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                                                                    EXHIBIT 31.1

                      CERTIFICATION PURSUANT TO SECTION 302
                        OF THE SARBANES-OXLEY ACT OF 2002

I, Justin M. MacIntosh, Chief Executive Officer, certify that:

     1.  I have reviewed this report on Form 10-KSB/A-1 of CorVu Corporation;

     2.  Based  on my  knowledge,  this  report  does  not  contain  any  untrue
         statement of a material fact or omit to state a material fact necessary
         to make the statements made, in light of the circumstances  under which
         such  statements  were made, not misleading  with respect to the period
         covered by this report;

     3.  Based on my knowledge,  the financial  statements,  and other financial
         information  included in this  report,  fairly  present in all material
         respects the financial condition,  results of operations and cash flows
         of the small business  issuer as of, and for, the periods  presented in
         this report;

     4.  The small  business  issuer's  other  certifying  officer(s)  and I are
         responsible for  establishing and maintaining  disclosure  controls and
         procedures  (as defined in Exchange Act Rules  13a-15(e) and 15d-15(e))
         for the small business issuer and have:

              (a) Designed such disclosure  controls and  procedures,  or caused
              such  disclosure  controls and procedures to be designed under our
              supervision,  to ensure that material  information relating to the
              small business issuer, including its consolidated subsidiaries, is
              made known to us by others  within  those  entities,  particularly
              during the period in which this report is being prepared;

              (b) Evaluated the  effectiveness  of the small  business  issuer's
              disclosure  controls and  procedures  and presented in this report
              our conclusions about the effectiveness of the disclosure controls
              and procedures, as of the end of the period covered by this report
              based on such evaluation; and

              (c)  Disclosed  in this  report any  change in the small  business
              issuer's  internal control over financial  reporting that occurred
              during the small business issuer's most recent fiscal quarter (the
              small  business  issuer's  fourth fiscal quarter in the case of an
              annual  report) that has  materially  affected,  or is  reasonably
              likely to materially  affect, the small business issuer's internal
              control over financial reporting; and

     5.  The small  business  issuer's  other  certifying  officer(s) and I have
         disclosed, based on our most recent evaluation of internal control over
         financial  reporting,  to the small business  issuer's auditors and the
         audit  committee of the small business  issuer's board of directors (or
         persons performing the equivalent functions):

              (a) All significant  deficiencies  and material  weaknesses in the
              design or operation of internal  control over financial  reporting
              which are reasonably likely to adversely affect the small business
              issuer's  ability  to  record,   process,   summarize  and  report
              financial information; and

              (b) Any fraud,  whether or not material,  that involves management
              or  other  employees  who  have a  significant  role in the  small
              business issuer's internal control over financial reporting.


Date: November 10, 2003
                                            /s/ Justin M. MacIntosh
                                            ----------------------------------
                                            Justin M. MacIntosh
                                            Chief Executive Officer