Exhibit 31.1

                                  CERTIFICATION
                                  -------------

 I, Michael E. Henry, certify that:

 1. I  have  reviewed  this annual  report  on  Form 10-K  of  Jack  Henry  &
 Associates, Inc.;

 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
 registrant as of, and for, the periods presented in this annual report;

 4. The  registrant's other  certifying officer  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 registrant 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 registrant, 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 registrant'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 registrant's internal  control
 over financial reporting that occurred  during the registrant's most  recent
 fiscal quarter, (the registrant's  fourth fiscal quarter in  the case of  an
 annual report)  that has  materially affected,  or is  reasonably likely  to
 materially  affect,  the  registrant's   internal  control  over   financial
 reporting; and

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

 a) All significant  deficiencies and material  weaknesses in  the design  or
 operation of internal controls over financial reporting which are reasonably
 likely to  adversely affect  the registrant'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 registrant's internal  controls
 over financial reporting.

 Date:  September 22, 2003
                                             /s/ Michael E. Henry
                                             ------------------------------
                                             Michael E. Henry
                                             Chief Executive Officer