Exhibit 10.8

                                 Gideon Gartner
                              146 West 57th Street
                            New York, New York 10019


                                December 24, 1998



Giga Information Group, Inc.
One Longwater Circle
Norwell, Massachusetts 02061

Gentlemen:

            This letter is intended to set forth our understanding concerning my
future relationship with the Company effective as of January 1, 1999.

            1.    I will continue as Chairman of the Board and Founder for so
                  long as I am a director but I will have no duties or
                  responsibilities as an employee other than as set forth in
                  this letter. At the pleasure of the Board, I will continue to
                  act as President and Chief Executive Officer until the Board
                  hires a new Chief Executive Officer (the "CEO").

            2.    The Company will seek to hire a new CEO with strong operating
                  experience who will report to the Board, and I will help this
                  process in all respects, although the search responsibility
                  will be carried out by a Search Committee appointed by the
                  Board. While I may state my views to the Board, I will
                  completely support the decision of the Search Committee.

            3.    The Board will form a Management Review Committee to serve for
                  approximately one year to review Company operations with
                  members of the management team and to provide the necessary
                  training of the CEO. The Committee will consist of the CEO,
                  Rick Crandall (or, if he is unable to serve, another designee
                  of the Board) and I, and the members will make every effort to
                  optimize their working relationship. The Committee may be
                  discontinued by the Board at such time as the




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                  Board deems appropriate after consultation with the members of
                  the Committee.

            4.    I will be a part time employee and I will make myself
                  available to the Company, as requested, for up to 80 business
                  days during the first year of this agreement, which amount of
                  time will be reduced by up to 15% in each year thereafter as
                  determined by the Company after consultation with me. We
                  recognize that during the first several months of this
                  arrangement I may be required to devote more time given the
                  need to identify and hire the new CEO.

                  I will regularly review with the CEO my anticipated services,
                  including annual time estimates, and will cooperate with the
                  CEO in rendering such services as may be reasonably requested
                  by the CEO or by the Board, all subject to the direction and
                  approval of the Board.

             5.   As compensation for my services as an employee, I will
                  receive a salary at the rate of $260,000 per annum for the
                  first year, payable in accordance with the Company's regular
                  payroll practices for executives. This rate of compensation
                  will decrease by up to 15% each year thereafter commensurate
                  with my level of availability in the relevant year under
                  Paragraph 4, provided that we may mutually agree in writing
                  to an increase in the level of my service in any year with a
                  commensurate increase in my compensation.

             6.   I will continue to receive Company health and related
                  benefits so long as I am an employee, including secretarial
                  support and computer support consistent with my position.
                  Thereafter, I will be entitled to health benefits to
                  supplement those I receive from other sources to match the
                  Company's then current coverage, provided that the Company's
                  annual premium cost shall not exceed $10,000. I will also be
                  afforded the opportunity to obtain fringe benefits
                  comparable to those made available to the CEO on a basis of
                  comparability that recognizes the differences in services
                  and compensation, except that life insurance benefits
                  equivalent to those provided to the CEO will be offered to
                  me. I will be reimbursed for reasonable and necessary
                  business expenses incurred on behalf of the Company in
                  accordance with the Company's customary policies.



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December 24, 1998
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            7.    I will be subject to the same agreements relating to
                  confidentiality of Company information and ownership of
                  proprietary rights as are applicable to executives generally.

            8.    This agreement shall continue in full force and effect unless
                  and until terminated by either of us upon not less than 90
                  days' prior written notice to the other, with or without
                  cause. In the event of termination by the Company, I shall be
                  entitled to receive severance pay in accordance with the
                  Company's standard policy for senior executives and
                  commensurate with my standing as Chairman and Founder.

            9.    This agreement shall be governed by the laws of the State of
                  New York applicable to contracts made and performed therein.
                  This agreement may not be modified or amended orally but only
                  by an agreement in writing signed by both of us. The
                  Non-Competition Agreement, dated November 13, 1995, shall
                  remain in full force and effect

            10.   I agree that my obligations may not be delegated and that I
                  may not assign, transfer, pledge, hypothecate, encumber or
                  otherwise dispose of any of my rights hereunder, and any such
                  attempted delegation or disposition shall be null and void and
                  without effect.





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December 24, 1998
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            If the foregoing is in accordance with your understanding of our
arrangement, kindly sign the enclosed copy of this letter where indicated below,
whereupon this letter shall constitute an agreement between us.





                                   Sincerely,

                                   /s/ Gideon Gartner
                                   ------------------------------------
                                   Gideon Gartner


Accepted and Agreed to:

GIGA INFORMATION GROUP, INC.

By: /s/ Daniel M. Clarke
   ------------------------------------
   Name: Daniel M. Clarke
   Title: Senior Vice President
   Date: December 24, 1998