AMENDMENT NUMBER TWO TO THE
                          NICHOLS RESEARCH CORPORATION
                      1988 EMPLOYEES' STOCK PURCHASE PLAN

       Pursuant  to  Section  7.1 of the Nichols Research  Corporation  1988

Employees' Stock Purchase Plan  (the  "Plan"),  Nichols Research Corporation

(the "Employer"), hereby amends the Plan as follows:

       1.    Effective December 1, 1989, the first  sentence  of Section 3.1

is  hereby  deleted  in  its  entirety  and  the  following new sentence  is

substituted in its place:

             On March 1, 1989, and each March 1, June  1,  September  1, and
       December  1  thereafter,  an Employee may elect to participate in the
       Plan by authorizing payroll deductions under Section 5.1.

       2.    Effective December 1,  1989,  the third sentence of Section 5.1

is deleted in its entirety and the following  new sentence is substituted in

its place:

             Deductions may be authorized beginning  March  1,  1989, or any
       June  1,  September  1,  December  1,  or March 1 thereafter, in  any
       integral percentage, up to ten (10%) percent  of  an Employee's basic
       rate of compensation paid by the Employer.

       Except  as  amended  above, the Plan shall remain in full  force  and

effect according to its terms and provisions.

                                     NICHOLS RESEARCH CORPORATION


                                          Chris H. Horgen
                                     By:_________________________
                                           Chris H. Horgen
                                           Chief Executive Officer

                                AMENDMENT THREE
                       1988 EMPLOYEE STOCK PURCHASE PLAN

       The Nichols Research Corporation 1988 Employee Stock Purchase Plan is

hereby amended to provide that notwithstanding anything to the contrary, the

Plan shall be administered by  a  committee of not less than two members and

that all committee members shall be  disinterested directors as that term is

defined  under  Rule  16(b-3) as adopted  by  the  Securities  and  Exchange

Commission.  This Amendment shall be effective May 1, 1991.

       In addition, the  Plan is further amended to provide that all persons

subject to the reporting requirements  of  Section  16(a)  of the Securities

Exchange  Act  of  1934,  who  ceases  participation  in  the  Plan may  not

participate again for at least six (6) months.

       In  all other respects, the Plan as previously amended, shall  remain

in full force and effect according to its terms and conditions.

                               NICHOLS RESEARCH CORPORATION



                                     Chris H. Horgen
                               By:________________________________
                                     Chris H. Horgen
                                     Its Chief Executive Officer

                             AMENDMENT NUMBER FOUR
                      TO THE NICHOLS RESEARCH CORPORATION
                      1988 EMPLOYEES' STOCK PURCHASE PLAN

       Pursuant  to  Section  7.1  of  the Nichols Research Corporation 1988

Employees' Stock Purchase Plan (the "Plan"),  Nichols  Research  Corporation

(the "Employer"), hereby amends the Plan as follows:

       1.    Effective  March 1, 1992, the last sentence of Section  3.1  of

the Plan is hereby deleted in its entirety and the following new sentence is

substituted in its place:

             Once participation  is  discontinued hereunder, an Employee may
       not again elect to participate  in the Plan until the next succeeding
       March   or,  in  the case of an Employee  subject  to  the  reporting
       requirements of Section  16(a)  of  the Securities Act of 1934, until
       the later of (I) the March 1 immediately following his discontinuance
       of payroll deductions, or (ii) the March  1  next occurring after the
       date   which  is  six  (6)  months  after  the  date  such   Employee
       discontinued payroll deductions under the Plan.

       2.    Effective March 1, 1992, the last sentence of Section 5.1 of the

the Plan is hereby  deleted  in  its  entirety and the following new sentence

is substituted in its place:

             A payroll deduction authorization  hereunder  shall  remain  in
       effect until changed or discontinued under Section 5.3.

       3.    Effective  March  1,  1992,  Section  5.3 of the Plan is hereby

deleted in its entirety and the following new Section  5.3 is substituted in

its place:

             5.3   CHANGE;  DISCONTINUANCE.   (a) Any Employee  who  is  not
       subject  to  the  reporting  requirements of  Section  16(a)  of  the
       Securities Exchange Act of 1934 may decrease (but not below 1% of his
       basic rate of compensation paid  by the Employer) or increase (within
       the limits specified in Section 5.1)  payroll  deductions  authorized
       under  Section  5.1  by  signing and filing with his Employer a  form
       provided for this purpose.   Such  change in payroll deductions shall
       be effective on the March 1, June 1,  September 1, or December 1 next
       occurring  after  the  Employee's  change form  is  received  by  his
       Employer.

                   An  Employee  subject to the  reporting  requirements  of
       Section 16(a) of the Securities  Exchange  Act of 1934 may not change
       his payroll deductions in accordance with this Section 5.3

             (b)   An Employee may discontinue payroll deductions authorized
       under  Section  5.1  at  any  time, by signing and  filing  with  his
       Employer, within the time prescribed in rules and regulations adopted
       under  Article  VIII,  a  form  provided   for  this  purpose.   Once
       discontinued  hereunder, payroll deductions may  not  be  made  again
       until the next  succeeding  March  1  or,  in the case of an Employee
       subject  to  the  reporting  requirements  of Section  16(a)  of  the
       Securities Exchange Act of 1934, until the later  of  (I) the March 1
       immediately  following  his discontinuance of payroll deductions,  or
       (ii) the March 1 next occurring  after  the  date  which  is  six (6)
       months  after  the date such Employee discontinued payroll deductions
       under the Plan.

       Except as amended  above,  the  Plan  shall  remain in full force and

effect according to its terms and provisions.

       Done this the 8th day of April, 1993.

                               NICHOLS RESEARCH CORPORATION


                                     Chris H. Horgen
                               By:______________________________
                                     Its Chief Executive Officer



                          AMENDMENT NUMBER FIVE TO THE
                          NICHOLS RESEARCH CORPORATION
                      1988 EMPLOYEES' STOCK PURCHASE PLAN

       Pursuant  to  Section  7.1 of the Nichols Research  Corporation  1988

Employees' Stock Purchase Plan  (the  "Plan"),  Nichols Research Corporation

(the "Company"), hereby amends the Plan as follows:

       1.    Subject  to  approval  by  the  shareholders  of  the  Company,

effective March 1, 1994, the first sentence of  Section  4.2  of the Plan is

hereby deleted in its entirety and the following new sentence is substituted

in its place:

             Stock shall be purchased under each Option at 85%  of  its fair
       market value on the last day of the Option Period.

       2.    Subject  to  approval  by  the  shareholders  of  the  Company,

effective  March  1, 1994, the first sentence of Section 4.5 of the Plan  is

hereby deleted in its entirety and the following new sentence is substituted

in its place:

             Notwithstanding  any  other provision of this Plan, no Employee
       may purchase in an Option Period more than the number of shares equal
       to 10% of his annual basic rate of compensation divided by 85% of the
       fair market value of Stock, both  determined  on  the last day of the
       Option Period.

       Except  as  amended  above, the Plan shall remain in full  force  and

effect according to its terms and provisions.

       Done this the 25th day of August, 1993.


                            NICHOLS RESEARCH CORPORATION


                                      Chris H. Horgen
                            By:____________________________________
                                 Its Chief Executive Officer


                          AMENDMENT NUMBER SIX TO THE
                          NICHOLS RESEARCH CORPORATION
                      1988 EMPLOYEES' STOCK PURCHASE PLAN

   Pursuant  to  Section  7.1  of  the  Nichols  Research  Corporation  1988

Employees' Stock Purchase Plan (the  "Plan"),  Nichols  Research Corporation

(the "Company"), hereby amends the Plan as follows:

   1.   Subject  to  approval by the shareholders of the Company,  effective

November 1, 1996, Section  7.1 of the Plan is hereby deleted in its entirety

and the following new Section 7.1 is substituted in its place:

        7.1 AMENDMENT.  The Board of Directors, insofar as permitted by law,
   shall have the right from  time to time with respect to any shares at the
   time not subject to options, to suspend or discontinue the Plan or revise
   or amend it in any respect whatsoever,  except  that  without approval of
   the shareholders of the Company, no such revision or amendment shall: (a)
   increase  (except  as provided in Section 4.7) the number  of  shares  of
   stock  available  for   purchase  under  the  Plan,  or  (b)  remove  the
   administration of the Plan from the Committee.

   2.   Subject to approval  by  the  shareholders of the Company, effective

November 1, 1996, the first two sentences  of  ARTICLE VIII  of the Plan are

hereby deleted in their entirety and the following sentences are substituted

in their place:

        The  Plan  shall  be administered by a committee  (the  "Committee")
   composed of the entire Board  of Directors or a committee of the Board of
   Directors that is composed solely  of two or more Non-Employee Directors.
   For this purpose, the term "Non-Employee  Director"  shall  mean a person
   who  is  a  member  of  the  Company's Board of Directors who (a) is  not
   currently  an  officer or employee  of  the  Company  or  any  parent  or
   subsidiary of the  Company,  (b)  does not directly or indirectly receive
   compensation for serving as a consultant  or  in  any  other non-director
   capacity from the Company or any parent or subsidiary of the Company that
   exceeds the dollar amount for which disclosure would be required pursuant
   to Item 404(a) of Regulation S-K promulgated under the Securities  Act of
   1933 and the Securities Exchange Act of 1934 ("Regulation S-K"), (c) does
   not possess an interest in any other transaction with the Company or  any
   parent  or  subsidiary  of  the  Company  for  which  disclosure would be
   required  pursuant  to  Item  404(a) of Regulation S-K, and  (d)  is  not
   engaged in a business relationship  with  the  Company  or  any parent or
   subsidiary of the Company which would be disclosable under Item 404(b) of
   Regulation  S-K.   In the event the Committee is a committee composed  of
   two or more Non-Employee  Directors, the Board of Directors may from time
   to time remove members from,  add  members to, and fill vacancies, on the
   Committee.  A member of the Committee shall be eligible to participate in
   the Plan and receive options under the Plan.

   Except as amended above, the Plan shall  remain  in full force and effect

according to its terms and provisions.

   Done this the 14th day of November, 1996.


                            NICHOLS RESEARCH CORPORATION


                                  Chris H. Horgen
                            By:____________________________________
                                 Its Chief Executive Officer