Order.

5.0      CONTINUED PERFORMANCE. The CONSULTANT will diligently proceed with the
         performance of the Services already under contract, as directed by
         CLIENT, notwithstanding the submittal of a Change Order Proposal in
         accordance with Contract Section 11(a).

TIME AND MATERIAL SCOPES OF WORK

1.0      DRAFT ADDITIONAL SCOPES OF WORK. From time to time, during the term of
         this Agreement, CLIENT may desire to add effort ("Changes") to the
         provisions of this Agreement in accordance with the Time and Material
         portions of this Agreement. CLIENT will notify CONSULTANT of the
         desired Changes in writing.

2.0      PURCHASE ORDER OR CONTRACT. CLIENT will prepare a separate Purchase
         Order or Contract that contains the following:

         (i)  describes the Services to be provided by CONSULTANT and any
              Services to be performed or Items to be provided by CLIENT
              (including any Systems of third parties that are required to
              operate Systems or Software developed or provided by the
              CONSULTANT in connection with the Project).

                  a.   specifies the Work location(s) where the Project will be
                       performed.

                  b.   sets forth the credentials and skills required by
                       employees of the CONSULTANT who will perform the Services
                       associated with the Project.

                  c.   sets forth when the Services will commence.

--------------------------------------------------------------------------------
E-2      CONVERGENT GROUP             CITIZENS UTILITIES COMPANY, ENERGY SECTOR,
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   42
                                           ATTACHMENT E - CHANGE ORDER PROCEDURE

3.0      REFERENCES: The Purchase Order or Contract, which delineates the
         additional Time and Material work to be performed for this Project,
         will state on its face that the Labor Rates, Terms, and Conditions
         contained in this Agreement shall take precedence over any terms and
         conditions or Labor Rates stated on the Purchase Order or Contract.

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,             CONVERGENT GROUP     E-3
GAS BUSINESS UNIT
Proprietary and Confidential

<PAGE>   43
ATTACHMENT E - CHANGE ORDER PROCEDURE

                            SAMPLE CHANGE ORDER FORM

                               CHANGE ORDER NUMBER
                                 CONTRACT NUMBER
                                DATE OF CONTRACT
                               PARTIES TO CONTRACT

Convergent Group (hereinafter referred to as CONSULTANT), and Citizens Utilities
Company/LGS DESIGN GIS Project (hereinafter referred to as CLIENT) mutually
agree to amend _______________ to (choose appropriate type of contract) 1) add
the Firm Fixed Price amount of $_____________ 2) add Time and Material Tasks in
accordance with the Scope of Work in the attached Professional Services
Proposal.

REASON FOR THIS CHANGE ORDER:

1) FOR FIXED PRICE CHANGES

Estimated Start Date:

Estimated Completion Date:

Estimated Impact to Project Schedule:

The following line items will be added to the existing contract: Describe Items

<TABLE>
<CAPTION>

ITEM NO.                      DESCRIPTION                   PRICE
--------                      -----------                   -----
<S>                           <C>                           <C>

TOTAL                                                       $
                                                             ----
</TABLE>

Based on the phased completion of the professional consulting effort detailed in
this Professional Services Proposal that includes the Scope of Work, all labor,
services, and expenses shall be invoiced monthly on a percent task completion
basis against the Firm Fixed Price amount of $______________ for the
_____________.

--------------------------------------------------------------------------------
E-4      CONVERGENT GROUP             CITIZENS UTILITIES COMPANY, ENERGY SECTOR,
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential

<PAGE>   44
                                           ATTACHMENT E - CHANGE ORDER PROCEDURE

2) FOR TIME AND MATERIAL CHANGES

The following line items will be added to the existing contract: Describe Items

<TABLE>
<CAPTION>

TASK DESCRIPTION                                       CEILING PRICE OR HOURS
<S>                                                    <C>
Either state or reference Labor Rates to be            Explain any reporting requirements relative
used, and approximate hours to be expended by          to hours expended, frequency of billing, or
each job classification.                               ceiling relative to dollars or hours.

                TOTAL                                      HOURS OR DOLLARS
</TABLE>

Estimated Start Date:

Estimated Completion Date:

Explanation of any potential impacts to the overall program schedule and/or any
schedule changes on the Firm Fixed Price Contract No. ________.

Based upon the labor hours expended for the professional consulting effort
authorized by CLIENT as defined in this Professional Services Proposal that
includes the Scope of Work, all labor and services performed by CONSULTANT shall
be invoiced monthly in accordance with the agreed upon Labor Rates. CONSULTANT's
expenses are not included in the Labor Rates and will be reimbursed at cost and
are estimated to be $________. Expenses shall be reimbursed in accordance with
Clause 5 of this CONSULTANT Agreement.

Amendment 1 now forms an integral part of this Agreement. All other terms and
conditions of Agreement ________ will remain unchanged.

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed
by their duly authorized representatives.

--------------------------------------            Convergent Group

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

By:                                               By:
   -----------------------------------               ---------------------------
                                                           Glenn E. Montgomery
Title:                                            Title:   Chairman & CEO
      --------------------------------

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

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,             CONVERGENT GROUP     E-5
GAS BUSINESS UNIT
Proprietary and Confidential

<PAGE>   45

ATTACHMENT F - ELECTRONIC FUNDS TRANSFER

Instructions for transmitting funds to Convergent Group Corporation via wire are
as follows:

Wire to:          UMB Columbine Bank
                  6900 E. Hampden Avenue
                  Englewood, CO 80224

For credit to:    Convergent Group Corporation
                  Operating Account
                  6200 S. Syracuse Way
                  Suite #200
                  Englewood, CO 80111

                  Account #7170565404

If you have questions, please contact UMB Columbine Bank directly at (303)
758-2501. The persons to contact are Shelly Robbins or Marion Legett in the Wire
Transfer Department. Convergent Group Corporation is the Controller at (303)
741-8400.

--------------------------------------------------------------------------------
CITIZENS UTILITY COMPANY, ENERGY SECTOR,                CONVERGENT GROUP     F-1
GAS BUSINESS UNIT
Proprietary and Confidential
<PAGE>   46

                                  [CONVERGENT
                                     GROUP
                                     LOGO]

                                  ATTACHMENT G

                                PROJECT SCHEDULE
                                TO BE DETERMINED

<PAGE>   47

ATTACHMENT G - PROJECT SCHEDULE

(To be determined)

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,             CONVERGENT GROUP      G-1
GAS BUSINESS UNIT
Proprietary and Confidential

<PAGE>   48

                                                                   EXHIBIT 10.19

ATTACHMENT H - DELIVERABLE ACCEPTANCE PROCEDURES

As work on this project progresses, CONSULTANT will prepare a Deliverable
Acceptance Agreement, which will include a detailed description of the
Deliverables listed in the Payment section of the Contract. The CONSULTANT
Project Manager and the CLIENT Project Manager will mutually agree as to the
description of each of the Deliverables and upon an appropriate Detailed
Schedule for CLIENT to provide inputs to CONSULTANT for these Deliverables. The
CONSULTANT and CLIENT Project Managers will indicate agreement to the
Deliverable Description and Detailed Schedule by signing the Deliverable
Acceptance Agreement in the appropriate signature block.

When the Deliverables are completed by CONSULTANT, CLIENT will formally accept
each set of Deliverables by signing the Deliverable Acceptance Agreement in the
appropriate signature block.

SAMPLE DELIVERABLE ACCEPTANCE AGREEMENT

DESIGN GIS PROJECT PURCHASE ORDER NUMBER
CONVERGENT GROUP CONTRACT NUMBER
DATE OF CONTRACT
PARTIES TO CONTRACT
LINE ITEM NUMBER
DELIVERABLE DESCRIPTION

CONSULTANT and CLIENT mutually agree that when the criteria set forth in this
document are met by CONSULTANT, CLIENT will accept these Deliverables in
accordance with the referenced Contract Line Item. The purpose of this
Deliverable Acceptance Agreement is to detail the description of the
Deliverables for this Line Item, to bound the types and/or quantities of
Deliverables, and/or limit the time period for CLIENT to review and provide
inputs for this Deliverable from CONSULTANT.

Additionally, this Agreement provides for formal acceptance of Deliverables. In
case of a conflict between the terms of this Deliverable Acceptance Agreement
and the terms of the Contract, the Contract terms will take precedence.

--------------------------------------------------------------------------------
CITIZENS UTILITIES COMPANY, ENERGY SECTOR,        CONVERGENT GROUP           H-1
GAS BUSINESS UNIT
Proprietary and Confidential
<PAGE>   49
ATTACHMENT H - DELIVERABLE ACCEPTANCE PROCEDURES

DETAILED DESCRIPTION OF THE DELIVERABLES

Both CONSULTANT and CLIENT agree that when two copies of the above Deliverables
are delivered to and accepted by CLIENT, this part of the contract will be
considered complete. Upon completion, CLIENT agrees to pay CONSULTANT the Price
for this Deliverable as described in the Contract.

AGREEMENT TO DESCRIPTION OF DELIVERABLES

Citizens Utilities Company/             Convergent Group
DESIGN GIS Project

By:                                     By:
   -----------------------------           ------------------------------------
Project Manager                         Project Manager

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

ACCEPTANCE OF DELIVERABLES

CLIENT agrees that the above Deliverables are acceptable and CLIENT agrees that
CONSULTANT's obligations as they relate to this Contract Line Item have been
satisfied. Any further work required on this Line Item will be considered a
Change Order and will be processed in accordance with the Change Order
Procedure.

CONSULTANT is hereby authorized to invoice CLIENT for these Deliverables in
accordance with the terms and conditions of the Contract.

Citizens Utilities Company/DESIGN GIS Project

By:
   -------------------------------
Project Manager

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

--------------------------------------------------------------------------------
H-2   CONVERGENT GROUP                CITIZENS UTILITIES COMPANY, ENERGY SECTOR,
                                                               GAS BUSINESS UNIT
                                                    Proprietary and Confidential

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