As filed with the Securities and Exchange Commission on November 25, 1998.

                                               Registration No. 333- _______


                                    FORM S-8

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                      TRANSACTION SYSTEMS ARCHITECTS, INC. 
                  (Exact name of registrant as specified in its
                                    charter)

                               Delaware 47-0772104
                (State or other jurisdiction of (I.R.S. Employer
               incorporation or organization) Identification No.)

                  224 South 108th Ave., Omaha, Nebraska 68154 
               (Address of Principal Executive Offices) (Zip Code)


                 Transaction Systems Architects, Inc. Deferred 
                               Compensation Plan 
                            (Full title of the plan)

                 David P. Stokes, General Counsel and Secretary
                      Transaction Systems Architects, Inc.
                          224 South 108th Ave., Omaha,
                                 Nebraska 68154
                     (Name and address of agent for service)

                                 (402) 334-5101 
                (Telephone number, including area code, of agent
                                  for service)

Calculation of Registration Fee - ------------------------ ---------------------- ---------------------- ---------------------- ---------------------- Title of securities Amount to be Proposed Proposed Amount of to be registered registered maximum offering maximum Registration fee price per unit aggregate offering price(1) - ------------------------ ---------------------- ---------------------- ---------------------- ---------------------- Transaction Systems $30,000,000 100% $30,000,000 $8,340 Architects, Inc. Deferred Compensation Plan Obligations(2)
(1) Estimated solely for the purpose of determining the registration fee. (2) The Transaction Systems Architects, Inc. Deferred Compensation Plan obligations are unsecured obligations of Transaction Systems Architects, Inc. to pay deferred compensation in the future in accordance with the Transaction Systems Architects, Inc. Deferred Compensation Plan. PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT Incorporation of Documents by Reference The documents listed in (a) through (c) below are incorporated by reference in this registration statement and all documents subsequently filed by the registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), prior to the filing of a post-effective amendment which indicates that all securities offered have been sold or which deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference in the registration statement and to be part thereof from the date of filing of such documents. (a) The registrant's latest annual report filed pursuant to section 13(a) or 15(d) of the Exchange Act. (b) All other reports filed pursuant to Section 13(a) or 15(d) of the Exchange Act since the end of the fiscal year covered by the registrant document referred to in (a) above. (c) The description of the class of securities contained in a registration statement filed under the Exchange Act, including any amendment or report filed for the purpose of updating such description. Description of Securities Under the Transaction Systems Architects, Inc. Deferred Compensation Plan (the "Plan"), certain management and highly compensated employees of Transaction Systems Architects, Inc. (the "Company") and certain of its subsidiaries may defer a portion of their base salary and variable compensation (including without limitation bonus amounts, management incentive compensation and commissions). Amounts deferred by a participant under the Plan will be credited by book entry to the participant's deferral contribution account. The Plan permits the Company to make discretionary contributions to an employer contribution account maintained for each Plan participant. The value of a participant's accounts will be based on the performance of benchmark investment funds selected by the participant under the Plan for purposes of accounting (as if the deferred compensation had been so invested) and not for actual investment. Since no participant deferrals or discretionary contributions by the Company actually will be invested in any investment fund, participants will not have any ownership interest in any investment fund. A Benefits Committee appointed by the Board of Directors of the Company has the sole discretion to determine the alternative benchmark investment funds available under the Plan as the measurement mechanism to determine the rate of return on amounts deemed invested in accordance with the terms of the Plan. The obligations of the Company under the Plan (the "Obligations") are unsecured general obligations to pay in the future the value of the vested deferred compensation accounts adjusted to reflect the performance of the selected measurement investment funds in accordance with the terms of the Plan. The Obligations will rank without preference with other unsecured and unsubordinated indebtedness of the Company from time to time outstanding and are, therefore, subject to the risks of the Company's insolvency. The Company is not required to fund or otherwise segregate assets to be used for the payment of the Obligations. Notwithstanding the foregoing, the Company may establish a trust to hold assets to be used for payment of Obligations. The assets held by such trust will be subject to the claims of the Company's general creditors. Obligations are generally payable under the Plan upon (i) termination of employment, (ii) death, (iii) a determination by the Benefits Committee that a participant has suffered a financial hardship, (iv) the election of a participant (subject to a 10% withdrawal penalty), and (v) at the election of the participant, January of any year designated by the participant beginning after the third anniversary of a participant's deferral. The Obligations cannot be assigned, alienated, pledged or encumbered. The Obligations are not convertible into any security of the Company. The Company may amend the Plan from time to time, except that no such amendment may reduce the value of a participant's vested account balances to less than the amount (as subsequently adjusted for earnings and losses) he would be entitled to receive if he had resigned on the day of the amendment. Indemnification of Directors and Officers Section 145 of the Delaware General Corporation Law provides for the indemnification of officers and directors, subject to certain limitations. The Certificate of Incorporation of the registrant expressly provides for indemnification of an officer or director made a party or threatened to be made a party to proceedings by reason of the fact that such person was an officer or director. The Certificate of Incorporation also authorizes the registrant to maintain officer and director liability insurance, and such a policy is currently in effect. Exhibits 4.1 Transaction Systems Architects, Inc. Deferred Compensation Plan 4.2 Transaction Systems Architects, Inc. Deferred Compensation Plan Trust Agreement 5 Opinion of Legal Counsel 23 Consent of Arthur Andersen LLP 24 Power of Attorney (contained in signature page) Undertakings (a) The undersigned registrant hereby undertakes: 1. To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement: (i) To include any prospectus required by Section 10(a)(3) of the Act; (ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement. (iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement; Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed by the registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in this registration statement. 2. That, for the purpose of determining any liability under the Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. 3. To remove from registration by means of post-effective amendment any of the securities being registered which remain unsold at the termination of the offering. (b) The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Act, each filing of the registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. (c) Insofar as indemnification for liabilities arising under the Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer, or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue. SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Omaha, State of Nebraska, on November 20, 1998. TRANSACTION SYSTEMS ARCHITECTS, INC. By: /s/ William E. Fisher ------------------------------- William E. Fisher, Chief Executive Officer, President and Director POWER OF ATTORNEY We, the undersigned officers and directors of Transaction Systems Architects, Inc., hereby severally and individually constitute and appoint William E. Fisher, Gregory J. Duman, and Dwight G. Hanson, and each of them, the true and lawful attorneys and agents of each of us to execute in the name, place and stead of each of us (individually and in any capacity stated below) any and all amendments to this Registration Statement on Form S-8, and all instruments necessary or advisable in connection therewith, and to file the same with the Securities and Exchange Commission, each of said attorneys and agents to have power to act with or without the other and to have full power and authority to do and perform in the name and on behalf of each of the undersigned every act whatsoever necessary or advisable to be done in the premises as fully and to all intents and purposes as any of the undersigned might or could do in person, and we hereby ratify and confirm our signatures as they may be signed by our said attorneys and agents and each of them to any and all such amendments and other instruments. Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the date indicated. Name Title Date - ------------------------- ------------------------- -------------------------- /s/ William E. Fisher Chief Executive Officer, November 20, 1998 - ------------------------- President and Director William E. Fisher (Principal Executive Officer) /s/ Gregory J. Duman Chief Financial Officer November 20, 1998 - ------------------------- (Principal Financial Officer) Gregory J. Duman /s/ Dwight G. Hanson Vice President November 20, 1998 - ------------------------- (Principal Accounting Officer) Dwight G. Hanson /s/ David C. Russell Director November 20, 1998 - ------------------------- David C. Russell /s/ Promod Haque Director November 20, 1998 - ------------------------- Promod Haque /s/ Charles E. Noell, III Director November 20, 1998 - ------------------------- Charles E. Noell, III /s/ Jim D. Kever Director November 20, 1998 - ------------------------- Jim D. Kever /s/ Larry G. Fendley Director November 20, 1998 - ------------------------- Larry G. Fendley EXHIBIT INDEX Exhibit No. Description - ----------- ----------- 4.1 Transaction Systems Architects, Inc. Deferred Compensation Plan 4.2 Transaction Systems Architects, Inc. Deferred Compensation Plan Trust Agreement 5 Opinion of Legal Counsel 23 Consent of Arthur Andersen LLP 24 Power of Attorney (contained in signature page)













                      TRANSACTION SYSTEMS ARCHITECTS, INC.

                           DEFERRED COMPENSATION PLAN



                              TABLE OF CONTENTS



ARTICLE 1          INTRODUCTION................................................1

           1.1     Purpose of the Plan, Effective Date.........................1

           1.2     Plan Administrator, Plan Year...............................1

           1.3     The Employers...............................................1

           1.4     Supplements.................................................1

ARTICLE 2          PLAN PARTICIPATION..........................................1

           2.1     Eligibility.................................................1

           2.2     Participation...............................................2

           2.3     Cessation of Active Participation...........................2

ARTICLE 3          PARTICIPANTS' ACCOUNTS; DEFERRALS AND CREDITING.............3

           3.1     Participants' Accounts......................................3

           3.2     Deferral Contributions......................................3

           3.3     Deferral Election...........................................4

           3.4     Discretionary Contributions.................................5

           3.5     Debiting of Distributions and Forfeitures...................5

           3.6     Crediting of Earnings or Losses on Contributions............5

           3.7     Errors in Accounts..........................................6

ARTICLE 4          INVESTMENT FUNDS............................................6

           4.1     Selection by Committee......................................6

           4.2     Participant Direction of Deemed Investments.................6

ARTICLE 5          PAYMENT OF ACCOUNT BALANCES.................................7

           5.1     Benefit Payments Upon Termination of Service for
                   Reasons Other Than Death....................................7

           5.2     Form of Distribution........................................8

           5.3     Death Benefits..............................................9

           5.4     InService Distributions.....................................9

           5.5     Beneficiary Designation....................................11

ARTICLE 6          CLAIMS.....................................................12

           6.1     Initial Claim..............................................12

           6.2     Appeal.....................................................12

           6.3     Satisfaction of Claims.....................................12

ARTICLE 7          NO FUNDING OF PLAN BENEFITS................................12

ARTICLE 8          COMMITTEE..................................................13

           8.1     Committee's Duties.........................................13

           8.2     Action by Plan Administration..............................14

           8.3     Information Required for Plan Administration...............14

           8.4     Decision of Committee Final................................14

           8.5     Interested Committee Member................................14

           8.6     Indemnification............................................15

ARTICLE 9          RELATING TO THE COMPANY....................................15

           9.1     Action by Company..........................................15

ARTICLE 10         AMENDMENT AND TERMINATION..................................15

           10.1    Amendment..................................................15

           10.2    Termination................................................15

           10.3    Distribution on Termination................................16

ARTICLE 11         GENERAL PROVISIONS.........................................16

           11.1    Notices....................................................16

           11.2    Nonalienation of Plan Benefits.............................16

           11.3    Payment with Respect to Incapacitated Persons..............16

           11.4    No Employment or Benefit Guaranty..........................16

           11.5    Litigation.................................................17

           11.6    Headings...................................................17

           11.7    Evidence...................................................17

           11.8    Gender and Number..........................................17

           11.9    Waiver of Notice...........................................17

           11.10   Applicable Law.............................................17

           11.11   Severability...............................................17

           11.12   Withholding for Taxes......................................17

           11.13   Successors.................................................18

           11.14   Effect on Other Employee Benefit Plans.....................18




                                   CERTIFICATE




     I, David P. Stokes,  Secretary of  Transaction  Systems  Architects,  Inc.,
hereby certify that the attached  document is a correct copy of the  Transaction
Systems Architects,  Inc. Deferred  Compensation Plan effective as of January 1,
1999.

     Dated this 20th day of November, 1998.


                                                  /s/ David P. Stokes
                                                  ----------------------
                                                      David P. Stokes

                                                     (Corporate Seal)



                      TRANSACTION SYSTEMS ARCHITECTS, INC.
                           DEFERRED COMPENSATION PLAN


                                    Article 1
                                  Introduction

         1.1      Purpose  of  the  Plan,   Effective   Date.  The   Transaction
Systems  Architects,  Inc.  Deferred  Compensation  Plan (the  "Plan")  has been
established by Transaction Systems Architects,  Inc. (the "Company"),  effective
as of  January  1,  1999  (the  "Effective  Date"),  with  respect  to  Eligible
Employees  (as  defined in Section  2.1).  The purpose of the Plan is to provide
certain  Eligible  Employees with an opportunity to defer the receipt and income
taxation  of a  portion  of such  employees'  annual  compensation.  The Plan is
intended  to be a plan that is unfunded  and that is  maintained  primarily  for
the purpose of providing  deferred  compensation to a select group of management
or highly compensated employees.

         1.2      Plan  Administrator,  Plan Year. The Plan is  administered  by
the  Compensation  Committee of the Board of Directors  of  Transaction  Systems
Architects,  Inc. (the  "Committee").  The Plan is  administered on the basis of
a Plan Year which is the calendar  year.  Article 8 describes  certain  specific
powers,  duties  and  responsibilities  of the  Committee  with  respect  to the
administration of the Plan.

         1.3      The   Employers.   The  Company  and  its   Subsidiaries   are
referred  to herein  collectively  as the  "Employers"  and  individually  as an
"Employer".  A "Subsidiary"  means any  corporation  more than 50 percent of the
voting stock of which is directly or indirectly owned by the Company.

         1.4      Supplements.  From time to time  supplements  may by amendment
be  attached  to and form a part of this Plan.  Such  supplements  may modify or
supplement  the  provisions  of the Plan as they apply to  particular  groups of
Eligible  Employees  (as defined in Section 2.1) or groups of  Participants  (as
defined in Section 2.2),  shall specify the person affected by such  supplements
and shall  supersede the other  provisions  of the Plan to the extent  necessary
to eliminate  inconsistencies  between the Plan provisions and the provisions of
such supplements.

                                       Article 2.
                                   Plan Participation.

         2.1      Eligibility.  Each  employee  of an Employer  shall  become an
Eligible  Employee as of the date he is notified  by the  Committee  that he has
been  selected by the  Committee to become an Eligible  Employee.  The Committee
shall consider such factors as it, in its sole discretion,  considers  pertinent
in selecting  Eligible  Employees.  "Eligible  Employee"  means, for a Plan Year
or portion of a Plan Year, an individual:

                   (a)     who is an employee of an  Employer,  exclusive of any
employee who provides  services to an Employer  under a contract or  arrangement
with  either  the  individual  or with an agency or  leasing  organization  that
treats the  individual  as either an  individual  contractor  or an  employee of
such  agency  or  leasing  organization,   even  if  such  individual  is  later
determined  to have been a common law  employee of the  Employer  rather than an
independent contractor or an employee of such agency or leasing organization;

                   (b)     who is a member of a select  group of  management  or
highly compensated employees; and

                   (c)     either  (i) who,  for such Plan Year,  has  satisfied
such  minimum  compensation  or other  classification  requirements  established
from time to time by the  Committee,  or (ii) who otherwise is designated by the
Committee,  in its sole  discretion,  as eligible to elect to participate in the
Plan.

          2.2     Participation.  Each Eligible  Employee may irrevocably  elect
to have  Deferral  Contributions  made on his behalf for a Plan Year, or portion
of  a  Plan  Year,   pursuant  to  Section   3.2  and  thereby   become  a  Plan
Participant.  "Participant"  means any  individual who has been admitted to, and
has not been removed  from,  participation  in the Plan pursuant to this Article
2. A  Participant  must  complete  such forms and provide  such data in a timely
manner  as is  required  by the  Committee.  Such  forms  and data may  include,
without  limitation,  his acceptance of the terms and conditions of the Plan and
his  designation  of  a  beneficiary  to  receive  any  death  benefits  payable
hereunder.

         2.3      Cessation of Active Participation.

                   (a)     Cessation of Eligible  Status.  A  Participant  shall
be   considered   an  active   Participant   during  any  period  when  Deferral
Contributions  are  being  made  to the  Plan  on his  behalf.  A  Participant's
active  participation  in the Plan  shall  cease  as of the date his  employment
with  all  Employers  terminates.  In  addition,  the  Committee  may  remove  a
Participant  from  active  participation  in the Plan if, as of any day during a
Plan  Year,  he  ceases  to  satisfy  the  criteria  which  qualified  him as an
Eligible Employee.  Upon cessation of, or removal from, active  participation in
the Plan, a Participant's deferrals under the Plan shall cease.

                   (b)     Inactive  Participant  Status.  Even  if  his  active
participation   in  the  Plan  ends,  an  employee   shall  remain  an  inactive
Participant  in the Plan until the  earlier  of (i) the date the full  amount of
his vested Plan  Accounts  (as defined in Section 3.1) is  distributed  from the
Plan, or (ii) the date he again  recommences  active  participation  in the Plan
as an Eligible Employee by electing to have Deferral  Contributions  made to the
Plan on his behalf  pursuant to Section  3.2.  During the period of time that an
employee  is an  inactive  Participant  in the  Plan,  his Plan  Accounts  shall
continue  to be  credited  with  earnings  and losses  pursuant  to the terms of
Section  3.6,  and he shall  continue  to be  eligible  to direct  the manner in
which his Accounts shall be deemed invested pursuant to Section 4.2.

                   (c)     Participation  after  Reemployment.  If  an  Eligible
Employee  terminates  employment  with all Employers  (either before or after he
becomes a  Participant)  and then is reemployed by an Employer,  he shall become
eligible to  participate or to recommence  his  participation  in the Plan as of
the  date,  on or  after  his  reemployment  date,  that he is  notified  by the
Committee that he has been  reselected by the Committee as an Eligible  Employee
and that he may  elect to have  Deferral  Contributions  made to the Plan on his
behalf pursuant to Section 3.2.

                  (d)      Application  of  ERISA.  It  is  the  intent  of  the
Company  that the Plan be exempt  from Parts 2, 3, and 4 of  Subtitle B of Title
I  of  the  Employee   Retirement  Income  Security  Act  of  1974,  as  amended
("ERISA"),  as an unfunded plan that is maintained by the Company  primarily for
the  purpose  of  providing   deferred   compensation  for  a  select  group  of
management   or  highly   compensated   employees   (the   "ERISA   exemption").
Notwithstanding  anything  to the  contrary  in this  Article  2 or in any other
provision of the Plan,  the  Committee  may in its sole  discretion  exclude any
one  or  more  Eligible  Employees  from  eligibility  to  participate  or  from
participation   in  the  Plan,  may  exclude  any  Participant   from  continued
participation  in the  Plan,  and may  take  any  further  action  it  considers
necessary or  appropriate if the Committee  reasonably  determines in good faith
that such  exclusion  or further  action is  necessary  in order for the Plan to
qualify for, or to continue to qualify for, the ERISA exemption.

                                       Article 3.
                     Participants' Accounts; Deferrals and Crediting

         3.1      Participants'  Accounts.  The  Committee  shall  establish and
maintain  on behalf  of each  Participant  the  following  separate  bookkeeping
accounts (an "Account") under the Plan:

                  (i)      Deferral   Contribution   Account.  Each  Participant
         shall have a "Deferral  Contribution  Account" maintained on his behalf
         under the Plan.  With respect to any  Participant,  this Account  shall
         represent  the  amount of his  Deferral  Contributions  (as  defined in
         Section 3.2) and earnings or losses attributable thereto.

                  (ii)     Employer   Contribution   Account.  Each  Participant
         shall  have  an  "Employer  Contribution  Account"  maintained  on  his
         behalf under the Plan.  With respect to any  Participant,  this Account
         shall  represent  the  amount of his  Discretionary  Contributions  (as
         defined in Section  3.4),  if any, and earnings or losses  attributable
         thereto.

         The  Committee,  in its  discretion,  may also  establish  and maintain
such additional  separate  bookkeeping  accounts for the Participant as it shall
deem desirable.  Each  Participant  shall at all times have a 100 percent vested
interest  in  his  Deferral   Contribution   Account.  A  Participant's   vested
interest  in his  Employer  Contribution  Account  shall  be  determined  by the
Committee,  in its sole discretion,  based on the vesting schedule  specified by
the Company  with  respect to each  Discretionary  Contribution  credited to the
Participant's  Employer  Contribution  Account.  Each  Account of a  Participant
shall be  maintained  until  the value  thereof  has been  distributed  to or on
behalf of such Participant or his beneficiary.

         3.2      Deferral  Contributions.   Each  Participant  may  irrevocably
elect to have  Deferral  Contributions  made on his  behalf  for a Plan  Year by
completing  and  submitting  to the  Committee  (or  its  designee)  a  Deferral
Election (as defined in Section 3.3)  setting  forth the terms of his  election.
The Deferral  Contribution  made by a Participant  with respect to any Plan Year
must be at least $5,000,  or such Deferral  Contribution,  adjusted for earnings
or  losses  thereon  in  accordance  with  Section  3.6,  will be  automatically
distributed  to the  Participant  on or before  the last day of such Plan  Year.
Notwithstanding  the  preceding  sentence,  if an  Eligible  Employee  who first
becomes an Eligible  Employee  after the first day of a Plan Year elects to make
a Deferral  Contribution  with respect to such Plan Year,  the minimum  required
Deferral  Contribution for such  Participant  shall be an amount equal to $5,000
multiplied  by a fraction,  the  numerator of which is the number of full months
remaining  in such Plan Year after the Deferral  Election is  effective  and the
denominator  of which is twelve.  A "Deferral  Contribution"  means that portion
of a Participant's  Base Salary and Variable  Compensation  that the Participant
elects to defer receipt of, in lieu of receiving  such  compensation  currently.
"Base Salary" means the  Participant's  annual base salary from his Employer for
the Plan  Year paid or  payable  in a regular  salary  paycheck  while an active
Participant  in  the  Plan.  "Variable  Compensation"  means  the  Participant's
variable  compensation,  if any, from his Employer for the Plan Year,  including
but not  limited to,  bonus  amounts,  management  incentive  compensation,  and
sales  commissions,  paid  or  payable  in  a  quarterly  variable  compensation
paycheck  while an active  Participant  in the Plan. A Participant  may elect to
defer,  through pay reduction each payroll period,  no less than one percent nor
more  than 50  percent,  in  whole  percentages,  of his  Base  Salary  for such
payroll  period and may elect to defer,  through  pay  reduction  each  calendar
quarter,  no  less  than  one  percent  nor  more  than  75  percent,  in  whole
percentages,  of his Variable  Compensation for such calendar quarter.  Deferral
Contributions  may only be made while the  Participant  is actively  employed by
the  Employer.  For  purposes  of the Plan,  a  Participant  will be  considered
actively   employed  during  a  period  of  paid  leave  of  absence  or  salary
continuation.  A Participant will not be considered  actively  employed during a
period  of  unpaid  leave  of  absence.   Notwithstanding   the   foregoing,   a
Participant's Deferral  Contributions shall be reduced by the Committee,  in its
sole  discretion,  to the extent  necessary  to  provide  the  Participant  with
sufficient  Base Salary and Variable  Compensation to satisfy his employment tax
deductions, wage withholding and any other payroll deductions.

         3.3      Deferral  Election.  A Participant  must complete and submit a
written  Deferral  Election to the Committee  providing for the reduction of his
Base Salary and Variable  Compensation  for the  appropriate  amount of Deferral
Contributions.  The  following  terms and  conditions  shall  apply to  Deferral
Elections:

                   (a)     Initial Deferral  Election.  The Eligible  Employee's
initial  Deferral  Election  under the Plan with  respect to his Base Salary for
any Plan Year shall be effective for the first regular  salary  paycheck  earned
after  the  date  the  Deferral   Election  becomes   effective.   The  Eligible
Employee's  initial  Deferral  Election  under  the  Plan  with  respect  to his
Variable  Compensation,  if any,  for any Plan Year shall be  effective  for the
first  quarterly  Variable  Compensation  paycheck  earned  after  the  date the
Deferral  Election  becomes  effective.  To be effective,  the initial  Deferral
Election  under the Plan with  respect to Base  Salary  must be made  within the
time period  prescribed  by the  Committee  (generally,  before the first day of
the Plan Year for  which  Deferral  Contributions  attributable  to Base  Salary
will be made or, if later  during such Plan Year,  within 30 days after the date
on which the Eligible  Employee first becomes an Eligible  Employee  pursuant to
Section 2.1).  To be effective,  the initial  Deferral  Election  under the Plan
with  respect to  Variable  Compensation,  if any,  must be made within the time
period  prescribed  by the  Committee  (generally,  before  the first day of the
Plan Year for which the  Variable  Compensation  to be  deferred  will be earned
or, if later  during such Plan Year,  within 30 days after the date on which the
Eligible  Employee  first  becomes  an  Eligible  Employee  pursuant  to Section
2.1).  Until such time as an  Eligible  Employee  submits  an  initial  Deferral
Election  in a timely  manner,  he shall be deemed to have  elected  not to make
Deferral  Contributions  and to have elected not to become a Participant  in the
Plan.

                  (b)      Subsequent   Deferral   Election.   A   Participant's
subsequent  Deferral  Election with respect to his Base Salary for any Plan Year
must be made  before  the first  day of the Plan Year for which the Base  Salary
to be deferred is payable.  A Participant's  subsequent  Deferral  Election with
respect to his  Variable  Compensation,  if any,  for any Plan Year must be made
before  the first day of the Plan Year for which the  Variable  Compensation  to
be deferred is earned.

                  (c)      Term.  Each  Participant's  Deferral  Election  shall
remain in effect for the Base Salary and Variable  Compensation,  if any, earned
during a Plan Year until the earlier of (i) the date the  Participant  ceases to
be an  active  Participant,  or (ii)  the  automatic  revocation  of a  Deferral
Election   pursuant  to  Section   5.4(a)  or  5.4(b).   If  a  Participant   is
transferred  from the  employment  of one Employer to the  employment of another
Employer,  his Deferral  Election with the first  Employer will remain in effect
and will apply to his Base Salary and Variable  Compensation,  if any,  from the
second  Employer  until the earlier of those  events set forth in the  preceding
sentence.

                  (d)      Crediting  Contributions.  For each  Plan Year that a
Participant  has a Deferral  Election in effect,  the Committee shall credit the
amount  of  such   Participant's   Deferral   Contributions   to  his   Deferral
Contribution  Account  on the day such  amount  would  have been paid to him but
for his Deferral  Election (or such other date or time as the Committee,  in its
sole discretion, determines from time-to-time).

         3.4      Discretionary  Contributions.  As of the last  business day of
each  Plan  Year  (or  such  other  date or time as the  Committee,  in its sole
discretion,  determines  from  time-to-time),  the  Committee  shall  credit any
Discretionary  Contributions  made with  respect  to an active  Participant  for
such   Plan  Year  to  such   Participant's   Employer   Contribution   Account.
"Discretionary  Contribution"  means a discretionary  amount  contributed to the
Plan  by the  Company  with  respect  to an  active  Participant  who is  making
Deferral  Contributions  for  such  Plan  Year.  The  Company  may,  but  is not
obligated to, make a Discretionary  Contribution  for a Plan Year for any one or
more active  Participants,  which  Discretionary  Contributions may be different
amounts  or  different   percentages  of  compensation   for  each  such  active
Participant and which  Discretionary  Contributions will vest in accordance with
the  vesting   schedule   specified  by  the  Company  on  the  date  each  such
Discretionary Contribution is made.

         3.5      Debiting  of  Distributions   and  Forfeitures.   As  of  each
business  day, the  Committee  shall debit each  Participant's  Accounts for any
amount  distributed  or  forfeited  from such  Accounts  since  the  immediately
preceding business day.

         3.6      Crediting  of  Earnings  or  Losses  on  Contributions.  As of
each  business day, the Committee  shall credit to each  Participant's  Accounts
the amount of earnings  or losses  applicable  thereto for the period  since the
immediately  preceding  business  day. To effect such  crediting of earnings and
losses,  the  Committee  shall,  as of each  business  day,  first  subtract all
distributions  since the  immediately  preceding  business day from the Account,
add to the  Account  the  amount  of the  contributions,  and  allocate  the net
earnings  or  losses  to the  Participant's  Account  based  on  the  individual
account  activity  of  the  Account  during  such  period  pursuant  to a  share
accounting  method  under  which  each  Participant's  deemed  investment  in an
Investment  Fund (as defined in Section  4.1) shall be  accounted  for in deemed
shares in funds  selected  by the  Committee  and  offered  within  the Plan for
purposes of  calculating  earnings and losses for  Participants'  Accounts.  For
this purpose,  the Committee  shall adopt uniform rules which conform  generally
to accepted accounting practices.

         3.7      Errors in  Accounts.  If an error or  omission  is  discovered
in the Account of a  Participant,  in the amount of a  Participant's  deferrals,
or in the amount of Discretionary  Contributions  credited to the  Participant's
Account,  the  Committee,  in its  sole  discretion,  shall  cause  appropriate,
equitable  adjustments  to be  made  as  soon  as  administratively  practicable
following the discovery of such error or omission.

                                   Article 4
                                Investment Funds

                   4.1     Selection  by  Committee.  From  time  to  time,  the
Committee shall select two or more  investment  funds (the  "Investment  Funds")
for purposes of  determining  the rate of return on amounts  deemed  invested in
accordance  with the terms of the Plan. The Committee  will notify  Participants
in writing  prior to the  beginning of each Plan Year and at such other times as
the Committee  deems  necessary or desirable of the Investment  Funds  available
under the Plan for such Plan  Year.  The  Committee  may  change,  add or remove
Investment  Funds on a prospective  basis at any time and in any manner it deems
appropriate.

         4.2      Participant    Direction   of   Deemed    Investments.    Each
Participant  generally  may  direct the  manner in which his  Accounts  shall be
deemed  invested in and among the Investment  Funds;  provided,  such investment
directions shall be made in accordance with the following terms:

                  (a)      Nature of  Participant  Direction.  The  selection of
Investment  Funds by a Participant  shall be for the sole purpose of determining
the rate of return to be credited to his  Accounts,  and shall not be treated or
interpreted  in any manner  whatsoever as a requirement or direction to actually
invest assets in any Investment Fund or any other  investment  media.  The Plan,
as an unfunded,  nonqualified  deferred compensation plan, at no time shall have
any  actual   investment  of  assets   relative  to  the  benefits  or  Accounts
hereunder.

                  (b)      Investment  of  Contributions.  Except  as  otherwise
provided  in  this  Section  4.2,  each   Participant  may  make  an  investment
election,  made in such form as the Committee may direct or permit,  prescribing
the  percentage  of his future  contributions  that will be deemed  invested  in
each Investment Fund. An initial  investment  election of a Participant shall be
made as of the date the Participant  commences or recommences  participation  in
the Plan and shall apply to all  contributions  credited  to such  Participant's
Accounts  after such  date.  Such  Participant  may make  subsequent  investment
elections  at such  times as  permitted  by the  Committee,  and such  elections
shall apply to all such specified  contributions  credited to such Participant's
Accounts  after the effective date of such  election.  Any  investment  election
timely and  properly  made  pursuant to this  subsection  with respect to future
contributions   shall  remain   effective  until  changed  by  the  Participant.
Notwithstanding   anything  to  the  contrary  in  this   subsection   (b),  the
Participant  may  make  a  separate  investment  election  with  respect  to the
contributions credited to his Accounts for each and every Plan Year.

                  (c)      Investment  of  Existing   Account   Balances.   Each
Participant  may  make an  investment  election,  effective  as of the  date the
Participant  commences or recommences  participation in the Plan,  prescribing a
different  percentage  of his  existing  Account  balances  that  will be deemed
invested  in  each  Investment   Fund.  Such  Participant  may  make  subsequent
investment  elections at such times as permitted by the Committee  prescribing a
different  percentage  of his  existing  Account  balances  that  will be deemed
invested  in each  Investment  Fund.  Each such  election  which is  timely  and
properly  made  shall  remain  in  effect  until  changed  by such  Participant.
Notwithstanding   anything  to  the  contrary  in  this   subsection   (c),  the
Participant  may  make a  separate  investment  election  with  respect  to that
portion of his  existing  Account  balances  attributable  to the  contributions
credited to his Accounts for each and every Plan Year.

                  (d)      Committee   Discretion.   The  Committee  shall  have
complete  discretion  to adopt and revise  procedures  to be  followed in making
such  investment  elections.  Such  procedures may include,  but are not limited
to,  the  process  of  making  elections,  the  permitted  frequency  of  making
elections,   the  incremental  size  of  elections,   the  deadline  for  making
elections and the effective date of such  elections.  Any procedures  adopted by
the Committee that are inconsistent  with the deadlines or procedures  specified
in this  Section  4.2  shall  supersede  such  provisions  of this  Section  4.2
without the necessity of a Plan amendment.

                                   Article 5
                          Payment of Account Balances

          5.1     Benefit  Payments  Upon  Termination  of Service  for Reasons 
Other Than Death.

                  (a)      General.    In   accordance   with   the   terms   of
subsection  (b)  hereof,  if  a  Participant's  employment  with  the  Employers
terminates for any reason other than death, he (or his  beneficiary,  if he dies
after such  termination  of  employment  but before  distribution  of his vested
Accounts)  shall be entitled to receive a  distribution  of the total of (i) the
entire  vested  amount  credited to his  Accounts,  as adjusted  for earnings or
losses  attributable  thereto,  determined  as of the last  business  day of the
calendar  quarter in which his employment  with the Employers  terminates;  plus
(ii) the   amount   of   Deferral   Contributions   and   vested   Discretionary
Contributions,  if any,  made  since  such  business  day;  and minus  (iii) the
amount of any distributions made to the Participant since such business day.

                  (b)      Timing  of  Distribution.  The  distribution  of  the
vested  benefit  payable to a  Participant  under this Section  shall be made or
commence as soon as  reasonably  practicable  after the last business day of the
calendar  quarter  in which  the  Participant's  employment  with the  Employers
terminates for any reason other than death.

         5.2      Form of Distribution.

                            (a)     Lump Sum  Payment.  Except  as  provided  in
subsection  (b)  hereof,  the  vested  benefit  payable to a  Participant  under
Section 5.1 shall be distributed in the form of a lump sum payment.

                  (b)      Quarterly  Installments.  A  Participant  may  elect,
in writing,  at the time he makes his  Deferral  Election,  or at any later time
that is at  least  one year  before  his  retirement  date,  to have any  vested
benefit  payable  under Section 5.1 on account of the  Participant's  retirement
on or after  attainment  of age 50 and  accumulation  of 60 Points (as described
below) paid in the form of quarterly  installments  over a five,  ten or fifteen
year period;  provided,  if the  Participant's  vested Account balances are less
than $60,000 on his  employment  termination  date,  his entire  vested  Account
balances  shall  be paid in the  form  of a lump  sum  payment  as  provided  in
Section  5.2(a)  hereof.  In the event a  Participant  elects to have any vested
benefit  payable under  Section 5.1 paid in the form of quarterly  installments,
such  Participant may elect,  in writing,  at any time that is at least one year
before his  retirement  date,  to have his vested  benefit paid in the form of a
lump  sum  payment.  In the  event  a  Participant  elects  to have  any  vested
benefit  payable  under  Section  5.1 on account of his  retirement  on or after
attainment  of age 50 and  accumulation  of 60 Points paid in the form of a lump
sum payment,  such  Participant  may elect,  in writing,  at any time that is at
least one year before his  retirement  date, to have his vested  benefit paid in
the form of annual  installments  over a five,  ten or fifteen  year  period.  A
Participant  shall be  credited  with one Point for each  whole  year of his age
and  for  each  whole  year  of  his  service  as an  employee  of an  Employer,
commencing  with his date of hire by an  Employer  and  ending  with the date he
terminates  employment  with all of the  Employers.  The  Committee  shall  have
complete  discretion  to adopt and revise  rules for  determining  Participants'
years of service for purposes of the preceding sentence.

                  (i)      The  installment  payments  shall be made in
         quarterly   installments  (adjusted  for  earnings  or  losses
         between  payments in accordance with Section 3.6),  commencing
         as soon as  reasonably  practicable  after  the last  business
         day  of  the  calendar   quarter  in  which  the   Participant
         terminated   employment,   and  continuing   each   successive
         calendar quarter thereafter.

                  (ii)     If a  Participant  dies after payment of his
         vested  Account  balances from the Plan has begun,  but before
         his entire  vested  Account  balances  have been  distributed,
         the  remaining  amount of his vested  Account  balances  shall
         continue to be  distributed to the  Participant's  beneficiary
         on  the  same   scheduled   payment   dates   and   using  the
         installment   method   of   distribution    elected   by   the
         Participant.

                  (iii)    Notwithstanding     anything     in     this
         subsection  (b) to the contrary,  if the  Participant  elected
         at least one year before his  employment  termination  date to
         have any vested  benefit  payable  under  Section  5.1 paid in
         the form of quarterly  installments and the Committee,  in its
         sole   discretion,    determines   the   Participant   has   a
         "Disability"  at  the  time  his  employment  terminates,  his
         entire  vested   Accounts   shall  be  paid  in  the  form  of
         quarterly   installment   payments   as  so   elected  by  the
         Participant.  "Disability"  shall  have  the same  meaning  as
         when  used  in  the  TSA  401(k)  Plan.  The  decision  of the
         Committee as to Disability shall be final and binding.

         5.3      Death  Benefits.  If  a  Participant's   employment  with  the
Employers  terminates  due  to  his  death,  the  Participant  shall  have a 100
percent  vested  interest in his Employer  Contribution  Account,  if any.  Such
Participant's  beneficiary  shall be entitled to receive a lump sum distribution
of the total of (i) the entire amount credited to such  Participant's  Accounts,
as adjusted for earnings or losses  attributable  thereto,  determined as of the
last business day of the calendar  quarter in which the  Participant  died; plus
(ii) the amount of Deferral  Contributions and Discretionary  Contributions made
since  such   business  day,  if  any;  and  minus   (iii) the   amount  of  any
distributions  made to or on  behalf  of the  Participant  since  such  business
day.  If such  Participant  was an  active  Participant  on the day  immediately
prior to his death  (that is,  Deferral  Contributions  were  being  made to the
Plan on behalf of the Participant  for the Plan Year of his death),  such active
Participant's  beneficiary  shall also receive a lump sum  pre-retirement  death
benefit  equal to $100,000.  The benefits  payable  under this Section 5.3 shall
be distributed to such beneficiary as soon as reasonably  practicable  after the
last business day of the calendar quarter in which the Participant died.

         5.4      In-Service Distributions.

                  (a)      Hardship  Distributions.  Upon  receipt  of a written
application  for  an  in-service  hardship   distribution  and  the  Committee's
decision,  made in its  sole  discretion,  that a  Participant  has  suffered  a
"Financial   Hardship",   the  Participant  shall  be  entitled  to  receive  an
in-service   distribution   from  his  vested   Account   balances.   "Financial
Hardship" shall mean a severe  financial  hardship to the Participant  resulting
from a sudden and  unexpected  illness or  accident  of the  Participant  or the
Participant's  dependent (as defined in Section  152(a) of the Internal  Revenue
Code of 1986, as amended (the "Code")),  loss of the Participant's  property due
to casualty,  or other similar  extraordinary  and  unforeseeable  circumstances
arising  as  a  result  of  events  beyond  the  control  of  the   Participant.
Financial  Hardship  shall be  determined  by the  Committee on the basis of the
facts  of each  case,  including  information  supplied  by the  Participant  in
accordance  with  uniform  guidelines  prescribed  from  time  to  time  by  the
Committee;  provided,  the  Participant  will be deemed not to have a  Financial
Hardship  to the extent that such  hardship  is or may be  relieved  (i) through
reimbursement  or  compensation  by insurance or otherwise;  (ii) by liquidation
of the  Participant's  assets, to the extent the liquidation of assets would not
itself  cause  severe  financial  hardship;  or (iii) by  cessation of deferrals
under the Plan.  Examples of what are not  considered to be Financial  Hardships
include  the need to send a  Participant's  child to  college  or the  desire to
purchase  a home.  Such  distribution  shall  be paid in a lump sum  payment  as
soon  as  reasonably   practicable  after  the  Committee  determines  that  the
Participant  has  incurred  a  Financial  Hardship.  The amount of such lump sum
payment shall not exceed the total of (i) the entire  vested amount  credited to
the  Participant's  Accounts,  as adjusted for  earnings or losses  attributable
thereto,  determined  as of the  business  day on  which  such  distribution  is
processed;   plus  (ii)  the  amount  of  Deferral   Contributions   and  vested
Discretionary  Contributions  made since such  business  day, if any;  and minus
(iii)  the  amount  of any  distributions  made to the  Participant  since  such
business  day;  and,  the  amount  of such  lump sum  payment  shall be  further
limited to the amount that the Committee  determines is reasonably  necessary to
meet the  Participant's  requirements  resulting  from the  Financial  Hardship.
For purposes of this  subsection,  the "business day on which such  distribution
is  processed"  refers to the  business  day  established  for such  purpose  by
administrative  practice,  even if actual payment is made at a later date due to
delays in  valuation,  administration  or any  other  procedure.  The  amount of
such distribution  shall reduce the  Participant's  Account balances as provided
in  Section   3.5.  A   Participant   who   receives  an   in-service   hardship
distribution  shall not be eligible  to make  Deferral  Contributions  under the
Plan or be credited with any  Discretionary  Contributions  for the remainder of
the Plan  Year in which  such  distribution  is made and for the next  following
Plan Year, and such Participant's  current Deferral  Election,  if any, shall be
automatically   revoked.  When  such  Participant  is  again  eligible  to  make
Deferral  Contributions,  such  Participant may resume active  participation  in
the Plan by making a new Deferral  Election and satisfying any other  procedures
for participation under Section 2.2.

                  (b)      Distributions  with Forfeiture.  Notwithstanding  any
other  provision of this Article 5 to the contrary,  a Participant may elect, in
writing,  at any time prior to the  complete  distribution  of his  vested  Plan
Accounts,  to  receive a  distribution  of 90  percent  of the total of  (i) the
entire  vested  amount  credited to his  Accounts,  as adjusted  for earnings or
losses  attributable  thereto,  determined  as of the last  business  day of the
month preceding the date of his distribution  election;  plus (ii) the amount of
Deferral  Contributions and vested  Discretionary  Contributions made since such
business day, if any; and minus (iii) the  amount of any  distributions  made to
the  Participant  since such business day.  Such  distribution  shall be made as
soon  as   reasonably   practicable   after   the  date  of  the   Participant's
distribution   election  under  this   subsection  (b).  As  of  the  date  such
distribution  is made,  an amount  equal to ten  percent  of such  Participant's
total Account  balances  determined as of the business day immediately  prior to
the date such  distribution is made, both vested and nonvested  portions,  shall
be permanently  and irrevocably  forfeited,  and such  Participant  shall not be
eligible to make  Deferral  Contributions  under the Plan or to be credited with
any  Discretionary  Contributions  for the  remainder  of the Plan Year in which
such  distribution  is made  and for the  next  following  Plan  Year,  and such
Participant's   current  Deferral  Election,  if  any,  shall  be  automatically
revoked.   When  such   Participant   is  again   eligible   to  make   Deferral
Contributions,  such Participant may resume active  participation in the Plan by
making  a  new  Deferral  Election  and  satisfying  any  other  procedures  for
participation  under  Section  2.2.  The  amount  of the  distribution  and  the
amount  of  the   forfeiture   under  this   subsection  (b)  shall  reduce  the
Participant's Account balances as provided in Section 3.5.

                  (c)      Specified          In-Service          Distributions.
Notwithstanding  any  other  provision  of this  Article  5 to the  contrary,  a
Participant  may  elect  on his  Deferral  Election  to  receive  an  in-service
distribution  of the  aggregate  Deferral  Contributions  made  pursuant to such
Deferral Election,  as adjusted for earnings or losses attributable  thereto and
reduced  for  any  distributions  thereof  under  subsection  (a) or (b)  above,
determined  as  of  the  December  31   immediately   preceding  the  date  such
distribution  is made.  Such  distribution  shall be made in a lump sum  payment
in  January  of the Plan Year  designated  by the  Participant  on his  Deferral
Election  provided  that such Plan Year begins  after the third  anniversary  of
the date the Deferral  Contribution  to be  distributed  would have been paid to
the   Participant   but  for  his   Deferral   Election.   The  amount  of  such
distribution  shall  reduce  the  Participant's  Deferral  Contribution  Account
balance as provided in Section  3.5. Any portion of the  Participant's  Deferral
Contribution  Account which is not  distributed  under this subsection (c) shall
be distributed in accordance  with Section 5.1 or 5.3,  whichever is applicable,
and shall  remain  available  for  distributions  under this Section 5.4. If the
Participant's  employment with the Employers  terminates for any reason prior to
the  payment  of  his   in-service   distribution   hereunder,   his  in-service
distribution   election   shall  be   cancelled   and  of  no  effect   and  the
Participant's  Deferral  Contribution Account shall be distributed in accordance
with Section 5.1 or 5.3,  whichever is  applicable.  In the event a  Participant
elects to receive an in-service  distribution  under this  subsection  (c), such
Participant  may  elect,  in  writing,  at any time  that is at  least  one year
before  the first day of the  January  that the  in-service  distribution  would
otherwise  be paid,  to defer such  in-service  distribution  to any  succeeding
January.

                  (d)      Deductible  Limit.  Notwithstanding  anything  in the
Plan to the contrary,  the  distribution  of a Participant's  benefit  hereunder
shall be limited to an amount  that would not cause the  Participant  to receive
compensation  that the Committee  determines  would not be deductible under Code
Section  162(m).   Any  amount  that  is  not  distributed  to  the  Participant
pursuant to the preceding  sentence shall be distributed to the Participant,  as
adjusted  for earnings or losses  attributable  thereto,  as soon as  reasonably
practicable  after the  Committee  determines  that such  distribution  would be
permissible under the terms and conditions of the preceding sentence.

         5.5      Beneficiary  Designation.  Participants  shall  designate  and
from time to time may  redesignate  their  beneficiaries  to  receive  any death
benefits  that may be payable  under the Plan upon such  Participant's  death in
such  form  and  manner  as  the  Committee  may  determine.  In the  case  of a
Participant  who is legally  married on the date of his death,  his  beneficiary
shall be his  surviving  spouse unless such spouse  validly  consents in writing
to a different  beneficiary  designation or the  Participant  establishes to the
satisfaction  of the  Committee  that the  consent  cannot be  obtained  because
there  is no  spouse,  the  spouse  cannot  be found  or some  other  reasonable
excuse.  In the event that:

                  (i)      a  Participant  dies without  designating  a
         beneficiary;

                  (ii)     the    beneficiary     designated    by    a
         Participant  is not  alive  when a  payment  is to be  made to
         such  person  under the Plan,  and no  contingent  beneficiary
         has been designated; or

                  (iii)    the    beneficiary     designated    by    a
         Participant  cannot be  located  by the  Committee  within one
         year from the date benefits are to be paid to such person;

then, in any of such events,  the beneficiary of such  Participant  with respect
to any benefits that remain  payable  under the Plan shall be the  Participant's
surviving spouse, if any, and if not, the estate of the Participant.

                                   Article 6
                                     Claims

         6.1      Initial  Claim.  Claims  for  benefits  under  the Plan may be
filed with the  Committee on forms or in such other  written  documents,  as the
Committee may  prescribe.  The Committee  shall furnish to the claimant  written
notice  of the  disposition  of a claim  within 90 days  after  the  application
therefor  is  filed.  In the  event  the  claim is  denied,  the  notice  of the
disposition  of the claim  shall  provide the  specific  reasons for the denial,
citations of the pertinent  provisions of the Plan, and, where  appropriate,  an
explanation  as to how the  claimant  can  perfect the claim or submit the claim
for review.

         6.2      Appeal.  Any  Participant or  beneficiary  who has been denied
a benefit  shall be  entitled,  upon  request  to the  Committee,  to appeal the
denial of his claim.  The claimant (or his duly authorized  representative)  may
review  pertinent   documents  related  to  the  Plan  and  in  the  Committee's
possession  in order to prepare  the appeal.  The  request for review,  together
with a written  statement  of the  claimant's  position,  must be filed with the
Committee  no later than 60 days after  receipt of the written  notification  of
denial of a claim  provided for in Section 6.1. The  Committee's  decision shall
be made  within 60 days  following  the filing of the  request  for  review.  If
unfavorable,  the notice of the  decision  shall  explain the reasons for denial
and indicate the  provisions  of the Plan or other  documents  used to arrive at
the decision.

         6.3      Satisfaction  of  Claims.  Any  payment  to a  Participant  or
beneficiary  shall to the extent thereof be in full  satisfaction  of all claims
hereunder  against the  Committee  and the  Company,  either of whom may require
such  Participant or beneficiary,  as a condition to such payment,  to execute a
receipt  and  release  therefor  in such  form as  shall  be  determined  by the
Committee  or  the  Company.   If  receipt  and  release  is  required  but  the
Participant or  beneficiary  (as  applicable)  does not provide such receipt and
release  in  a  timely  enough  manner  to  permit  a  timely   distribution  in
accordance with the general timing of  distribution  provisions in the Plan, the
payment of any affected  distribution  may be delayed until the Committee or the
Company receives a proper receipt and release.

                                   Article 7
                          No Funding of Plan Benefits

         The Company may  establish a trust (known as a "grantor  trust"  within
the  meaning of the Code) for the purpose of  accumulating  funds to satisfy the
obligations  incurred  by  the  Company  under  the  Plan.  Notwithstanding  the
preceding  sentence,  nothing  herein shall  require the Company to segregate or
set aside any funds or other  property  for the  purpose of paying any  benefits
under the Plan.  Nothing  contained in this Plan,  and no action taken  pursuant
to its  provisions  by  the  Company  or  the  Committee  shall  create,  nor be
construed  to create,  a trust of any kind or a fiduciary  relationship  between
the  Company  and  the  Participant,  his  beneficiary,  or  any  other  person.
Benefits  hereunder  shall be paid from  assets  which shall  continue,  for all
purposes,  to be a part of the  general,  unrestricted  assets  of the  Company.
The  obligation  of the Company  hereunder  shall be an unfunded  and  unsecured
promise to pay money in the future.  To the extent that the  Participant  or his
beneficiary  is  entitled  to  receive  payments  from  the  Company  under  the
provisions  hereof,  such  right  shall  be no  greater  than  the  right of any
unsecured  general  creditor  of the  Company;  no such  person  shall  have nor
acquire any legal or  equitable  right,  interest or claim in or to any property
or assets of the  Company.  It is  intended  that the Plan be  unfunded  for tax
purposes and for purposes of Title I of ERISA.

                                   Article 8
                                   Committee

         8.1      Committee's    Duties.    The    Committee    is   the    plan
administrator.  Except as  otherwise  specifically  provided  and in addition to
the powers,  rights and duties  specifically given to the Committee elsewhere in
the Plan, the Committee shall have the following  discretionary  powers,  rights
and duties:

                  (a)      To construe  and  interpret  the Plan,  to decide all
questions  of Plan  eligibility,  to  determine  the amount,  manner and time of
payment  of  any   benefits   under  the  Plan,   and  to  remedy   ambiguities,
inconsistencies or omissions in its sole and complete discretion.

                  (b)      To  adopt   such  rules  of   procedure   as  may  be
necessary for the  efficient  administration  of the Plan and as are  consistent
with the Plan,  and to enforce  the Plan in  accordance  with its terms and such
rules.

                  (c)      To  make  determinations  as  to  the  right  of  any
person to a benefit,  to afford any person  dissatisfied with such determination
the right to a hearing  thereon,  and to direct  payments  or  distributions  in
accordance with the provisions of the Plan.

                  (d)      To furnish  the Company  and  Participants  with such
information  as may be required by them for tax or other  purposes in connection
with the Plan.

                  (e)      To enroll  Participants  in the Plan,  distribute and
receive Plan  administration  forms and comply with all applicable  governmental
reporting and disclosure requirements.

                  (f)      To employ agents, attorneys,  accountants,  actuaries
or other persons (who also may be employed by an  Employer),  and to allocate or
delegate  to them such  powers,  rights  and duties as the  Committee  considers
necessary  or advisable to properly  carry out the  administration  of the Plan,
provided  that any such  allocation  or delegation  and the  acceptance  thereof
must be in writing.

                  (g)      To  report  at  least   annually   to  the  Board  of
Directors  of  the  Company  or to  such  person  or  persons  as the  Board  of
Directors of the Company  designates as to the  administration  of the Plan, any
significant   problems   which   have   developed   in   connection   with   the
administration  of the Plan and any  recommendations  which  the  Committee  may
have  as  to  the   amendment   of  the  Plan  or  the   modification   of  Plan
administration.  At least once for each Plan Year,  the Committee  shall cause a
written  statement of a Participant's  Account balances to be distributed to the
Participant.

         8.2      Action  by Plan  Administration.  During a period in which two
or more  Committee  members  are  acting,  any action by the  Committee  will be
subject to the following provisions:

                  (a)      The  Committee  may  act  by  meeting   (including  a
meeting  from  different  locations  by  telephone  conference)  or by  document
signed  without  meeting,  and  documents  may be  signed  through  the use of a
single document or concurrent  documents;  provided,  action shall be taken only
upon the vote or other  affirmative  expression  of a majority of the  Committee
members qualified to vote with respect to such action.

                  (b)      A Committee  member by writing may  delegate  part or
all of his  rights,  powers,  duties  and  discretion  to  any  other  Committee
member, with such other Committee member's consent.

                  (c)      No  member  of  the  Committee  shall  be  liable  or
responsible  for an act or  omission  of other  Committee  members  in which the
former has not concurred.

                  (d)      The  Committee  shall  choose a  secretary  who shall
keep  minutes of the  Committee's  proceedings  and all  records  and  documents
pertaining  to the  administration  of the Plan.  The  secretary may execute any
certificate or other written direction on behalf of the Committee.

         8.3      Information  Required for Plan  Administration.  The Employers
shall  furnish the  Committee  with such data and  information  as the Committee
considers  necessary  or  desirable  to perform its duties with  respect to Plan
administration.   The   records  of  an  Employer   as  to  an   employee's   or
Participant's  period or periods of  employment,  termination  of employment and
the  reason  therefor,  leaves of  absence,  reemployment  and base  salary  and
variable  compensation  will be conclusive on all persons  unless  determined to
the  Committee's  satisfaction to be incorrect.  Participants  and other persons
entitled to benefits  under the Plan also shall furnish the Committee  with such
evidence,   data  or  information  as  the  Committee   considers  necessary  or
desirable  for  the  Committee  to  perform  its  duties  with  respect  to Plan
administration.

         8.4      Decision of Committee  Final.  Subject to  applicable  law and
Article 6, any  interpretation  of the  provisions  of the Plan and any decision
on any matter within the  discretion  of the Committee  made by the Committee in
good faith shall be binding on all  persons.  A  misstatement  or other  mistake
of fact shall be corrected  when it becomes known and the  Committee  shall make
such  adjustment  on account  thereof as the Committee  considers  equitable and
practicable.

         8.5      Interested  Committee  Member.  If a member  of the  Committee
is also a  Participant  in the Plan,  he may not decide or determine  any matter
or  question  concerning  his  benefits  unless such  decision or  determination
could be made by him under the Plan if he were not a Committee member.

         8.6      Indemnification.  No person  (including  any present or former
Committee  member,  and any present or former  director,  officer or employee of
the Company)  shall be personally  liable for any act done or omitted to be done
in good  faith  in the  administration  of the  Plan.  Each  present  or  former
director,  officer  or  employee  of the  Company to whom the  Committee  or the
Company has  delegated  any portion of its  responsibilities  under the Plan and
each  present  or  former  Committee  member  shall  be  indemnified  and  saved
harmless by the Company (to the extent not  indemnified  or saved harmless under
any liability  insurance or other  indemnification  arrangement  with respect to
the Plan) from and  against  any and all claims of  liability  to which they are
subjected  by  reason  of any act done or  omitted  to be done in good  faith in
connection  with  the  administration  of  the  Plan,   including  all  expenses
reasonably  incurred  in their  defense if the  Company  fails to  provide  such
defense.  No member of the  Committee  shall be liable  for any act or  omission
of any other member of the  Committee,  nor for any act or omission upon his own
part, excepting his own willful misconduct.

                                        Article 9
                                 Relating to the Company

         9.1      Action by Company.  Any action  required or  permitted  of the
Company  under the Plan shall be by  resolution  of its Board of Directors or by
a duly  authorized  committee  of its  Board of  Directors,  or by a  person  or
persons authorized by resolution of its Board of Directors or such committee.

                                       Article 10
                                Amendment and Termination

         10.1     Amendment.   While  the   Company   expects   and  intends  to
continue  the Plan,  the  Company  must  necessarily  reserve  and  hereby  does
reserve  the right to amend the Plan from  time to time.  Any  amendment  of the
Plan will be by  resolution  of the Board of  Directors  of the  Company  or any
committee  of  the  Board  of  Directors  to  whom  such   authority   has  been
delegated.  Notwithstanding  the  preceding  sentence,  the  Committee may amend
the  Plan in the  following  respects  without  the  approval  of the  Board  of
Directors  of the  Company:  (i)  amendments  required by law;  (ii)  amendments
that  relate  to the  administration  of the  Plan  and  that do not  materially
change the cost of the Plan; and (iii)  amendments  that are designed to resolve
possible  ambiguities,  inconsistencies,  or  omissions  in the Plan and that do
not  materially  increase the cost of the Plan.  No  amendment  shall reduce the
value of a  Participant's  vested  Account  balances to less than the amount (as
subsequently  adjusted for earnings  and losses  attributable  thereto) he would
be  entitled  to  receive  if he had  resigned  from  the  employ  of all of the
Employers on the day of the amendment.

         10.2     Termination.  The Plan  will  terminate  on the first to occur
of the following:

                  (a)      The date it is terminated by the Company.

                  (b)      The  date  the   Company   is   judicially   declared
bankrupt or insolvent.

                  (c)      The    dissolution,    merger,    consolidation    or
reorganization  of the Company,  or the sale of all or substantially  all of its
assets,  except  that in any such event  arrangements  may be made  whereby  the
Plan will be continued by any  successor to the Company or any  purchaser of all
or  substantially  all of its assets  without a  termination  thereof,  in which
case the successor or purchaser  will be  substituted  for the Company under the
Plan.

         10.3     Distribution  on  Termination.  On  termination  of the  Plan,
each  affected  Participant's  Accounts  shall  be  fully  vested  and  shall be
distributed  in a lump sum  payment  as soon as  practicable  after the date the
Plan is  terminated.  The amount of any such  distribution  shall be  determined
as of the business day on which such  distribution  is  processed.  For purposes
of this  Section,  the "business  day on which such  distribution  is processed"
refers to the  business  day  established  for such  purpose  by  administrative
practice,  even if  actual  payment  is made at a later  date due to  delays  in
valuation,  administration or any other procedure.  Such determination  shall be
binding on all Participants and beneficiaries.

                                       Article 11
                                   General Provisions

         11.1     Notices.   Any  notice  or  document   relating  to  the  Plan
required  to be given to or filed with the  Committee  or the  Company  shall be
considered  as given or filed if delivered or mailed by  registered or certified
mail, postage prepaid, to the Committee, in care of the Company.

         11.2     Nonalienation  of Plan  Benefits.  The rights or  interests of
any  Participant or any  Participant's  beneficiaries  to any benefits or future
payments  under the Plan shall not be subject to  attachment or  garnishment  or
other legal process by any creditor of any such  Participant or beneficiary  nor
shall  any  such   Participant  or  beneficiary  have  any  right  to  alienate,
anticipate,  commute,  pledge,  encumber or assign any of the benefits or rights
which he may  expect to receive  under the Plan,  except as may be  required  by
the tax withholding provisions of the Code or a state's income tax act.

         11.3     Payment  with  Respect  to  Incapacitated   Persons.   If  any
person  entitled to benefits  under the Plan is under a legal  disability or, in
the  Committee's  opinion,  is  incapacitated  in any way so as to be  unable to
manage his  financial  affairs,  the  Committee  may direct the  payment of such
benefits to such  person's  legal  representative  or to a relative or friend of
such  person  for  such  person's  benefit,  or the  Committee  may  direct  the
application  of such  benefit for the benefit of such person in any manner which
the  Committee may select that is  consistent  with the Plan.  Any payments made
in  accordance  with the  foregoing  provisions  of this Section 11.3 shall be a
full and complete discharge of any liability for such payments.

         11.4     No   Employment   or   Benefit    Guaranty.    None   of   the
establishment  of the Plan, any modification  thereof,  the creation of any fund
or account,  or the payment of any benefits  shall be construed as giving to any
Participant  or other  person any legal or equitable  right  against the Company
or the Committee  except as provided herein.  Under no  circumstances  shall the
maintenance  of this Plan  constitute  a  contract  of  employment  or shall the
terms of  employment  of any  Participant  be  modified  or in any way  affected
hereby.  Accordingly,  participation  in the Plan will not give any  Participant
a right to be retained in the employ of any Employer.

         11.5     Litigation.  In any action or  proceeding  regarding  any Plan
benefits or the  administration  of the Plan,  employees or former  employees of
the Employers,  their  beneficiaries  and any other persons  claiming to have an
interest  in the Plan shall not be  necessary  parties and shall not be entitled
to  any  notice  of  process.  Any  final  judgment  which  is not  appealed  or
appealable  and which may be entered in any such action or  proceeding  shall be
binding  and  conclusive  on the  parties  hereto and on all  persons  having or
claiming to have any interest in the Plan.  Acceptance of  participation  in the
Plan shall  constitute a release of the Company,  the Committee and their agents
from any and all liability and  obligation not involving  willful  misconduct or
gross neglect.

         11.6     Headings.  The  headings of the various  Articles and Sections
in the  Plan  are  solely  for  convenience  and  shall  not be  relied  upon in
construing  any provisions  hereof.  Any reference to a Section shall refer to a
Section of the Plan unless specified otherwise.

         11.7     Evidence.  Evidence  required  of anyone  under the Plan shall
be  signed,  made or  presented  by the proper  party or  parties  and may be by
certificate,  affidavit,  document or other  information which the person acting
thereon considers pertinent and reliable.

         11.8     Gender  and  Number.   Words  denoting  the  masculine  gender
shall include the feminine and neuter  genders,  the singular  shall include the
plural and the plural  shall  include  the  singular  wherever  required  by the
context.

         11.9     Waiver of Notice.  Any notice  required  under the Plan may be
waived by the person entitled to notice.

         11.10    Applicable  Law.  The Plan shall be  construed  in  accordance
with the laws of the State of Nebraska.

         11.11    Severability.  Whenever  possible,  each provision of the Plan
shall  be  interpreted  in  such  manner  as to be  effective  and  valid  under
applicable  law,  but if any  provision  of the  Plan  is  held  to be  invalid,
illegal or  unenforceable  in any respect  under any  applicable  law or rule in
any  jurisdiction,  such invalidity,  illegality or  unenforceability  shall not
affect  any other  provision  or any other  jurisdiction,  and the Plan shall be
reformed,  construed  and  enforced  in such  jurisdiction  so as to  best  give
effect to the intent of the Company under the Plan.

         11.12    Withholding for Taxes.  Notwithstanding  any other  provisions
of the Plan,  the  Company  may  withhold  from any payment to be made under the
Plan such amount or amounts as may be required for  purposes of  complying  with
the tax  withholding  provisions of the Code,  any state or local income tax act
or any applicable similar laws.

         11.13    Successors.  The Plan is binding on all  persons  entitled  to
benefits  hereunder and their  respective  heirs and legal  representatives,  on
the Committee and its  successor and on the Company and its  successor,  whether
by way of merger, consolidation, purchase or otherwise.

         11.14    Effect on Other Employee  Benefit  Plans.  Any benefit paid or
payable under this Plan shall not be included in a  Participant's  or employee's
compensation  for purposes of  computing  benefits  under any  employee  benefit
plan  maintained  or  contributed  to by an Employer  except as may otherwise be
required under the terms of such employee benefit plan.



                      TRANSACTION SYSTEMS ARCHITECTS, INC.
                        DEFERRED COMPENSATION PLAN TRUST

         This Trust  Agreement made effective this 1st day of January,  1999, by
and  between  Transaction  Systems  Architects,  Inc.  (hereinafter  called  the
"Company") and First American Trust Company  (hereinafter called the "Trustee"),
as Trustee.

                                   WITNESSETH:

         WHEREAS,  Company has adopted the Transaction Systems Architects,  Inc.
Deferred  Compensation Plan (the "Plan"), a nonqualified  deferred  compensation
plan; and

         WHEREAS,  Company has incurred or expects to incur  liability under the
terms of such Plan with respect to the individuals  participating  in such Plan;
and

         WHEREAS,  Company  wishes to establish this trust  (hereinafter  called
the  "Trust")  and to  contribute  to the Trust  assets  which  shall be held as
herein set forth,  subject to the claims of Company's  creditors in the event of
Company's  Insolvency,  as herein defined,  until paid to Plan  participants and
their  beneficiaries  in such manner and at such times as specified in the Plan;
and

         WHEREAS,  it is the  intention  of the  parties  that this Trust  shall
constitute an unfunded  arrangement  and shall not affect the status of the Plan
as  an  unfunded  plan   maintained  for  the  purpose  of  providing   deferred
compensation  for a select group of management or highly  compensated  employees
for  purposes  of Title I of the  Employee  Retirement  Income  Security  Act of
1974; and

         WHEREAS,  it is the intention of Company to make  contributions  to the
Trust to provide  itself  with a source of funds to assist it in the  meeting of
its liabilities under the Plan.

         NOW,  THEREFORE,  the parties do hereby  establish  the Trust and agree
that the Trust shall be comprised, held, and disposed of as follows:

Section 1.         Establishment of Trust.

         (a)       Company  hereby  deposits with Trustee in trust the amount of
$1.00,  which shall become the principal of the Trust to be held,  administered,
and disposed of by Trustee as provided in this Trust Agreement.

         (b)       The Trust hereby  established  is  revocable  by Company;  it
shall become irrevocable upon a Change in Control, as defined in Section 13(d).

         (c)       The  Trust  is  intended  to be a  grantor  trust,  of  which
Company is the grantor,  within the meaning of subpart E, part I,  subchapter J,
chapter 1,  subtitle A of the  Internal  Revenue Code of 1986,  as amended,  and
shall be construed accordingly.

         (d)       The principal of the Trust, and any earnings  thereon,  shall
be held  separate  and apart from other funds of Company,  and,  after the Trust
has become  irrevocable,  shall be used exclusively for the uses and purposes of
Plan   participants   and   general   creditors   as  herein  set  forth.   Plan
participants  and their  beneficiaries  shall have no preferred claim on, or any
beneficial  ownership  interest in, any assets of the Trust.  Any rights created
under the Plan and this  Trust  Agreement  shall be mere  unsecured  contractual
rights of the Plan  participants and their  beneficiaries  against Company.  Any
assets  held by the Trust will be subject  to the  claims of  Company's  general
creditors  under  federal and state law in the event of  Insolvency,  as defined
in Section 3(a) herein.

         (e)       Company,  in its sole  discretion,  may at any time,  or from
time to time, make  additional  deposits of cash or other property in trust with
Trustee to augment the  principal to be held,  administered,  and disposed of by
Trustee  as  provided  in this Trust  Agreement.  Neither  Trustee  nor any Plan
participant  or  beneficiary  shall  have any  right to compel  such  additional
deposits.

         (f)       Within  thirty  days   following  a  Change  in  Control  (as
defined in Section  13(d)),  the Company shall make an irrevocable  contribution
to the Trust in an amount that is  sufficient  to pay the Plan  participants  or
their  beneficiaries  the  benefits  to  which  the Plan  participants  or their
beneficiaries  would be  entitled  pursuant  to the  terms of the Plan as of the
Change in Control.  Within such thirty-day  period,  the Company shall also make
an  irrevocable  contribution  to the Trust in the  amount of $10,000 to fund an
expense reserve for the Trustee.

Section 2.         Payments to Plan Participants and Their Beneficiaries.

         (a)       Company  shall  deliver to Trustee a schedule  (the  "Payment
Schedule")   that  indicates  the  amounts  payable  in  respect  of  each  Plan
participant  (and his or her  beneficiaries),  that  provides a formula or other
instructions  acceptable to Trustee for determining the amounts so payable,  the
form in which such  amount is to be paid (as  provided  for or  available  under
the Plan),  and the time of  commencement  for payment of such  amounts.  Except
as  otherwise  provided  herein,   Trustee  shall  make  payments  to  the  Plan
participants   and  their   beneficiaries   in  accordance   with  such  Payment
Schedule.  At the  direction of Company,  Trustee  shall make  provision for the
reporting  and  withholding  of any  federal,  state or local  taxes that may be
required to be  withheld  with  respect to the  payment of benefits  pursuant to
the terms of the Plan and shall pay amounts  withheld to the appropriate  taxing
authorities.

         (b)       The  entitlement  of  a  Plan   participant  or  his  or  her
beneficiaries  to benefits  under the Plan shall be  determined  by Company,  or
such  party as it  shall  designate  under  the  Plan,  and any  claim  for such
benefits  shall be considered  and reviewed  under the procedures set out in the
Plan.

         (c)       Company  may make  payment of  benefits  directly to the Plan
participants  or their  beneficiaries  as they become due under the terms of the
Plan.  Company  shall  notify  Trustee  of  its  decision  to  make  payment  of
benefits  directly  prior to the time  amounts  are payable to  participants  or
their  beneficiaries.  In  addition,  if the  principal  of the  Trust,  and any
earnings   thereon,   are  not  sufficient  to  make  payments  of  benefits  in
accordance  with the terms of the Plan,  Company  shall make the balance of each
such payment as it falls due.  Trustee  shall  notify  Company  where  principal
and earnings are not sufficient.

Section 3.         Trustee  Responsibility   Regarding  Payments  to  the  Trust
Beneficiary When Company is Insolvent.

         (a)       Trustee   shall   cease   payment   of   benefits   to   Plan
participants  and their  beneficiaries  if Company is  Insolvent.  Company shall
be considered  "Insolvent"  for purposes of this Trust  Agreement if (i) Company
is unable to pay its debts as they become  due, or (ii)  Company is subject to a
pending proceeding as a debtor under the United States Bankruptcy Code.

         (b)       At all  times  during  the  continuance  of  this  Trust,  as
provided in Section 1(d)  hereof,  the  principal  and income of the Trust shall
be subject to claims of general  creditors  of Company  under  federal and state
law as set forth below.

                  (1)       The  Board  of  Directors  and the  Chief  Executive
Officer  of  Company  shall  have the  duty to  inform  Trustee  in  writing  of
Company's  Insolvency.  If a person claiming to be a creditor of Company alleges
in  writing  to  Trustee  that  Company  has  become  Insolvent,  Trustee  shall
promptly   notify   Company  in  writing  of  such   allegation   and,   pending
determination  of  whether  Company  is  Insolvent,  Trustee  shall  discontinue
payment  of  benefits  to Plan  participants  or  their  beneficiaries.  Company
shall  confirm or deny  Insolvency in a writing  delivered to Trustee  within 15
days after  receipt from  Trustee of such  notification.  If Company  denies the
allegation  of  Insolvency  or  fails  to  respond  within  such 15 day  period,
Trustee  shall  thereupon  determine  whether  Company  is  Insolvent.   Company
agrees to reimburse  Trustee for all reasonable fees and  disbursements  paid by
Trustee to accountants,  financial  consultants or other professionals to assist
it in performing its duties pursuant to this Section 3(b)(1).

                  (2)       Unless  Trustee has actual  knowledge  of  Company's
Insolvency,  or has received  notice from  Company or a person  claiming to be a
creditor  alleging  that  Company is  Insolvent,  Trustee  shall have no duty to
inquire  whether  Company is  Insolvent.  Trustee  may, in all  events,  rely on
such evidence  concerning  Company's solvency as may be furnished to Trustee and
that  provides  Trustee  with a  reasonable  basis  for  making a  determination
concerning  Company's  solvency.   Evidence  upon  which  Trustee  may  rely  as
aforesaid  includes  but is not limited to written  notice from any of Company's
Board of Directors,  Chief Executive Officer,  Chief Financial Officer, a Senior
Vice  President  or General  Counsel,  its  current  independent  accountant  or
outside attorney,  or an accountant or outside attorney employed by Trustee,  or
written  notice of the  appointment  of a receiver of any of Company's  property
by any court in the United States.

                  (3)       If at any time Trustee has  determined  that Company
is Insolvent,  Trustee shall discontinue  payments to Plan participants or their
beneficiaries  and  shall  hold the  assets  of the  Trust  for the  benefit  of
Company's  general  creditors.  Nothing in this Trust Agreement shall in any way
diminish  any  rights  of Plan  participants  or their  beneficiaries  to pursue
their  rights as general  creditors  of Company  with  respect to  benefits  due
under the Plan or otherwise.

                  (4)       Trustee  shall  resume the  payment of  benefits  to
Plan  participants or their  beneficiaries  in accordance with Section 2 of this
Trust   Agreement  only  after  Trustee  has  determined  that  Company  is  not
Insolvent (or is no longer Insolvent).

         (c)       Provided  that  there  are  sufficient   assets,  if  Trustee
discontinues  the payment of benefits  from the Trust  pursuant to Section  3(b)
hereof,  and  subsequently  resumes such payments,  the first payment  following
such  discontinuance  shall include the aggregate  amount of all payments due to
Plan  participants  or their  beneficiaries  under the terms of the Plan for the
period of such  discontinuance,  less the aggregate  amount of any payments made
to Plan  participants or their  beneficiaries by Company in lieu of the payments
provided hereunder during any such period of discontinuance.

Section 4.         Payments to Company.

          Except as  provided  in  Section 3 hereof,  after the Trust has become
irrevocable,  Company  shall have no right or power to direct  Trustee to return
to  Company or to divert to others any of the Trust  assets  before all  payment
of  benefits  have  been  made  to Plan  participants  and  their  beneficiaries
pursuant to the terms of the Plan.

Section 5.         Investment Authority.

         (a)       With  respect  to the  Trust  Fund,  Trustee  shall  have the
following  powers and rights,  in addition to those  vested in it  elsewhere  in
this Trust Agreement or by law:

                  (1)       To  invest  the  Trust  Fund in such  bonds,  notes,
debentures,   mortgages,   equipment  trust   certificates,   investment   trust
certificates,  preferred or common stock,  equity  interests in other  entities,
derivatives and futures contracts,  insurance and annuity  contracts,  common or
collective  trust funds,  shares of investment  companies,  shares of open-ended
investment  companies  registered  under the Investment  Company Act of 1940, as
amended,  including  any  such  company  for  which  Trustee,  or  an  affiliate
thereof,  is acting as an investment  advisor,  or in such other property,  real
or personal,  as Trustee may deem  advisable,  with the care,  skill,  prudence,
and  diligence  under the  circumstances  then  prevailing  that a  prudent  man
acting  in a like  capacity  and  familiar  with such  matters  would use in the
conduct of an enterprise of a like character and with like aims; and

                  (2)       To  temporarily  invest  and  reinvest  the funds in
any  marketable  short-  and  medium-term  fixed  income  securities  (including
demand  and  short-term  notes  and those  commonly  known as  "Master  Notes"),
United  States   Treasury  Bills,   other  short-  and  medium-term   government
obligations,   commercial  paper,   other  money  market  instruments  and  part
interests in any one or more of the  foregoing,  or may maintain  cash  balances
consistent with the liquidity needs of the Plan; and

                  (3)       To  invest  and  reinvest  all  or any  part  of the
Trust  Fund  through  the medium of any pooled  investment  fund or group  trust
(which pooled  investment  fund or group trust may be trusteed by Trustee or one
or more  affiliates of Trustee)  which is invested  principally  in the property
of the kind authorized for investment of the Trust Fund; and

                  (4)       To retain,  manage,  improve,  repair,  operate, and
control all  property,  real or  personal,  at any time  comprising  part of the
Trust Fund; and

                  (5)       To manage,  sell,  contract to sell,  grant  options
to purchase,  convey, exchange,  partition, lease for any term (even though such
term  commences  in the future or may extend  beyond the duration of the Trust),
and  otherwise  dispose  of the  Trust  Fund from time to time in such a manner,
for such  consideration,  and upon such terms and conditions as Trustee,  in its
discretion, shall determine; and

                  (6)       Except as  otherwise  provided in Section 5(d) below
or directed  pursuant  to 5(c) below,  to vote any  corporate  stock,  either in
person or by proxy, for any person;  to exercise or sell any stock  subscription
or conversion  right;  to participate in voting trusts;  to consent to, take any
action in  connection  with,  and  receive and retain any  securities  resulting
from any merger,  consolidation,  reorganization,  readjustment of the financial
structure,  liquidation,  sale, lease or other  disposition of the assets of any
corporation  or other  organization  the  securities  of which may  constitute a
portion of the Trust Fund; and

                  (7)       To keep any  property in the name of a nominee  with
or without disclosure of any fiduciary relationship; and

                  (8)       To take any action  with  respect to  conserving  or
realizing  upon the value of any  property in the Trust Fund;  to collect,  pay,
contest,  compromise,  or abandon  demands of or against the Trust Fund;  to pay
any tax,  assessment  or other charge  attributable  to the interest of any Plan
participant; and

                  (9)       To deposit  securities in a security  depository and
permit the  securities  so deposited to be held in the name of the  depository's
nominee,  and to deposit  securities  issued or  guaranteed by the United States
government  or any  agency  or  instrumentality  thereof,  including  securities
evidenced  by book entry  rather  than by  certificate,  with the United  States
Department  of the  Treasury,  a  Federal  Reserve  Bank,  or other  appropriate
custodial  entity,  in the same  account as  Trustee's  own  property,  provided
Trustee's  records  and  accounts  show that such  securities  are assets of the
Trust Fund; and

                  (10)      Generally,   to  do  all   acts,   whether   or  not
expressly  authorized,  which Trustee deems  necessary or desirable,  but acting
at all times according to the principles expressed in Section 8.

         (b)       Trustee  shall place  securities  orders,  settle  securities
trades,  hold  securities in custody,  and conduct  other related  activities on
behalf  of the Trust in such a  fashion  so as to obtain  for the Trust the best
execution  of  each   securities   transaction   and  full   disclosure  of  all
relationships,  including  all  forms  of  compensation  arrangements,  with any
broker or dealer that Trustee may use,  including  any affiliate of Trustee upon
condition  that such  broker or agent  commission  charged by any  affiliate  of
Trustee  shall  not  exceed  that  normally  charged  by such  affiliate  to its
unaffiliated   customers   for  similar   securities   transactions.   Fees  and
commissions  paid to a broker  or  dealer  shall be  reviewed  and  approved  by
Trustee,  prior to using  such  broker or  dealer,  as part of its  exercise  of
care, skill, prudence, and diligence under Section 8(a).

          Trustee is  authorized to disclose  such  information  as is necessary
to  the  operation  and   administration   of  the  Trust  to  such  persons  or
organizations  that Trustee  determines have a legitimate  business  purpose for
obtaining such information.

         (c)       Company  may direct the Trustee in writing to  segregate  all
or any  portion  of the assets of the Trust in a  separate  account or  accounts
and may  appoint  one or more  investment  advisors  or,  prior to a  Change  in
Control,  an  investment   committee   established  by  Company  to  direct  the
investment  and  reinvestment  of  each  such  account  or  accounts.  Any  such
appointment   shall   be  in   writing   and   shall   delineate   the   duties,
responsibilities,  and  liabilities  of the  investment  advisor  or  investment
committee  with  respect  to the  assets of the Trust  under the  control of the
investment  advisor  or  investment  committee.   Any  such  investment  advisor
appointed by Company shall be an  independent  person or entity,  but members of
the   investment   committee   may  be  employees  of  Company  or  any  of  its
affiliates.  Notwithstanding  the  foregoing,  subsequent to a Change in Control
(as  defined  in  Section   13(d)),   (i)  any  appointment  or  termination  of
appointment  of an  investment  advisor by Company  requires  the prior  written
consent of a majority of the Plan  participants;  and (ii) any account  that was
subject to the direction of an  investment  committee  immediately  prior to the
Change in Control  shall be invested  and  reinvested  by Trustee from and after
the Change in  Control,  either as a  separate  investment  account or  combined
with the other assets of the Trust,  in accordance  with Sections 5(a), 5(b) and
5(d)  hereof  unless and until an  investment  advisor is  appointed  by Company
with the prior written consent of a majority of the Plan  participants  for such
account.

          Trustee shall be under no duty to question,  or make  inquiries as to,
any action or direction of any  investment  advisor or  investment  committee as
provided  herein,  or  any  failure  to  give  directions,   or  to  review  the
securities  subject to the  investment  direction of any  investment  advisor or
investment  committee,  or to make any  suggestions to an investment  advisor or
investment  committee  with  respect  to  investment  and  reinvestment  of,  or
disposing of  investments  in, the assets of the Trust subject to the investment
discretion of any  investment  advisor or investment  committee,  unless Trustee
knows  that by such  action  or  failure  to act it will be  participating  in a
breach of fiduciary duty by the investment advisor or investment committee.

          Notwithstanding  the foregoing,  the Trustee,  without obtaining prior
approval  or  direction  from an  investment  advisor or  investment  committee,
shall  invest  cash  balances  held by it from time to time in  short-term  cash
equivalents  and,  furthermore,  shall sell such short-term cash  equivalents as
may be  necessary  to carry out the  instructions  of an  investment  advisor or
investment committee.

          If the appointment of any investment  advisor or investment  committee
with  respect to a separate  account is  terminated  by the Company  without the
appointment  of a successor  thereto,  the  separate  account may continue to be
maintained  as a separate  account or may be combined  with the other  assets of
the Trust in the sole  discretion  of the Trustee  and,  in any event,  shall be
invested and reinvested by the Trustee in accordance  with Sections 5(a),  5(b),
and 5(d) hereof.

         (d)       Trustee may invest in securities  (including  stock or rights
to acquire  stock) or  obligations  issued by Company;  provided  Trustee  first
obtains the prior  written  consent of Company to such  investments  unless such
investment is a de minimis  amount held in common  investment  vehicles in which
Trustee  invests.  Except as  otherwise  provided  in Section  5(c),  all rights
associated  with  assets of the  Trust  shall be  exercised  by  Trustee  or the
person  designated by Trustee,  and shall in no event be  exercisable by or rest
with Plan  participants,  except that voting rights with respect to Trust assets
that are  securities  or  obligations  issued by Company will rest with Company.
Company  shall  have the right,  at any time,  and from time to time in its sole
discretion,  to  substitute  assets of equal  fair  market  value for any assets
held by the Trust.  This  right is  exercisable  by  Company  in a  nonfiduciary
capacity without the approval or consent of any person in a fiduciary capacity.

         (e)       Each  insurance  contract or policy issued shall provide that
Trustee  shall be the owner  thereof  with the  power to  exercise  all  rights,
privileges,  options and elections  granted by or permitted  under such contract
or policy or under the rules of the  insurer.  The  exercise  by  Trustee of any
incidents of ownership  under any  contract or policy  shall,  prior to a Change
in  Control,  be  subject  to the  direction  of  Company.  After  a  Change  in
Control,  Trustee  shall have the right to exercise  any  incidents of ownership
under any contract or policy in its sole discretion.

          Trustee shall have no power to name a  beneficiary  of the contract or
policy  other than the  Trust,  to assign the  contract  or policy (as  distinct
from  conversion of the contract or policy to a different  form) other than to a
successor  Trustee,  or to loan to any  person  the  proceeds  of any  borrowing
against  an  insurance  contract  or  policy  held in the Trust  Fund.  However,
notwithstanding  the  foregoing  provisions  of this  Section  5(e),  prior to a
Change in Control,  Trustee may loan to Company  the  proceeds of any  borrowing
against an insurance policy held as an asset of the Trust.

          No  insurer  shall  be  deemed  to be a  party  to  the  Trust  and an
insurer's  obligations  shall be measured and determined  solely by the terms of
contracts, policies and other agreements executed by the insurer.

Section 6.         Disposition of Income.

          During the term of this Trust,  all income received by the Trust,  net
of expenses and taxes, shall be accumulated and reinvested.

Section 7.         Accounting by Trustee.

          Trustee shall keep accurate and detailed  records of all  investments,
receipts,  disbursements,  and  all  other  transactions  required  to be  made,
including  such  specific  records as shall be agreed  upon in  writing  between
Company and Trustee.  Within 60 days  following  the close of each calendar year
and within 60 days after the removal or  resignation  of Trustee,  Trustee shall
deliver to Company a written account of its  administration  of the Trust during
such year or during  the  period  from the close of the last  preceding  year to
the  date of  such  removal  or  resignation,  setting  forth  all  investments,
receipts, disbursements, and other transactions reported to or effected by it.

Section 8.         Responsibility of Trustee.

         (a)       Trustee  shall  act  with  the  care,  skill,  prudence,  and
diligence under the  circumstances  then prevailing that a prudent person acting
in like  capacity and familiar  with such matters would use in the conduct of an
enterprise  of a like  character  and with like aims,  provided,  however,  that
Trustee  shall incur no liability  to any person for any action  taken  pursuant
to a direction,  request,  or approval  given by Company  which is  contemplated
by, and in conformity  with,  the terms of the Plan or this Trust,  and is given
in  writing  by  Company.  The  claim  of a  Plan  participant  or  his  or  her
beneficiaries  to  benefits  under  the  Plan  shall be  determined  by the Plan
Committee  (as such  term is  defined  in the  Plan)  in its  sole and  absolute
discretion  under the  procedures  set out in the Plan. If necessary the Trustee
may apply to a court of  competent  jurisdiction  to resolve a dispute over such
benefit  claims  or to  resolve  a  dispute  between  the  Company  or the  Plan
Committee  and any party  other than the Trustee  (or its  affiliates),  and the
Company shall  reimburse the Trustee for all the  reasonable  costs and expenses
involved.

         (b)       Trustee  may  consult  with legal  counsel  (who,  prior to a
Change in  Control  (as  defined  in Section  13(d)),  may also be  counsel  for
Company  generally but who,  following a Change in Control,  must be independent
legal counsel) with respect to any of its duties or obligations hereunder.

         (c)       Trustee may hire agents, accountants,  actuaries,  investment
advisors,  financial  consultants,  or  other  professionals  to  assist  it  in
performing any of its duties or obligations hereunder.

         (d)       Trustee shall have, without  exclusion,  all powers conferred
on Trustee by applicable law, unless expressly provided otherwise herein.

         (e)       Notwithstanding  any powers  granted to Trustee  pursuant  to
this Trust  Agreement or to  applicable  law,  Trustee  shall not have any power
which  could  give this  Trust the  objective  of  carrying  on a  business  and
dividing the gains  therefrom,  within the meaning of Section  301.7701-2 of the
Procedure and Administrative  Regulations  promulgated  pursuant to the Internal
Revenue Code.

         (f)       No  Trustee  shall  be  required  to  furnish  bond or  other
security  except as herein  expressly  provided  or except if  required to do so
under applicable federal law.

         (g)       In the event of a  garnishment,  attachment,  levy,  or other
legal  process by a creditor  of Company of any of the assets of the Trust under
circumstances  set out in Section 3(b) hereof  where  Trustee  cannot  ascertain
the  Insolvency of Company,  Trustee may interplead the assets of the Trust into
the court where the creditor has brought such action.

         (h)       To  the   extent   permitted   by  law,   Trustee   shall  be
indemnified  and saved  harmless by Company  from and against any and all claims
of liability,  damages,  penalties,  judgments,  expenses,  including reasonable
attorneys'  fees,  to which it is subjected by reason of any act done or omitted
to be done in good faith in connection  with the Trust or the  investment of the
Trust,  including  all  expenses  reasonably  incurred in its defense if Company
fails to provide  such  defense  (collectively  "Damages");  provided,  however,
Trustee  shall not be  indemnified  and saved  harmless  with respect to Damages
caused  by  Trustee's  willful   misconduct,   negligence,   failure  to  follow
directions  given  in  accordance  with  the  provisions  of  the  Trust  by  an
investment   advisor,   investment   committee,   Company  or  any  person  duly
authorized  by Company  or, if Trustee is  required  by law to act  without  the
receipt  of  such  directions,  by its  failure  to act in the  absence  of such
directions.

Section 9.         Compensation and Expenses of Trustee.

          Company  shall  pay  all   administrative   and  Trustee's   fees  and
expenses,  including  fees for services  provided by persons  appointed or hired
pursuant to  Sections  3(b)(1),  5(c),  8(b) or 8(c).  If not so paid,  the fees
and  expenses  shall be paid from the  Trust.  Notwithstanding  anything  to the
contrary  in this  Section  9,  prior to a Change  in  Control  (as  defined  in
Section  13(d))  neither  Company nor the Trust shall have any obligation to pay
any fee or expense  attributable  to services  rendered by a third party  unless
Company  gave  its  prior  written  approval  of  the  appointment,   hiring  or
retention  of  such  third  party.  Such  prior  written  consent  shall  not be
required following a Change in Control.

Section 10.        Resignation and Removal of Trustee.

         (a)       Prior to a Change in Control (as  defined in Section  13(d)),
Trustee  may resign at any time by written  notice to  Company,  which  shall be
effective  60 days after  receipt of such  notice  unless  Company  and  Trustee
agree  otherwise.  Following a Change in Control,  Trustee may resign only after
the appointment of a successor Trustee.

         (b)       Trustee may be removed by Company on one days  notice  prior
to a Change in  Control.  Subsequent  to a Change in  Control,  Trustee may only
be removed  by  Company  with the  written  consent  of a  majority  of the Plan
participants.

         (c)       Upon  resignation or removal of Trustee and  appointment of a
successor  Trustee,   all  assets  shall  subsequently  be  transferred  to  the
successor  Trustee.  The  transfer  shall  be  completed  within  30 days  after
resignation or removal.

         (d)       If the Trustee  resigns or is removed,  a successor  shall be
appointed by Company,  in  accordance  with Section 11 hereof,  by the effective
date of  resignation  or  removal  under  Sections  10(a) or  10(b).  If no such
appointment  has  been  made,   Trustee  may  apply  to  a  court  of  competent
jurisdiction  for appointment of a successor or for  instructions.  All expenses
of   Trustee   in   connection   with  the   proceeding   shall  be  allowed  as
administrative  expenses of the Trust to the same  extent as though  Trustee had
received the advance written consent of Company to incurring such expenses.

Section 11.        Appointment of Successor.

          If Trustee  resigns or is removed in accordance  with Section 10(a) or
10(b)  hereof,  Company  may  appoint,  subject to Section  10, any third  party
national  banking  association with capital and surplus  exceeding  $100,000,000
as  a  successor  to  replace   Trustee  upon   resignation   or  removal.   The
appointment  shall be  effective  when  accepted  in  writing  by the  successor
Trustee.  The  successor  Trustee shall have all of the rights and powers of the
former  Trustee,  including  ownership  rights in the Trust  assets.  The former
Trustee  shall  execute any  instrument  necessary  or  reasonably  requested by
Company or the successor Trustee to evidence the transfer.

Section 12.        Amendment or Termination.

         (a)       This Trust  Agreement may be amended by a written  instrument
executed  by  Trustee  and  Company.  Notwithstanding  the  foregoing,  no  such
amendment  shall  conflict  with the  terms of the Plan or shall  make the Trust
revocable  after it has become  irrevocable  in  accordance  with  Section  1(b)
hereof.

         (b)       The Trust  shall not  terminate  until the date on which Plan
participants  and  their  beneficiaries  are  no  longer  entitled  to  benefits
pursuant  to the terms of the Plan  unless  sooner  revoked in  accordance  with
Section 1(b) hereof.  Upon  termination  of the Trust,  any assets  remaining in
the Trust shall be returned to Company.

         (c)       Notwithstanding  the  foregoing,  subsequent  to a Change  in
Control  (as  defined  in  Section  13(d)),  this  Trust  Agreement  may only be
amended or terminated  by Company with the written  consent of a majority of the
Plan participants.

Section 13.        Miscellaneous.

         (a)       Any  provisions  of this Trust  Agreement  prohibited  by law
shall  be   ineffective  to  the  extent  of  any  such   prohibition,   without
invalidating the remaining provisions hereof.

         (b)       Benefits    payable   to   Plan    participants   and   their
beneficiaries  under  this  Trust  Agreement  may not be  anticipated,  assigned
(either at law or in equity),  alienated,  pledged,  encumbered, or subjected to
attachment, levy, execution, or other legal or equitable process.

         (c)       This Trust  Agreement  shall be governed by and  construed in
accordance with laws of the State of Nebraska.

         (d)       For  purposes  of this  Trust  Agreement,  Change in  Control
shall mean the purchase or other  acquisition by any person,  entity or group of
persons,  within  the  meaning  of  section  13(d) or  14(d)  of the  Securities
Exchange  Act of 1934  ("Act")  , or any  comparable  successor  provisions,  of
beneficial  ownership  (within the meaning of Rule 13d-3  promulgated  under the
Act) of 30 percent or more of either the  outstanding  shares of common stock or
the combined  voting  power of  Company's  then  outstanding  voting  securities
entitled to vote  generally,  or the approval by the  stockholders of Company of
a  reorganization,  merger,  or  consolidation,  in each case,  with  respect to
which  persons  who  were  stockholders  of  Company  immediately  prior to such
reorganization,  merger or consolidation  do not,  immediately  thereafter,  own
more than 50 percent of the  combined  voting power  entitled to vote  generally
in  the  election  of  directors  of the  reorganized,  merged  or  consolidated
Company's  then  outstanding  securities,  or of a liquidation or dissolution of
Company or of the sale of all or substantially all of Company's assets.

         (e)       Until further  notice from either party  hereto,  any notices
delivered  pursuant to this Trust Agreement and all other  communications  shall
be in writing  and shall be  delivered,  sent or  transmitted  to the persons at
the  addresses  and  facsimile  numbers  set forth  hereunder.  All  notices and
other  communications  shall be effective  when  received.  The party seeking to
rely on notice having been given under this paragraph  shall be responsible  for
ascertaining its receipt.

          For Company:

                    Transaction Systems Architects, Inc.
                    224 S. 108th Avenue
                    Omaha, NE 68154
                    Attn.: Judith L. Miller
                    Facsimile No.  402-390-8077
 
          For Trustee:

                    First American Trust Company
                    2100 Fifth Avenue
                    San Diego, CA 92101

                    Box 34666
                    San Diego, CA 92163-4666
                    Attn.: Denise C. Mehus
                    Facsimile No.  619-615-4966

         (f)       This Trust  Agreement  between  Company and Trustee  contains
the entire  understanding  between  the  parties  with  respect  to its  subject
matter and, as of the  effective  date of this Trust  Agreement,  it  supersedes
and entirely  replaces any and all prior agreements  between Company and Trustee
with respect to the subject matter of this Trust Agreement.

         (g)       This Trust  Agreement  shall be binding upon and inure to the
benefit  of the  parties  hereof and their  heirs,  successors,  and  assignees.
This  Trust  Agreement  is not  assignable  by any  party  without  the  express
written consent of the other party.

         (h)       Titles  and  captions  used  in  this  Trust   Agreement  are
included for  convenience  of reference only and in no way define or delimit any
provisions or otherwise alter the construction or effect.

         (i)       Where the  context  permits,  words in the  masculine  gender
shall include the feminine and neuter  genders,  the singular  shall include the
plural, and the plural shall include the singular.

         (j)       Each  of  the   parties  to  this  Trust   Agreement   hereby
represents  and warrants  that it is duly  authorized  and empowered to execute,
deliver, and perform this Trust Agreement.

         (k)       This  Trust  Agreement  may  be  executed  in any  number  of
counterparts,  each  of  which  shall  be  deemed  to be an  original,  but  all
counterparts shall, together, constitute only one agreement.

Section 14.        Effective Date.

         The effective date of this Trust Agreement shall be the 1st day of
January, 1999.


         IN WITNESS WHEREOF, this Trust Agreement is executed as of the day
and year first above written.

                                    TRANSACTION SYSTEMS ARCHITECTS, INC.

ATTEST BY: /s/ Judith L. Miller     By:   /s/ Dwight G. Hanson
                                         --------------------------------    
                                    Name:     Dwight G. Hanson

                                    Title:    Chief Financial Officer
                                              (Principal Financial Officer)


                                    FIRST AMERICAN TRUST COMPANY
                                    as Trustee

ATTEST BY: /s/ Patricia Schmitt     By    /s/ Denise Mehus
                                         --------------------------------    
                                    Name:     Denise Mehus

                                    Title:    Vice President


                              Erickson & Sederstrom
                           A Professional Corporation

                               Regency Westpointe
                     10330 Regency Parkway Drive, Suite 100
                           Omaha, Nebraska 68114-3761
                                November 20, 1998



Board of Directors
Transaction Systems Architects, Inc.
224 South 108th Avenue
Omaha, Nebraska  68154

Re:  Transaction Systems Architects, Inc. (the "Company")

Gentlemen:

     We refer to the registration,  on a Registration Statement on Form S-8 (the
"Registration  Statement")  under the  Securities  Act of 1933,  as amended,  of
$30,000,000 of deferred  compensation  obligations  (the  "Obligations")  of the
Company under the Company's  Deferred  Compensation  Plan (the "Plan").  We have
reviewed the Plan, the Deferred Compensation Plan Trust, the charter and by-laws
of the Company,  corporate proceedings of the Board of Directors relating to the
Plan, and such other  documents,  corporate  records and questions of laws as we
have deemed necessary to the rendering of the opinions expressed below.

     Based upon the foregoing, we are of the opinion that the Obligations,  when
issued in accordance  with the provisions of the Plan, will be valid and binding
obligations of the Company,  enforceable in accordance with their terms,  except
as may be  limited  by the  effect of  bankruptcy,  insolvency,  reorganization,
moratorium,  and similar  laws  affecting  the rights and  remedies of creditors
generally,  by the effect of general  principles of equity (whether in an action
at law or a  proceeding  in  equity),  or by the  effect of the laws of usury or
other laws or equitable  principles  relating to or limiting  the interest  rate
payable on indebtedness.

     We express on  opinion  as to the laws of any  jurisdiction  other than the
laws of the State of Nebraska.

     We hereby  consent  to the  filing  of this  opinion  as a  exhibit  to the
Registration Statement.

                                             Very truly yours,

                                             Samuel E. Clark


                   Consent of Independent Public Accountants

     As independent public  accountants,  we hereby consent to the incorporation
by  reference  in this Form S-8  Registration  Statement  of our  reports  dated
October 30, 1997,  included in  Transaction  Systems  Architects,  Inc.'s Annual
Report on Form 10-K for the fiscal  year  ended  September  30,  1997 and to all
references to our Firm included in this Registration Statement.

                                                             Arthur Andersen LLP

Omaha, Nebraska,
   November 20, 1998