SETTLEMENT AGREEMENT

                  This Settlement Agreement (this "Agreement") is made as of
March 21, 2005, by and between International Business Machines Corporation
("IBM") and Compuware Corporation ("CPWR") (collectively, the "Parties").

WHEREAS the Parties are presently parties to certain litigation entitled
Compuware Corp. v. Int'l Bus. Mach. Corp., No. 02-70906 (E.D. Mich. filed March
12, 2002) (CASE A) (the "First Michigan Litigation"); Compuware Corp. v. Int'l
Bus. Mach. Corp., No. 02-70906 (E.D. Mich. filed March 12, 2002) (CASE B) (the
"Second Michigan Litigation"); Compuware Corp. v. Int'l Bus. Mach. Corp., No.
02-72752 (E.D. Mich. filed July 3, 2002) (the "Third Michigan Litigation"); and
Int'l Bus. Mach. Corp. v. Compuware Corp., No. 04-CV-000357 (CM)(LMS)(S.D.N.Y.
filed January 15, 2004) (the "New York Litigation", and together with the First
Michigan Litigation, the Second Michigan Litigation and the Third Michigan
Litigation, the "Litigations");

                  WHEREAS the Parties hereto wish to enter into this Agreement
and into the License Agreement (as defined below) and engage in certain
transactions described in this Agreement in order to obviate the need for
further protracted and expensive litigation, with no admission of liability by
any Party which each Party expressly denies; and

                  WHEREAS following a course of negotiations among the Parties
hereto and their respective counsel, the Parties have agreed to settle and
compromise all disputes, claims and controversies between them, including all
claims and counterclaims that were asserted or that could have been asserted in
the Litigations by any of the Parties;


                  NOW, THEREFORE, in consideration of the mutual promises and
undertakings set forth herein, the receipt and sufficiency of which are hereby
mutually acknowledged, and intending to be legally bound hereby, the Parties
hereby agree as follows:

1.       Definitions.

            (A) "Core Supplier Agreements" shall mean the Base Agreement dated
      as of November 1, 2002 (Agreement # 4900T40116-001) between IBM and CPWR
      (a copy of which is attached hereto as Exhibit A) and the Technical
      Services Statement of Work (SOW# 4903T40167) effective as of November 1,
      2003 between CPWR and IBM (as amended) (a copy of which is attached hereto
      as Exhibit B).

            (B) "CPWR Services" shall mean the Value Add Rate Services and the
      General Contract Rate Services.

            (C) "General Contract Rate Services" shall mean the services set
      forth on Schedule 1 to this Agreement, as the terms of such schedule may
      be amended from time to time pursuant to the Core Supplier Agreements.



                                                                               2

            (D) "In-Scope CPWR Claims" shall mean all claims pertaining to
      In-Scope CPWR Items (excluding claims of literal copyright infringement
      (i.e., line for line copying of copyrighted code or textual material) that
      were not and could not have been asserted in the Litigations).

            (E) "In-Scope CPWR Items" shall mean all trade secrets, confidential
      information and copyrights that as of or prior to the date of this
      Agreement are or were in any way embodied in, or associated with, the
      Mainframe Application Development Tools of CPWR or any of its
      subsidiaries.

            (F) "In-Scope IBM Claims" shall mean all claims pertaining to
      In-Scope IBM Items (excluding claims of literal copyright infringement (
      i.e., line for line copying of copyrighted code or textual material) that
      were not and could not have been asserted in the Litigations).

            (G) "In-Scope IBM Items" shall mean all trade secrets, confidential
      information and copyrights that as of or prior to the date of this
      Agreement are or were in any way embodied in, or associated with, the
      Mainframe Application Development Tools of IBM or any of its subsidiaries.

            (H) "Installed Base" shall mean licensed copies of CPWR software
      products for which IBM (or any of its subsidiaries) has made payments
      (either on its own behalf or on behalf of a customer of IBM or any of its
      subsidiaries) at or prior to the date of this Agreement.

            (I) "License Agreement" shall mean a license agreement in the form
      attached hereto as Exhibit C.

            (J) "Licensed Patents" shall have the meaning set forth in the
      License Agreement.

            (K) "Mainframe Application Development Tool" shall mean computer
      software that is designed to be used by computer programmers to perform
      tasks associated with the creation, development, debugging and ongoing
      maintenance of application software programs that execute on the class of
      computing devices known as mainframe computers (i.e., System/390
      architecture). Application development tools used by computer programmers
      with application software programs for other classes of computing devices
      are not included.

            (L) "Value Add Rate Services" shall mean the services set forth on
      Schedule 3 to this Agreement

2.       Stipulation of Voluntary Dismissal with Prejudice.

            (A) Promptly after the execution and delivery of this Agreement, the
      Parties shall execute and file with the relevant courts (i) a Stipulation
      and Order of Dismissal With Prejudice in the First Michigan Litigation,
      the Second Michigan Litigation and the Third Michigan Litigation, the form
      for which is attached hereto




                                                                              3

      as Exhibit D and (ii) a Stipulation and Order of Dismissal With Prejudice
      in the New York Litigation, the form of which is attached hereto as
      Exhibit E.

3.       Agreements Between the Parties.

            (A) Simultaneously with the execution and delivery of this
      Agreement, CPWR and IBM will execute (and deliver in accordance with the
      provisions of Paragraph 9(N) of this Agreement) the License Agreement.

            (B) (i) Subject to Section 3(B)(iv), IBM agrees that it (or its
      subsidiaries) will make payments to CPWR for licenses to CPWR software
      products ("License Payments") and maintenance of CPWR software products
      ("Maintenance Payments") in the amounts (each, a "Minimum Annual Software
      Commitment") and for the periods (each, a "Software Purchase Commitment
      Period") set forth below:



                  Period                                        Payments
                  ------                                        --------
                                                           
         Date of this Agreement through March 31, 2006        $20,000,000

         April 1, 2006 through March 31, 2007                 $40,000,000

         April 1, 2007 through March 31, 2008                 $40,000,000

         April 1, 2008 through March 31, 2009                 $40,000,000


      (ii) The Parties agree that (a) ongoing payments for maintenance of the
Installed Base will be deemed not to be Maintenance Payments for purposes of
this Agreement, and (b) all License Payments and Maintenance Payments (other
than with respect to the Installed Base) by IBM (or any of its subsidiaries),
including those made for or on behalf of customers of IBM or its subsidiaries,
will be taken into account for purposes of determining whether IBM's Minimum
Annual Software Commitments have been satisfied. The Installed Base will be out
of the scope of this Agreement, and IBM shall have no obligations under this
Agreement with respect to the Installed Base.

      (iii) Unless otherwise agreed by the Parties or their subsidiaries, all
purchases by IBM (or any of its subsidiaries) of CPWR software products and
maintenance for IBM's (or any of its subsidiaries') internal account and, at
IBM's option, for or on behalf of customers of IBM or its subsidiaries, shall be
made pursuant to an agreement in the form of License Agreement No. 117172 with
the changes set forth in Exhibit F (it being understood that License Agreement
No. 117172 itself shall not be amended); provided, that the pricing and terms of
such agreement shall be subject to the "most favored customer" provisions set
forth on Schedule 2 to this Agreement.

      (iv) If during any Software Commitment Period the aggregate amount of
License Payments and Maintenance Payments that IBM and its subsidiaries have
made (together with any License Payments or Maintenance Payments IBM is deemed
to have made pursuant to Section 3(B)(v)) is less than the Minimum Annual
Software Commitment for such Software Commitment Period, IBM will pay CPWR an
amount in



                                                                               4

cash equal to such shortfall within 30 days after receipt of a proper invoice,
which shall not be delivered prior to the end of such Software Commitment
Period.

      (v) If during any Software Commitment Period the aggregate amount of
License Payments and Maintenance Payments that IBM and its subsidiaries have
made (together with any License Payments or Maintenance Payments IBM is deemed
to have made pursuant to this clause (v)) exceeds the Minimum Annual Software
Commitment for such Software Commitment Period, IBM will be deemed to have made
License Payments and Maintenance Payments in the amount of such excess in the
immediately following Software Commitment Period.

      (vi) Notwithstanding anything in Section 3(B)(i) to the contrary, on or
before March 31, 2005, IBM shall make a payment in the amount of $20,000,000 in
respect of the Minimum Annual Software Commitment for the Software Purchase
Commitment Period commencing on the date of this Agreement, which payment shall
count as License Payments and Maintenance Payments made in such Software
Purchase Commitment Period for purposes of this Agreement; provided, that IBM's
obligation to make such payment is subject to its prior receipt of a proper
invoice from CPWR in respect of such payment.

            (C) (i) IBM agrees that it (or its subsidiaries) will offer to
      purchase from CPWR the following amounts of CPWR Services (each, a
      "Minimum Annual Services Offer Commitment") for the periods (each, a
      "Services Commitment Period") set forth below pursuant to the terms and
      subject to the conditions of the Core Supplier Agreements:



                  Period                                        Amounts
                  ------                                        -------
                                                           
         Date of this Agreement through March 31, 2006        $40,000,000

         April 1, 2006 through March 31, 2007                 $60,000,000

         April 1, 2007 through March 31, 2008                 $80,000,000

         April 1, 2008 through March 31, 2009                 $80,000,000


      (ii) IBM agrees that no less than $130,000,000 of the aggregate amount of
CPWR Services that IBM (or any of its subsidiaries) offers to purchase pursuant
to the preceding paragraph will be Value Add Rate Services.

      (iii) The rates at which IBM (or any of its subsidiaries) will offer to
purchase General Contract Rate Services will be based on the rates set forth on
the price schedules then in effect for the IGS Core Supplier Program. The rates
at which IBM (or any of its subsidiaries) will offer to purchase Value Add Rate
Services will be based on the rates set forth on Schedule 2 to this Agreement,
which may be changed from time to time by IBM; it being understood and agreed
that it is the intent of the Parties with respect to the Value Add Rate Services
that the rates for such services will be generally consistent with the



                                                                               5

rates for such services on an overall basis that IBM offers to purchase from
similarly situated IBM Core Service Providers.

         (iv) The intent of the parties with respect to General Contract Rates
Services is that the mix of such services that IBM (or any of its subsidiaries)
offers to purchase from CPWR pursuant to Section 3(C)(i) will be generally
consistent with the mix of such services that IBM (or any of its subsidiaries)
offers to purchase from similarly situated IBM Core Services Providers, and IBM
agrees that it will not implement measures designed to circumvent such intent.

         (v) The Parties agree that IBM will have fulfilled its obligations
under Section 3(C)(i) for a Services Commitment Period if IBM (or any of its
subsidiaries) offers to purchase (or, is deemed to have offered to purchase
pursuant to clause (vi) below) CPWR Services from CPWR during such Services
Commitment Period in an aggregate amount equal to the Minimum Annual Services
Commitment for such Services Commitment Period, regardless of whether CPWR
accepts any such offers.

         (vi) If during any Services Commitment Period IBM (or any of its
subsidiaries) offers (or, pursuant to this sentence is deemed to have offered)
to purchase CPWR Services in an aggregate amount that exceeds the Minimum Annual
Services Commitment for such Services Commitment Period, IBM will be deemed to
have made offers to purchase CPWR Services in the amount of such excess in the
immediately following Services Commitment Period.

         (vii) Notwithstanding anything in this agreement to the contrary, IBM's
obligation to offer to purchase CPWR Services from CPWR pursuant to this Section
3(C) is subject to (a) CPWR's compliance with the terms and conditions of the
Core Supplier Agreements and (b) the maintenance of an acceptable supplier
performance score by CPWR as set forth on Schedule 4 to this Agreement.

         (D) Within a reasonable period of time following the Effective Date
(not to exceed six months after the Effective Date), IBM will offer to include
CPWR in the Premier Level of its Partnerworld Program. If CPWR accepts such
offer, CPWR will be subject to the same terms and conditions as other members of
the Premier Level of IBM's Partnerworld Program as in effect from time to time;
provided, however, that CPWR shall not use any logo, emblem or similar marketing
device associated with membership in the Premier Level of IBM's Partnerworld
Program or receive any marketing or sales, support from IBM, in each case in
connection with any products not listed on Schedule 5 attached hereto (it being
understood that IBM will reasonably consider requests by CPWR to add new
products to such schedule as long as CPWR demonstrates that such products do not
compete with any IBM products).

         (E) IBM and CPWR agree that within 90 days after the Effective Date,
IBM and CPWR will appoint a joint task force to study and demonstrate the value
of deploying CPWR software products in IBM's internal account.

4.       Additional Agreements.


                                                                               6

        (A) Releases and Covenant Not To Sue by IBM.

            (1) In consideration of mutual releases, covenants, licenses,
agreements and other good and valuable consideration, the receipt of which is
hereby acknowledged, IBM on behalf of itself, its subsidiaries, affiliates and
related entities, and each of their past, present and future employees,
officers, directors, shareholders, agents, assigns, heirs, executors,
administrators, insurers, attorneys and consultants (all of the foregoing being
referred to in this paragraph as "Releasors"), to the fullest extent permitted
by law, hereby releases, acquits, and forever discharges CPWR (including its
respective subsidiaries, affiliates and related entities, and each of its past,
present and future employees, officers, directors, agents, assigns, heirs,
executors, administrators, insurers, attorneys and consultants, and further
including licensees and direct or indirect customers of CPWR based on their use,
importation, offer for sale, license, lease, or other transfer of products or
technology designed, manufactured, licensed and/or sold directly or indirectly
by CPWR (all of the foregoing referred to in this paragraph as "Releasees"))
from, and covenants not to sue upon, all debts, demands, actions, causes of
action, suits, accounts, covenants, contracts, agreements, torts, damages,
expenses, attorneys' fees, and any and all claims, counterclaims, cross-claims,
defenses, offsets, judgments, demands, losses, liabilities, and indemnities of
all and any nature whatsoever, both at law and in equity, whether individual or
derivative, state or federal, accrued or unaccrued, which now exist or existed
at any time prior to the date of this Agreement, which, in each case, as of the
date of this Agreement were known by or should have been known by IBM
("Claims"), including any claim for fraudulent inducement to enter into this
Agreement, provided, however, that nothing contained herein is intended to or
shall release the Releasees from any obligations under this Agreement or from
any obligations under any other agreements between the Parties in effect on the
date of this Agreement (except for obligations under such other agreements that
in any way relate to the subject matter of any claims made in the Litigations).

            (2) IBM agrees to indemnify and hold harmless CPWR from any claims
challenging the validity or enforceability of this Agreement and the License
Agreement being exchanged herewith on the ground that IBM lacked the authority
to enter into this Agreement or the License Agreement being exchanged herewith.
In the event that such a claim is brought, IBM agrees to indemnify CPWR for
reasonable attorneys' fees and costs CPWR incurs as a result of any such claim.

            (3) Subject to the last sentence of this paragraph (3),
notwithstanding anything contained in any agreement between the Parties, whether
such agreements are currently existing or entered into in the future (including
agreements entered into pursuant to this Agreement), to the contrary, IBM
covenants that in the future it will not bring suit based upon any In-Scope IBM
Claim, or assert in any way, in or out of a legal proceeding, any In-Scope IBM
Claim, against CPWR (including its respective subsidiaries, affiliates and
related entities, and each of its past, present and future employees, officers,
directors, agents, assigns, heirs, executors, administrators, insurers,
attorneys and consultants, and further including licensees and direct or
indirect customers of CPWR based on their use, importation, offer for sale,
license, lease, or other transfer of products or technology designed,
manufactured, licensed and/or sold directly or indirectly



                                                                               7

by CPWR). This paragraph 3 shall not apply to any agreement entered into in the
future if such agreement expressly references this paragraph 3 of this Agreement
and waives the applicability to such agreement of this paragraph (3) of this
Agreement.

         (B) Releases and Covenant Not To Sue by CPWR.

            (1) In consideration of mutual releases, covenants, licenses,
agreements and other good and valuable consideration, the receipt of which is
hereby acknowledged, CPWR, on behalf of itself, its subsidiaries, affiliates and
related entities, and each of their past, present and future employees,
officers, directors, shareholders, agents, assigns, heirs, executors,
administrators, insurers, attorneys and consultants (all of the foregoing being
referred to in this paragraph as "Releasors"), to the fullest extent permitted
by law, hereby releases, acquits, and forever discharges IBM (including its
respective subsidiaries, affiliates and related entities, and each of its past,
present and future employees, officers, directors, agents, assigns, heirs,
executors, administrators, insurers, attorneys and consultants, and further
including licensees and direct or indirect customers of IBM based on their use,
importation, offer for sale, license, lease, or other transfer of products or
technology designed, manufactured, licensed and/or sold directly or indirectly
by IBM (all of the foregoing referred to in this paragraph as "Releasees"))
from, and covenants not sue upon, all debts, demands, actions, causes of action,
suits, accounts, covenants, contracts, agreements, torts, damages, expenses,
attorneys' fees, and any and all claims, counterclaims, cross-claims, defenses,
offsets, judgments, demands, losses, liabilities, and indemnities of all and any
nature whatsoever, both at law and in equity, whether individual or derivative,
state or federal, accrued or unaccrued, which now exist or existed at any time
prior to the date of this Agreement, which, in each case, as of the date of this
Agreement were known by or should have been known by CPWR ("Claims"), including
any claim for fraudulent inducement to enter into this Agreement, provided,
however, that nothing contained herein is intended to or shall release the
Releasees from any obligations under this Agreement or from any obligations
under any other agreements between the Parties in effect on the date of this
Agreement (except for obligations under such other agreements that in any way
relate to the subject matter of any claims made in the Litigations).

            (2) CPWR further agrees to indemnify and hold harmless IBM from any
claims challenging the validity or enforceability of this Agreement and the
License Agreement being exchanged herewith on the ground that CPWR lacked the
authority to enter into this Agreement or the License Agreement being exchanged
herewith. In the event that such a claim is brought, CPWR agrees to indemnify
IBM for reasonable attorneys' fees and costs IBM incurs as a result of any such
claim.

            (3) Subject to the last sentence of this paragraph (3),
notwithstanding anything contained in any agreement between the Parties, whether
such agreements are currently existing or entered into in the future (including
agreements entered into pursuant to this Agreement), to the contrary, CPWR
covenants that in the future it will not bring suit based upon any In-Scope CPWR
Claim, or assert in any way, in or out of a legal proceeding, any In-Scope CPWR
Claim, against IBM (including its respective subsidiaries, affiliates and
related entities, and each of its past, present and future



                                                                               8

employees, officers, directors, agents, assigns, heirs, executors,
administrators, insurers, attorneys and consultants, and further including
licensees and direct or indirect customers of IBM based on their use,
importation, offer for sale, license, lease, or other transfer of products or
technology designed, manufactured, licensed and/or sold directly or indirectly
by IBM). This paragraph 3 shall not apply to any agreement entered into in the
future if such agreement expressly references this paragraph 3 of this Agreement
and waives the applicability to such agreement of this paragraph (3) of this
Agreement.

            (C) Exceptions; Protective Order. The releases and covenants not to
      sue set forth in Paragraphs 4(A) and 4(B) will not release, acquit or
      discharge any obligation under, or obligate any party not to sue under,
      (i) this Agreement, (ii) the License Agreement to be entered into pursuant
      to Paragraph 3 of this Agreement, (iii) the Stipulations of Voluntary
      Dismissal entered into concurrently with this Agreement pursuant to
      Paragraph 2 of this Agreement or (iv) the July 18, 2002 Protective Order.
      With regard to CONFIDENTIAL, HIGHLY CONFIDENTIAL and/or RESTRICTED
      TECHNICAL MATERIAL produced during the Litigations or any work product
      containing CONFIDENTIAL, HIGHLY CONFIDENTIAL and/or RESTRICTED TECHNICAL
      MATERIAL (collectively "Designated Materials"), each Party (including
      attorneys, experts, consultants and any other person to whom the other
      Party's CONFIDENTIAL, HIGHLY CONFIDENTIAL and/or RESTRICTED TECHNICAL
      MATERIAL (as defined in the July 18, 2002 Protective Order) was provided)
      within 90 calendar days of the execution of this Agreement will return all
      Designated Materials to the Party disclosing such materials and/or certify
      destruction or deletion of all Designated Materials; provided, that
      outside counsel for the Parties shall be permitted to retain one file copy
      of materials that have been filed under seal with the applicable Clerk of
      the Court.

5.       Representations and Warranties.

            (A) CPWR represents and warrants that (i) as of the Effective Date
      it has the exclusive right and power to grant releases and licenses to,
      and covenants not to sue in respect of, CPWR's Licensed Patents; (ii) that
      it has not assigned, sold, transferred, or otherwise disposed of its right
      and power to grant releases and licenses in, and covenants not to sue in
      respect of, CPWR's Licensed Patents; (iii) that there are no outstanding
      agreements, assignments, or encumbrances inconsistent with any of the
      provisions of this Agreement or CPWR's obligations hereunder; and (iv)
      that to the extent approval of another party is necessary to grant IBM the
      rights set forth in this Agreement and in the License Agreement that
      approval has been obtained.

            (B) CPWR (including its subsidiaries, affiliates, and related
      entities) represents and warrants that as of the date of this Agreement
      that it has the sole authority to license and grant releases and covenants
      not to sue for infringement of CPWR's Licensed Patents and grant releases
      and covenants not to sue for infringement or misappropriation of all other
      intellectual property of CPWR.



                                                                               9

            (C) IBM represents and warrants that (i) as of the Effective Date it
      has the exclusive right and power to grant releases and licenses to, and
      covenants not to sue in respect of, IBM's Licensed Patents; (ii) that it
      has not assigned, sold, transferred, or otherwise disposed of its right
      and power to grant releases and licenses in, and covenants not to sue in
      respect of, IBM's Licensed Patents; (iii) that there are no outstanding
      agreements, assignments, or encumbrances inconsistent with any of the
      provisions of this Agreement or IBM's obligations hereunder; and (iv) that
      to the extent approval of another party is necessary to grant CPWR the
      rights set forth in this Agreement and in the License Agreement that
      approval has been obtained.

            (D) IBM (including its subsidiaries, affiliates, and related
      entities) represents and warrants that as of the date of this Agreement
      that it has the sole authority to license and grant releases and covenants
      not to sue for infringement of IBM's Licensed Patents and grant releases
      and covenants not to sue for infringement or misappropriation of all other
      intellectual property of IBM.

            (E) The Parties represent and warrant that they possess the full and
      complete authority to covenant and agree as provided herein, and further
      represent and warrant that they have full and complete authority to
      execute the Agreement. In addition, the individuals executing this
      Agreement on behalf of the respective Parties represent and warrant that
      they have been duly authorized and empowered to execute and deliver this
      Agreement on behalf of their respective entities.

            (F) The Parties represent and warrant that, as of the Effective
      Date, they have not taken any actions that prevent them from settling the
      Litigations upon the terms and conditions set forth in this Agreement or
      preventing them from granting the releases or covenants not to sue set
      forth in this Agreement.

            (G) The Parties represent and warrant that, as of the Effective
      Date, they have not assigned to any third party any claims, counterclaims,
      cross-claims, demands, causes of action, damages or expenses that but for
      such assignment, would be subject to the releases or covenants not to sue
      set forth in Paragraph 4(A) or (B).

6.       Effective Date.

            (A) This Agreement (other than Paragraphs 2, 5, 6, 7, 8 and 9, which
      shall become effective on the date of this Agreement) shall not be
      effective until the first date on which all of the Stipulations referred
      to in Paragraph 2 above shall have been entered by the applicable courts,
      and the parties hereto shall use their best efforts to cause such
      Stipulations to be so entered on or as soon as possible after the date
      hereof.

7.       Disclosures; Confidentiality.

            (A) IBM's press release with respect to the settlement of the
      Litigations shall be in the form of Exhibit G hereto, and CPWR's press
      release with respect to the settlement of the Litigations shall be in the
      form of Exhibit H hereto (the "Press Releases").



                                                                              10

            (B) Notwithstanding anything in this Agreement to the contrary, in
      no event shall any party make any untrue statement regarding this
      Agreement or omit to state any fact necessary in order to make any
      statement regarding this Agreement not misleading.

8.       Relief.

            (A) (i) Prior to filing suit, instituting an action or claim or
      seeking other relief (a "Suit") in connection with any dispute between the
      Parties arising out of this Agreement, the License Agreement or any other
      agreement entered into pursuant to this Agreement, the Parties shall
      attempt to resolve such dispute by good faith negotiations. Such
      negotiations shall proceed as follows:

                  (a) Either Party may send a written notice to the other Party
         requesting such negotiations, which notice shall contain a detailed
         written summary of such dispute. Promptly following receipt of such
         notice by the other Party, each Party shall cause the individual
         designated by it as having general responsibility for the Agreement to
         meet in person with the individual so designated by the other Party to
         discuss the dispute.

                  (b) If the dispute is not resolved within 15 days after the
         first meeting between such individuals (or if earlier within 30 days of
         the notice referred to in clause (a) above), then, upon the written
         request of either Party, IBM shall nominate within five days after the
         end of such 15 or 30 day period, whichever is earlier, one
         representative with a title of vice president or higher, and CPWR shall
         nominate within five days after the end of such 15 or 30 day period,
         whichever is earlier, one representative with a title of vice president
         or higher, which representatives shall meet in person within 10 days
         after the last of such nominations are made and attempt in good faith
         to negotiate a resolution to the dispute.

Neither Party shall file a Suit in connection with the dispute until at least 30
days after the first meeting between the representatives described in Section
8(A)(i)(b) (or if earlier 45 days after the notice referred to in Section
8(A)(i)(b)). Prior to filing a Suit in connection with any dispute, the Party
that sent the written notice referred to in Section 8(A)(i)(a) shall provide the
other Party with 10 business days prior written notice of its intent to file
such Suit. During such 10 business day period, the Party receiving such notice
shall select a court that would have subject matter jurisdiction over such Suit
and in which such Suit shall be brought (the "Selected Court"), and such Party
shall notify the other Party in writing of the Selected Court within such 10
business day period.

            (B) The remedy for the breach of this Agreement, shall be limited to
      compensatory damages and/or injunctive relief, as appropriate, for breach
      of contract and shall not include the reinstatement of any of the Claims.

            (C) Any Suit arising out of this Agreement, the License Agreement or
      any other agreement entered into pursuant to this Agreement shall be
      brought and



                                                                              11

      litigated only in the Selected Court; provided, that the Selected Court
      has subject matter jurisdiction over the suit. In the event such a Suit is
      brought, the Parties hereby waive any defense or objection based on lack
      of in personam jurisdiction or venue or any claim of forum non conveniens
      and further agree to waive their right to a trial by jury.

9.       Miscellaneous.

            (A) Nothing in this Agreement is, nor will be deemed to be, an
      admission of liability or wrongdoing by any Party, which each Party
      expressly denies.

            (B) This Agreement cannot be terminated, modified, amended or
      changed in any respect orally or by the conduct of the Parties. Any
      termination, amendment, modification or change of this Agreement may be
      made only by a writing signed by all Parties.

            (C) Whenever possible, each provision of this Agreement will be
      interpreted in such manner as to be effective and valid under applicable
      law, but if any provision of this Agreement will be prohibited by or
      invalid under applicable law, such provision will be ineffective to the
      extent of such prohibition or invalidity, without invalidating the
      remainder of such provision or the remaining provisions of this Agreement.

            (D) This Agreement will be interpreted, and the legal relations of
      the parties hereunder will be determined, in accordance with the laws of
      the State of Michigan, excluding any conflict-of-laws or choice-of-law
      rule or principle that might otherwise refer construction or
      interpretation of this Agreement to the substantive law of another
      jurisdiction.

            (E) This Agreement, along with the License Agreement and the
      concurrently executed Stipulations referred to in Paragraph 2 above,
      represents the complete undertaking and agreement of the Parties with
      respect to the subject matter hereof and thereof and supersedes all prior
      agreements and understandings relating to such subject matter.

            (F) This Agreement may be executed in several counterparts, each of
      which shall be deemed an original but all of which shall constitute one
      and the same instrument.

            (G) The descriptive headings of any sections of this Agreement are
      inserted for convenience of reference only and do not constitute a part of
      this Agreement. All exhibits and schedules referred to in this Agreement
      are fully incorporated into this Agreement.

            (H) Each Party represents that the person signing this Agreement,
      the License Agreement and the Stipulations referred to in Paragraph 2
      above on its behalf has full authority to enter into this Agreement, the
      License Agreement and



                                                                              12

      such Stipulation, and that such person has the authority and capacity to
      bind that party thereto.

            (I) Each Party acknowledges and represents that in entering into
      this Agreement, the License Agreement and the Stipulations referred to in
      Paragraph 2 above, it is not relying on any representations, by or on
      behalf of any other Party, not expressly set forth in this Agreement or in
      the License Agreement and that no such representations have been made to
      it by or on behalf of any other Party.

            (J) Each Party acknowledges and represents that it has reviewed this
      Agreement and the exhibits and schedules to this Agreement with that
      Party's counsel and that each Party understands the terms of this
      Agreement and its exhibits and schedules.

            (K) This Agreement shall be binding upon and inure to the benefit of
      the Parties hereto and their respective predecessors, affiliates,
      representatives, successors and assigns.

            (L) Each Party and counsel to each Party have reviewed and approved
      this Agreement, and, accordingly, any presumption or other rule of
      construction that any ambiguities be resolved against the drafting Party
      shall not be employed in the interpretation of this Agreement.

            (M) Each Party shall pay all expenses (including, without
      limitation, attorneys' fees) incurred by it in connection with the
      Litigations, this Agreement, the License Agreement and the other matters
      referred to herein. For the avoidance of doubt, (i) the Parties shall not
      charge each other for any discovery costs incurred in connection with the
      Litigation and (ii) IBM shall have no obligation to pay any Sanction Costs
      other than those already paid. For purposes of this Agreement, "Sanction
      Costs" shall mean any costs required to be paid by IBM under the September
      15, 2004 Order.

            (N) All notices under this Agreement shall be in writing and will be
      deemed to have been duly delivered when delivered by hand or sent by
      facsimile to, or when received from a reputable overnight delivery service
      at, the appropriate facsimile numbers or addresses set forth below (or to
      or at such other facsimile numbers or addresses as may be designated by a
      notice delivered in accordance with the foregoing):

                           if to CPWR:

                                 Compuware Corporation
                                 One Campus Martius
                                 Detroit, MI 48226
                                 Attention:  Thomas M. Costello, Jr.
                                 Facsimile:  (313) 227-9320

                           if to IBM:

                                                                              13

                                 International Business Machines Corporation
                                 1133 Westchester Avenue, Room 1C205
                                 White Plains, NY 10604
                                 Attention:  Head of Litigation
                                 Facsimile:  (914) 642-4339


                           with a copy to:

                                 Cravath, Swaine & Moore LLP
                                 Worldwide Plaza
                                 825 Eighth Avenue
                                 New York, NY 10019-7475
                                 Attention:  Evan R. Chesler
                                 Facsimile:  (212) 474-3700



                                                                              14


                  IN WITNESS WHEREOF, this Agreement has been duly executed by
CPWR and IBM as of March 21, 2005.

                                     COMPUWARE CORPORATION


                                     by: /s/ Peter Karmanos, Jr.
                                         --------------------------------------
                                         Name: Peter Karmanos, Jr.
                                         Title: Chairman/CEO



                                     INTERNATIONAL BUSINESS MACHINES CORPORATION


                                     by: /s/ E. M. Lineen
                                         --------------------------------------
                                         Name: E. M. Lineen
                                         Title: Senior V.P. and General Counsel