SPSS INC
8-K, 1997-10-15
PREPACKAGED SOFTWARE
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549


                                    FORM 8-K


                             Current Report Pursuant
                          to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934



Date of report (Date of earliest event reported)          September 30, 1997
                                                     ---------------------------

                                    SPSS Inc.
             (Exact Name of Registrant as Specified in Its Charter)

          Delaware                      33-64732                36-2815480
(State or Other Jurisdiction          (Commission             (I.R.S. Employer
      of Incorporation)                File Number)          Identification No.)

    444 N. Michigan Ave, Chicago, Illinois                        60611
   (Address of Principal Executive Offices)                     (Zip Code)

                                 (312) 329-2400
              (Registrant's Telephone Number, Including Area Code)

                                 Not Applicable
          (Former Name or Former Address, if Changed Since Last Report)



<PAGE>


Item 2:  Acquisition or Disposition of Assets

         On September 30, 1997, SPSS Inc. ("SPSS" or the "Registrant")  acquired
approximately  97% of the  outstanding  shares  of  capital  stock  of  Quantime
Limited,  a corporation  incorporated  under the laws of England with Registered
Number 1400578  ("Quantime"),  from certain  shareholders and warrant holders of
Quantime (the "Shareholders"), for 863,084 shares of SPSS common stock, $.01 par
value per share (the "Common Stock"),  valued at approximately  $25 million (the
"Purchase  Price").  The  stock  acquisition,  accounted  for  as a  pooling  of
interests, occurred pursuant to two Stock Purchase Agreements, one between SPSS,
certain insiders of Quantime (the "Quantime  Insiders") and certain Shareholders
in the United  Kingdom and another  between  SPSS,  the  Quantime  Insiders  and
certain Shareholders  outside the United Kingdom (the "Agreements"),  each dated
September 30, 1997.  Quantime is a  privately-held  developer of market research
software products.  SPSS will continue to operate the Quantime business from the
Quantime offices in London, England.

         The  Purchase  Price of 863,084  shares of SPSS  stock was  established
through negotiations between SPSS and Quantime.

         Other  than  the  transactions  included  in,  or  contemplated  by the
Agreements,  there  are no  material  relationships  between  Quantime  and  the
Registrant  or the  Registrant's  affiliates,  or any director or officer of the
Registrant, or any associate of any such director or officer.

         The  foregoing  description  of the  acquisition  is  qualified  in its
entirety by reference to the Agreements filed as Exhibits 2.1 and 2.2 hereto and
incorporated by this reference.

                                      - 2 -

<PAGE>



Item 7:  Financial Statements, Pro Forma Financial Information and Exhibits

         (a) Not applicable.

         (b) Not applicable.

         (c) The following Exhibits to this Form 8-K are attached hereto:

Exhibit
Number         Description of Document

2.1            Stock Purchase  Agreement among the Registrant,  Edward Ross,
               Richard  Kottler,  Norman  Grunbaum,  Louis  Davidson and certain
               U.K.-  Connected  Shareholders  or warrant  holders  of  Quantime
               Limited named therein,  dated as of September 30, 1997,  together
               with  a  list  briefly   identifying   the  contents  of  omitted
               schedules.

2.2            Stock  Purchase  Agreement  among the  Registrant,  Edward  Ross,
               Richard Kottler, Norman Grunbaum, Louis Davidson and certain Non-
               U.K.  Shareholders or warrant  holders of Quantime  Limited named
               therein,  dated as of September  30, 1997,  together  with a list
               briefly identifying the contents of omitted schedules.

4.1            Bylaws of SPSS

99.1           Press  Release  of  SPSS,  issued  October  1,  1997,  announcing
               acquisition of Quantime by SPSS.


The Registrant  agrees to furnish  supplementally a copy of any omitted schedule
to the Agreements to the Securities and Exchange Commission upon request.


                                      - 3 -

<PAGE>



                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                            SPSS Inc.





Date: October 15, 1997                      By:    /s/ Robert Brinkmann
                                               ------------------------
                                                Robert Brinkmann
                                                Controller


                                      - 4 -


                            STOCK PURCHASE AGREEMENT

                                  By and Among

                                   SPSS INC.,

                  EDWARD ROSS, RICHARD KOTTLER, NORMAN GRUNBAUM
                               and LOUIS DAVIDSON
                                       and
              CERTAIN U.K.-CONNECTED SHAREHOLDERS OR WARRANTHOLDERS
                               OF QUANTIME LIMITED
                      LISTED ON THE SIGNATURE PAGES HEREOF

                         Dated as of September 30, 1997









<PAGE>



                            STOCK PURCHASE AGREEMENT


         STOCK  PURCHASE  AGREEMENT,  dated  as  of  September  30,  1997,  (the
"Agreement"), by and among SPSS INC., a Delaware corporation ("SPSS") and EDWARD
ROSS,  RICHARD  KOTTLER,  NORMAN  GRUNBAUM,  LOUIS DAVIDSON and the shareholders
and/or warrantholders of Quantime Limited, a corporation  incorporated under the
laws of England  with  Registered  Number  1400578  ("Quantime"),  listed on the
signature pages of this Agreement (Edward Ross, Richard Kottler, Norman Grunbaum
and  Louis  Davidson  are  hereinafter  collectively  referred  to herein as the
"Quantime  Insiders";  the Quantime  Insiders,  together  with all  shareholders
and/or  warrantholders  of  Quantime  listed on the  signature  pages  under the
heading  "Quantime  Shareholders"  at the end of the Agreement  are  hereinafter
collectively   referred  to  herein  as  the  "Quantime   Shareholders"  or  the
"Shareholders").

                              W I T N E S S E T H:

         WHEREAS,  Quantime  is  engaged  in  the  business  of  developing  and
distributing  market research  software  encapsulating  strong data  collection,
tabulation, on-screen analysis and EIS capabilities;

         WHEREAS,  the respective  Boards of Directors of each of Quantime,  and
SPSS  have  determined  that  it is  advisable  and  for the  benefit  of  their
corporations and their respective shareholders that Quantime be acquired by SPSS
by means of the  acquisition  from the Quantime  Shareholders of the outstanding
capital  shares of  Quantime,  comprised of Class "A" 1 pence  ordinary  shares,
Class  "B" 1 pence  ordinary  shares  and  Class  "C"  US$0.01  ordinary  shares
(collectively, the "Shares") including those represented by bearer warrants (the
"Warrants") held by the Quantime  Shareholders,  all as set forth in Section 5.3
hereto,  in exchange for shares of common stock $.01 par value per share of SPSS
(the "Common Stock"), pursuant to the terms and conditions set forth herein (the
"Acquisition");

         WHEREAS,  the Shareholders  own of record and beneficially  31.2902% of
the issued and outstanding Shares and all rights to acquire such Shares pursuant
to the Warrants;

         WHEREAS, for United States federal income tax purposes,  it is intended
that this  transaction  qualify  as a  reorganization  under the  provisions  of
Section  368(a)(1)(B)  of the  Internal  Revenue  Code of 1986,  as amended (the
"Code"), and that for United Kingdom taxation purposes, the transaction likewise
qualify as a reorganization (or the United Kingdom equivalent thereof) under the
provisions of applicable tax laws of the United Kingdom; and

         WHEREAS,  for United States  accounting  purposes,  it is intended that
this transaction be accounted for as a "pooling of interests".

         NOW, THEREFORE,  in consideration of the premises, the mutual covenants
and agreements contained herein, and other good and valuable consideration,  the
receipt and  sufficiency of which is hereby  acknowledged,  and in reliance upon
the representations and warranties contained herein, the parties hereto agree as
follows:


<PAGE>




                                    ARTICLE I

                           TERMS OF PURCHASE AND SALE

         1.1  Purchase  and  Sale  of  the  Shares.  Subject  to the  terms  and
conditions  contained in this  Agreement,  on the Closing  Date (as  hereinafter
defined),  the Shareholders shall sell, assign,  transfer and deliver the Shares
owned by the Quantime  Shareholders  to SPSS, and SPSS shall purchase the Shares
owned by the  Quantime  Shareholders  from the  Shareholders,  for an  aggregate
purchase  price  consisting  of the items and  amounts  set forth in Section 1.3
hereof (the "Purchase  Price") payable pursuant to the terms provided in Section
1.3 hereof. The Shareholders hereby represent, warrant and covenant that (a) the
Shareholders  own and have  good  title  to the  Shares  owned  by the  Quantime
Shareholders,   free  and  clear  of  any  lien,  pledge,  claim,   encumbrance,
restriction  or right of any third party of any kind;  (b) at the Closing,  SPSS
will acquire good title to the Shares  owned by the  Quantime  Shareholders  and
thereby  indirectly the Subsidiary  Shares  (hereinafter  defined in Section 5.3
hereof), respectively, free and clear as aforesaid, including without limitation
any of the foregoing set forth in the Memorandum of Association of Quantime; and
(c) the Shares  owned by the  Quantime  Shareholders  represent  the only equity
interest of the Shareholders in Quantime.  Each of the  Shareholders  waives any
rights of  pre-emption  and  rights of first  refusal  in  relation  to sales or
transfers of the Shares owned by the Quantime  Shareholders,  whether  under the
Articles of Association of Quantime or otherwise.

         1.2 Closing. Subject to the terms and conditions of this Agreement, the
closing of the transactions contemplated hereby (the "Closing") shall take place
at the offices of Ross & Hardies,  Chicago,  Illinois,  by 11:59  p.m.,  Central
Daylight Time, on September 30, 1997 (the "Closing Date") or such other place or
time as the parties may agree.

         1.3 Payment of Purchase Price.  Upon  satisfaction of all the terms and
conditions set forth in this  Agreement,  on the Closing Date SPSS shall deliver
the Purchase Price consisting of 278,878 shares of SPSS Common Stock (the "Total
Shares" or "Acquisition Stock") to be paid as follows (a) the Shareholders shall
receive an  aggregate  of 250,991  shares of SPSS Common  Stock to be  allocated
between the  Shareholders  as set forth in Schedule  1.3 hereof,  and (b) 27,887
shares of SPSS Common Stock (the  "Escrowed  Shares") shall be held in escrow in
accordance with Article III hereof.  Only whole shares of SPSS Common Stock will
be issued in connection with the Acquisition. In lieu of fractional shares, each
Shareholder  otherwise  entitled to a fractional share of SPSS Common Stock will
be paid in cash an amount equal to the amount of such fraction multiplied by the
closing price of SPSS Common Stock on the Closing Date. No such shareholder will
be entitled to  dividends,  voting rights or other rights in respect of any such
fractional share.

         1.4  Tax  and  Accounting.  The  parties  hereto  shall  each  use  all
reasonable  efforts  to cause  the  transactions  contemplated  hereunder  to be
treated as (i) a  reorganization  within the meaning of Section  368(a)(1)(B) of
the  Code,  and  (ii) to  qualify  for  accounting  treatment  as a  pooling  of
interests, subject in all events to the provisions of Sections 6.10 and 11.5.

                                      - 2 -

<PAGE>





                                   ARTICLE II

                          SHAREHOLDERS' REPRESENTATIVE


         2.1 Designation of Shareholders' Representative. In order to administer
efficiently   (i)  the   implementation   of  the   Agreement  by  the  Quantime
Shareholders, other than the Quantime Insiders, (ii) the waiver of any condition
to the obligations of the Quantime  Shareholders to consummate the  transactions
contemplated  hereby,  and (iii) the  settlement  of any dispute with respect to
this Agreement,  the Quantime  Shareholders  hereby designate Richard Kottler as
their representative (the "Shareholders' Representative").

         2.2  Authorization  of  Shareholders'   Representative.   The  Quantime
Shareholders  hereby authorize the Shareholders'  Representative (i) to take all
action  necessary in connection  with the  implementation  of this  Agreement on
behalf  of  the  Quantime  Shareholders,  the  waiver  of any  condition  to the
obligations  of  the  Quantime   Shareholders  to  consummate  the  transactions
contemplated hereby, or the settlement of any dispute,  (ii) to give and receive
all notices required to be given under this Agreement, and (iii) to take any and
all  additional  action  as is  contemplated  to be taken by or on behalf of the
Quantime Shareholders by the terms of this Agreement.

         2.3 Replacement of Shareholders' Representative.  In the event (i) that
the Shareholders'  Representative dies, becomes legally incapacitated or resigns
from such position,  or (ii) upon a written consent executed by at least 66-2/3%
in  interest  (calculated  based on the  allocation  set forth in  Schedule  1.3
hereof,  notwithstanding  any subsequent change in shareholdings by way of sale,
etc.) of the Quantime  Shareholders,  the Quantime  Shareholders may designate a
replacement  to the  Shareholders'  Representative;  however,  no  change in the
Shareholders'  Representative  shall be  effective  until SPSS is given  written
notice of it by the Quantime Shareholders.

         2.4  Decisions  of  Shareholders'  Representative.  All  decisions  and
actions by the  Shareholders'  Representative  shall be binding  upon all of the
Quantime  Shareholders,  and no  Quantime  Shareholder  shall  have the right to
object, dissent, protest or otherwise contest the same, in the absence of fraud,
gross negligence of willful misconduct of the Shareholders' Representative.

         2.5  Agreements  Regarding  Shareholders'  Representative.  By  their
execution of this Agreement, the Quantime Shareholders agree that:

                         (i)  SPSS  shall  be able to rely  conclusively  on the
         instructions and decisions of the  Shareholders'  Representative  as to
         any  actions  required  or  permitted  to  be  taken  by  the  Quantime
         Shareholders  or the  Shareholders'  Representative  hereunder,  and no
         party  hereunder  shall have any cause of action  against  SPSS for any
         action taken

                                      - 3 -

<PAGE>



         by  SPSS  in  reliance  upon  the  instructions  or  decisions  of  the
         Shareholders' Representative;

                        (ii) all  actions,  decisions  and  instructions  of the
         Shareholders'  Representative  shall be conclusive and binding upon all
         of the Quantime  Shareholders;  no Quantime  Shareholder shall have any
         cause of action  against  SPSS for any  action  taken or  omitted to be
         taken,  decision made or omitted to be made or any instruction given or
         omitted  to be  given  by  the  Shareholders'  Representative;  and  no
         Quantime  Shareholder  shall  have any  cause  of  action  against  the
         Shareholders'  Representative  for any action  taken,  decision made or
         instruction  given  by  the  Shareholders'  Representative  under  this
         Agreement, except for fraud, gross negligence or willful breach of this
         Agreement by the Shareholders' Representative;

                       (iii) the Shareholders' Representative shall be deemed to
         fulfill any fiduciary  obligation to the Quantime  Shareholders so long
         as no  Quantime  Shareholder  is  adversely  affected  by any action or
         failure   to   act   of   the   Shareholders'   Representative   in   a
         disproportionate measure compared to any other Quantime Shareholder;

                        (iv)  remedies  available  at law for any  breach of the
         provisions  of this Section are  inadequate;  therefore,  SPSS shall be
         entitled to  temporary  and  permanent  injunctive  relief  without the
         necessity  of proving  damages if SPSS  brings an action to enforce the
         provisions of this Section; and

                         (v) the provisions of this Section are  independent and
         severable,  shall constitute an irrevocable power of attorney,  coupled
         with  an  interest  and  surviving  death,   granted  by  the  Quantime
         Shareholders to the Shareholders'  Representative  and shall be binding
         upon the executors, heirs, legal representatives and successors of each
         Quantime Shareholder.

         2.6 Fees  of  Shareholders'  Representative.  All  fees  and  expenses 
incurred  by  the  Shareholders' Representative  shall  be  paid by the Quantime
Shareholders.

         2.7 No Personal Liability. The Shareholders' Representative shall incur
no personal liability with respect to any action taken or suffered by him in his
capacity as Shareholders'  Representative in reliance upon any document believed
by him to be  genuinely  and duly  authorized,  nor  (solely in his  capacity as
Shareholders'  Representative)  for any other action or inaction  except his own
willful misconduct or negligence, fraud or willful breach of this Agreement. The
Shareholders'  Representative  may, in all questions relating to his obligations
as  Shareholders'  Representative  rely  on  the  advice  of  counsel,  and  the
Shareholders'   Representative   (solely  in  his   capacity  as   Shareholders'
Representative)  shall not be liable for anything  done,  omitted or suffered in
good faith by him to be done based upon such advice.  The Quantime  Shareholders
shall  indemnify and save  harmless the  Shareholders'  Representative  from and
against  all  losses,  costs  and  expenses  which he may  incur as a result  of
involvement

                                      - 4 -

<PAGE>



in  any  legal  proceeding  arising  from  the  performance  of  his  duties  as
Shareholders' Representative hereunder.


                                   ARTICLE III

                                     ESCROW

         3.1 Escrow.  At Closing,  SPSS shall cause to be issued, in the name of
each Shareholder newly issued shares of SPSS Common Stock in accordance with the
provisions of Schedule 3.1. The Escrow Agent (as defined in the Stock Pledge and
Escrow  Agreement to be entered into between the parties  hereto and such Escrow
Agent in connection herewith) will hold in escrow for the Shareholders' account,
in the  respective  amounts  set forth on Schedule  3.1,  the  Escrowed  Shares,
together  with stock powers duly  executed in blank  attached,  in good form for
delivery.  The Escrow Agent will hold the Escrowed  Shares  subject to the terms
and conditions of Section 3.2 hereof.

         3.2 Escrowed  Shares.  Upon the Closing Date,  the  Shareholders  shall
pledge and grant a first priority  security  interest in the Escrowed  Shares to
SPSS as collateral to satisfy any  post-Closing  claims for breaches  under this
Agreement, and shall enter into a Stock Pledge and Escrow Agreement with respect
thereto  (the  "Escrow  Agreement").  The  number of  Escrowed  Shares,  if any,
remaining  after any retention  made in accordance  with this  Agreement will be
delivered to the  Shareholders,  in amounts  proportionate to the  Shareholders'
interest  in such  Escrowed  Shares,  promptly  after  delivery to SPSS of SPSS'
year-end  audited  financial  statements by SPSS'  outside  auditors (the "Audit
Release Date"),  except for the number of such Escrowed Shares then subject to a
bona fide dispute over which a party is entitled to such Escrowed Shares.


                                   ARTICLE IV

                               SECURITIES MATTERS

         4.1 Registration of SPSS Common Stock.

                  (a) SPSS  shall  prepare  and  file  with  the  United  States
Securities and Exchange  Commission  ("SEC") as soon as practicable,  subject to
review by the Quantime  Shareholders,  (but in no event later than 90 days after
the  Closing)  a  registration  statement  on  Form  S-3  and/or  Form  S-4,  as
appropriate   (together  with  all  amendments  and   supplements  to  any  such
registration statement,  including post-effective  amendments,  and all material
incorporated  by  reference  or deemed to be  incorporated  by reference in such
registration statement, the "Registration Statement"),  under the Securities Act
of 1933, and the rules and regulations promulgated thereunder (the "1933 Act" or
the "Act"), for the registration (the  "Registration") of the secondary offering
of the SPSS Common Stock for the account of the Shareholders. SPSS

                                      - 5 -

<PAGE>



expects to have published  audited financial  results,  covering at least thirty
(30)  days  of the  combined  operations  of SPSS  and  Quantime  following  the
Acquisition,  not later  than  March 31,  1998.  SPSS  shall use all  reasonable
efforts to have the  Registration  declared  effective by the SEC promptly after
filing.  To the extent that shares of SPSS  Common  Stock are not  acquired by a
Quantime  Shareholder  pursuant to an effective  registration  statement on Form
S-4,  SPSS shall use all  reasonable  efforts to register such SPSS Common Stock
for sale on a delayed or  continuous  basis  under Rule 415 of the 1933 Act and,
provided that Form S-3 shall be available to SPSS for the Registration,  to keep
such Registration  Statement continuously  effective,  current and available for
use by the  Shareholders  for a period of twenty-four  (24) months following the
date of  effectiveness,  or such shorter  period that will terminate when all of
the shares of SPSS Common Stock have been sold by the Shareholders (the "Trading
Period").  While any Form S-3 Registration Statement remains in effect, SPSS may
at any time deliver to Shareholders  written notice to the effect that sales may
not be  effected  under  the  Registration  Statement  for a period of time (the
"Blackout  Period")  because of the existence of material facts not disclosed or
incorporated by reference in such Registration Statement and in the then-current
prospectus included therein; upon receipt of any such notice, Shareholders shall
refrain  from  selling any shares of SPSS Common  Stock under such  Registration
Statement  until they have  received  notice  from SPSS to the effect  that such
sales may then be  effected.  In no event shall the  Blackout  Period be greater
than any similar period of time during which SPSS restricts any of its employees
from  effecting  sales in SPSS Common Stock because of the existence of material
facts  not  disclosed  or  incorporated  by  reference  in  any   then-effective
registration  statement and in the then-current  prospectus  included therein or
otherwise not publicly  disclosed.  SPSS shall promptly update such Registration
Statement and the prospectus  included  therein in order to permit the shares of
SPSS Common  Stock to be sold,  and the Trading  Period shall  automatically  be
extended by the  aggregate  number of days during  which the  Shareholders  were
instructed  to refrain  from  selling  shares of SPSS  Common  Stock  during all
Blackout Periods.

                  (b) The  Shareholders  shall cooperate with SPSS in connection
with the  Registration  and shall  provide  such  information  and execute  such
documents as SPSS shall reasonably  request in connection with the Registration.
The  Quantime  Insiders  shall use all  reasonable  efforts to cause  Quantime's
accountants to consent to the inclusion in the  Registration  Statement of their
report, if required,  and to assist in preparing  reconciliations  in accordance
with  generally  accepted  accounting   principles  in  the  United  States,  as
necessary.

                  (c) SPSS  shall  not  grant to any  holder  of  shares of SPSS
Common  Stock  registration  rights  which  interfere  with  the  rights  of the
Shareholders and the obligations of SPSS under this Article IV.

                  (d) Prior to the Earnings  Release Date (as defined in Section
12.8  hereof),  SPSS will not take any action for which it would be  required to
file a Form 8-K under Item 1 or Item 2 thereof.

         4.2  Sales of SPSS  Common  Stock  by the Shareholders.  If at any time
prior to the effectiveness of the Registration Statement any Shareholder elects 
to sell all or any of his shares

                                      - 6 -

<PAGE>



of SPSS Common  Stock,  such  Shareholder  shall conduct such sales only through
registered securities brokers ("Brokers").

         4.3 Registration Expenses.  SPSS shall be responsible for and shall pay
all fees,  costs and  expenses  incurred  by it  relating  to the  Registration,
including  without  limitation,   all  SEC  and  securities   exchange,   NASDAQ
registration  and filing fees,  and all fees and expenses of  compliance by SPSS
with the federal  securities laws or any applicable state blue sky laws, but not
including  (i) any fees and  expenses  of  Shareholders'  counsel  or  otherwise
incurred by the Shareholders,  and (ii) underwriters' fees or expenses, broker's
costs,  commissions and other similar disposition costs associated with the SPSS
Common Stock owned by any Shareholder.

         4.4 Restricted  Stock.  Quantime  has advised the Shareholders, and the
Shareholders understand and agree, as follows:

                  (a) That the shares of SPSS Common Stock to be received by the
Shareholders  pursuant  to  this  Agreement  are  not  currently  subject  to  a
registration statement under the Act, and are issued pursuant to exemptions from
registration under the Act which exemptions  depend,  among other things, on the
bona fide nature of their investment intent.

                  (b) That they shall not  transfer  the SPSS Common Stock to be
received by the  Shareholders  pursuant to this  Agreement  except in compliance
with the  provisions  of the Act. Any proposed  transferee of the shares of SPSS
Common Stock shall agree to take and hold such  securities  upon the  conditions
set forth in Section 4.4(c) hereof.

                  (c) Until such time as the shares being sold  hereunder to the
Quantime   Shareholders  may  be  sold  under  Rule  144(k),   each  certificate
representing the shares of SPSS Common Stock issued to the Shareholders shall be
stamped or otherwise imprinted with a legend in substantially the following form
(in addition to any legend required under applicable state securities laws):

                  THE SHARES  REPRESENTED BY THIS CERTIFICATE HAVE BEEN ACQUIRED
                  IN A PRIVATE PLACEMENT.  SUCH SHARES MAY NOT BE OFFERED,  SOLD
                  OR  TRANSFERRED  IN THE  UNITED  STATES IN THE  ABSENCE  OF AN
                  EFFECTIVE  REGISTRATION  STATEMENT UNDER THE SECURITIES ACT OF
                  1933 OR AN  EXEMPTION  THEREFROM  OR IN  CONTRAVENTION  OF THE
                  AGREEMENT   COVERING   THE   PURCHASE  OF  THESE   SHARES  AND
                  RESTRICTING  THEIR  TRANSFER.  COPIES OF THE  AGREEMENT MAY BE
                  OBTAINED AT NO COST BY WRITTEN  REQUEST  MADE BY THE HOLDER OF
                  RECORD OF THIS  CERTIFICATE TO THE SECRETARY OF THE COMPANY AT
                  ITS PRINCIPAL OFFICE.


                                      - 7 -

<PAGE>



When the shares being sold  hereunder to the Quantime  Shareholders  may be sold
under the  circumstances  described  in Rule  144(k) (or any  successor  rule or
regulation)  and there exists no other  restriction on the sale of stock imposed
subsequent  to the date hereof,  SPSS will,  upon  request of the  Shareholders'
Representative,  cause SPSS' transfer  agent to exchange the shares  legended as
set forth above for unlegended shares.

                  (d) Unless a  registration  statement  under the Act  covering
transactions  in the  SPSS  Common  Stock  to be  received  by the  Shareholders
pursuant  to this  Agreement  has been  declared  effective  by the SEC and such
registration statement remains effective at the time of transfer, each holder of
shares of SPSS Common Stock to be received by the Shareholders  pursuant to this
Agreement  shall comply in all respects with the provisions of this Section 4.4.
Prior to any proposed transfer of any such securities,  the holder thereof shall
give written  notice to SPSS of such holder's  intention to effect such transfer
and shall comply with the requirements set forth in the balance of this section.
Each such notice  shall  describe the manner and  circumstances  of the proposed
transfer in reasonable detail, and shall be accompanied by (i) a written opinion
of legal  counsel who shall be  reasonably  satisfactory  to SPSS,  addressed to
SPSS, and reasonably satisfactory in form and substance to SPSS' counsel, to the
effect that the proposed  transfer of such  securities  may be effected  without
registration  under the 1933 Act, (ii) a "no action"  letter from the SEC to the
effect that the distribution of such securities  without  registration  will not
result in a  recommendation  by the staff of the SEC that  action be taken  with
respect  thereto,  or (iii)  such  other  showing  satisfactory  to SPSS and its
counsel that the proposed  transfer of such  securities may be effected  without
registration  under the 1933 Act,  whereupon the holder of such securities shall
be entitled to transfer  such  securities  in  accordance  with the terms of the
notice delivered by the holder to SPSS.

         4.5 Indemnification;  Contribution.  In the event any SPSS Common Stock
held by a Shareholder is included in a registration statement under this Article
IV:

                  (a) SPSS will  indemnify and hold  harmless such  Shareholder,
any underwriter (as defined in the Act) for such Shareholder and each person, if
any, who controls such Shareholder or underwriter  within the meaning of the Act
or the 1934 Act,  against any losses,  claims,  damages,  liabilities  (joint or
several) or expenses to which they may become  subject  under the Act,  the 1934
Act or other  federal or state law,  insofar as such  losses,  claims,  damages,
liabilities  (or actions in respect  thereof)  or  expenses  arise out of or are
based  upon  any  of  the   following   statements,   omissions  or   violations
(collectively  a  "Violation"):  (i) any  untrue  statement  or  alleged  untrue
statement of a material fact contained in such registration statement, including
any  preliminary  prospectus  or  final  prospectus  contained  therein  or  any
amendments  or  supplements  thereto,  (ii) the omission or alleged  omission to
state  therein a material fact  required to be stated  therein,  or necessary to
make the statements  therein not  misleading,  or (iii) any violation or alleged
violation by SPSS of the Act, the 1934 Act, any state securities law or any rule
or regulation  promulgated  under the Act, the 1934 Act or any state  securities
law;  and SPSS will pay to each such  Shareholder,  underwriter  or  controlling
person,  any and all  legal or other  expenses  reasonably  incurred  by them in
connection  with  investigating  or  defending  any such  loss,  claim,  damage,
liability, or action; provided, however, that the indemnity agreement

                                      - 8 -

<PAGE>



contained  in  this  subsection  4.5(a)  shall  not  apply  to  amounts  paid in
settlement of any such loss, claim, damage, liability, action or expense if such
settlement is effected  without the consent of SPSS,  which consent shall not be
unreasonably  withheld,  nor shall  SPSS be liable in any such case for any such
loss, claim, damage,  liability,  action or expense to the extent that it arises
out of or is  based  upon a  Violation  which  occurs  in  reliance  upon and in
conformity  with  written  information  furnished  by  such  Shareholder  or any
controlling person of such Shareholder expressly for use in connection with such
registration.

                  (b) Such  Shareholder  will  indemnify and hold harmless SPSS,
each of its  directors,  each of its  officers  who has signed the  registration
statement, each person, if any, who controls SPSS within the meaning of the Act,
any underwriter, and any controlling person of any such underwriter, against any
losses, claims, damages, liabilities (joint or several) or expenses to which any
of the  foregoing  persons may become  subject,  under the Act,  the 1934 Act or
other federal or state law, insofar as such losses, claims, damages, liabilities
(or actions in respect  thereto) or expenses  arise out of or are based upon any
Violation,  in each  case to the  extent  (and  only to the  extent)  that  such
Violation  occurs in reliance  upon and in conformity  with written  information
furnished  by  such  Shareholder  expressly  for  use in  connection  with  such
registration;  and such  Shareholder  will pay, as incurred,  any legal or other
expenses reasonably  incurred by any person intended to be indemnified  pursuant
to this subsection  4.5(b),  in connection with  investigating  or defending any
such loss, claim, damage, liability,  action or expense; provided, however, that
the indemnity  agreement  contained in this subsection 4.5(b) shall not apply to
amounts paid in settlement of any such loss, claim, damage, liability, action or
expense if such settlement is effected without the consent of such  Shareholder,
which consent shall not be unreasonably withheld or delayed;  provided, that, in
no event  shall any  indemnity  under this  subsection  4.5(b)  exceed the gross
proceeds  from the offering of the shares of SPSS Common Stock  received by such
Shareholder.  SPSS  shall  make  the  Registration  Statement  available  to the
Quantime Shareholders for comment prior to the filing thereof.

                  (c) Promptly after receipt by an indemnified  party under this
Section  4.5  of  notice  of  the  commencement  of any  action  (including  any
governmental action), such indemnified party will, if a claim in respect thereof
is to be made against any indemnifying  party under this Section 4.5, deliver to
the  indemnifying  party a written  notice of the  commencement  thereof and the
indemnifying  party shall have the right to  participate  in, and, to the extent
the indemnifying  party so desires,  jointly with any other  indemnifying  party
similarly  noticed,   to  assume  the  defense  thereof  with  counsel  mutually
satisfactory  to the  parties;  provided,  however,  that an  indemnified  party
(together with all other  indemnified  parties which may be represented  without
conflict by one counsel)  shall have the right to retain one  separate  counsel,
with  the  fees  and  expenses  to  be  paid  by  the  indemnifying   party,  if
representation  of  such  indemnified  party  by  the  counsel  retained  by the
indemnifying party would be inappropriate due to a conflict of interests between
such indemnified  party and any other party  represented by such counsel in such
proceeding.  The failure to deliver  written  notice to the  indemnifying  party
within a reasonable time of the commencement of any such action,  if prejudicial
to its ability to defend such action,  shall relieve such indemnifying  party of
any liability to the indemnified party under this Section 4.5.

                                      - 9 -

<PAGE>




                  (d) If the  indemnification  provided  for in this Section 4.5
from the indemnifying  party is unavailable to an indemnified party hereunder in
respect of any losses,  claims,  damages,  liabilities  or expenses  referred to
therein,  then the indemnifying  party, in lieu of indemnifying such indemnified
party,  shall contribute to the amount paid or payable by such indemnified party
as a result of such losses,  claims,  damages,  liabilities  or expenses in such
proportion as is appropriate  to reflect the relative fault of the  indemnifying
party and  indemnified  party in connection  with the actions which  resulted in
such losses,  claims,  damages,  liabilities  or expenses,  as well as any other
relevant  equitable  considerations.  The relative  faults of such  indemnifying
party and  indemnified  party shall be  determined  by reference to, among other
things,  whether any action in question,  including any untrue or alleged untrue
statement of a material fact or omission or alleged omission to state a material
fact, has been made by, or relates to information supplied by, such indemnifying
party or indemnified party, and the parties' relative intent, knowledge,  access
to information  and  opportunity  to correct or prevent such action.  The amount
paid  or  payable  by a  party  as a  result  of the  losses,  claims,  damages,
liabilities and expenses  referred to above shall be deemed to include any fees,
charges or expenses  (including fees,  disbursements  and other charges of legal
counsel)  reasonably incurred by such party in connection with any investigation
or  proceeding.  No person  guilty of fraudulent  misrepresentation  (within the
meaning  of  Section  11(f)  of  the  Securities   Act)  shall  be  entitled  to
contribution from any person.

         4.6 Additional  Obligations of SPSS.  With respect to any  registration
hereunder, SPSS shall:

                  (a) furnish to the  Shareholders  such  numbers of copies of a
prospectus,   including  a  preliminary  prospectus,   in  conformity  with  the
requirements of the Act, and such other documents as they may reasonably request
in order to facilitate  the  disposition of shares of SPSS Common Stock owned by
them;

                  (b) use reasonable  efforts to qualify the securities  covered
by such  registration  statement under such other securities or Blue Sky laws of
such  jurisdictions  as shall be reasonably  appropriate for the distribution of
the securities covered by the registration statement;

                  (c) use  reasonable  efforts to notify the NASDAQ Stock Market
of the issuance of the shares of SPSS Common Stock covered by such  registration
statement and list such shares; and

                  (d) notify each  Shareholder  of shares of SPSS  Common  Stock
under such  registration  statement as promptly as possible,  at any time when a
prospectus  relating  thereto is required to be delivered  under the Act, of the
happening  of any  event of which  SPSS has  knowledge  as a result of which the
prospectus contained in such registration statement, as then in effect, includes
an  untrue  statement  of a  material  fact or omits to  state a  material  fact
required to be stated  therein or necessary to make the  statements  therein not
misleading in light of the circumstances then existing.


                                     - 10 -

<PAGE>



         4.7 Reports Under the Exchange Act. With a view to making  available to
the  Shareholders  the  benefits of Rule 144  promulgated  under the Act and any
other rule or regulation of the SEC that may at any time permit a Shareholder to
sell securities of SPSS to the public without  registration,  SPSS agrees to use
its reasonable efforts to:

                  (a) make and keep public information available, as those terms
are understood and defined in Rule 144, at all times;

                  (b) file with the SEC in a timely manner all reports and other
documents required of SPSS under the Act and the Exchange Act; and

                  (c)  furnish  to any  Shareholder  forthwith  upon  request  a
written  statement by SPSS that it has complied with the reporting  requirements
of Rule  144 and of the Act and the  Exchange  Act,  a copy of the  most  recent
annual or  quarterly  report of SPSS,  and such other  reports and  documents so
filed by SPSS as may be reasonably  requested in availing any Shareholder of any
rule or regulation of the SEC  permitting  the selling of any securities of SPSS
held by it without registration.


                                    ARTICLE V

             REPRESENTATIONS AND WARRANTIES OF THE QUANTIME INSIDERS

         The Quantime Insiders, jointly and severally,  represent and warrant as
of the date hereof to SPSS as follows:

         5.1 Organization and Qualification.  (a) Quantime is a corporation duly
organized and validly existing under English law and has the corporate power and
authority  to own or lease the  properties  and other  assets which it presently
owns or leases and to carry on its business as presently conducted.

         Quantime  Corporation  and  Quantime  S.A. de C.V.  are wholly owned by
Quantime and are the only entities  owned or under common control with Quantime.
Quantime  Corporation is a corporation  duly organized,  validly existing and in
good standing under the laws of the State of Delaware,  is qualified to transact
business in the State of Ohio,  and has the power and  authority to own or lease
the  properties  and other assets which it presently owns or leases and to carry
on its business as presently  conducted.  Quantime S.A. de C.V. is a corporation
duly  organized,  validly  existing and in good standing under Mexican law, and,
except as described in Schedule 5.11(a),  neither owns nor leases any properties
or other  assets  (and at no time has owned or leased  any  properties  or other
assets) and conducts no business (and at no time has  conducted  any  business).
(Quantime  Corporation is hereinafter referred to as the "Subsidiary";  Quantime
S.A.  de C.V.  is  hereinafter  referred  to as the  "Mexican  Subsidiary";  the
Subsidiary and the Mexican Subsidiary are hereinafter  collectively  referred to
as the "Subsidiaries".)

                                     - 11 -

<PAGE>



Except as referred to in Schedule 5.(1)(a), neither Quantime, the Subsidiary nor
the Mexican  Subsidiary has any equity or other ownership  interest in any other
entity.

                  (b)  The  copy  of the  Memorandum  of  Association,  and  all
amendments thereto,  of Quantime,  as filed with the United Kingdom Registrar of
Companies, and of the Articles of Association,  as amended to date, of Quantime,
as certified by its Secretary and as filed with the United Kingdom  Registrar of
Companies,  all as previously  made  available to SPSS,  are true,  complete and
correct  copies  as  amended  and  presently  in  effect.   The  copies  of  any
organizational  and governing  documents of the Subsidiaries  including  without
limitation  the  Certificate  of  Incorporation  of  Quantime  Corporation,   as
certified by the appropriate  government  authorities,  and the Bylaws and other
documents  serving  substantially  the same  function,  all as  previously  made
available  to SPSS,  are  true,  complete  and  correct  copies as  amended  and
presently in effect.  All minutes and consents of the shareholders and directors
of Quantime and the  Subsidiaries  are contained in the minute books of Quantime
and the  Subsidiaries  and said  minute  books have been  furnished  to SPSS for
examination.  Other than the minutes  provided by and  certified by the Quantime
Insiders' on the Closing Date, no minutes or consents have been included in such
minute  books  since such  examination  by SPSS which have not  heretofore  been
furnished to SPSS and no corporate action not reflected in said minute books has
been taken.

                  (c) Except as set forth in Schedule  5.1(c) hereto,  Quantime,
the Subsidiary and the Mexican Subsidiary are each duly licensed or qualified to
do business as a foreign  corporation,  and are each in good standing,  in every
domestic and foreign jurisdiction in which each of Quantime,  the Subsidiary and
the Mexican Subsidiary are required to be so licensed or qualified, except where
failure to do any of the foregoing  would not have a material  adverse effect on
the business, properties or condition (financial or other) of either Quantime or
the Subsidiaries.

                  (d) All  charges in favor of  Quantime  have (if  appropriate)
been registered in accordance with ss395,  409, 410 and 424 of the Companies Act
1985 of England.

         5.2 Authority. The Quantime Shareholders,  on their own behalf, and the
attorneys-in-fact  executing and delivering this Agreement on behalf of any such
Quantime  Shareholders,  have full power,  capacity and authority  (corporate or
otherwise)  to  execute  and  deliver  this  Agreement,  and all  documents  and
instruments  executed and delivered in connection  therewith,  and to consummate
the transactions  contemplated hereby and thereby. The execution and delivery of
this Agreement and such other documents and the consummation of the transactions
contemplated  hereby  and  thereby  have been duly and  validly  authorized  and
approved  by  all  necessary  action  on  the  part  of  each  of  the  Quantime
Shareholders  and the Board of Directors  of Quantime  and no other  proceedings
(corporate  or  otherwise)  on the part of any of the Quantime  Shareholders  or
Quantime are  necessary to authorize  this  Agreement  and such  documents or to
consummate the transactions  contemplated hereby and thereby. This Agreement and
the other  agreements  contemplated by this Agreement have been duly and validly
executed and delivered by or on behalf of each of the Quantime  Shareholders and
constitute legal, valid

                                     - 12 -

<PAGE>



and  binding  agreements  of the  Quantime  Shareholders.  No person is a shadow
director of Quantime  (within the meaning of s741 of the Companies  Acts 1985 of
England) who is not treated as one of  Quantime's  directors for all purposes of
such laws.

         5.3 Capitalization. The entire authorized capital stock of Quantime and
the number of Shares thereof which are issued and outstanding are as follows:

============================================================================
    NUMBER OF                                                     NUMBER
AUTHORIZED SHARES                                             ISSUED AND
   OF QUANTIME                       CLASS                   OUTSTANDING
- ----------------------------------------------------------------------------
    6,000,000                       Class A                    1,320,394
- ----------------------------------------------------------------------------
    2,000,000                       Class B                      854,341
- ----------------------------------------------------------------------------
    4,000,000                       Class C                      300,000
                                                       plus 3,371,615 in
                                                         Bearer Warrants
- ----------------------------------------------------------------------------
    4,000,000                       Class D                            0
- ----------------------------------------------------------------------------
    3,671,615                       Deferred                           0
                                 1 pence shares
============================================================================


31.2902% of the issued and  outstanding  Shares of Quantime's  capital stock are
owned of record and beneficially by the  Shareholders in the respective  amounts
set forth in Schedule 5.3 hereto.  Quantime  beneficially owns all of the issued
and  outstanding  shares of the  Subsidiaries'  capital  stock (the  "Subsidiary
Shares").  The Shares and Subsidiary  Shares are subject to no  restrictions  on
transferability  other than restrictions  imposed by the Articles of Association
of  Quantime,  the  1933  Act,  English  securities  laws and  applicable  state
securities laws of states of the United States. All of the outstanding Shares of
capital stock of Quantime and Subsidiary  Shares are duly authorized and validly
issued and outstanding,  fully paid and  non-assessable,  and were not issued in
violation  of any  preemptive  rights.  There are no Shares of capital  stock in
treasury,  and there are no Shares or Subsidiary  Shares  reserved for issuance.
Except as set forth in this  Agreement  and  Schedule  5.3 hereto,  there are no
outstanding options, warrants, conversion or other rights to acquire from any of
the Shareholders or Quantime,  or any plans,  contracts or commitments providing
for the issuance of, or the granting of,  rights by any of the  Shareholders  or
Quantime  to  acquire:  (i) any capital  stock of  Quantime  (whether  issued or
unissued)  or  Subsidiary  Shares  or (ii) any  securities  convertible  into or
exchangeable for any capital stock of Quantime or Subsidiary  Shares.  Except as
set forth Schedule 5.3 hereto,  there are no agreements or  understandings  with
respect to the  voting,  holding  or  selling of any Shares of capital  stock of
Quantime or Subsidiary Shares, or any contractual obligations of Quantime or any
of its  Shareholders  with respect to  Quantime's  capital  stock or  Subsidiary
Shares.  There are no voting trusts or proxies  currently in effect with respect
to the Shares or Subsidiary

                                     - 13 -

<PAGE>



Shares. Except as provided in this Agreement, no person has any right to require
Quantime or the  Subsidiaries to register any of its or their  securities  under
the 1933 Act or pursuant to applicable English law.

         5.4 Status of Quantime Shareholders.  Each of the Quantime Shareholders
hold the positions described in Schedule 5.4 hereof.

         5.5 Consents and Approvals. Except as set forth in Schedule 5.5 hereto,
there is no authorization, consent, order or approval of, or notice to or filing
with, any individual or entity required to be obtained or given in order for the
Quantime  Shareholders to consummate the  transactions  contemplated  hereby and
fully perform their respective obligations hereunder.

         5.6 Absence of  Conflicts.  Except as set forth in Schedule 5.6 hereto,
the execution,  delivery and  performance by the Quantime  Shareholders  of this
Agreement and the consummation by the Quantime  Shareholders of the transactions
contemplated  hereby will not,  with or without the giving of notice or lapse of
time or both, (i) violate any provision of law,  statute,  rule or regulation to
which either  Quantime or the  Quantime  Shareholders  is or was  subject,  (ii)
violate  any order,  judgment  or decree  which is or was  applicable  to either
Quantime or the Quantime Shareholders; (iii) conflict with or result in a breach
or default  under any term or  condition of the  Memorandum  of  Association  or
Articles of  Association  of Quantime,  or any agreement or other  instrument to
which either Quantime or the Quantime Shareholders is a party or by which either
of them is bound,  or (iv)  cause,  or give any  person  grounds  to cause,  the
maturity of any debt,  liability or obligation of Quantime to be  accelerated or
increase any such liability or obligation.

         5.7 Financial Statements:  Accounts Receivable. Quantime has previously
delivered to SPSS true and correct copies of the combined audited balance sheets
of Quantime  and the  Subsidiary,  as of March 31, 1997 and the related  audited
statements of income,  statements of retained earnings and statements of changes
in cash flows for the periods ending on such dates (collectively, the "Financial
Statements").  Except as disclosed on Schedule 5.7, the Financial Statements (i)
have  been  prepared  in  accordance  with  the  generally  accepted  accounting
principles  commonly  used in England  applied on a consistent  basis and comply
with the  Companies  Act 1985 of England,  are correct and  complete  and are in
accordance  with the books and  records of  Quantime  and the  Subsidiary,  (ii)
present  fairly  the  financial  position  and  condition  of  Quantime  and the
Subsidiary  and the related  results of  operations  as at the dates and for the
periods then ended (subject to customary year-end adjustments, which adjustments
shall  not be  material  in  kind  or  amount  and  adjustments  resulting  from
fluctuations  in  currency   exchange  rates)  and  (iii)  contain  no  material
misstatements  or  omissions  which  under such  generally  accepted  accounting
principles would be required to be disclosed for financial statement purposes.

         Subject to applicable  reserves for bad debts shown on  Quantime's  and
Subsidiary's  latest balance sheet(s) included in the Financial  Statements,  as
such  reserves  are adjusted  from the date  thereof in the  ordinary  course of
business (and subject to customary year-end adjustments, which

                                     - 14 -

<PAGE>



adjustments  shall not be material in kind or amount and  adjustments  resulting
from  fluctuations  in  currency  exchange  rates),  and  except as set forth in
Schedule 5.7 hereto, all accounts and notes receivable  reflected on the balance
sheet(s) are, and to the best of Quantime  Insiders'  knowledge all accounts and
notes receivable  subsequently  accruing to the Closing Date will be, (a) valid,
genuine  and  subsisting,   (b)  subject  to  no  known  defenses,   setoffs  or
counterclaims and (c) current and collectible.

         5.8  Absence of  Undisclosed  Liabilities.  Except as and to the extent
reserved for in the Financial Statements or as set forth in Schedule 5.8 hereto,
neither  Quantime nor Subsidiary has any  liabilities  or  obligations,  whether
accrued, absolute or contingent,  determined or undetermined,  or whether due or
to become due (including,  without  limitation,  obligations as guarantor) other
than those in the ordinary  course of business since March 31, 1997,  which have
not yet been accrued or booked. To the best of the Quantime Insiders' knowledge,
there is no basis for the  assertion of any claim or  liability  relating to the
businesses  of  either  Quantime  or  Subsidiary,  nor  are  they  aware  of any
occurrence or fact that has or might have an adverse effect on the businesses of
either  Quantime or  Subsidiary.  Except as disclosed in Schedule 5.8, as of the
date of this Agreement,  neither Quantime nor Subsidiary has outstanding debt to
any bank or other lender.

         5.9  Absence  of  Certain  Changes  or  Events.  Except as set forth on
Schedule 5.9 hereto,  since March 31, 1997,  there has not been (a) any material
damage,  destruction  or  casualty  loss to the  properties  or assets of either
Quantime  or  Subsidiary  (whether  covered by  insurance  or not)  outside  the
ordinary  course of business;  (b) any material  adverse change in the business,
assets,  properties,  operations  or financial  condition of either  Quantime or
Subsidiary, or any fact or condition which could cause such a change, other than
any change,  fact or condition  related solely to the transactions  contemplated
hereby; (c) any entry into any transaction,  commitment or agreement (including,
without limitation, any borrowing) individually or in the aggregate in excess of
$25,000,  and outside  the  ordinary  course of  business of either  Quantime or
Subsidiary;  (d)  any  direct  or  indirect  redemption,   repurchase  or  other
acquisition  for value by Quantime of its capital stock or any agreement to take
such action,  or any  declaration,  setting  aside or payment of any dividend or
other distribution in cash, stock or property with respect to Quantime's capital
stock;  (e)  except  for  information  pertaining  to  annual  salary  increases
effective  April 1997,  which  information has previously been provided to SPSS,
any increase in the rate or terms of  compensation  payable or to become payable
by either  Quantime  or  Subsidiary  to their  respective  directors,  officers,
employees,  agents or  independent  contractors  or any  increase in the rate or
change in the terms of any employment agreement or compensatory arrangement,  or
any  changes in any  bonus,  severance,  pension,  insurance  or other  employee
benefit plan, or any other payment or benefit made to or for any such  director,
officer,  employee,  agent or independent contractor;  (f) any sale, transfer or
other  disposition  of any asset of either  Quantime or Subsidiary to any party,
including,   without  limitation,  the  Shareholders,   except  for  payment  of
obligations  incurred,  and sale of products, in the ordinary course of business
consistent with past practices; (g) any amendment or termination of any material
contract or agreement to which either  Quantime or  Subsidiary is a party or any
termination  or waiver of any other rights of value to the  businesses of either
Quantime or Subsidiary, except

                                     - 15 -

<PAGE>



in the  ordinary  course of business  consistent  with past  practices;  (h) any
capital expenditure for additions to property or equipment by either Quantime or
Subsidiary  in  excess of  $10,000;  (i) any  split,  combination,  exchange  or
reclassification  of shares of capital stock of either  Quantime or  Subsidiary;
(j) any  issuance  of  capital  stock of either  Quantime  or  Subsidiary  or of
securities convertible into or rights to acquire any such capital stock; (k) any
failure  by either  Quantime  or  Subsidiary  to pay  accounts  payable or other
obligations  in the ordinary  course of  business;  (l) any pledge of any of the
assets or properties of either  Quantime or Subsidiary or any action or inaction
which  would  subject  any such  assets  or  properties  to any  lien,  security
interest, mortgage, pledge, claim, charge or other encumbrance of any kind other
than seller's liens incurred in the ordinary course of business;  (m) any actual
or, to the best of the Quantime Insiders' knowledge,  threatened  termination or
cancellation  of, or modification or change in, any business  relationship  with
any customer or customers of either Quantime or Subsidiary or other agreement or
arrangement  involving or related to the assets or properties of the  businesses
of either Quantime or Subsidiary;  (n) any  cancellation  of a debt,  other than
trade debt, due to or a claim of either  Quantime or  Subsidiary,  other than by
payment or other satisfaction;  (o) any failure of either Quantime or Subsidiary
to perform under,  or any default by either  Quantime or Subsidiary  under,  any
agreement,  obligation or covenant to which either of them is or was bound;  (p)
any change in any method of  accounting  or  accounting  practice,  principle or
procedure;  (q) any action or  inaction  which might  cause  either  Quantime or
Subsidiary to incur any tax  liability  out of the ordinary  course of business;
(r) any other event or condition of any character which materially and adversely
affects the businesses of either  Quantime or Subsidiary;  or (s) any agreement,
whether in writing or  otherwise,  to take any action  described in this Section
5.9. A matter  described in this Section 5.9 shall be deemed to be "material" if
any damage, destruction,  loss or adverse change exceeds, individually or in the
aggregate for each subsection, $50,000.

         5.10     [Intentionally Omitted].

         5.11 Real and Personal Property;  Inventories.  Schedule 5.11(a) hereto
correctly  identifies  (i) each lease or rental of real property held or paid by
each of Quantime and Subsidiary; and (ii) each parcel of real property, and each
interest (other than such leases or rentals) in real property,  owned by or used
in the  operations  of the  businesses of each of Quantime and  Subsidiary;  and
(iii) all charges  against  such  properties  together  with the  principal  and
interest  outstanding,  it being hereby  confirmed  that Quantime and Subsidiary
have complied in all material  respects with the terms of the charges;  and (iv)
as to such real property,  all charges or leases or rentals the benefit of which
is vested in Quantime or  Subsidiary,  detailing  the principal and interest (in
respect of charges) and the rents  receivable  (in respect of leases),  it being
hereby  confirmed  that the  tenant,  lessee or  mortgagor  has  complied in all
material  respects to date with the terms of the mortgage deed, rental agreement
or lease  (as  appropriate)  and has not  alleged  any  breach  by  Quantime  or
Subsidiary.  Except as set forth in Schedule  5.11(a)  hereto,  (a) any land and
structures  described in Schedule  5.11(a) and Quantime's and  Subsidiary's  use
thereof  conform  in all  material  respects  with  all  applicable  ordinances,
requirements,   regulations,   zoning  laws,   planning  and  building  control,
restrictive  covenants,  leasehold  and  rental  covenants,  indemnities  given,
conditions and restrictions and do not

                                     - 16 -

<PAGE>



encroach on property of others,  and are not  encroached  upon by  structures of
others;  and (b) no claims,  charges or notice of  violations  have been  filed,
served,  made or, to the best of the Quantime Insiders'  knowledge,  threatened,
orally or in writing,  against or relating to any such property or the documents
under which it is held, or any of the operations  conducted at any such property
(currently or in the past) as a result of (i) any violation or alleged violation
of any applicable ordinances,  requirements,  regulations, zoning laws, planning
and building  control,  restrictive  covenants,  leasehold and rental covenants,
indemnities  given,  conditions  or  restrictions,  or (ii) as a  result  of any
encroachment  on the  property  of  others.  Also,  to the  extent any such real
property is located in the United  Kingdom,  Quantime is the sole  proprietor of
such real property  registered at HM Land Registry with absolute title,  and any
lease of such property  granted for more than 21 years and less than 40 years is
either registered at HM Land Registry or not registered because the reversion to
it was not registered at the time of grant, and there are no cautions or notices
registered  against  its  titles  and to the  best  of  the  Quantime  Insiders'
knowledge, there are not any overriding interests as set out in Section 70(1) of
the Land Registration Act 1925 of England.  Neither Quantime nor Subsidiary owns
real property in any other  countries.  Schedule  5.11(b)  hereto  describes all
material tangible or intangible personal property and assets of each of Quantime
and Subsidiary.  Quantime and Subsidiary have good and marketable  title to, and
are in possession  of or have control over,  all of their real property and good
title to all of their personal property,  none of which is held under or subject
to any mortgage, pledge, lien, lease, encumbrance, conditional sales contract or
other security  arrangement  except to the extent  described in Schedule 5.11(b)
hereto.  The tangible personal property and assets are sufficient to operate the
business and consist of all of such property used in the business. Since January
1988 and except for the real  property  described in Schedule  5.11(a),  neither
Quantime nor Subsidiary has owned any other real property or been the tenant of,
or a  guarantor  in  respect  of,  leasehold  property,  and to the  best of the
Quantime  Insiders'  knowledge,  neither  Quantime nor  Subsidiary has any other
actual or potential liability under leases with respect to leasehold property or
real  property  and has no actual or  potential  liability  under any  indemnity
covenants given for any leasehold or real property.

         The  inventories of each of Quantime and  Subsidiary,  as listed on the
balance sheet(s) of Quantime,  are in good and merchantable condition and are of
a quality suitable and usable or saleable in the ordinary course of business for
the purposes for which such inventories are intended.  The inventory,  as listed
on the balance  sheet(s) of  Quantime,  is adequate for each of  Quantime's  and
Subsidiary's  businesses,  and  except  as  stated in the  balance  sheet(s)  of
Quantime,  there has been no material  adverse change in the amount and quantity
of such inventories since March 31, 1997.

         5.12  Patents,  Trademarks,  Etc.  Schedule  5.12  hereto  contains  an
accurate  and  complete   description  of  all  domestic  and  foreign  patents,
trademarks, service marks, trademark registrations,  logos, trade names, assumed
names,  copyrights and copyright registrations and all applications therefor and
all  registered  designs  and design  rights  (collectively,  the  "Intellectual
Property"),  presently owned or held by each of Quantime and Subsidiary or under
which  either  Quantime or  Subsidiary  owns or holds any  license,  or in which
either Quantime or Subsidiary owns or holds any direct or indirect interest; and
no others are necessary for the conduct of the

                                     - 17 -

<PAGE>



present businesses of either Quantime or Subsidiary. To the best of the Quantime
Insiders' knowledge,  none of the products manufactured,  distributed or sold by
either  Quantime or Subsidiary,  nor any of the  Intellectual  Property or other
intellectual  property  (including without limitation,  technology,  inventions,
processes,  designs, formulae, know-how, trade secrets) (collectively,  with the
Intellectual  Property,  the  "Intellectual  Assets"),  or any of Quantime's and
Subsidiary's  activities,  conflict  with,  infringe  or  otherwise  violate any
patents,  trademarks or  copyrights,  or any other rights,  of any individual or
entity,  nor require  payments to be made to any  person.  Each of Quantime  and
Subsidiary  has the sole and exclusive  right to use, has the right and power to
sell, and has taken reasonable measures to maintain and protect the Intellectual
Assets;  no claims have been  asserted by any  individual or entity with respect
thereto or  challenging  or  questioning  the validity or  effectiveness  of any
license or  agreement  with  respect  thereto,  and, to the best of the Quantime
Insiders'  knowledge,  there  is no valid  basis  for any  such  claim.  Neither
Quantime nor  Subsidiary is using  confidential  information or trade secrets of
any former  employer of any past or present  employees  engaged in businesses of
either  Quantime or  Subsidiary.  The items  described in Schedule  5.12 and the
other  Intellectual  Assets are  adequate to conduct the  businesses  of each of
Quantime  and  Subsidiary  as  presently  conducted.  Subject to the  foregoing,
Quantime owns good title to all of the Intellectual Assets.

         5.13 Rights of Employees with Respect to Certain Intellectual Property.
Neither  Quantime  nor  Subsidiary  owns or has any right,  license or interest,
whether as a  licensee,  licenser  or  otherwise,  in any  copyrights,  patents,
applications for copyrights or patents, trade secrets, inventions, processes and
designs or in any trademarks,  service marks,  trade names, or applications  for
them, or registered  designs or design rights,  except as listed or described in
Schedule  5.12.  Quantime  is not,  and to the  best of the  Quantime  Insiders'
knowledge,  no employee of either  Quantime or Subsidiary is in violation of (i)
any  term of any  employment  contract,  any  "work  for  hire"  arrangement  or
agreement,  or any patent  disclosure  agreement  or (ii) any other  contract or
agreement,  or any  restrictive  covenant  relating  to the  rights  of any such
employee-to be employed by either Quantime or Subsidiary or to use trade secrets
or proprietary information of others.

         5.14     Contracts and Commitments.

         (a) Schedule 5.14 lists the following contracts and other agreements to
which either Quantime or Subsidiary is a party (collectively, the "Contracts"):

                  (i)      any   customer   agreement,   distributor   agreement
                           relating to the  licensing of products of Quantime or
                           Subsidiary  requiring  payments in excess of $100,000
                           per annum;

                  (ii)     any agreement for the lease of personal property from
                           any  person or entity  requiring  lease  payments  in
                           excess of $25,000 per annum;


                                         - 18 -

<PAGE>



                  (iii)    any  agreement  for  the  purchase  or  sale  of  raw
                           materials,   commodities, supplies, products or other
                           personal property,  or for the furnishing or  receipt
                           of  services  requiring  payments  by  Quantime  or
                           Subsidiary in excess of $25,000  per annum, excluding
                           employment agreements; or

                  (iv)     any  agreement  concerning  a  partnership  or  joint
                           venture.

         (b) Quantime has previously made available to SPSS a true,  correct and
complete copy of each of the Contracts.  Quantime has not materially breached or
has not caused to exist a material default under any of the Contracts and to the
best of the Quantime Insiders' knowledge,  there is no basis for any valid claim
or default in any  respect  under any of the  Contracts.  Except as set forth in
Schedule 5.16, none of the Contracts contains a clause in respect of a change of
control of Quantime.

         (c) Except as set forth on the Schedule 5.14 hereto,  neither  Quantime
nor  Subsidiary  has  given  any  power  of  attorney   (whether   revocable  or
irrevocable) to any individual or entity.

         (d) All of the  Contracts are valid and binding  obligations  of either
Quantime or Subsidiary, enforceable in accordance with their respective terms to
the extent  permitted  by  applicable  law, and are in full force and effect and
complied with. Except as set forth on Schedule 5.14, to the best of the Quantime
Insiders'  knowledge,  no other party to any of the  Contracts  is in default or
breach thereof.

         (e)  True  and  correct  copies  of each  standard  form  customer  and
distributor  contract currently in use by each of Quantime and Subsidiary in the
conduct of its businesses have been provided to SPSS.

         5.15  Source  Code.  Except  as set  forth in  Schedule  5.15,  each of
Quantime and Subsidiary owns all rights, title and interest in and to the source
codes for all of its  software  products and has not  distributed  any copies of
such  source  codes to any third  parties,  except for copies of the source code
relating to products which are now obsolete, and neither Quantime nor Subsidiary
has agreed to pay to any  individual or entity any royalty,  commission or other
amount on account of sales of their software products.

         5.16  Licenses  and  Royalties.  Except as set forth on  Schedule  5.16
hereto,  neither  Quantime  nor  Subsidiary  is a  licensee  under any  license,
including, without limitation,  licenses with respect to source codes used or to
be used in either Quantime's or Subsidiary's software products,  and neither has
an  obligation  to pay  royalties  to any third party in  connection  therewith.
Neither  Quantime nor  Subsidiary  has granted to any  individual  or entity any
rights or  security  interests  with  respect  to the  source  codes for  either
Quantime's or Subsidiary's  software products.  Quantime has not breached in any
material respect and has not caused to

                                     - 19 -

<PAGE>



exist a  material  default  under  any  such  licenses  and,  to the best of the
Quantime Insiders'  knowledge,  there is no basis for any valid claim or default
in any respect  under such  licenses  and no other party is in breach or default
thereof.

         5.17 Technical  Documentation.  The source code, system  documentation,
statements or principles of operation,  and schematics made available to SPSS by
Quantime and Subsidiary  relating to the software products currently  maintained
or licensed by either Quantime or Subsidiary constitutes all of the source code,
system documentation,  statements or principles of operation and schematics held
by Quantime or Subsidiary relating to the software products currently maintained
or licensed by either Quantime or Subsidiary (the "Technical Documentation").

         5.18 Third-Party Components in Software Programs.  Each of Quantime and
Subsidiary  has validly and  effectively  obtained the right and license to use,
copy,   modify  and  distribute  any   third-party   programming   and  software
documentation  materials  contained  in  each  of  Quantime's  and  Subsidiary's
software  products and the  Technical  Documentation  pursuant to licenses  from
third parties as set forth in Schedule 5.18.

         Except as otherwise  provided in Schedule 5.18,  each of Quantime's and
Subsidiary's software products and the Technical Documentation contains no other
programming or materials in which any third party may claim  superior,  joint or
common ownership, including any right or license, and, do not contain derivative
works of any  programming  or  materials  not owned in their  entirety by either
Quantime or Subsidiary.

         5.19 Third-Party  Interests or Marketing  Rights in Software  Programs.
The contracts,  agreements,  licenses or other  commitments or  arrangements  in
effect with respect to the development,  marketing, distribution,  licensing, or
promotion of either  Quantime's or Subsidiary's  software  products or any other
inventory,  the Technical  Documentation,  or either  Quantime's or Subsidiary's
Intellectual Assets with any independent salesperson,  distributor, sublicensor,
or other remarketer or sales organization which have been made available to SPSS
constitute all of such contracts,  agreements,  licenses or other commitments or
arrangements in effect with respect to the development, marketing, distribution,
licensing,  or promotion of either Quantime's or Subsidiary's  software products
or any other inventory,  the Technical  Documentation,  or either  Quantime's or
Subsidiary's Intellectual Assets with any independent salesperson,  distributor,
sublicensor, or other remarketer or sales organization.

         5.20  Software  Security  Warranties.  Except  as set forth in a letter
dated as of the date hereof to the Senior Vice President; Product Development of
SPSS,  the  software  products  of  Quantime  and  Subsidiary  are  free  of any
passwords,  keys, security devices or trap doors, and any computer  instructions
(including,  but not limited to, computer  instructions  commonly referred to as
Trojan Horses,  anomalies,  worms,  self-destruct  mechanisms,  or time bombs or
logic bombs) which are  intended to interfere  with or frustrate  the use of the
software products,  any portion thereof, or other software or computer hardware,
whether or not currently in effect with respect to any copy of either Quantime's
or Subsidiary's software products.

                                     - 20 -

<PAGE>




         5.21  Non-Infringement.  Quantime's and Subsidiary's  software products
and any licenses by Quantime or Subsidiary or other rights connected  therewith,
express or implied,  will not infringe any other person's  intellectual property
rights.

         5.22 Government Contracts.  Except as set forth in a letter dated as of
the date hereof from Quantime to the Senior Vice President-Corporate Operations,
Chief Financial Officer and Secretary of SPSS, the Quantime Insiders do not have
knowledge of any acts,  omissions or noncompliance with regard to any applicable
public contracting statute,  regulation or contract requirement (whether express
or  incorporated  by reference) to any contracts  relating to either Quantime or
Subsidiary,  its  businesses or any of its assets with any  Government  Contract
Party (as  defined  below) in either  case that have led to or could lead to (a)
any claim or dispute involving either Quantime or Subsidiary, its businesses, or
any of its  assets  and any  Government  Contract  Party or (b) any  suspension,
debarment or contract  termination,  or proceeding related thereto. The Quantime
Insiders  have no  knowledge  of any act or omission  related to the  marketing,
licensing,  or selling of any software related to either Quantime or Subsidiary,
or its business  that has led to or could have any material  adverse  affects on
either  Quantime's  or  Subsidiary's  rights  or on any of  its  assets.  All of
Quantime's and Subsidiary's  development of technical data and computer software
was developed exclusively at private expense. For purposes of this Section 5.22,
the term "Government  Contract Party" means any independent or executive agency,
division,  subdivision, audit group or procuring office of any governmental body
including,  without  limitation,  the United  States or United  Kingdom  federal
government,  any prime contractor of the United States or United Kingdom federal
government  and any higher  level  subcontractor  of a prime  contractor  of the
United States or United Kingdom federal government,  and including any employees
or agents thereof, in each case acting in such capacity.

         5.23 Product  Warranties and Liabilities.  Except as stated in Schedule
5.9(o) and Schedule 5.14,  neither Quantime nor Subsidiary has given or made any
express or implied  warranties  (except for implied  warranties  that may not be
disclaimed  pursuant to applicable  law) with respect to any products  licensed,
distributed,  offered  or sold or  services  performed  by them,  except for the
limited warranties stated in standard form customer  contracts,  previously made
available to SPSS, with modifications  that, in the aggregate,  would not have a
material adverse effect on business,  prospects or financial condition of either
Quantime or Subsidiary.  The Quantime  Insiders do not have any knowledge of any
fact or of the  occurrence  of any event  forming  the basis of any  present  or
future claim against either Quantime or Subsidiary, whether or not fully covered
by insurance,  for  liability on account of products  liability or on account of
any express or implied  product  warranty,  except for warranty  obligations and
product  returns in the ordinary course of business and as set forth in Schedule
5.23.

         5.24 Insurance.  Schedule 5.24 hereto is a description of all insurance
policies held by each of Quantime and Subsidiary  concerning  their  businesses,
operations and properties,  true, complete and correct copies of which have been
previously  provided  to SPSS.  Each of the  insurance  policies  referred to in
Schedule 5.24 is in force and the premiums  with respect  thereto are fully paid
through the dates indicated thereon, and nothing has been done or omitted to be

                                     - 21 -

<PAGE>



done which could make any policy of insurance  void or voidable.  No insurer has
denied coverage or reserved rights for any claim made by Quantime, Subsidiary or
any other individual or entity under any insurance policies.

         5.25 Litigation and Administrative Proceedings.  Except as set forth in
Schedule  5.25  hereto,  there  is  no  claim,   action,  suit,   proceeding  or
investigation  in any court or before any  governmental or regulatory  authority
pending or, to the best of the Quantime Insiders' knowledge,  threatened against
or affecting  either  Quantime or  Subsidiary or which seeks to enjoin or obtain
damages  in  respect  of the  transactions  contemplated  hereby.  The  Quantime
Insiders do not know of any basis for any such claim, action,  suit,  proceeding
or investigation.  To the best of the Quantime Insiders's  knowledge,  no claim,
action,  suit,  proceeding or investigation set forth in Schedule 5.25 could, if
adversely decided,  have a material adverse effect on the business,  properties,
condition   (financial  or  otherwise)  or  prospects  of  either   Quantime  or
Subsidiary.

         5.26       [Intentionally omitted.]

         5.27 Compliance with Laws. Except as set forth on Schedule 5.27 hereto,
to the best of the Quantime Insiders' knowledge, neither Quantime nor Subsidiary
has in the past been nor are either  presently  in  violation  of, in respect of
operations, real property,  machinery,  equipment, all other property, practices
and all other aspects of its businesses,  any applicable law (whether  statutory
or otherwise),  rule, regulation,  order,  ordinance,  judgment or decree of any
governmental  authority  (federal,  state,  local or  otherwise)  (collectively,
"Laws") that would have a material adverse effect on the business, properties or
condition  (financial or otherwise) of either  Quantime or  Subsidiary.  Neither
Quantime nor Subsidiary has received any notification of any asserted present or
past failure of either Quantime or Subsidiary to comply with any of such Laws.

         5.28 Environmental and Safety Matters.  (a) As to properties  described
in Schedule  5.11(a) which are located in the United States,  to the best of the
Quantime  Insiders'  knowledge,  each of Quantime and Subsidiary has complied in
all material respects with all applicable United States federal,  state or local
Laws,    regulations   or   ordinances   relating   to   environmental   matters
("Environmental  Laws")  including,  but not  limited to: air  pollution;  water
pollution;  noise control; on-site or off-site solid or hazardous waste storage,
treatment,  discharge,  disposal  or  recovery;  toxic  and  hazardous  chemical
reporting; or employee safety and hazardous material use, generation,  reliance,
transportation,  and reporting provisions. Except as set forth on Schedule 5.28,
no  notice  of  violation  of or  potential  liability  resulting  from any such
Environmental  Laws, or orders with respect thereto,  has been received,  nor to
the best of the Quantime  Insiders'  knowledge,  threatened.  No  underground or
above ground  storage tanks are or have,  to the best of the Quantime  Insiders'
knowledge,  prior to Quantime's or Subsidiary's  occupancy or possession thereof
been  located on the real  properties  described  in Schedule  5.11(a)  attached
hereto or previously  owned or operated by either  Quantime or  Subsidiary.  The
Quantime Insiders are not aware of any generation, treatment, storage, transfer,
disposal,  release or threatened release in, at, from or on such real properties
of toxic or hazardous substances by

                                     - 22 -

<PAGE>



any current or previous owner or tenant of such real  properties,  to the extent
that such is a violation of law.

                  (b) As to properties  described in Schedule  5.11(a) which are
located in the United Kingdom, and except as provided in that certain Health and
Safety Management  Evaluation Guide dated July 14, 1997,  prepared by Quantime's
insurance brokers and previously delivered to SPSS (the "Environmental Report"),
(i) Quantime has  complied,  and has adequate  facilities to continue to comply,
with all  current  legislation  (both  primary  and  secondary)  relating to the
protection  of the  environment;  (ii)  Quantime  has not  caused  or  knowingly
permitted poisonous,  noxious or polluting matter or solid waste matter to enter
controlled waters;  trade or sewage effluent to be discharged from a building or
a fixed plant; or matter to enter inland freshwaters so as to tend to impede the
proper flow of the waters in a manner leading or likely to lead to pollution, in
each case  within the meaning of section 85 of the Water  Resources  Act 1991 of
England;  (ii) Quantime has not been required to reimburse the expenses incurred
by the National  Rivers  Authority  under section 161 of the Water Resources Act
1991 of England;  (iii) Quantime has not been required to incur expenditure as a
result of pollution or contamination of any land or buildings;  (iv)Quantime has
not done or  failed  to do  anything  as a result of which it has been or may be
subject to a liability or penalty as a result of pollution or contamination;  or
has received or could  receive a  remediation  notice  under  section 78E of the
Environmental  Protection Act 1990 of England.  During Quantime's  possession or
occupancy of the properties listed on Schedule  5.11(a),  and to the best of the
Quantime Insiders' knowledge, prior to possession by Quantime of such properties
no audit has been  carried out in respect of the  properties  listed on Schedule
5.11(a) or of land previously owned or occupied by Quantime which relates to the
extent to which such properties or land previously owned or occupied by Quantime
are or might be  contaminated  or  polluted  or  liable  to cause  damage to the
environment or to living things.

         5.29     Employee Benefits.

                  5.29.1  Attached  hereto as Schedule 5.29 is a written list of
all employee  benefit plans relating to employee  benefits with respect to which
each of  Quantime  and  Subsidiary  has  incurred  or may  incur  any  future or
contingent obligations,  including, without limitation, all plans, agreements or
arrangements  relating  to  deferred  compensation,  pensions,  profit  sharing,
retirement income or other benefits,  stock purchase,  stock ownership and stock
option plans, stock appreciation rights, bonuses, severance arrangements, health
and welfare  benefits,  insurance  benefits and all other  employee  benefits or
fringe benefits (collectively referred to as the "Plans").  Each Plan is in full
force and effect.  Quantime  has  delivered  or made  available to SPSS true and
correct copies of each Plan,  each summary plan  description  relating to a Plan
and the last three  Forms  5500  which may have been filed for each Plan.  As to
Quantime's and Subsidiary's  operations in the United States,  and except as may
be indicated on Schedule 5.29 hereto,

                  (a)  neither  Quantime  nor  Subsidiary  contributes,  nor has
         either of them ever contributed,  to any multi-employer plan within the
         meaning of Section

                                     - 23 -

<PAGE>



         4001(a)(3) of the Employee  Retirement  Income Security Act of 1974, as
         amended  ("ERISA"),  nor are either  Quantime or Subsidiary  affiliated
         with any entity such that Quantime or Subsidiary  has, or might have in
         the future, any multi-employer plan withdrawal liability under Subtitle
         E of Part IV of ERISA.

                  (b) Each Plan (and each trust forming a part of such Plan) has
         been  administered  and operated in all respects in accordance with its
         terms and applicable law. Where  designated on Schedule 5.29, each Plan
         is  "qualified"  within the  meaning of Section  401(a) of the Code and
         each related trust is exempt from tax under Section 501(a) of the Code.

                  (c) With  respect  to each Plan  relating  to  Quantime's  and
         Subsidiary's  operations  in the  United  States,  no  person:  (i) has
         entered into any non-exempt  "prohibited  transaction," as such term is
         defined in ERISA and the Code; (ii) has breached a fiduciary obligation
         or violated Sections 402, 403, 405, 503, 510 or 511 of ERISA; (iii) has
         any liability for any failure to act or comply with the  administration
         or  investment  of the  assets of such  Plan;  (iv) has  engaged in any
         transactions  or otherwise  acted with respect to such Plan in a manner
         which could  subject  Quantime,  Subsidiary  or any  fiduciary  or plan
         administrator  or other  person  dealing  with such Plan,  to liability
         under  Sections  409 or 502 of ERISA or Sections  4972 or 4976  through
         4980 of the Code.

                  (d) No liability to the Pension Benefit  Guaranty  Corporation
         ("PBGC") has been, or to the best of the Quantime Insiders'  knowledge,
         is  expected  to be,  incurred  with  respect to any Plan  relating  to
         Quantime's and Subsidiary's operations in the United States, except for
         liabilities  for PBGC premiums  which may be expected to be incurred in
         the ordinary course of business. PBGC has not instituted proceedings to
         terminate  any Plan.  No  "reportable  event,"  within  the  meaning of
         Section  4043(b) of ERISA,  for which the  obligation  to report to the
         PBGC within 30 days has not been waived by the PBGC,  has occurred with
         respect to any Plan.  There exists no condition or set of circumstances
         which presents a risk of termination or partial termination of any Plan
         relating to Quantime's and Subsidiary's operations in the United States
         and which could result in a liability on the part of either Quantime or
         Subsidiary to the PBGC.

                  (e) With respect to Quantime's and Subsidiary's  operations in
         the United  States,  full  payment has been made of all  amounts  which
         either  Quantime or Subsidiary  was required  under the terms of any of
         the Plans to have paid as  contributions  to such  Plans on or prior to
         the Closing Date, and no "accumulated  funding  deficiency" (as defined
         in Section 302(a)(2) of ERISA and Section 412(a) of the Code),  whether
         or not waived, exists with respect to any such Plan.

                  (f) Other than for claims in the  ordinary  course of business
         for benefits under the Plans,  there are no actions,  suits,  claims or
         proceedings, pending or

                                     - 24 -

<PAGE>



         threatened,  nor to the best of the Quantime  Insiders'  knowledge does
         there exist any basis therefor,  which may result in any liability with
         respect  to any  Plan to  Quantime,  Subsidiary  or any  Plan or  trust
         thereof.

                  (g) The  present  value of  accrued  benefits  under each Plan
         relating to Quantime's and Subsidiary's operations in the United States
         which is  subject to Title IV of ERISA  does not  presently  exceed the
         current  value of the  assets of such Plan  allocable  to such  accrued
         benefits. For purposes of the representation in the preceding sentence,
         the terms  "current  value" and  "accrued  benefit"  have the  meanings
         specified  in Sections  3(26) and 3(23),  respectively,  of ERISA;  and
         "present  value" shall be determined  using the  actuarial  assumptions
         which  would be used by the  enrolled  actuary  for each  such  Plan in
         connection   with   determining   whether  such  Plan   satisfies   the
         requirements of Section 412 of the Code,  determined  without regard to
         Subsection (b)(5)(B) thereof.

                  (h) Except for  continuation  coverage  under  Sections 601 et
         seq.  of ERISA,  no former  employee  of  Quantime,  Subsidiary  or any
         affiliate  thereof,  nor any dependent of any such former employee,  is
         entitled to any  medical,  dental  benefits or other  welfare  benefits
         under any Plan relating to Quantime's  and  Subsidiary's  operations in
         the United States.

                  5.29.2 As to  Quantime's  operations  in the  United  Kingdom,
Quantime is under no legal  obligation,  nor is Quantime a party to an ex-gratia
arrangement, to pay pensions, gratuities, superannuation allowances or the like,
or otherwise to provide "relevant benefits" within the meaning of the Income and
Corporation  Taxes Act  ("ICTA")  s612(1),  to or for any of its past or present
officers or employees or their dependents;  and there are no retirement benefit,
or pension or death benefit,  or similar schemes or arrangements in relation to,
or binding on,  Quantime or to which Quantime has any legal or moral  obligation
to contribute.

         5.30 Licenses and Permits.  Quantime and  Subsidiary  have all material
governmental licenses and permits and other material governmental authorizations
and approvals required for the conduct of its businesses as presently  conducted
("Permits"). Schedule 5.30 hereto includes a list of all Permits.

         5.31 Relations  With  Suppliers and  Customers.  Except as set forth in
Schedule 5.31, neither Quantime nor Subsidiary nor the Quantime  Shareholders is
required to provide  any bonding or other  financial  security  arrangements  in
connection with any transaction with any customer or supplier.  Neither Quantime
nor  Subsidiary  nor the Quantime  Shareholders  has received any written notice
nor, to Quantime's knowledge,  any oral notice, that any customer or supplier of
either  Quantime or Subsidiary will cease to do business with either Quantime or
Subsidiary  or refuse to do  business  with SPSS after the  consummation  of the
transactions contemplated hereby.


                                     - 25 -

<PAGE>



         5.32 Interests in Competitors,  Suppliers and Customers.  Except as set
forth in  Schedule  5.32 and except for passive  investments  in  securities  of
publicly-traded companies, representing less than five percent of the issued and
outstanding  capital stock of such  companies,  neither  Quantime nor any of the
Quantime  Insiders nor any officer or director of Quantime or  Subsidiary or any
entity  controlled by or under common control with either Quantime or Subsidiary
has any  ownership  interest in any  competitor,  supplier or customer of either
Quantime or  Subsidiary or any property used in the operation of either of their
businesses.

         5.33 Employment Matters.  That certain letter dated September 30, 1997,
given  by the  Quantime  Insiders  to SPSS  (the  "Employment  Matters  Letter")
contains a list of all oral and written  employment or  consulting  contracts or
other agreements or arrangements providing for remuneration in excess of $75,000
per annum (or  (pound)47,500)  to which either Quantime or Subsidiary is a party
or by which either of them is bound, and all such contracts and arrangements are
in full force and effect. There have been no claims of defaults and, to the best
of the Quantime Insiders'  knowledge,  there are no facts or conditions which if
continued,  or with the giving of notice,  will result in a default  under these
contracts  or  arrangements.  Except  as set  forth on  Schedule  5.33,  neither
Quantime nor Subsidiary has registered a profit-related  pay scheme under Part V
Chapter III ICTA.  No past  employee of  Quantime or  Subsidiary  has a right to
return to work or has or may have a right to be reinstated  or re-engaged  under
the Employment Rights Act 1966 of England.

         5.34 Discrimination:  Occupational Safety; Labor. Except as provided in
Schedule 5.34, no person or party (including,  but not limited to,  governmental
agencies of any kind) has any claim,  or, to the best of the Quantime  Insiders'
knowledge,  basis for any  action or  proceeding,  against  either  Quantime  or
Subsidiary  arising out of any  statute,  ordinance  or  regulation  relating to
discrimination in employment or employment  practices or occupational safety and
health standards (including,  but without limiting the foregoing, The Fair Labor
Standards  Act,  as  amended;  Title VII of the  Civil  Rights  Act of 1964,  as
amended;  42 U.S.C. 1981 or the Age Discrimination in Employment Act of 1967, as
amended and applicable  English law),  which,  if upheld,  would have an adverse
effect  on the  assets,  properties,  businesses  or  conditions,  financial  or
otherwise, of either Quantime or Subsidiary. There is no pending or, to the best
of  the  Quantime  Insiders'  knowledge,   threatened  federal  or  state  equal
employment  opportunity  enforcement  action or labor dispute,  strike,  or work
stoppage  affecting any of businesses of either Quantime or Subsidiary.  Neither
Quantime nor Subsidiary has any collective bargaining or similar agreements, nor
do either of them have any obligation to bargain with any labor  organization as
the representative of their employees,  and there is neither pending,  or to the
best of the Quantime Insiders' knowledge,  threatened, any labor dispute, strike
or work stoppage  which affects or which may affect  Quantime's or  Subsidiary's
businesses  or which  may  interfere  with the  continued  operations  of either
Quantime  or  Subsidiary.  Except as set forth on Schedule  5.34,  no present or
former employee of either Quantime or Subsidiary has any claim against either of
them for (a)  overtime  pay,  other than  overtime  pay for the current  payroll
period,  (b) wages or salary  (excluding  bonuses  and  amounts  accruing  under
pension and profit sharing plans) for any period other than the current  payroll
period, (c)

                                     - 26 -

<PAGE>



vacation,  time off or pay in lieu of vacation or time off, or (d) any  material
violation of any statute,  ordinance or regulation  relating to minimum wages or
maximum hours of work.

         5.35 Related  Transactions.  Except as set forth in Schedule  5.35, and
that certain letter agreement of even date herewith  between SPSS,  Quantime and
Edward Ross (the "Ross  Letter")  neither  Quantime nor  Subsidiary is currently
bound under any loan, contract, lease, commitment,  arrangement or understanding
with any of its  officers,  directors,  employees,  shareholders  or any  entity
controlled by or under common control with either Quantime or Subsidiary, except
normal compensation arrangements with officers,  directors and employees, all of
which are  terminable  by  Quantime or  Subsidiary  on not more than six months'
notice.  Except as set forth in Schedule 5.35,  neither  Quantime nor Subsidiary
has been a party to a  transaction  to which s320 or s330 of the  Companies  Act
1985 of England may apply.  No contract of service  exists  between  Quantime or
Subsidiary and a director or employee in relation to which the  requirements  of
s319 Companies Act 1985 of England have not been fulfilled.

         5.36 Brokers and Finders.  Neither  Quantime,  nor  Subsidiary  nor the
Quantime Insiders (nor any of their respective officers,  directors,  employees,
affiliates,  associates,  or family members), has employed any broker, finder or
investment  banker  or other  similar  person or entity  who is  entitled  to be
compensated in connection with this Agreement or the  transactions  contemplated
hereby.

         5.37  Questionable  Payments.  Neither  Quantime nor Subsidiary nor the
Quantime Insiders,  nor any director,  officer,  agent, employee or other person
associated  with or  acting  on behalf of  either  Quantime  or  Subsidiary  has
directly or indirectly: (a) used any corporate funds for unlawful contributions,
gifts,  entertainment or other unlawful expenses relating to political activity;
(b) made any  unlawful  payment  to  government  officials  or  employees  or to
political  parties or campaigns from corporate funds; (c) violated any provision
of the Foreign Corrupt Practices Act of 1977, as amended or similar English law;
(d)  established  or  maintained  any unlawful or  unrecorded  fund of corporate
monies or other assets;  (e) intentionally made any false or fictitious entry on
the books or records of  Quantime  or  Subsidiary;  (f) made any bribe,  payoff,
influence payment,  kickback or other unlawful payment; or (g) made any bribe or
other payment of a similar or comparable nature to any person or entity, private
or  public,  regardless  of form,  to obtain  favorable  treatment  in  securing
business or to obtain special concessions or treatment.

         5.38 Books and  Records.  The books and records of each of Quantime and
Subsidiary  have been  maintained in  accordance  with  commercially  reasonable
business  and  bookkeeping  practices  and  accurately  reflect in all  material
respects the business, assets, properties, rights, obligations,  liabilities and
operations of each of Quantime and Subsidiary.

         5.39 Bank Accounts; Safe Deposit Boxes. Schedule 5.39 hereto sets forth
the names and locations of all banks in which either  Quantime or Subsidiary has
accounts or safe deposit  boxes and the names of all persons  authorized to draw
thereon or to have access thereto.


                                     - 27 -

<PAGE>



         5.40 Effect of Certificates. All representations and warranties made in
certificates  delivered by or on behalf of Quantime and the Quantime Insiders at
the Closing shall be deemed to be additional  representations  and warranties of
Quantime and the Quantime Insiders, respectively.

         5.41  Accounting  Matters.  To  the  best  of  the  Quantime  Insiders'
knowledge,  neither  Quantime nor Subsidiary nor the Quantime  Shareholders  has
through  the date of this  Agreement  taken or  agreed to take any  action  that
(without giving effect to this Agreement, the transactions  contemplated hereby,
or actions relating thereto,  or any taken or agreed to be taken by SPSS), based
upon  information or advice provided in writing to Quantime by KPMG Peat Marwick
LLP,  would  prevent SPSS from  accounting  for the business  combination  to be
effected hereby as a pooling of interests.  Quantime has provided information as
requested to KPMG Peat Marwick LLP regarding  Quantime's  ability to qualify for
pooling  of  interests  accounting  relating  to the  transactions  contemplated
hereunder including, without limitation, the amounts and timing of salary, bonus
and other  payments made by Quantime  during 1995,  1996 and 1997.  The Quantime
Insiders  presently  believe that the condition  precedent  contained in Section
11.5 hereof will be satisfied.

         5.42 Material  Misstatements or Omissions.  To the best of the Quantime
Insiders'  knowledge,  no  representation  or warranty by either Quantime or the
Quantime Insiders in this Agreement nor any documents, exhibits, certificates or
schedules  furnished to SPSS in connection with the closing of the  transactions
contemplated hereby, contains or will contain any untrue statement of a material
fact,  or omits or will omit to state any  material  fact  necessary to make the
statements or facts  contained  therein not misleading as of the date when made.
The copies of all  documents  furnished to SPSS  hereunder are true and complete
copies of the originals thereof in all material respects.

         5.43 Qualification of Representations.  Each of the representations and
warranties  in this  Article V are  qualified  and  supplemented  by each of the
schedules hereto.

         5.44 Directors,  Managers and Close Relatives. Based on the information
set forth in Schedule  5.4,  the  Quantime  Insiders  believe  that the Quantime
Shareholders  under this Agreement are either  directors or managers of Quantime
or close relatives of the same, in each case within the meaning of The Financial
Services Act 1986 (Investment Advertisements)  (Exemptions) (No.2) Order 1995 of
England ("Article 5").

          5.45  Knowledge.  As used in this  Article  V, the  terms  "know"  and
"knowledge"  mean: (i) the actual knowledge of each of the Quantime  Insiders as
to such  facts or  matters,  (ii)  such  facts or  matters  of which  any of the
Quantime  Insiders have become aware in the ordinary course of performing  their
duties for  Quantime,  including  through  investigations  made by the  Quantime
Insiders in the ordinary  course of performing  their duties for  Quantime,  and
(iii) such other facts or matters as reasonably should have been known by Edward
Ross,  Norman  Grunbaum  or Richard  Kottler  under all  relevant  circumstances
considering his involvement in the affairs of Quantime.

                                     - 28 -

<PAGE>





                                   ARTICLE VI

                     REPRESENTATIONS AND WARRANTIES OF SPSS

         SPSS represents and warrants to Quantime and the Quantime  Shareholders
as follows:

         6.1  Organization  and  Qualification.   SPSS  is  a  corporation  duly
organized,  validly existing and in good standing under the laws of the State of
Delaware and has the corporate  power and authority to enter into this Agreement
and to consummate the transactions contemplated hereby.

         6.2  Authority.  The execution  and delivery of this  Agreement and the
consummation of the transactions  contemplated hereby have been duly and validly
authorized by SPSS and, no other  corporate  proceedings on the part of SPSS are
necessary  to  authorize  this  Agreement  or  to  consummate  the  transactions
contemplated  hereby.  This  Agreement  has been duly and validly  executed  and
delivered by SPSS and constitute legal, valid and binding agreements of SPSS.

         6.3 Consents and Approvals.  There is no authorization,  consent, order
or approval of, or notice to or filing with, any  individual or entity  required
to be  obtained  or given  in order  for  SPSS to  consummate  the  transactions
contemplated hereby and fully perform its obligations hereunder.

         6.4 Absence of Conflicts.  The execution,  delivery and  performance by
SPSS of this Agreement (including,  without limitation,  the offering,  issuance
and  sale  of the  Acquisition  Stock)  and  the  consummation  by  SPSS  of the
transactions  contemplated hereby will not, with or without the giving of notice
or the lapse of time, or both, (i) violate any provision of law,  statute,  rule
or regulation to which SPSS is or was subject,  (ii) violate any order, judgment
or decree which is or was  applicable to SPSS or (iii)  conflict with, or result
in a breach or  default  under,  any term or  condition  of the  Certificate  of
Incorporation  or By-Laws of SPSS or any agreement or other  instrument to which
SPSS is a party or by which SPSS is bound.

         6.5  Capitalization.  The authorized  capital stock of SPSS consists of
50,000,000  shares of Common Stock, of which,  as of the date hereof,  7,774,357
shares were issued and  outstanding  and  9,463,472  shares would be issued on a
fully  diluted  basis upon the  exercise  of all  outstanding  options and other
rights to acquire Common Stock of SPSS. All the issued and outstanding shares of
Common  Stock are validly  issued,  fully paid and  nonassessable.  There are no
options,  warrants or other rights, agreements or commitments obligating SPSS to
issue shares of its capital stock except for stock options to purchase shares of
Common Stock  pursuant to various SPSS option plans and  agreements and employee
rights to purchase Common Stock pursuant to SPSS' employee stock purchase plans.

         6.6  Reports and Financial Statement. SPSS has filed all forms, reports
and other disclosure documents required to be filed with the SEC since December 
31, 1996, including (i)

                                     - 29 -

<PAGE>



Annual Report on Form 10-K for the fiscal year ended December 31, 1996, (ii) its
Quarterly Reports on Form 10Q for the quarters ended March 31 and June 30, 1997;
(iii)  definitive proxy statement for the 1997 annual meeting of stockholders of
SPSS;  and  (iv)  each  other  report  or  document  provided  generally  to the
stockholders  of SPSS since December 31, 1996, or  incorporated  by reference in
public filings by SPSS since such date (collectively the "SPSS Reports").  As of
their respective dates, each SPSS Report (i) complied as to form in all material
respects with the  applicable  requirements  of the  Securities  Exchange Act of
1934, as amended (the "Exchange  Act"), and (ii) to the best of SPSS' knowledge,
did not on the date of filing or the date as of which  information  is set forth
therein,  contain  any untrue  statement  of a material  fact or omit to state a
material fact required to be stated  therein or necessary to make the statements
therein,  in  light  of the  circumstances  under  which  they  were  made,  not
misleading.  The audited and unaudited consolidated financial statements of SPSS
(the "SPSS  Financial  Statements")  included or  incorporated by reference into
such SPSS Reports  have been  prepared in  accordance  with  generally  accepted
accounting  principles applied in a consistent basis (except as may be indicated
therein or in the notes  thereto) and fairly  present the financial  position of
SPSS and its consolidated subsidiaries, as of the dates thereof, and the results
of their operations and changes in financial position for the periods then ended
subject, in the case of the unaudited financial  statements,  to normal year-end
adjustments  which are not  materially  adverse.  SPSS is currently  eligible to
register the resale of the SPSS Common Stock by the Quantime  Shareholders  with
the SEC on Form S-3.

         6.7  Litigation  and  Administrative  Proceedings.  There is no  claim,
action,   suit,   proceeding  or  investigation  in  any  court  or  before  any
governmental or regulatory authority pending or, to the best of SPSS' knowledge,
threatened  against or affecting SPSS or which seeks to enjoin or obtain damages
in respect of the transactions  contemplated  hereby. SPSS does not know or have
any reason to know of any basis for any such claim, action, suit,  proceeding or
investigation.

         6.8 Brokers and  Finders.  Neither  SPSS nor its  officers,  directors,
employees,  affiliates,  associates  or family  members has employed any broker,
finder or investment  banker,  who is entitled to be  compensated  in connection
with this Agreement or the transactions contemplated hereby.

         6.9  Acquisition  Stock.  The  Acquisition  Stock,  when  delivered  in
accordance with this Agreement, shall be duly authorized,  validly issued, fully
paid and nonassessable.

         6.10 Pooling of Interests Accounting. SPSS has consulted with KPMG Peat
Marwick LLP, as its independent  auditors,  regarding the ability to qualify for
pooling  of  interests  accounting  relating  to the  transactions  contemplated
hereunder. Such auditors have not stated to SPSS any material doubt that pooling
of  interests  accounting  will be available  with  respect to the  transactions
contemplated hereunder.  SPSS believes that the condition precedent contained in
Section 11.5 hereof will be satisfied.


                                     - 30 -

<PAGE>



         6.11  Dividends and  Distributions.  From December 31, 1996 to the date
hereof, SPSS has not declared or paid any dividends on any shares of its capital
stock nor has it made any other payments or distributions to its stockholders.

         6.12 NASDAQ Authorization.  The SPSS Common Stock to be issued pursuant
to this  Agreement  will, on the date  required by NASDAQ,  be registered on the
NASDAQ Stock Market's National Market, subject to official notice of issuance.

         6.13  Material  Misstatements  or  Omissions.  To  the  best  of  SPSS'
knowledge,  the SPSS Reports,  together with the private placement memorandum to
be delivered to the  Shareholders by SPSS in connection with this Agreement,  do
not as of the date  hereof,  and will not, as of the Closing  Date,  contain any
untrue statement of a material fact, or omit any material fact necessary to make
the  statements or facts  contained  therein not  misleading as of the date when
made.

         6.14 Directors,  Managers and Close Relatives. Based on the information
set forth in Schedule 5.4, SPSS  believes that the Quantime  Shareholders  under
this Agreement are either  directors or managers of Quantime or close  relatives
of the same within the meaning of Article 5.

          6.15  Knowledge.  As used in this  Article  VI,  the terms  "know" and
"knowledge" mean: (i) the actual knowledge of each of the Executive  Officers of
SPSS as to such facts or matters, (ii) such facts or matters of which any of the
Executive  Officers  of  SPSS  have  become  aware  in the  ordinary  course  of
performing their duties for SPSS,  including through  investigations made by the
Executive Officers of SPSS in the ordinary course of performing their duties for
SPSS, and (iii) such other facts or matters as reasonably should have been known
by the Executive Officers of SPSS under all relevant  circumstances  considering
their involvement in the affairs of SPSS.

                                   ARTICLE VII


         7.1  Distribution of Placement  Memorandum and Related  Material.  Each
Quantime  Shareholder  agrees not to  distribute  or show the private  placement
memorandum  (together  with the  attachments  thereto)  to any  other  person or
entity.


                                  ARTICLE VIII

                     COVENANTS OF THE QUANTIME SHAREHOLDERS

         The Quantime Shareholders, jointly and severally, covenant as follows:


                                     - 31 -

<PAGE>



         8.1 Consents and Approvals. The Quantime Shareholders, individually and
on  behalf  of  Quantime,  agree  to use all  reasonable  efforts  to  make  all
registrations,  filings  and  applications,  and give all notices and obtain all
governmental and other consents,  approvals, orders,  qualifications and waivers
necessary  for the  consummation  of the  transactions  contemplated  by, or the
performance  by  Quantime  and  the  Quantime   Shareholders  of  any  of  their
obligations under, this Agreement,  or which may become reasonably  necessary or
desirable in connection  with any of the foregoing,  in each case upon terms and
conditions  reasonably  satisfactory  to SPSS  and  its  counsel.  The  Quantime
Shareholders  waive  any  pre-emption  rights  and  rights of first  refusal  in
relation to the Shares, whether under the Articles of Association of Quantime or
otherwise.

         8.2  Closing  Returns.  To  the  extent  Closing  Returns  (hereinafter
defined) are required under the laws of the United States or the United Kingdom,
the Quantime Shareholders will cooperate with SPSS to file on a timely basis all
income tax returns of Quantime  and  Subsidiary  due after the Closing  Date and
attributable to periods ending on or before the Closing Date,  including without
limitation,  United  States  federal  and state and  United  Kingdom  income tax
returns for the short period ending on the Closing Date (the "Closing Returns").
SPSS shall  direct the  preparation  and filing of the Closing  Returns,  to the
extent same are so required;  provided,  however, that the Quantime Shareholders
shall be  responsible  for  paying  any  taxes to the  extent  of the  indemnity
therefor.

         8.3      Access to Information.

         (a) The  Quantime  Insiders,  individually  and on behalf of  Quantime,
shall allow SPSS to have complete  access at all reasonable  times to Quantime's
officers,  employees,  agents, properties,  books and records, and shall furnish
SPSS all financial,  operating and other data and  information as SPSS,  through
its officers, employees or agents, may reasonably request.

         (b) No investigation  pursuant to this Section 8.3 shall affect, add to
or subtract from any  representations  or  warranties  or the  conditions to the
obligations of the parties hereto to effect the Acquisition.

         8.4 Cost of Shares.  Upon request by SPSS,  the  Quantime  Shareholders
will provide SPSS with information relating to, and including, the consideration
paid  by the  Quantime  Shareholders  for  the  Shares  owned  by  the  Quantime
Shareholders at the time of acquisition of such Shares.

         8.5 Further  Assurances.  The Quantime  Shareholders shall from time to
time,  at the  request  of SPSS and  without  further  cost or  expense to SPSS,
execute and deliver such other documents and take such other actions as shall be
reasonably  necessary  or  appropriate  to  consummate  fully  the  transactions
contemplated hereby.

         8.6 Power of Attorney.  Pending the entry of SPSS onto Quantime's share
register,  each of the Quantime  Shareholders  will grant to SPSS an irrevocable
power of attorney to

                                     - 32 -

<PAGE>



exercise all rights  relating to the Shares to the same extent and with the same
effect as if SPSS had been entered on such share register.


                                   ARTICLE IX

                                COVENANTS OF SPSS

         SPSS covenants as follows:

         9.1 Retention of Records.  After the Closing Date, SPSS will retain all
of  Quantime's  and  Subsidiary's  books  and  records  in their  possession  in
accordance  with SPSS' policies for retention of its own books and records,  and
upon reasonable notice and during SPSS' regular business hours and at reasonable
intervals,  will provide the Quantime Shareholders,  and their respective agents
and  representatives  designated  in writing,  access to such books and records,
concerning periods prior to the Closing Date.

         9.2  Further  Assurances.  SPSS  shall  from time to time  execute  and
deliver such other  documents and take such other actions as shall be reasonably
necessary or  appropriate  to  consummate  fully the  transactions  contemplated
hereby.

         9.3  Release  of  Guarantee.  SPSS  shall use  commercially  reasonable
efforts  to  secure  the  release  of  Edward  Ross  from his  guarantee  of the
obligations  of Quantime  with respect to the mortgage loan obtained by Quantime
to finance the acquisition of real property located at 67 Maygrove Road, London;
provided,  however,  in the event SPSS is unable to secure  such  release,  SPSS
shall  indemnify  Edward Ross with respect to his  obligations  thereunder.  The
Quantime  Shareholders shall cooperate with SPSS in SPSS' efforts to secure such
release.

         9.4 Sales  Tax.  SPSS  shall use  commercially  reasonable  efforts  to
collect from Quantime customers previously  uncollected New York state sales and
use tax and other previously  uncollected state sales and use tax where Quantime
is not currently in compliance.

         9.5 Cooperation-Audits.  In connection with the preparation of returns,
audit  examinations and any administrative or judicial  proceedings  relating to
tax liabilities  imposed on Quantime or the Subsidiaries (or either of them) for
pre-Closing  periods,  SPSS and the Quantime  Insiders will cooperate fully with
each other,  SPSS shall promptly notify the Quantime  Insiders of any inquiries,
claims or  assessments,  audits  or  similar  events  with  respect  to taxes in
relation  to  pre-Closing  periods.  SPSS  shall  have  exclusive  authority  to
represent  the  interests of Quantime and the  Subsidiaries  with respect to any
proceeding  before  any  taxing  authority  or any court and shall have the sole
right to extend or waive the statute of limitations  and to control the defense,
compromise or resolution  of any Quantime tax matters.  However,  SPSS shall not
enter into any settlement of any contest or otherwise  compromise any issue that
affects or may affect the tax liability of the Quantime Insiders with respect to
any  pre-Closing  period  without  the prior  written  consent  of the  Quantime
Insiders, which consent shall not be unreasonably

                                     - 33 -

<PAGE>



withheld.  SPSS shall allow the Quantime  Insiders to observe any proceeding and
shall  keep the  Quantime  Insiders  reasonably  informed  with  respect  to the
commencement,  status and nature of any Quantime tax matters. SPSS shall in good
faith allow the Quantime Insiders to make comments to SPSS regarding the conduct
of or positions taken in any such proceeding.

         9.6 Offer to Quantime Shareholders Who Are Not Directors,  Managers and
Close  Relatives.  Certain  English  shareholders of Quantime are not directors,
managers or close  relatives  of  directors  or managers of Quantime  within the
meaning of Article 5 (the "NonExempt Shareholders"). SPSS will offer on the same
terms and conditions as set forth herein and agrees to purchase the Shares owned
by and tendered by such Non-Exempt  Shareholders at such time as an offer may be
made to such  Non-Exempt  Shareholders  in  compliance  with  Section  57 of The
Financial Services Act 1986 of England and the registration  requirements of the
Federal and state securities laws of the United States of America. SPSS will use
all commercially  reasonable  efforts to cause such offer to be made in a prompt
manner.  SPSS covenants not to take any action that would  materially  adversely
affect the terms and conditions of such offer.



                                    ARTICLE X

                                MUTUAL COVENANTS

         Each of the parties hereto covenants as follows:

         10.1  Confidentiality.  Except as otherwise required by law or judicial
or administrative  proceedings,  including  proceedings between the parties with
respect to the  transactions  contemplated  hereby,  and then only to the extent
specifically  required by such proceedings,  and except for public announcements
on the advice of counsel,  each of the parties  agrees not to (i)  disclose  any
Confidential  Information (defined hereinbelow) of any other party, or the terms
of this  Agreement,  to any  individual  or entity  (other  than its  directors,
officers,  employees,  agents  and  representatives  with a need  to  know  such
Confidential  Information in order to consummate the  transactions  contemplated
hereby and then only if reasonable steps are taken with such parties to preserve
the  confidentiality  thereof) or (ii) use any Confidential  Information for any
purpose  other than,  with  respect to SPSS  operating  the  acquired  business.
"Confidential  Information" shall mean any secret or confidential information of
the  software  business  of  Quantime  or SPSS,  including,  but not limited to,
customer information,  financial information,  technical information, details or
information  concerning contracts,  trade secrets,  marketing information or any
other  data,  information  or  proprietary  information  of or  relating  to the
software  business  of  Quantime  or SPSS or any  affiliate  thereof,  or  their
respective products or services. No obligations shall exist under this Agreement
with respect to Confidential  Information that (i) is publicly known at the time
of the  disclosure or becomes  publicly known through no wrongful act or failure
of Quantime,  the Quantime  Shareholders  or SPSS,  (ii) is disclosed by a third
party which does not have a confidential relationship with either Quantime,

                                     - 34 -

<PAGE>



the Quantime  Shareholders or SPSS, and which was rightfully acquired by a third
party,  or (iii) is legally  compelled to be  disclosed  pursuant to a subpoena,
summons,  order or other  judicial or  governmental  process,  provided that the
parties hereto provide  prompt notice of any such  subpoena,  summons,  order or
other judicial or governmental process to such other parties of the Confidential
Information, so as to allow the parties an opportunity to oppose such process.

         10.2  Consistent Tax  Reporting.  The parties agree for tax purposes to
report  the  transactions  contemplated  by this  Agreement,  and to  treat  any
subsequent related transactions or items, in a manner consistent in all respects
with the terms and provisions of this Agreement. Each party shall cooperate with
the other parties as appropriate  for all relevant tax purposes  relating to the
transactions contemplated by this Agreement.

         10.3  Cooperation.  The  parties  agree  to  cooperate  for  all  other
reasonable  purposes  after the Closing,  including with respect to any audit by
any taxing  authority  of any of the income tax or other tax returns of Quantime
or Subsidiary.


                                   ARTICLE XI

             CONDITIONS TO OBLIGATIONS OF THE QUANTIME SHAREHOLDERS

         The  obligations  of  the  Quantime   Shareholders  to  consummate  the
transactions  contemplated  hereby is subject to the satisfaction on or prior to
the Closing Date of the following conditions:

         11.1  Representations  and  Warranties.  SPSS  shall  certify  that the
representations  and  warranties of SPSS shall be true and accurate on and as of
the  Closing  Date  with the same  effect  as though  such  representations  and
warranties had been made on and as of such date.

         11.2  Performance.  SPSS shall have performed in all material  respects
all covenants and agreements required by this Agreement to be performed by it on
or before the Closing Date.

         11.3 Filings;  Consents:  Waiting Periods. All registrations,  filings,
applications,  notices, transfers,  consents, approvals, orders, qualifications,
waivers and other actions listed on Schedule 6.3 hereto or otherwise required of
any persons or governmental  authorities or private  agencies in connection with
the consummation of the transactions contemplated by and the performance by SPSS
of its obligations under this Agreement shall have been made or obtained and all
applicable waiting periods shall have expired or been terminated.

         11.4 No Injunction.  At the Closing Date, there shall be no injunction,
restraining  order or decree of any nature of any court or governmental  body in
effect  which  restricts  or  prohibits  the  consummation  of the  transactions
contemplated by this Agreement.


                                     - 35 -

<PAGE>



         11.5  Pooling.  No  action  shall  have  been  taken by any  government
authority or any statute,  rule,  regulation or order,  promulgated or issued by
any  governmental  authority,  or any  proposal  made for any such action by any
governmental  authority which is reasonably  likely to be put into effect,  that
would prevent SPSS from accounting for the transactions  contemplated  hereunder
as a pooling of interests.

         11.6 Legal  Opinion.  The  Quantime  Insiders  shall have  received the
written opinion,  dated the Closing Date, of Ross & Hardies substantially in the
form attached hereto as Exhibit B.

         11.7 Median Closing Price.  The median  per-share  closing price of the
Common Stock during the 20-day  period  immediately  preceding  the Closing Date
shall be 24-1/2 or greater.

         11.8  Prior  Acquisition(s).  SPSS  shall  have held on or prior to the
Closing of the transaction referenced in this Agreement Shares consisting of the
voting  stock of  Quantime,  which  shares,  together  with the Shares  acquired
hereto, exceed 75% of the total voting stock of Quantime.



                                   ARTICLE XII

                        CONDITIONS TO OBLIGATIONS OF SPSS

         The  obligation of SPSS to  consummate  the  transactions  contemplated
hereby is subject to the  satisfaction  on or prior to the  Closing  Date of the
following conditions:

         12.1  Representations  and  Warranties.  The  Quantime  Insiders  shall
certify as of the Closing Date that the  representations  and  warranties of the
Quantime  Insiders shall be true and accurate on and as of the Closing Date with
the same effect as though such  representations  and warranties had been made on
and as of such date.

         12.2 Performance. The Quantime Shareholders shall have performed in all
material respects all covenants and agreements  required by this Agreement to be
performed by it on or before the Closing Date.

         12.3 Filings:  Consents;  Waiting Periods. All registrations,  filings,
applications,  notices, transfers,  consents, approvals, orders, qualifications,
waivers and other actions of any kind listed on Schedule 5.5 hereto or otherwise
required  of any  persons or  governmental  authorities  or private  agencies in
connection with the  consummation of the  transactions  contemplated by, and the
performance  by the  Quantime  Shareholders  of  their  obligations  under  this
Agreement  shall have been made or obtained and all applicable  waiting  periods
shall have expired or been  terminated,  in each case upon terms and  conditions
reasonably satisfactory to SPSS.

                                     - 36 -

<PAGE>




         12.4 No  Litigation.  No  action,  suit or  proceeding  shall have been
instituted by any person or entity, or threatened by any governmental  agency or
body,  before  a  court  or  governmental  body,  to  restrain  or  prevent  the
consummation  of the  transactions  contemplated  by, or the  performance by the
Quantime  Shareholders of their obligations under, this Agreement or which seeks
other relief with respect to any of such  transactions or which could reasonably
be expected to have a materially  adverse effect on the  businesses,  results of
operations,  assets,  financial  condition or  prospects  of either  Quantime or
Subsidiary. At the Closing Date, there shall be no injunction, restraining order
or decree of any  nature of any court or  governmental  agency or body in effect
which restrains or prohibits the consummation of the  transactions  contemplated
by this Agreement.

         12.5 Legal Opinion. SPSS shall have received the written opinion, dated
the  Closing  Date,  of  Thompson  Hine & Flory LLP,  substantially  in the form
attached hereto as Exhibit C.

         12.6 Due Diligence Investigation.  SPSS shall have no duty to close the
transactions contemplated hereby if:

                  (a) any one of the following  shall have a net negative effect
of $250,000 or more and the Quantime  Insiders  have not cured such net negative
effect to a level below  $250,000  before the Closing Date,  provided,  however,
that any such lower amount shall be included in the  aggregate  amount set forth
in Section  12.6(b)  hereof:  (i) the net  negative  impact of current  customer
cancellations  which have a revenue  impact on Quantime's  budget;  (ii) the net
negative impact of customer  cancellations  reasonably  expected to occur in the
future;  (iii)  the  aggregate  of  uncollectible  accounts  receivable,  net of
reserves; (iv) the aggregate of unexpected expenses not identified on Quantime's
budget for fiscal year 1998;  (v)  operating  income for the most recent  period
available at the Closing Date as compared to  Quantime's  budget for fiscal year
1998;  or (vi) any  single  breach of a  representation,  warranty  or  covenant
contained in this Agreement; or

                  (b)  the  total  of all  breaches  of the  Quantime  Insider's
representations,  warranties or covenants contained herein plus the net negative
impact of items (i), (ii),  (iii),  (iv) and (v) in  Subparagraph  12.6(a) above
shall have an  aggregate  of  $500,000 or more in  negative  effect,  net of any
positive effects not reflected on Quantime's  budget, and Quantime has not cured
such net negative effect to a level below $500,000 before the Closing Date; or

                  (c)  the  tax  accruals  reflected  in  Quantime's   financial
statements  for fiscal year 1996/1997  (other than amounts  relating to New York
state and other state sales and use taxes and state income taxes where  Quantime
is not in  compliance,  and interest and  penalties  relating  thereto up to and
including  March 31, 1997),  are at least $100,000 lower than the amount of such
accruals that should have been made.

         12.7  Pooling.  SPSS shall have  received  from KPMG Peat Marwick LLP a
letter dated as of the Closing Date, in form and substance reasonably acceptable
to SPSS,  and stating  that the  transactions  to be effected  hereunder  may be
accounted for as a pooling of interests by SPSS

                                     - 37 -

<PAGE>



for purposes of its consolidated  financial  statements under generally accepted
accounting principles and applicable SEC rules and regulations.  No action shall
have been taken by Quantime, the Quantime Shareholders, any government authority
or any  statute,  rule,  regulation  or  order,  promulgated  or  issued  by any
governmental  authority,  or any  proposal  made  for  any  such  action  by any
governmental  authority which is reasonably  likely to be put into effect,  that
would prevent SPSS from accounting for the transactions  contemplated  hereunder
as a pooling of interests.

         12.8  Affiliates  and  Certain  Stockholders.  (a) Prior to the Closing
Date,  the Quantime  Insiders  shall  deliver to SPSS a letter  identifying  all
persons  who  are   "affiliates"   of  Quantime  for   purposes  of   applicable
interpretations  regarding the  pooling-of-interests  method of accounting.  The
Quantime  Insiders  shall use its best  efforts  to cause  each  such  person to
deliver  to  SPSS  on  or  prior  to  the  Closing  Date  a  written   agreement
substantially in the form attached as Exhibit D hereto. If the Acquisition would
otherwise qualify for pooling-of-interests  accounting treatment, shares of SPSS
Common  Stock  issued to such  affiliates  of Quantime in exchange for Shares of
Quantime shall not be transferable until such date as financial results covering
at least thirty (30) days of  post-Acquisition  combined  operations of SPSS and
Quantime have been  published  within the meaning of Section 201-01 of the SEC's
Codification of Financial Reporting Policies (such date is hereinafter  referred
to as the "Earnings  Release  Date"),  regardless of whether each such affiliate
has provided the written  agreement  referred to in this Section 12.8, except to
the extent permitted by, and in accordance with,  Accounting  Series Release 135
and  Staff  Accounting  Bulletins  65 and 76.  Any  Shares  of SPSS held by such
affiliates  shall  not be  transferable  prior  to the  Earnings  Release  Date,
regardless  of whether each such  affiliate  has provided the written  agreement
referred to in this  Section  12.8,  if such  transfer,  either  alone or in the
aggregate with other  transfers by  affiliates,  would preclude SPSS' ability to
account for the  business  combination  to be effected by the  Acquisition  as a
pooling of interests.  The Quantime  Insiders shall not cause or permit Quantime
to  register  the  transfer of any  certificate  representing  capital  stock of
Quantime, unless such transfer is made in compliance with the foregoing.  Except
as provided in Section  4.1 hereof,  SPSS shall not be required to maintain  the
effectiveness  of any  registration  statement  under the Securities Act for the
purposes of resale of the SPSS Common Stock by such affiliates.

         12.9 Delivery. At the Closing, the documents referenced in Article XIII
shall be delivered to SPSS.

         12.10 Median Closing Price. The median  per-share  closing price of the
Common Stock during the 20-day  period  immediately  preceding  the Closing Date
shall be 37-1/2 or less.

         12.11 Meeting of Quantime Board of Directors.  SPSS shall have received
minutes of  Quantime's  board of  directors  with  respect to a meeting  held in
accordance  with  applicable  law and  Quantime's  Articles of  Association  and
Memorandum of  Association  at which meeting such persons as SPSS  nominates are
appointed additional directors,  the stock transfers referred to in Section 13.1
hereof are approved  (subject to stamping) and the  resignations  referred to in
Section 13.7 are approved.

                                     - 38 -

<PAGE>




                                  ARTICLE XIII

                               CLOSING DELIVERIES

         The following deliveries shall be made at the Closing:

         13.1 Delivery of Share  Certificates and Stock Transfers.  The Quantime
Shareholders  shall deliver to SPSS bearer  warrants in respect of the Warrants,
the share  certificates  and related  signed  stock  transfers in respect of the
other Shares.

         13.2  Delivery of Deed of Covenant  and other  Closing  Documents.  The
Quantime  Shareholders  shall  deliver to SPSS the executed Deed of Covenant and
Stock  Pledge and Escrow  Agreement,  and all other  instruments  and  documents
required hereunder.

         13.3 Legal Opinions.  The Quantime Insiders shall cause to be delivered
to SPSS the written legal opinion of Thompson Hine & Flory LLP, in substantially
the form  attached  hereto as  Exhibit C. SPSS shall  cause to be  delivered  to
Quantime the written legal opinion of Ross & Hardies,  in substantially the form
attached hereto as Exhibit B.

         13.4 Consents. The Quantime Insiders shall deliver to SPSS all consents
and  approvals  required in  connection  with the  performance  by the  Quantime
Shareholders  of their  respective  obligations  under  this  Agreement  and the
consummation  by the  Quantime  Shareholders,  Quantime  and  Subsidiary  of the
transactions contemplated hereby and thereby. SPSS shall deliver to Quantime all
consents and approvals  required in connection  with the  performance by SPSS of
its  obligations  under  this  Agreement  and  the  consummation  by SPSS of the
transactions contemplated hereby and thereby.

         13.5 Closing  Certificates.  The Quantime  Insiders shall  deliver,  or
cause to be delivered,  to SPSS such closing  certificates and documents as SPSS
and its counsel shall  reasonably  request.  SPSS shall deliver,  or cause to be
delivered,  to Quantime such closing  certificates and documents as Quantime and
its counsel shall reasonably request.

         13.6 Charter: Good Standing  Certificates.  The Quantime Insiders shall
cause to be delivered to SPSS Quantime's  Memorandum of Association,  as amended
to the  Closing  Date,  and as  filed  with  the  United  Kingdom  Registrar  of
Companies, as well as from each other jurisdiction in which Quantime is required
to be qualified.  The Quantime  Insiders  shall cause  Subsidiary to deliver its
Certificate of Incorporation certified by the Secretary of State of the State of
Delaware,  as well as good standing and tax certificates (to the extent such tax
certificates are issued from such jurisdictions generally) from the Secretary of
State of the States of Delaware and Ohio, and each other  jurisdiction  in which
Subsidiary  is  incorporated  and qualified to do business.  Mexican  Subsidiary
shall  deliver  Articles of  Incorporation  (or its  equivalent as issued in the
jurisdiction of its  incorporation),  certified by the appropriate  authority in
the  jurisdiction  of its  incorporation,  as  well  as  good  standing  and tax
certificates  (or their  equivalent)  (to the extent such tax  certificates  are
issued from such jurisdiction generally), and

                                     - 39 -

<PAGE>



from each other  jurisdiction  in which  Mexican  Subsidiary  is qualified to do
business.  SPSS  shall  deliver  Articles  of  Incorporation  certified  by  the
Secretary  of State of the State of Delaware,  as well as good  standing and tax
certificates from the Secretary of State of the States of Delaware and Illinois.

         13.7 Resignations of Quantime's Officers and Directors. SPSS shall have
received such  resignations from such officers and directors of Quantime and the
Subsidiaries,  as  SPSS  shall  request  under  seal  and in  such  form as SPSS
reasonably  requires,  confirming  that they have no claim  against  Quantime or
Subsidiary in any form whatsoever, excluding claims for compensation in ordinary
course of business, operative as of the Closing Date.

         13.8 Covenant Not To Compete.  The Quantime  Insiders shall execute and
deliver to SPSS Covenants Not To Compete in  substantially  the form attached as
Exhibit E.

         13.9 Company  Records.  Quantime's  Insiders  shall deliver to SPSS the
statutory  books  of  account  and  documents  of  record  of  Quantime  and the
Subsidiaries,  complete  and up to date,  and their  certificates  and common or
corporate  seals,  the title deeds to all real estate  owned by Quantime and the
Subsidiaries  (or any of them),  the documents of title  relating to investments
owned by each of them,  the current  checkbooks  of each of them,  together with
current  statements of all bank accounts and the appropriate  forms to amend, in
such manner as SPSS  requires,  the  mandates  given to the relevant  bank,  and
written  confirmation  from the Quantime  Insiders  that there are no subsisting
guarantees given by Quantime or the Subsidiaries (or either of them) in favor of
the Quantime  Insiders and that,  after complying with the succeeding  sentence,
none of the Quantime  Insiders will be indebted to Quantime or the  Subsidiaries
(or either of them).  The  Quantime  Shareholders  shall  repay,  or cause to be
repaid,  all amounts owing on the Closing Date to Quantime and the  Subsidiaries
from the  directors of any of them and from the Quantime  Shareholders,  whether
due for payment or not.

         13.10 Unconditional  Consent of Directors.  The Quantime Insiders shall
deliver to SPSS,  in form and  substance  reasonably  satisfactory  to SPSS,  an
unconditional   consent  in  writing  of  all  the   directors  of  Quantime  in
substantially the form attached hereto as Exhibit F.

         13.11  Resolutions  of Certain  Quantime  Shareholders.  Each  Quantime
Shareholder  that is not an individual or is not acting  individually and on his
or her own  behalf,  shall  execute and  deliver to SPSS  certified  resolutions
authorizing  the  execution and delivery by such  Quantime  Shareholder  of this
Agreement and the documents  related  thereto,  and performance by such Quantime
Shareholder of the transactions contemplated hereby and thereby.

          13.12 Further  Assurances.  Each party shall  deliver,  or cause to be
delivered,  all other documents required to be delivered by it at the Closing to
the other  party and shall take all other  actions  which the other  parties may
reasonably  determine  necessary or appropriate in order to consummate fully the
transactions contemplated hereby.



                                     - 40 -

<PAGE>




                                   ARTICLE XIV

                          SURVIVAL AND INDEMNIFICATION

         14.1  Survival  of  Representations  and  Warranties:   Covenants.  All
representations and warranties  contained herein or made in writing by any party
in connection  herewith  shall survive the Closing Date until the earlier of the
first  anniversary  of the Closing Date or the Audit Release Date. All covenants
contained herein shall survive until performed fully.

         14.2     Indemnification.

         (a) Subject to and as modified by  Sections  14.2(b) and  14.2(c),  the
Quantime  Insiders  agree to indemnify and hold SPSS and its  affiliates and the
respective officers, directors, employees, agents and representatives of each of
the foregoing  (collectively,  the "Representatives")  harmless from and against
31.2902%  any  and all  costs,  expenses,  losses,  claims,  damages,  interest,
penalties,  fines,  liabilities  and  obligations  whenever  arising or incurred
(including,   without   limitation,   amounts  paid  in  settlement,   costs  of
investigation  and attorneys'  fees and expenses)  (individually,  a "Loss," and
collectively,  "Losses")  arising  out of or  relating  to (i) any breach of any
representation  or  warranty  made by the  Quantime  Insiders  and (A) set forth
herein or in any related schedule or (B) set forth in any closing certificate or
other document entered into or delivered by the Quantime  Insiders in connection
with this  Agreement and  identified in Article XIII hereto;  (ii) any breach of
any covenant, obligation or agreement of the Quantime Insiders contained in this
Agreement,  or set forth in any closing  certificate or other  document  entered
into or  delivered  in  connection  with this  Agreement;  (iii) any  fraudulent
representation  or  intentional  misrepresentation  on the part of the  Quantime
Insiders;  notwithstanding  the  foregoing,  in the  event of any such  fraud or
misrepresentation  by any Quantime  Insider,  the Quantime Insider who committed
same shall indemnify the Representatives with respect thereto, and the remaining
Quantime  Insiders,  provided  they did not directly or  indirectly  commit such
acts, shall not be liable under this Section  14.2(A)(iii),  and (iv) successful
assertion  by  any  third  party  of  rights  relating  to  the  conception  and
development  of  the  Intellectual  Assets  on  behalf  of  either  Quantime  or
Subsidiary,  the  failure  of  either  Quantime  or  Subsidiary  to  hold  full,
effective, exclusive and original ownership of all intellectual property thereby
arising,  or the  failure of either  Quantime  or  Subsidiary  to have  received
executed  appropriate  instruments of assignment,  in full force and effect,  in
favor of  either  Quantime  or  Subsidiary,  as  assignee,  conveying  to either
Quantime  or  Subsidiary  full,   effective  and  exclusive   ownership  of  all
intellectual property thereby arising; (v) any and all tax liability of Quantime
associated with or resulting from Quantime's  prior actions relating to payments
in kind and  independent  contractors;  and (vi) any tax liability or obligation
asserted  against  Quantime or SPSS and arising out of or related to tax periods
ending on or prior to the fiscal year ended March 31, 1997 or  Quantime's or the
Quantime Insiders' actions or omissions.

         (b)  Subject  to  Section  14.2(c),  the  Quantime  Insiders  agree  to
indemnify and hold SPSS and its affiliates and Representatives harmless from and
against any and all Losses  relating to (i) any Taxes of or incurred by Quantime
for any taxable year or other period up to and

                                     - 41 -

<PAGE>



including  the fiscal year ended March 31,  1996;  (ii) any New York State sales
and use taxes,  other state sales and use taxes and related  state  income taxes
where Quantime is not in compliance, interest and penalties on the foregoing for
periods up to and  including  March 31, 1997 to the extent that 31.2902% of such
amounts  exceed  $125,160.80  net of the tax benefit of such state sales and use
taxes,  interest  and  penalties  (excluding  the tax benefit on 31.2902% of the
first  $78,225.50  of such  expense);  (iii) any Taxes,  interest and  penalties
assessed  against  Quantime  with  respect to  payments  made to an  independent
contractor or consultant of Quantime,  if such payments are  recharacterized  by
any taxing  authority as payments  made by Quantime in respect of an  employment
relationship  with  Quantime,  except  for any  taxes  owing in  respect  of the
National  Health  Insurance  of  England;  and  (iv)  the  disallowance  of  any
deductions  taken  by  Quantime  in  relation  to  any  Plan.  For  purposes  of
Subparagraph  14.2(a)(vi)  or  this  Subparagraph  14.2(b),  in the  case of any
taxable period  beginning before and ending after the Closing Date, for purposes
of determining the amount of liability for Taxes  attributable to the portion of
the  taxable  period  ending on or before the Closing  Date:  (A) in the case of
sales,  use,  payroll or excise  Taxes or Taxes based upon or related to income,
such portion of the taxable period shall be deemed to be a separate taxable year
and the  Shareholders'  liability shall include actual  liability of Quantime as
well as the impact on Quantime of disallowances  and loss of Reliefs,  and shall
be  determined by taking into account all items of income,  gain,  consideration
for  supplies  of goods  and  services,  loss,  deduction  or  credit on a basis
consistent  with that  employed in  preparing  the federal  income tax return of
Quantime for the taxable year ending on the Closing Date and the relevant  state
or local tax return for prior  years,  and (B) in the case of other  Taxes,  the
Quantime Insiders' liability shall equal a pro-rata portion of the liability for
taxes (which shall include actual liability of Quantime as well as the impact on
Quantime of  disallowances  or loss of reliefs)  for the entire  taxable  period
based on the  ratio of the  number of days from the  beginning  of such  taxable
period  through the Closing  Date to the total  number of days  included in such
taxable period.

         (c) The aggregate of all indemnities to be provided to SPSS pursuant to
this Article XIV (an "Indemnification Payment") shall not exceed an amount equal
to ten percent  (10%) of the Total  Shares  (the "Cap") and any  Indemnification
Payment to be made to SPSS shall be satisfied solely out of the Escrowed Shares.
Except as otherwise  specifically  set forth herein,  the indemnity  provided in
this Agreement  shall not apply until the cumulative  amount of all Losses shall
exceed  $31,290.20 in the aggregate (the  "Basket").  If the Basket is exceeded,
SPSS shall be  entitled  to the  excess,  if any, of the full amount of all such
claims over the Basket, subject to the Cap.  Notwithstanding the foregoing,  the
Basket and the Cap shall not apply to the indemnities provided in this Agreement
for breach of any  confidentiality  obligation  contained herein or in any other
closing document, or any fraud, willful misconduct, gross negligence or criminal
action  on the part of  Quantime,  and  notwithstanding  anything  contained  or
implied in this Agreement,  the indemnity  obligations set forth herein above in
this sentence shall survive the Closing without limitation except as provided by
the applicable  statute of limitations  (including any extension of said statute
of  limitations);  provided,  however,  that  the Cap  shall  not  apply  to any
liability  under  Subparagraph  14.2(b)(ii)  (although the Basket shall apply to
such liability under Subparagraph  14.2(b)(ii)),  and the indemnity  obligations
set forth in Subparagraph  14.2(b)(ii) shall survive the Closing for a period of
twelve months. In addition, the indemnity

                                     - 42 -

<PAGE>



provided for in  Subparagraph  14.2(b)(ii)  shall be paid with SPSS Common Stock
valued at the closing  price of SPSS Common Stock on September  30, 1997, to the
extent Quantime Shareholders hold such stock, otherwise in cash. Indemnification
Payments to be made hereunder  relating to tax  liabilities of Quantime shall be
paid to SPSS in amounts equal to such liability, subject to the terms hereof.

         (d) The Quantime  Insiders  shall have no  indemnification  obligations
with  respect to tax amounts  attributable  to (i) the period from April 1, 1997
until the Closing Date, or (ii) fiscal year ended March 31, 1997.

         (e) None of the information  supplied by Quantime or the  Subsidiaries,
or their  professional  advisors to the  Quantime  Shareholders  or the Quantime
Insiders, or their respective agents, representatives or advisors, in connection
with this Agreement,  the  representations  and warranties  (including,  without
limitation,  the contents of the schedules and exhibits hereto), or otherwise in
relation to the business or affairs of Quantime and the  Subsidiaries,  shall be
deemed  a  representation  as  to  the  accuracy  thereof  by  Quantime  or  the
Subsidiaries  (or either of them) to the Quantime  Shareholders  or the Quantime
Insiders  (or any of  them),  and the  Quantime  Shareholders  and the  Quantime
Insiders waive the claims against Quantime and the Subsidiaries which they might
otherwise have with respect thereto.

         14.3  Indemnification  by SPSS.  SPSS agrees to indemnify  and hold the
Quantime  Insiders and its affiliates and the  respective  officers,  directors,
employees, agents and representatives of each of the foregoing harmless from and
against any and all Losses relating to (i) any breach of any  representation  or
warranty of SPSS set forth  herein or in any related  schedule,  or set forth in
any closing  certificate or other document  entered into or delivered by SPSS in
connection with this Agreement;  (ii) any breach of any covenant,  obligation or
agreement of SPSS contained in this  Agreement or in any other closing  document
and (iii) any fraudulent representation or intentional  misrepresentation on the
part of SPSS,  unless the claim or cause of action with respect  thereto  arises
out of or is related  to  actions  or  omissions  of  Quantime  or the  Quantime
Insiders prior to the Closing Date. Any  indemnification  made by SPSS hereunder
shall be in SPSS Common Stock,  valued at the closing price of SPSS Common Stock
on September 30, 1997.

         14.4  Indemnification  Procedure.  (a) An indemnified  party under this
Article XIV shall give prompt written notice to the indemnifying party (when and
to the extent that the indemnified  party has actual  knowledge  thereof) of any
condition,  event or  occurrence  or the  commencement  of any  action,  suit or
proceeding  for  which  indemnification  may  be  sought,  and  through  counsel
reasonably  satisfactory  to the  indemnified  party,  shall  assume the defense
thereof or other  indemnification  obligation  with respect  thereto;  provided,
however, that any indemnified party shall be entitled to participate in any such
action,  suit  or  proceeding  with  counsel  of its own  choice  but at its own
expense; and provided,  further, that any indemnified party shall be entitled to
participate  in any such  action,  suit or  proceeding  with  counsel of its own
choice at the expense of the indemnifying  party, if, under applicable canons of
ethics, joint representation of the indemnifying party and the indemnified party
presents a conflict of interest.

                                     - 43 -

<PAGE>




         In any event,  if the  indemnifying  party  fails to assume the defense
within a reasonable time, the indemnified party may assume such defense or other
indemnification obligation and the reasonable fees and expenses of its attorneys
will be covered by the  indemnity  provided for  hereunder.  No action,  suit or
proceeding  for which  indemnification  may be sought  shall be  compromised  or
settled  in any  manner  which  might  adversely  affect  the  interests  of the
indemnifying  party without the prior written consent of the indemnifying  party
(which  shall  not  be  unreasonably  withheld);  provided,  however,  that  the
indemnified  party  may  settle  any  claim  or  cause  of  action  without  the
indemnifying  party's consent, but in such case the indemnifying party shall not
be required to reimburse the indemnified  party for its Losses except and to the
extent that the results of  arbitration,  conducted in  accordance  with Section
14.5  hereof,   determines  that  the  indemnifying  party  must  indemnify  the
indemnified party therefor. Notwithstanding anything in this Section 14.4 to the
contrary, the indemnifying party shall not, without the prior written consent of
the indemnified  party, (i) settle or compromise any action,  suit or proceeding
or  consent  to  the  entry  of  any  judgment  which  does  not  include  as an
unconditional  term  thereof the  delivery by the  claimant or  plaintiff to the
indemnified  party of a written  release  from all  liability in respect of such
action,  suit or  proceeding or (ii) settle or  compromise  any action,  suit or
proceeding  in  any  manner  that  may  materially  and  adversely   affect  the
indemnified  party  other  than as a result  of  money  damages  or other  money
payments.  The indemnifying party shall pay all expenses,  including  attorneys'
fees, that may be incurred by any  indemnified  party in enforcing the indemnity
provided for hereunder.

         (b) In the case of any proposed or actual assessment of tax liabilities
for which SPSS is  entitled to  indemnification  from the  Quantime  Insiders as
provided in Section  14.2(b),  SPSS shall give  written  notice to the  Quantime
Insiders as provided in subparagraph  (a) hereof and shall contest such proposed
or actual  assessment  through the  administrative  review or appeal  procedures
available under the relevant tax laws and regulations,  provided,  however, that
SPSS shall not be required to contest such proposed or actual  assessment unless
the Quantime  Insiders shall first provide an opinion of counsel or of a firm of
independent  outside auditors,  reasonably  acceptable to SPSS, stating that the
Quantime  Insiders have a reasonable  basis for their position.  SPSS shall keep
the Quantime  Insiders fully informed as to the progress of such contest.  If at
any point prior to the termination of the  administrative  review  process,  the
Quantime  Insiders  notify  SPSS in  writing  that they are  willing to accept a
settlement  proposed by the IRS or the Inland Revenue,  as the case may be, with
respect to such  proposed or actual  assessment  of tax  liabilities,  SPSS will
settle the  proposed or actual tax  assessment,  and SPSS shall  immediately  be
entitled to indemnification from the Quantime Insiders. If the Quantime Insiders
never elect to request SPSS to settle and such administrative  review process is
unsuccessful  at eliminating the proposed tax, SPSS shall be entitled to pay the
tax (and any penalties and interest) and be entitled to indemnification from the
Quantime Insiders;  provided,  that if within ten (10) days of receipt from SPSS
of notice that it is paying the tax, the Quantime  Insiders notify SPSS of their
desire to contest the proposed or assessed  tax  deficiency  in the courts,  the
Quantime  Insiders  shall be entitled to do so provided that (a) if the proposed
or actual tax deficiency is contested in tax court, the Quantime  Insiders shall
pay from  their  own  sources  any  amount  of  taxes,  penalties  and  interest
determined  to be due  and (b) if the  proposed  or  actual  tax  deficiency  is
contested by suit for refund in any other court, funds shall be provided to SPSS
and SPSS shall

                                     - 44 -

<PAGE>



pay the tax and if the  outcome  of the  contest  determines  that  the tax paid
should be refunded,  such refund shall be returned to the Quantime Insiders. Any
contest (whether during the administrative review process or otherwise) shall be
conducted at the sole cost and expense of the Quantime Insiders.

         14.5  Arbitration.  Any dispute as to any claims  under this  Agreement
shall  be  settled  by  arbitration  in  the   Wilmington,   Delaware  by  three
arbitrators,  one of whom shall be appointed by the  Quantime  Insiders,  one by
SPSS and the third of whom shall be appointed by the first two  arbitrators.  If
either  party  fails to  appoint  an  arbitrator  within 30 days of a request in
writing by the other party to do so or if the first two arbitrators cannot agree
on the appointment of a third  arbitrator  within 20 days of their  designation,
then such arbitrator  shall be appointed by the Chief Judge of the United States
District  Court for the  District of  Delaware.  Except as to the  selection  of
arbitrators  which  shall  be as set  forth  above,  the  arbitration  shall  be
conducted   promptly  and   expeditiously  in  accordance  with  the  commercial
arbitration  rules of the American  Arbitration  Association so as to enable the
arbitrators  to  render  an  award  within  90 days of the  commencement  of the
arbitration proceedings. Judgment upon the award rendered by the arbitrators may
be  entered  in  any  court  having  jurisdiction  thereof.  The  costs  of  the
arbitration and the arbitrator  shall be allocated as provided in the results of
the arbitration.

         14.6 Treatment as Adjustment of Purchase Price.  Any indemnity  payment
received by a party  hereunder shall be treated as an adjustment of the purchase
price.  However, in the event that the Internal Revenue Service,  Inland Revenue
or any other taxing authority determines that such indemnity payment constitutes
taxable gain or income to the indemnified  party, the  indemnifying  party shall
increase the amount otherwise required to be paid so that the indemnified party,
receives,  on an  after-tax  basis,  an amount equal to the amount it would have
received had the indemnity not resulted in taxable gain or income.

         14.7 Limited  Remedies.  SPSS shall have no cause of action against the
Shareholders  for matters  arising out of the sale to SPSS of Shares of Quantime
other than the contractual  remedies contained herein or in ancillary  documents
executed and delivered in connection with the transactions  contemplated hereby,
and claims  sounding  in fraud,  misrepresentation  under  United  States  laws,
equitable  estoppel and promissory  estoppel.  SPSS acknowledges that it has not
been  induced  to enter into this  Agreement  by any  representation,  warranty,
promise or  assurance  by the  Quantime  Insiders or any other person other than
those  specifically  contained  in  this  Agreement  or in  ancillary  documents
executed and delivered in connection with the transaction contemplated hereby.

                                     - 45 -

<PAGE>



                                   ARTICLE XV

                        TERMINATION, AMENDMENT AND WAIVER

         15.1  Termination.  This Agreement may be terminated at any time prior 
to the Closing Date:

         (a) by mutual consent of the parties hereto;

         (b) by the  Quantime  Insiders  or SPSS  if a  material  breach  of any
provision  of this  Agreement  has been  committed  by the other  party and such
breach is not waived by the nonbreaching party;

         (c) by SPSS, if the conditions set forth in Section XI hereof shall not
have  been  complied  with  or  performed  in  any  material  respect  and  such
noncompliance or  nonperformance  shall not have been cured or eliminated (or by
its nature cannot be cured or eliminated) by the Quantime  Insiders on or before
October 31, 1997; or

         (d) by the Quantime  Insiders,  if the  conditions set forth in Section
XII  hereof  shall not have been  complied  with or  performed  in any  material
respect and such  noncompliance or  nonperformance  shall not have been cured or
eliminated  (or by its nature cannot be cured or  eliminated)  by SPSS or before
October 31, 1997; or

         (e) by either SPSS or the Quantime  Insiders if the  Acquisition  shall
not have been  consummated  on or before  October 31, 1997 or such later date as
the parties hereto agree in writing.

         15.2  Effect  of  Termination.  In the  event  of  termination  of this
Agreement as provided  above,  this Agreement  shall  hereafter  become void and
there shall be no  liability or further  obligation  on the part of the Quantime
Shareholders  or SPSS or its  officers  or  directors,  except  as set  forth in
Section 10.1 and Section  16.3 and except that  nothing  herein will relieve any
party from liability for breach of this Agreement.


                                     - 46 -

<PAGE>



                                   ARTICLE XVI

                                  MISCELLANEOUS


         16.1  Amendment  and  Modification.  Subject to  applicable  law,  this
Agreement may be amended,  modified and supplemented by written agreement of the
parties.  In addition,  at any time prior to Closing Date, the Quantime Insiders
may, but only with the prior  approval of SPSS,  amend the  schedules  hereto to
reflect any matter that occurs or is discovered by any of them subsequent to the
date of this Agreement.

         16.2 Waiver of Compliance.  Any failure of the Quantime Shareholders on
the one hand, or SPSS, on the other, to comply with any obligation herein may be
expressly waived hereunder, but such waiver shall not operate as a waiver of, or
estoppel with respect to, any subsequent or other failure. Any waiver must be in
writing and duly executed by the appropriate parties.

         16.3 Expenses.  Whether or not the  transactions  contemplated  by this
Agreement  shall be  consummated,  the  parties  hereto  agree that all fees and
expenses  incurred by the Quantime  Shareholders,  on the one hand, and SPSS, on
the other,  in connection with this Agreement,  and the  transactions  and other
actions contemplated thereby or taken in connection therewith, shall be borne by
the Quantime  Shareholders  (and Quantime  shall have no liability for such fees
and expenses), and by SPSS,  respectively,  including,  without limitation,  all
fees of counsel and accountants;  provided, however, that SPSS agrees to pay the
fees  incurred by KPMG Peat  Marwick LLP for any  required  audit of  Quantime's
financial  statements,  or supplementary  procedures  required for SEC reporting
purposes, as well as the fees charged by Ernst & Young relating to its review of
Quantime's liability for New York and other state sales tax. Payment of the fees
and expenses  incurred by the  Quantime  Shareholders  not to exceed  $78,225.50
shall be made by SPSS and the Total Shares shall be reduced in  accordance  with
Section 1.3 hereof.

         16.4 Notices. All notices,  requests,  demands and other communications
required or permitted  hereunder shall be in writing and shall be deemed to have
been duly given when  delivered  by hand or by facsimile  transmission  (receipt
confirmed), one day after being sent by recognized overnight courier or delivery
service,  freight  prepaid,  or five  days  after  being  mailed,  certified  or
registered mail, postage prepaid, return receipt requested:

         (a)      If to the Quantime Insiders to:

                           Edward Ross
                           c/o Thompson Hine & Flory LLP
                           312 Walnut, 14th Floor
                           Cincinnati, Ohio 45202-4029
                           Attention: Michael Oestreicher, Esq.


                                     - 47 -

<PAGE>




                           Richard Kottler
                           Grangewood, Seven Hills Close
                           Walton-on-Thames, Surrey KT124DE, ENGLAND

                           Norman Grunbaum
                           7 Northdene Gardens
                           London N15 6LX, ENGLAND

                           Louis Davidson
                           7 Roughlands
                           Pyrford, Surrey GU22 8PT, ENGLAND

                           with a copy to:

                           Thompson Hine & Flory LLP
                           312 Walnut, 14th Floor
                           Cincinnati, Ohio 45202-4029
                           Attention: Michael Oestreicher, Esq.
                           Facsimile No.:  (513) 241-4771

If to the Quantime  Shareholders,  to the  addresses  set forth on the signature
pages  hereof,  or to such other person or address as the Quantime  Shareholders
shall  furnish to SPSS in writing by notice given in the manner set forth in (a)
above.

         (b)      If to SPSS, to:

                           SPSS Inc.
                           444 North Michigan Avenue
                           Chicago, Illinois 60611
                           Attention: Mr. Edward Hamburg
                           Facsimile No.:  (312) 329-3558

                           with a copy to:

                           Ross & Hardies
                           150 North Michigan Avenue, Suite 2500
                           Chicago, Illinois 60601
                           Attention: T. Stephen Dyer, Esq.
                           Facsimile No.:  (312) 750-8600

or to such  other  person or  address  as SPSS  shall  furnish  to the  Quantime
Insiders in writing by notice given in the manner set forth above.


                                     - 48 -

<PAGE>



         16.5 Assignment.  This Agreement and all of the provisions hereof shall
be  binding  upon and  inure to the  benefit  of the  parties  hereto  and their
respective  successors and permitted assigns, but neither this Agreement nor any
of the rights,  interests or obligations  hereunder  shall be assigned by any of
the parties  hereto  without  the prior  written  consent of the other  parties,
except by  operation  of law and  except  that SPSS may  assign  its  rights and
obligations  under this  Agreement to any other entity  wholly owned by SPSS. If
such assignment  shall be made by SPSS, the assignee shall be entitled to all of
the rights and shall assume all of the obligations of SPSS hereunder,  provided,
that SPSS shall remain liable for and guarantee the performance of such entity's
obligations  under this  Agreement and shall issue to the Quantime  Shareholders
the SPSS Common Stock as provided herein.

         16.6 Publicity.  Neither the Quantime  Shareholders nor SPSS shall make
or issue, or cause to be made or issued,  any announcement or written  statement
concerning  this  Agreement  or  the   transactions   contemplated   hereby  for
dissemination  to the general  public,  without the prior written consent of the
other parties,  nor shall the Quantime  Shareholders cause or permit Quantime to
do so. This provision shall not apply,  however,  to any announcement or written
statement  required to be made by law, the  regulations  of any federal or state
governmental  agency or any stock  exchange,  except that the party  required to
make such announcement shall, whenever practicable, consult with the other party
concerning the timing and content of such announcement  before such announcement
is made.

         16.7  Headings.  The  Article and Section  headings  contained  in this
Agreement are inserted for convenience  only and shall not affect in any way the
meaning or interpretation of this Agreement.

         16.8  Severability.  If  any  provision  of  this  Agreement  shall  be
determined  to be contrary  to law and  unenforceable  by any court of law,  the
remaining provisions shall be severable and enforceable in accordance with their
terms.

         16.9 Governing  Law. This Agreement  shall be governed by and construed
in  accordance  with the laws of the State of  Delaware,  without  regard to its
conflicts of law doctrine. The parties hereto expressly submit themselves to the
non-exclusive  jurisdictions of the State and Federal Courts of Illinois for the
resolution  of any disputes  which may arise under or with respect to compliance
with this Agreement.

         16.10  Counterparts.  This Agreement may be executed  simultaneously in
two or more counterparts,  each of which shall be deemed an original, but all of
which together shall constitute one and the same instrument.

         16.11 Third  Parties.  Nothing herein shall be construed to confer upon
or give to any party  other  than the  parties  hereto and their  successors  or
permitted assigns, any rights or remedies under or by reason of this Agreement.


                                     - 49 -

<PAGE>



         16.12 References to Laws. References to particular statutes within this
Agreement,  to the extent such references  relate to laws other than the laws of
the United States or any particular  State thereof,  are intended to refer,  and
shall be construed as referring, to laws of the United Kingdom.

         16.13 Entire  Agreement.  This  Agreement,  including  the Exhibits and
Schedules  hereto,  sets forth the entire  agreement  and  understanding  of the
parties hereto in respect of the subject matter contained herein, and supersedes
all prior agreements, covenants,  representations or warranties, whether oral or
written, by any party hereto.

         16.14  Trustees.  To the  extent  signatories  hereto are  trustees  or
attorneys-in-fact,  the  parties  acknowledge  and agree that such  persons  are
executing and  delivering  this  Agreement  and  consummating  the  transactions
contemplated   hereby   solely  in  their   capacity   as  such   trustees   and
attorneys-in-fact  and not  individually,  and further,  that said  trustees and
attorneys-in-fact shall have no personal liability in connection therewith. With
respect  to  Shareholders  which are  trusts or  foundations,  claims  under the
Agreement  are  limited to trust  assets  and the  Shares  held under the Escrow
Agreement and no claims will be made against the trustees, attorneys-in-fact and
officers  acting in their capacity as such. The provisions of this Section 16.14
shall  apply  with  equal  force to and shall be deemed  to be  incorporated  by
reference in all ancillary  documents  signed by signatories who are trustees or
attorneys-in-fact and who execute any ancillary documents in connection with the
transactions contemplated by this Agreement.

         16.15 Authority of Certain Quantime Shareholders.  Each of the Trustees
of  the  Norman  Grunbaum  Discretionary  Settlement  and  the  Richard  Kottler
Discretionary Settlement,  respectively,  hereby severally represent and warrant
to SPSS on its own behalf (and the attorneys in fact  executing  and  delivering
this  Agreement  on its behalf) that it has full power,  capacity and  authority
(corporate  or  otherwise)  to  execute  and  deliver  this  Agreement,  and all
documents and instruments executed and delivered in connection therewith, and to
consummate the transactions contemplated hereby and thereby.

         16.16  Investment in the Common Stock.  As of the Closing Date, each of
the  Quantime  Shareholders  (as to himself  or herself  and not as to any other
Quantime  Shareholder):  (i) has received and carefully  reviewed  copies of the
SPSS  Reports  (hereinafter  defined);  (ii) has  evaluated,  and/or  his or her
business,  tax and/or  other legal  advisors  have  evaluated  and advised  such
Quantime Shareholder as to the merits,  disadvantages and risks of an investment
in  SPSS  Common  Stock;   (iii)  acknowledges  that,  in  reliance  upon  these
representations,  SPSS is not  registering the issuance of the SPSS Common Stock
under the Act prior to the Closing Date; (iv)  acknowledges that the SPSS Common
Stock may not be resold  except in a transaction  which is registered  under the
Act or which is exempt from such  registration  requirements  and that SPSS will
cause a legend setting forth such  restrictions to be placed on each certificate
representing  the SPSS Common Stock and will make  appropriate  notations in its
records  and the  records  of its  transfer  agent  with  respect  thereto;  (v)
recognizes the  speculative  nature of the SPSS Common Stock and is able to bear
the economic risk of the  investment he or she is making in SPSS Common Stock by
reason of the transactions contemplated by this Agreement; (vi) is acquiring

                                     - 50 -

<PAGE>



the SPSS Common Stock for his or her own account,  as principal,  for investment
purposes only and without a view to the resale,  transfer or other  distribution
thereof  except in a sale  registered  under the Act or in a transaction  exempt
from the  registration  requirements  of the Act;  (vii)  acknowledges  that the
Acquisition Stock of SPSS being acquired pursuant to the terms of this Agreement
represents  an  investment  in the  business of SPSS,  and that SPSS has made no
representations or warranties with respect to the future business performance of
SPSS or the  price  of its  Common  Stock;  and  (viii)  has  been  afforded  an
opportunity  to ask  questions  and  receive  answers  concerning  SPSS  and its
operations,  business  and  financial  condition,  the SPSS Common Stock and the
terms  and  conditions  of  this  Agreement  and  has  received  any  additional
information   concerning  SPSS  and  its  operations,   business  and  financial
condition,  the  SPSS  Common  Stock  and  this  Agreement  that  such  Quantime
Shareholder has reasonably requested.


                                     - 51 -

<PAGE>



         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed, all as of the day and year first written above.


SPSS:

SPSS INC., a Delaware corporation



By:______________________________
    Name:
    Title:


THE QUANTIME INSIDERS:



_________________________________            ________________________________
EDWARD ROSS                                  RICHARD KOTTLER



_________________________________            ________________________________
NORMAN GRUNBAUM                              LOUIS DAVIDSON




                                     - 52 -

<PAGE>



THE QUANTIME SHAREHOLDERS:



NORMAN NAFTALI GRUNBAUM AND                RICHARD ELLIS KOTTLER AND
ROSELLA GRUNBAUM, AS TRUSTEES              INGRID JEANNE KOTTLER AS
OF THE NORMAN GRUNBAUM                     TRUSTEES OF THE RICHARD
DISCRETIONARY SETTLEMENT, solely           KOTTLER DISCRETIONARY TRUST,
in their capacity as trustees, and not     solely in their capacity as trustees,
individually                               and not individually



By:______________________________          By:______________________________



By:______________________________          By:______________________________


Address:_________________________          Address:_________________________

        -----------------------                    -----------------------




_________________________________
EDWARD SHERMAN ROSS

Address:______________________

         -----------------------




_________________________________            _______________________________
LOUIS DAVIDSON                               STEPHANIE GWILLIAM

Address:______________________               Address:______________________

        -----------------------                      -----------------------



                                     - 53 -

<PAGE>









__________________________________           ________________________________
TONY LEGG                                    EVA HUZAN

Address:______________________               Address:______________________

         -----------------------                      -----------------------




__________________________________           ________________________________
MADELEINE ASHBERY                            PETER TROTMAN

Address:______________________               Address:______________________

         -----------------------                      -----------------------




__________________________________           ________________________________
ADRIAN DEWEY                                 NICK BROWN

Address:______________________               Address:______________________

         -----------------------                      -----------------------




__________________________________           ________________________________
JONATHAN CHODY                               LOUISE WEALE

Address:______________________               Address:______________________

                                                     -----------------------
        -----------------------





                                     - 54 -

<PAGE>





__________________________________           ________________________________
SUE JORDAN                                   ANNIE MCGLONE

Address:______________________               Address: _______________________

         _______________________                      _______________________
                                             



                                     - 55 -

<PAGE>



                                TABLE OF CONTENTS


ARTICLE I  TERMS OF PURCHASE AND SALE........................................ 2
         1.1      Purchase and Sale of the Shares............................ 2
         1.2      Closing.................................................... 2
         1.3      Payment of Purchase Price.................................. 2
         1.4      Tax and Accounting......................................... 3

ARTICLE II  SHAREHOLDERS' REPRESENTATIVE .................................... 3
         2.1      Designation of Shareholders' Representative................ 3
         2.2      Authorization of Shareholders' Representative.............. 3
         2.3      Replacement of Shareholders' Representative................ 3
         2.4      Decisions of Shareholders' Representative.................. 3
         2.5      Agreements Regarding Shareholders' Representative.......... 4
         2.6      Fees of Shareholders' Representative....................... 4
         2.7      No Personal Liability...................................... 4

ARTICLE III ESCROW........................................................... 5
         3.1      Escrow..................................................... 5
         3.2      Escrowed Shares............................................ 5

ARTICLE IV  SECURITIES MATTERS............................................... 5
         4.1      Registration of SPSS Common Stock.......................... 5
         4.2      Sales of SPSS Common Stock by the Shareholders............. 7
         4.3      Registration Expenses...................................... 7
         4.4      Restricted Stock........................................... 7
         4.5      Indemnification; Contribution.............................. 8
         4.6      Additional Obligations of SPSS.............................10
         4.7      Reports Under the Exchange Act.............................11

ARTICLE V  REPRESENTATIONS AND WARRANTIES OF THE QUANTIME
INSIDERS.....................................................................11
         5.1      Organization and Qualification.............................11
         5.2      Authority..................................................12
         5.3      Capitalization.............................................13
         5.4      Status of Quantime Shareholders............................14
         5.5      Consents and Approvals.....................................14
         5.6      Absence of Conflicts.......................................14
         5.7      Financial Statements:  Accounts Receivable.................14
         5.8      Absence of Undisclosed Liabilities.........................15
         5.9      Absence of Certain Changes or Events.......................15
         5.11     Real and Personal Property; Inventories....................16
         5.12     Patents, Trademarks, Etc...................................18

                                      - i -

<PAGE>



         5.13     Rights of Employees with Respect to Certain Intellectual
                  Property...................................................18
         5.14     Contracts and Commitments..................................18
         5.15     Source Code................................................19
         5.16     Licenses and Royalties.....................................20
         5.17     Technical Documentation....................................20
         5.18     Third-Party Components in Software Programs................20
         5.19     Third-Party Interests or Marketing Rights in Software
                  Programs...................................................20
         5.20     Software Security Warranties...............................21
         5.21     NonInfringement............................................21
         5.22     Government Contracts.......................................21
         5.23     Product Warranties and Liabilities.........................21
         5.24     Insurance..................................................22
         5.25     Litigation and Administrative Proceedings..................22
         5.26     Tax Matters................................................22
         5.27     Compliance with Laws.......................................24
         5.28     Environmental and Safety Matters...........................24
         5.29     Employee Benefits..........................................25
         5.30     Licenses and Permits.......................................27
         5.31     Relations With Suppliers and Customers.....................28
         5.32     Interests in Competitors, Suppliers and Customers..........28
         5.33     Employment Matters.........................................28
         5.34     Discrimination:  Occupational Safety; Labor................28
         5.35     Related Transactions.......................................29
         5.36     Brokers and Finders........................................29
         5.37     Questionable Payments......................................29
         5.38     Books and Records..........................................30
         5.39     Bank Accounts; Safe Deposit Boxes..........................30
         5.40     Effect of Certificates.....................................30
         5.41     Accounting Matters.........................................30
         5.42     Material Misstatements or Omissions........................30
         5.43     Qualification of Representations...........................30
         5.44     Directors, Managers and Close Relatives....................30
         5.45     Knowledge..................................................31

ARTICLE VI  REPRESENTATIONS AND WARRANTIES OF SPSS...........................31
         6.1      Organization and Qualification.............................31
         6.2      Authority..................................................31
         6.3      Consents and Approvals.....................................31
         6.4      Absence of Conflicts.......................................31
         6.5      Capitalization.............................................31
         6.6      Reports and Financial Statement............................32
         6.7      Litigation and Administrative Proceedings..................32
         6.8      Brokers and Finders........................................32
         6.9      Acquisition Stock..........................................32

                                     - ii -

<PAGE>



         6.10     Pooling of Interests Accounting............................33
         6.11     Dividends and Distributions................................33
         6.12     NASDAQ Authorization.......................................33
         6.13     Material Misstatements or Omissions........................33
         6.14     Directors, Managers and Close Relatives....................33
         6.15     Knowledge..................................................33

ARTICLE VII  ................................................................33
         7.1      Distribution of Placement Memorandum and Related Material..33

ARTICLE VIII  COVENANTS OF THE QUANTIME SHAREHOLDERS.........................34
         8.1      Consents and Approvals.....................................34
         8.2      Closing Returns............................................34
         8.3      Access to Information......................................34
         8.4      Cost of Shares.............................................34
         8.5      Further Assurances.........................................35
         8.6      Power of Attorney..........................................35

ARTICLE IX  COVENANTS OF SPSS................................................35
         9.1      Retention of Records.......................................35
         9.2      Further Assurances.........................................35
         9.3      Release of Guarantee.......................................35
         9.4      Sales Tax..................................................35
         9.5      Cooperation Audits.........................................35
         9.6      Offer to Quantime Shareholders Who Are Not Directors, Managers
                  and Close Relatives........................................36

ARTICLE X  MUTUAL COVENANTS..................................................36
         10.2     Consistent Tax Reporting...................................37
         10.3     Cooperation................................................37

ARTICLE XI  CONDITIONS TO OBLIGATIONS OF THE QUANTIME
SHAREHOLDERS.................................................................37
         11.1     Representations and Warranties.............................37
         11.2     Performance................................................37
         11.3     Filings; Consents: Waiting Periods.........................37
         11.4     No Injunction..............................................38
         11.5     Pooling....................................................38
         11.6     Legal Opinion..............................................38

ARTICLE XII  CONDITIONS TO OBLIGATIONS OF SPSS...............................38
         12.1     Representations and Warranties.............................38
         12.2     Performance................................................38
         12.3     Filings:  Consents; Waiting Periods........................38

                                     - iii -

<PAGE>



         12.4     No Litigation..............................................39
         12.5     Legal Opinion..............................................39
         12.6     Due Diligence Investigation................................39
         12.7     Pooling....................................................40
         12.8     Affiliates and Certain Stockholders........................40
         12.9     Delivery...................................................40
         12.10             Median Closing Price..............................40

ARTICLE XIII  CLOSING DELIVERIES.............................................41
         13.1     Delivery of Share Certificates and Stock Transfers.........41
         13.2     Delivery of Deed of Covenant and other Closing Documents...41
         13.3     Legal Opinions.............................................41
         13.4     Consents...................................................41
         13.5     Closing Certificates.......................................41
         13.6     Charter: Good Standing Certificates........................41
         13.7     Resignations of Quantime's Officers and Directors..........42
         13.8     Covenant Not To Compete....................................42
         13.9     Company Records............................................42
         13.10             Unconditional Consent of Directors................42
         13.11             Resolutions of Certain Quantime Shareholders......42
         13.12             Further Assurances................................43

ARTICLE XIV  SURVIVAL AND INDEMNIFICATION....................................43
         14.1     Survival of Representations and Warranties: Covenants......43
         14.2     Indemnification............................................43
         14.3     Indemnification by SPSS....................................45
         14.4     Indemnification Procedure..................................46
         14.5     Arbitration................................................47
         14.6     Treatment as Adjustment of Purchase Price..................47
         14.7     Limited Remedies...........................................47

ARTICLE XV  TERMINATION, AMENDMENT AND WAIVER................................48
         15.1     Termination................................................48
         15.2     Effect of Termination......................................48

ARTICLE XVI  MISCELLANEOUS...................................................49
         16.1     Amendment and Modification.................................49
         16.2     Waiver of Compliance.......................................49
         16.3     Expenses...................................................49
         16.4     Notices....................................................49
         16.5     Assignment.................................................51
         16.6     Publicity..................................................51
         16.7     Headings...................................................51
         16.8     Severability...............................................51

                                     - iv -

<PAGE>


         16.9     Governing Law..............................................51
         16.10    Counterparts...............................................51
         16.11    Third Parties..............................................52
         16.12    References to Laws.........................................52
         16.13    Entire Agreement...........................................52
         16.16    Investment in the Common Stock.............................52


                                      - v -



                            STOCK PURCHASE AGREEMENT

                                  By and Among

                                   SPSS INC.,

                  EDWARD ROSS, RICHARD KOTTLER, NORMAN GRUNBAUM
                               and LOUIS DAVIDSON
                                       and
           CERTAIN NON-U.K. SHAREHOLDERS OR WARRANTHOLDERS OF QUANTIME
                  LIMITED LISTED ON THE SIGNATURE PAGES HEREOF

                         Dated as of September 30, 1997









<PAGE>



                            STOCK PURCHASE AGREEMENT


         STOCK  PURCHASE  AGREEMENT,  dated  as  of  September  30,  1997,  (the
"Agreement"), by and among SPSS INC., a Delaware corporation ("SPSS") and EDWARD
ROSS,  RICHARD  KOTTLER,  NORMAN  GRUNBAUM,  LOUIS DAVIDSON and the shareholders
and/or warrantholders of Quantime Limited, a corporation  incorporated under the
laws of England  with  Registered  Number  1400578  ("Quantime"),  listed on the
signature pages of this Agreement (Edward Ross, Richard Kottler, Norman Grunbaum
and  Louis  Davidson  are  hereinafter  collectively  referred  to herein as the
"Quantime Insiders";  the shareholders and/or  warrantholders of Quantime listed
on the signature pages under the heading  "Quantime  Shareholders" at the end of
the Agreement are hereinafter  collectively  referred to herein as the "Quantime
Shareholders" or the "Shareholders").

                              W I T N E S S E T H:

         WHEREAS,  Quantime  is  engaged  in  the  business  of  developing  and
distributing  market research  software  encapsulating  strong data  collection,
tabulation, on-screen analysis and EIS capabilities;

         WHEREAS,  the respective  Boards of Directors of each of Quantime,  and
SPSS  have  determined  that  it is  advisable  and  for the  benefit  of  their
corporations and their respective shareholders that Quantime be acquired by SPSS
by means of the  acquisition  from the Quantime  Shareholders of the outstanding
capital  shares of  Quantime,  comprised of Class "A" 1 pence  ordinary  shares,
Class  "B" 1 pence  ordinary  shares  and  Class  "C"  US$0.01  ordinary  shares
(collectively, the "Shares") including those represented by bearer warrants (the
"Warrants") held by the Quantime  Shareholders,  all as set forth in Section 5.3
hereto,  in exchange for shares of common stock $.01 par value per share of SPSS
(the "Common Stock"), pursuant to the terms and conditions set forth herein (the
"Acquisition");

         WHEREAS, the Shareholders own of record and beneficially 65.548% of the
issued and outstanding Shares owned by the Quantime  Shareholders and all rights
to acquire such Shares pursuant to the Warrants;

         WHEREAS, for United States federal income tax purposes,  it is intended
that this  transaction  qualify  as a  reorganization  under the  provisions  of
Section  368(a)(1)(B)  of the  Internal  Revenue  Code of 1986,  as amended (the
"Code"), and that for United Kingdom taxation purposes, the transaction likewise
qualify as a reorganization (or the United Kingdom equivalent thereof) under the
provisions of applicable tax laws of the United Kingdom; and

         WHEREAS,  for United States  accounting  purposes,  it is intended that
this transaction be accounted for as a "pooling of interests".

         NOW, THEREFORE,  in consideration of the premises, the mutual covenants
and agreements contained herein, and other good and valuable consideration,  the
receipt and


<PAGE>



sufficiency  of  which  is  hereby  acknowledged,   and  in  reliance  upon  the
representations  and warranties  contained  herein,  the parties hereto agree as
follows:


                                    ARTICLE I

                           TERMS OF PURCHASE AND SALE

         1.1  Purchase  and  Sale  of  the  Shares.  Subject  to the  terms  and
conditions  contained in this  Agreement,  on the Closing  Date (as  hereinafter
defined),  the Shareholders shall sell, assign,  transfer and deliver the Shares
owned by the Quantime  Shareholders  to SPSS, and SPSS shall purchase the Shares
owned by the  Quantime  Shareholders  from the  Shareholders,  for an  aggregate
purchase  price  consisting  of the items and  amounts  set forth in Section 1.3
hereof (the "Purchase  Price") payable pursuant to the terms provided in Section
1.3 hereof. The Shareholders hereby represent, warrant and covenant that (a) the
Shareholders  own and have  good  title  to the  Shares  owned  by the  Quantime
Shareholders,   free  and  clear  of  any  lien,  pledge,  claim,   encumbrance,
restriction  or right of any third party of any kind;  (b) at the Closing,  SPSS
will acquire good title to the Shares  owned by the  Quantime  Shareholders  and
thereby  indirectly the Subsidiary  Shares  (hereinafter  defined in Section 5.3
hereof), respectively, free and clear as aforesaid, including without limitation
any of the foregoing set forth in the Memorandum of Association of Quantime; and
(c) the Shares  owned by the  Quantime  Shareholders  represent  the only equity
interest of the Shareholders in Quantime.  Each of the  Shareholders  waives any
rights of  pre-emption  and  rights of first  refusal  in  relation  to sales or
transfers of the Shares owned by the Quantime  Shareholders,  whether  under the
Articles of Association of Quantime or otherwise.

         1.2 Closing. Subject to the terms and conditions of this Agreement, the
closing of the transactions contemplated hereby (the "Closing") shall take place
at the offices of Ross & Hardies,  Chicago,  Illinois,  by 11:59  p.m.,  Central
Daylight Time, on September 30, 1997 (the "Closing Date") or such other place or
time as the parties may agree.

         1.3 Payment of Purchase Price.  Upon  satisfaction of all the terms and
conditions set forth in this  Agreement,  on the Closing Date SPSS shall deliver
the Purchase Price consisting of 584,206 shares of SPSS Common Stock (the "Total
Shares" or "Acquisition Stock") to be paid as follows (a) the Shareholders shall
receive an  aggregate  of 525,786  shares of SPSS Common  Stock to be  allocated
between the  Shareholders  as set forth in Schedule  1.3 hereof,  and (b) 58,420
shares of SPSS Common Stock (the  "Escrowed  Shares") shall be held in escrow in
accordance with Article III hereof.  Only whole shares of SPSS Common Stock will
be issued in connection with the Acquisition. In lieu of fractional shares, each
Shareholder  otherwise  entitled to a fractional share of SPSS Common Stock will
be paid in cash an amount equal to the amount of such fraction multiplied by the
closing price of SPSS Common Stock on the Closing Date. No such shareholder will
be entitled to  dividends,  voting rights or other rights in respect of any such
fractional share.


                                      - 2 -

<PAGE>



         1.4  Tax  and  Accounting.  The  parties  hereto  shall  each  use  all
reasonable  efforts  to cause  the  transactions  contemplated  hereunder  to be
treated as (i) a  reorganization  within the meaning of Section  368(a)(1)(B) of
the  Code,  and  (ii) to  qualify  for  accounting  treatment  as a  pooling  of
interests,  subject in all events to the  provisions  of Sections  6.10 and 11.5
hereof.


                                   ARTICLE II

                          SHAREHOLDERS' REPRESENTATIVE


         2.1 Designation of Shareholders' Representative. In order to administer
efficiently   (i)  the   implementation   of  the   Agreement  by  the  Quantime
Shareholders,   other  than  the  Quantime  Insiders  and  the  Joya  Charitable
Foundation ("Joya"),  (ii) the waiver of any condition to the obligations of the
Quantime   Shareholders   (other  than  Joya)  to  consummate  the  transactions
contemplated  hereby,  and (iii) the  settlement  of any dispute with respect to
this Agreement,  the Quantime  Shareholders  (other than Joya) hereby  designate
Richard Kottler as their representative (the "Shareholders' Representative").

         2.2  Authorization  of  Shareholders'   Representative.   The  Quantime
Shareholders (other than Joya) hereby authorize the Shareholders' Representative
(i) to take all action necessary in connection with the  implementation  of this
Agreement on behalf of the Quantime  Shareholders  (other than Joya), the waiver
of any condition to the  obligations  of the Quantime  Shareholders  (other than
Joya) to consummate the transactions  contemplated  hereby, or the settlement of
any  dispute,  (ii) to give and receive  all notices  required to be given under
this  Agreement,  and  (iii)  to  take  any  and  all  additional  action  as is
contemplated  to be taken by or on behalf of the  Quantime  Shareholders  (other
than Joya) by the terms of this Agreement.

         2.3 Replacement of Shareholders' Representative.  In the event (i) that
the Shareholders'  Representative dies, becomes legally incapacitated or resigns
from such position,  or (ii) upon a written consent executed by at least 66-2/3%
in  interest  (calculated  based on the  allocation  set forth in  Schedule  1.3
hereof,  notwithstanding  any subsequent change in shareholdings by way of sale,
etc.) of the Quantime  Shareholders (other than Joya), the Quantime Shareholders
(other  than  Joya)  may   designate   a   replacement   to  the   Shareholders'
Representative;  however, no change in the Shareholders' Representative shall be
effective until SPSS is given written notice of it by the Quantime  Shareholders
(other than Joya).

         2.4  Decisions  of  Shareholders'  Representative.  All  decisions  and
actions by the  Shareholders'  Representative  shall be binding  upon all of the
Quantime  Shareholders (other than Joya), and no Quantime Shareholder shall have
the right to object,  dissent,  protest or  otherwise  contest the same,  in the
absence of fraud,  gross negligence of willful  misconduct of the  Shareholders'
Representative.


                                      - 3 -

<PAGE>



         2.5  Agreements  Regarding  Shareholders'   Representative.   By  their
execution of this Agreement,  the Quantime  Shareholders (other than Joya) agree
that:

                         (i)  SPSS  shall  be able to rely  conclusively  on the
         instructions and decisions of the  Shareholders'  Representative  as to
         any  actions  required  or  permitted  to  be  taken  by  the  Quantime
         Shareholders  (other  than  Joya) or the  Shareholders'  Representative
         hereunder,  and no  party  hereunder  shall  have any  cause of  action
         against  SPSS  for  any  action  taken  by SPSS in  reliance  upon  the
         instructions or decisions of the Shareholders' Representative;

                        (ii) all  actions,  decisions  and  instructions  of the
         Shareholders'  Representative  shall be conclusive and binding upon all
         of the Quantime Shareholders (other than Joya); no Quantime Shareholder
         shall have any cause of action  against  SPSS for any  action  taken or
         omitted  to be  taken,  decision  made  or  omitted  to be  made or any
         instruction   given  or  omitted  to  be  given  by  the  Shareholders'
         Representative;  and no  Quantime  Shareholder  shall have any cause of
         action against the Shareholders'  Representative  for any action taken,
         decision made or instruction given by the Shareholders'  Representative
         under this  Agreement,  except for fraud,  gross  negligence or willful
         breach of this Agreement by the Shareholders' Representative;

                       (iii) the Shareholders' Representative shall be deemed to
         fulfill any fiduciary  obligation to the Quantime  Shareholders  (other
         than Joya) so long as no Quantime  Shareholder is adversely affected by
         any action or failure to act of the  Shareholders'  Representative in a
         disproportionate measure compared to any other Quantime Shareholder;

                        (iv)  remedies  available  at law for any  breach of the
         provisions  of this Section are  inadequate;  therefore,  SPSS shall be
         entitled to  temporary  and  permanent  injunctive  relief  without the
         necessity  of proving  damages if SPSS  brings an action to enforce the
         provisions of this Section; and

                         (v) the provisions of this Section are  independent and
         severable,  shall constitute an irrevocable power of attorney,  coupled
         with  an  interest  and  surviving  death,   granted  by  the  Quantime
         Shareholders (other than Joya) to the Shareholders'  Representative and
         shall be binding upon the executors,  heirs, legal  representatives and
         successors of each Quantime Shareholder.

         2.6  Fees  of  Shareholders'  Representative.  All  fees  and  expenses
incurred  by the  Shareholders'  Representative  shall  be paid by the  Quantime
Shareholders (other than Joya).

         2.7 No Personal Liability. The Shareholders' Representative shall incur
no personal liability with respect to any action taken or suffered by him in his
capacity as Shareholders'  Representative in reliance upon any document believed
by him to be  genuinely  and duly  authorized,  nor  (solely in his  capacity as
Shareholders' Representative) for any other action or

                                      - 4 -

<PAGE>



inaction  except his own  willful  misconduct  or  negligence,  fraud or willful
breach of this Agreement. The Shareholders' Representative may, in all questions
relating to his obligations as Shareholders'  Representative  rely on the advice
of counsel,  and the  Shareholders'  Representative  (solely in his  capacity as
Shareholders'  Representative) shall not be liable for anything done, omitted or
suffered in good faith by him to be done based upon such  advice.  The  Quantime
Shareholders   (other  than  Joya)  shall   indemnify   and  save  harmless  the
Shareholders'  Representative  from and against all losses,  costs and  expenses
which he may incur as a result of  involvement in any legal  proceeding  arising
from the performance of his duties as Shareholders' Representative hereunder.


                                   ARTICLE III

                                     ESCROW

         3.1 Escrow.  At Closing,  SPSS shall cause to be issued, in the name of
each Shareholder newly issued shares of SPSS Common Stock in accordance with the
provisions of Schedule 3.1. The Escrow Agent (as defined in the Stock Pledge and
Escrow  Agreement to be entered into between the parties  hereto and such Escrow
Agent in connection herewith) will hold in escrow for the Shareholders' account,
in the  respective  amounts  set forth on Schedule  3.1,  the  Escrowed  Shares,
together  with stock powers duly  executed in blank  attached,  in good form for
delivery.  The Escrow Agent will hold the Escrowed  Shares  subject to the terms
and conditions of Section 3.2 hereof.

         3.2 Escrowed  Shares.  Upon the Closing Date,  the  Shareholders  shall
pledge and grant a first priority  security  interest in the Escrowed  Shares to
SPSS as collateral to satisfy any  post-Closing  claims for breaches  under this
Agreement, and shall enter into a Stock Pledge and Escrow Agreement with respect
thereto  (the  "Escrow  Agreement").  The  number of  Escrowed  Shares,  if any,
remaining  after any retention  made in accordance  with this  Agreement will be
delivered to the  Shareholders,  in amounts  proportionate to the  Shareholders'
interest  in such  Escrowed  Shares,  promptly  after  delivery to SPSS of SPSS'
year-end  audited  financial  statements by SPSS'  outside  auditors (the "Audit
Release Date"),  except for the number of such Escrowed Shares then subject to a
bona fide dispute over which a party is entitled to such Escrowed Shares.


                                   ARTICLE IV

                               SECURITIES MATTERS

         4.1 Registration of SPSS Common Stock.

                  (a) SPSS  shall  prepare  and  file  with  the  United  States
Securities and Exchange  Commission  ("SEC") as soon as practicable,  subject to
review by the Quantime Shareholders

                                      - 5 -

<PAGE>



(but in no event later than 90 days after the Closing) a registration  statement
on Form S-3 and/or Form S-4, as  appropriate  (together  with all amendments and
supplements  to  any  such  registration  statement,   including  post-effective
amendments,  and  all  material  incorporated  by  reference  or  deemed  to  be
incorporated  by reference in such  registration  statement,  the  "Registration
Statement"),  under the Securities  Act of 1933,  and the rules and  regulations
promulgated  thereunder (the "1933 Act" or the "Act"), for the registration (the
"Registration")  of the  secondary  offering  of the SPSS  Common  Stock for the
account of the  Shareholders.  SPSS expects to have published  audited financial
results,  covering at least thirty (30) days of the combined  operations of SPSS
and Quantime  following  the  Acquisition,  not later than March 31, 1998.  SPSS
shall use all reasonable efforts to have the Registration  declared effective by
the SEC promptly  after  filing.  To the extent that shares of SPSS Common Stock
are not acquired by a Quantime Shareholder pursuant to an effective registration
statement on Form S-4,  SPSS shall use all  reasonable  efforts to register such
SPSS Common  Stock for sale on a delayed or  continuous  basis under Rule 415 of
the 1933 Act and,  provided  that  Form S-3 shall be  available  to SPSS for the
Registration,  to  keep  such  Registration  Statement  continuously  effective,
current and available for use by the  Shareholders  for a period of  twenty-four
(24) months  following the date of  effectiveness,  or such shorter  period that
will terminate when all of the shares of SPSS Common Stock have been sold by the
Shareholders (the "Trading Period").  While any Form S-3 Registration  Statement
remains in effect,  SPSS may at any time deliver to Shareholders  written notice
to the effect that sales may not be effected  under the  Registration  Statement
for a period  of time  (the  "Blackout  Period")  because  of the  existence  of
material facts not disclosed or incorporated  by reference in such  Registration
Statement and in the then-current  prospectus included therein;  upon receipt of
any such  notice,  Shareholders  shall  refrain  from selling any shares of SPSS
Common Stock under such  Registration  Statement until they have received notice
from SPSS to the effect that such sales may then be effected.  In no event shall
the Blackout Period be greater than any similar period of time during which SPSS
restricts any of its employees from effecting sales in SPSS Common Stock because
of the existence of material facts not disclosed or incorporated by reference in
any  then-effective  registration  statement and in the then-current  prospectus
included therein or otherwise not publicly disclosed. SPSS shall promptly update
such  Registration  Statement and the  prospectus  included  therein in order to
permit the shares of SPSS Common Stock to be sold,  and the Trading Period shall
automatically  be extended  by the  aggregate  number of days  during  which the
Shareholders were instructed to refrain from selling shares of SPSS Common Stock
during all Blackout Periods.

                  (b) The  Shareholders  shall cooperate with SPSS in connection
with the  Registration  and shall  provide  such  information  and execute  such
documents as SPSS shall reasonably  request in connection with the Registration.
The  Quantime  Insiders  shall use all  reasonable  efforts to cause  Quantime's
accountants to consent to the inclusion in the  Registration  Statement of their
report, if required,  and to assist in preparing  reconciliations  in accordance
with  generally  accepted  accounting   principles  in  the  United  States,  as
necessary.

                  (c) SPSS  shall  not  grant to any  holder  of  shares of SPSS
Common  Stock  registration  rights  which  interfere  with  the  rights  of the
Shareholders and the obligations of SPSS under this Article IV.

                                      - 6 -

<PAGE>




                  (d) Prior to the Earnings  Release Date (as defined in Section
12.8  hereof),  SPSS will not take any action for which it would be  required to
file a Form 8-K under Item 1 or Item 2 thereof.

         4.2  Sales of SPSS  Common  Stock by the  Shareholders.  If at any time
prior to the effectiveness of the Registration  Statement any Shareholder elects
to sell all or any of his shares of SPSS Common Stock,  such  Shareholder  shall
conduct such sales only through registered securities brokers ("Brokers").

         4.3 Registration Expenses.  SPSS shall be responsible for and shall pay
all fees,  costs and  expenses  incurred  by it  relating  to the  Registration,
including  without  limitation,   all  SEC  and  securities   exchange,   NASDAQ
registration  and filing fees,  and all fees and expenses of  compliance by SPSS
with the federal  securities laws or any applicable state blue sky laws, but not
including  (i) any fees and  expenses  of  Shareholders'  counsel  or  otherwise
incurred by the Shareholders,  and (ii) underwriters' fees or expenses, broker's
costs,  commissions and other similar disposition costs associated with the SPSS
Common Stock owned by any Shareholder.

         4.4  Restricted Stock.  Quantime has advised the Shareholders, and the
Shareholders inderstand and agree, as follows:

                  (a) That the shares of SPSS Common Stock to be received by the
Shareholders  pursuant  to  this  Agreement  are  not  currently  subject  to  a
registration statement under the Act, and are issued pursuant to exemptions from
registration under the Act which exemptions  depend,  among other things, on the
bona fide nature of their investment intent.

                  (b) That they shall not  transfer  the SPSS Common Stock to be
received by the  Shareholders  pursuant to this  Agreement  except in compliance
with the  provisions  of the Act. Any proposed  transferee of the shares of SPSS
Common Stock shall agree to take and hold such  securities  upon the  conditions
set forth in Section 4.4(c) hereof.

                  (c) Until such time as the shares being sold  hereunder to the
Quantime   Shareholders  may  be  sold  under  Rule  144(k),   each  certificate
representing the shares of SPSS Common Stock issued to the Shareholders shall be
stamped or otherwise imprinted with a legend in substantially the following form
(in addition to any legend required under applicable state securities laws):

                  THE SHARES  REPRESENTED BY THIS CERTIFICATE HAVE BEEN ACQUIRED
                  IN A PRIVATE PLACEMENT.  SUCH SHARES MAY NOT BE OFFERED,  SOLD
                  OR  TRANSFERRED  IN THE  UNITED  STATES IN THE  ABSENCE  OF AN
                  EFFECTIVE  REGISTRATION  STATEMENT UNDER THE SECURITIES ACT OF
                  1933 OR AN  EXEMPTION  THEREFROM  OR IN  CONTRAVENTION  OF THE
                  AGREEMENT COVERING THE PURCHASE OF THESE

                                      - 7 -

<PAGE>



                  SHARES AND RESTRICTING THEIR TRANSFER. COPIES OF THE AGREEMENT
                  MAY BE  OBTAINED  AT NO COST BY  WRITTEN  REQUEST  MADE BY THE
                  HOLDER OF RECORD OF THIS  CERTIFICATE  TO THE SECRETARY OF THE
                  COMPANY AT ITS PRINCIPAL OFFICE.

When the shares being sold  hereunder to the Quantime  Shareholders  may be sold
under the  circumstances  described  in Rule  144(k) (or any  successor  rule or
regulation)  and there exists no other  restriction on the sale of stock imposed
subsequent  to the date hereof,  SPSS will,  upon  request of the  Shareholders'
Representative,  cause SPSS' transfer  agent to exchange the shares  legended as
set forth above for unlegended shares.

                  (d) Unless a  registration  statement  under the Act  covering
transactions  in the  SPSS  Common  Stock  to be  received  by the  Shareholders
pursuant  to this  Agreement  has been  declared  effective  by the SEC and such
registration statement remains effective at the time of transfer, each holder of
shares of SPSS Common Stock to be received by the Shareholders  pursuant to this
Agreement  shall comply in all respects with the provisions of this Section 4.4.
Prior to any proposed transfer of any such securities,  the holder thereof shall
give written  notice to SPSS of such holder's  intention to effect such transfer
and shall comply with the requirements set forth in the balance of this section.
Each such notice  shall  describe the manner and  circumstances  of the proposed
transfer in reasonable detail, and shall be accompanied by (i) a written opinion
of legal  counsel who shall be  reasonably  satisfactory  to SPSS,  addressed to
SPSS, and reasonably satisfactory in form and substance to SPSS' counsel, to the
effect that the proposed  transfer of such  securities  may be effected  without
registration  under the 1933 Act, (ii) a "no action"  letter from the SEC to the
effect that the distribution of such securities  without  registration  will not
result in a  recommendation  by the staff of the SEC that  action be taken  with
respect  thereto,  or (iii)  such  other  showing  satisfactory  to SPSS and its
counsel that the proposed  transfer of such  securities may be effected  without
registration  under the 1933 Act,  whereupon the holder of such securities shall
be entitled to transfer  such  securities  in  accordance  with the terms of the
notice delivered by the holder to SPSS.

         4.5 Indemnification;  Contribution.  In the event any SPSS Common Stock
held by a Shareholder is included in a registration statement under this Article
IV:

                  (a) SPSS will  indemnify and hold  harmless such  Shareholder,
any underwriter (as defined in the Act) for such Shareholder and each person, if
any, who controls such Shareholder or underwriter  within the meaning of the Act
or the 1934 Act,  against any losses,  claims,  damages,  liabilities  (joint or
several) or expenses to which they may become  subject  under the Act,  the 1934
Act or other  federal or state law,  insofar as such  losses,  claims,  damages,
liabilities  (or actions in respect  thereof)  or  expenses  arise out of or are
based  upon  any  of  the   following   statements,   omissions  or   violations
(collectively  a  "Violation"):  (i) any  untrue  statement  or  alleged  untrue
statement of a material fact contained in such registration statement, including
any  preliminary  prospectus  or  final  prospectus  contained  therein  or  any
amendments  or  supplements  thereto,  (ii) the omission or alleged  omission to
state therein a material fact

                                      - 8 -

<PAGE>



required to be stated therein,  or necessary to make the statements  therein not
misleading,  or (iii) any violation or alleged violation by SPSS of the Act, the
1934 Act, any state securities law or any rule or regulation  promulgated  under
the Act,  the 1934 Act or any state  securities  law;  and SPSS will pay to each
such Shareholder,  underwriter or controlling person, any and all legal or other
expenses  reasonably  incurred  by  them in  connection  with  investigating  or
defending any such loss, claim, damage, liability, or action; provided, however,
that the indemnity agreement contained in this subsection 4.5(a) shall not apply
to amounts paid in settlement of any such loss, claim, damage, liability, action
or expense if such  settlement  is effected  without the consent of SPSS,  which
consent shall not be unreasonably withheld, nor shall SPSS be liable in any such
case for any such  loss,  claim,  damage,  liability,  action or  expense to the
extent  that it  arises  out of or is based  upon a  Violation  which  occurs in
reliance  upon and in  conformity  with  written  information  furnished by such
Shareholder or any controlling  person of such Shareholder  expressly for use in
connection with such registration.

                  (b) Such  Shareholder  will  indemnify and hold harmless SPSS,
each of its  directors,  each of its  officers  who has signed the  registration
statement, each person, if any, who controls SPSS within the meaning of the Act,
any underwriter, and any controlling person of any such underwriter, against any
losses, claims, damages, liabilities (joint or several) or expenses to which any
of the  foregoing  persons may become  subject,  under the Act,  the 1934 Act or
other federal or state law, insofar as such losses, claims, damages, liabilities
(or actions in respect  thereto) or expenses  arise out of or are based upon any
Violation,  in each  case to the  extent  (and  only to the  extent)  that  such
Violation  occurs in reliance  upon and in conformity  with written  information
furnished  by  such  Shareholder  expressly  for  use in  connection  with  such
registration;  and such  Shareholder  will pay, as incurred,  any legal or other
expenses reasonably  incurred by any person intended to be indemnified  pursuant
to this subsection  4.5(b),  in connection with  investigating  or defending any
such loss, claim, damage, liability,  action or expense; provided, however, that
the indemnity  agreement  contained in this subsection 4.5(b) shall not apply to
amounts paid in settlement of any such loss, claim, damage, liability, action or
expense if such settlement is effected without the consent of such  Shareholder,
which consent shall not be unreasonably withheld or delayed;  provided, that, in
no event  shall any  indemnity  under this  subsection  4.5(b)  exceed the gross
proceeds  from the offering of the shares of SPSS Common Stock  received by such
Shareholder.  SPSS  shall  make  the  Registration  Statement  available  to the
Quantime Shareholders for comment prior to the filing thereof.

                  (c) Promptly after receipt by an indemnified  party under this
Section  4.5  of  notice  of  the  commencement  of any  action  (including  any
governmental action), such indemnified party will, if a claim in respect thereof
is to be made against any indemnifying  party under this Section 4.5, deliver to
the  indemnifying  party a written  notice of the  commencement  thereof and the
indemnifying  party shall have the right to  participate  in, and, to the extent
the indemnifying  party so desires,  jointly with any other  indemnifying  party
similarly  noticed,   to  assume  the  defense  thereof  with  counsel  mutually
satisfactory  to the  parties;  provided,  however,  that an  indemnified  party
(together with all other  indemnified  parties which may be represented  without
conflict by one counsel)  shall have the right to retain one  separate  counsel,
with  the  fees  and  expenses  to  be  paid  by  the  indemnifying   party,  if
representation of such indemnified party by

                                      - 9 -

<PAGE>



the counsel retained by the indemnifying  party would be inappropriate  due to a
conflict  of  interests  between  such  indemnified  party and any  other  party
represented by such counsel in such  proceeding.  The failure to deliver written
notice to the indemnifying party within a reasonable time of the commencement of
any such action,  if  prejudicial  to its ability to defend such  action,  shall
relieve such indemnifying  party of any liability to the indemnified party under
this Section 4.5.

                  (d) If the  indemnification  provided  for in this Section 4.5
from the indemnifying  party is unavailable to an indemnified party hereunder in
respect of any losses,  claims,  damages,  liabilities  or expenses  referred to
therein,  then the indemnifying  party, in lieu of indemnifying such indemnified
party,  shall contribute to the amount paid or payable by such indemnified party
as a result of such losses,  claims,  damages,  liabilities  or expenses in such
proportion as is appropriate  to reflect the relative fault of the  indemnifying
party and  indemnified  party in connection  with the actions which  resulted in
such losses,  claims,  damages,  liabilities  or expenses,  as well as any other
relevant  equitable  considerations.  The relative  faults of such  indemnifying
party and  indemnified  party shall be  determined  by reference to, among other
things,  whether any action in question,  including any untrue or alleged untrue
statement of a material fact or omission or alleged omission to state a material
fact, has been made by, or relates to information supplied by, such indemnifying
party or indemnified party, and the parties' relative intent, knowledge,  access
to information  and  opportunity  to correct or prevent such action.  The amount
paid  or  payable  by a  party  as a  result  of the  losses,  claims,  damages,
liabilities and expenses  referred to above shall be deemed to include any fees,
charges or expenses  (including fees,  disbursements  and other charges of legal
counsel)  reasonably incurred by such party in connection with any investigation
or  proceeding.  No person  guilty of fraudulent  misrepresentation  (within the
meaning  of  Section  11(f)  of  the  Securities   Act)  shall  be  entitled  to
contribution from any person.

         4.6 Additional  Obligations of SPSS.  With respect to any  registration
hereunder, SPSS shall:

                  (a) furnish to the  Shareholders  such  numbers of copies of a
prospectus,   including  a  preliminary  prospectus,   in  conformity  with  the
requirements of the Act, and such other documents as they may reasonably request
in order to facilitate  the  disposition of shares of SPSS Common Stock owned by
them;

                  (b) use reasonable  efforts to qualify the securities  covered
by such  registration  statement under such other securities or Blue Sky laws of
such  jurisdictions  as shall be reasonably  appropriate for the distribution of
the securities covered by the registration statement;

                  (c) use  reasonable  efforts to notify the NASDAQ Stock Market
of the issuance of the shares of SPSS Common Stock covered by such  registration
statement and list such shares; and


                                     - 10 -

<PAGE>



                  (d) notify each  Shareholder  of shares of SPSS  Common  Stock
under such  registration  statement as promptly as possible,  at any time when a
prospectus  relating  thereto is required to be delivered  under the Act, of the
happening  of any  event of which  SPSS has  knowledge  as a result of which the
prospectus contained in such registration statement, as then in effect, includes
an  untrue  statement  of a  material  fact or omits to  state a  material  fact
required to be stated  therein or necessary to make the  statements  therein not
misleading in light of the circumstances then existing.

         4.7 Reports Under the Exchange Act. With a view to making  available to
the  Shareholders  the  benefits of Rule 144  promulgated  under the Act and any
other rule or regulation of the SEC that may at any time permit a Shareholder to
sell securities of SPSS to the public without  registration,  SPSS agrees to use
its reasonable efforts to:

                  (a) make and keep public information available, as those terms
are understood and defined in Rule 144, at all times;

                  (b) file with the SEC in a timely manner all reports and other
documents required of SPSS under the Act and the Exchange Act; and

                  (c)  furnish  to any  Shareholder  forthwith  upon  request  a
written  statement by SPSS that it has complied with the reporting  requirements
of Rule  144 and of the Act and the  Exchange  Act,  a copy of the  most  recent
annual or  quarterly  report of SPSS,  and such other  reports and  documents so
filed by SPSS as may be reasonably  requested in availing any Shareholder of any
rule or regulation of the SEC  permitting  the selling of any securities of SPSS
held by it without registration.


                                    ARTICLE V

             REPRESENTATIONS AND WARRANTIES OF THE QUANTIME INSIDERS

         The Quantime Insiders, jointly and severally,  represent and warrant as
of the date hereof to SPSS as follows:

         5.1 Organization and Qualification.  (a) Quantime is a corporation duly
organized and validly existing under English law and has the corporate power and
authority  to own or lease the  properties  and other  assets which it presently
owns or leases and to carry on its business as presently conducted.

         Quantime  Corporation  and  Quantime  S.A. de C.V.  are wholly owned by
Quantime and are the only entities  owned or under common control with Quantime.
Quantime  Corporation is a corporation  duly organized,  validly existing and in
good standing under the laws of the State of Delaware,  is qualified to transact
business in the State of Ohio,  and has the power and  authority to own or lease
the properties and other assets which it presently owns or leases and

                                     - 11 -

<PAGE>



to carry on its  business as  presently  conducted.  Quantime  S.A. de C.V. is a
corporation duly organized,  validly existing and in good standing under Mexican
law, and, except as described in Schedule  5.11(a),  neither owns nor leases any
properties or other assets (and at no time has owned or leased any properties or
other  assets)  and  conducts  no  business  (and at no time has  conducted  any
business). (Quantime Corporation is hereinafter referred to as the "Subsidiary";
Quantime S.A. de C.V. is  hereinafter  referred to as the "Mexican  Subsidiary";
the Subsidiary and the Mexican Subsidiary are hereinafter  collectively referred
to as the "Subsidiaries".)  Except as referred to in Schedule 5.(1)(a),  neither
Quantime,  the  Subsidiary  nor the Mexican  Subsidiary  has any equity or other
ownership interest in any other entity.

                  (b)  The  copy  of the  Memorandum  of  Association,  and  all
amendments thereto,  of Quantime,  as filed with the United Kingdom Registrar of
Companies, and of the Articles of Association,  as amended to date, of Quantime,
as certified by its Secretary and as filed with the United Kingdom  Registrar of
Companies,  all as previously  made  available to SPSS,  are true,  complete and
correct  copies  as  amended  and  presently  in  effect.   The  copies  of  any
organizational  and governing  documents of the Subsidiaries  including  without
limitation  the  Certificate  of  Incorporation  of  Quantime  Corporation,   as
certified by the appropriate  government  authorities,  and the Bylaws and other
documents  serving  substantially  the same  function,  all as  previously  made
available  to SPSS,  are  true,  complete  and  correct  copies as  amended  and
presently in effect.  All minutes and consents of the shareholders and directors
of Quantime and the  Subsidiaries  are contained in the minute books of Quantime
and the  Subsidiaries  and said  minute  books have been  furnished  to SPSS for
examination.  Other than the minutes  provided by and  certified by the Quantime
Insiders on the Closing  Date, no minutes or consents have been included in such
minute  books  since such  examination  by SPSS which have not  heretofore  been
furnished to SPSS and no corporate action not reflected in said minute books has
been taken.

                  (c) Except as set forth in Schedule  5.1(c) hereto,  Quantime,
the Subsidiary and the Mexican Subsidiary are each duly licensed or qualified to
do business as a foreign  corporation,  and are each in good standing,  in every
domestic and foreign jurisdiction in which each of Quantime,  the Subsidiary and
the Mexican Subsidiary are required to be so licensed or qualified, except where
failure to do any of the foregoing  would not have a material  adverse effect on
the business, properties or condition (financial or other) of either Quantime or
the Subsidiaries.

                  (d) All  charges in favor of  Quantime  have (if  appropriate)
been registered in accordance with ss395,  409, 410 and 424 of the Companies Act
1985 of England.

         5.2 Authority. The Quantime Shareholders,  on their own behalf, and the
attorneys-in-fact  executing and delivering this Agreement on behalf of any such
Quantime  Shareholders,  have full power,  capacity and authority  (corporate or
otherwise)  to  execute  and  deliver  this  Agreement,  and all  documents  and
instruments  executed and delivered in connection  therewith,  and to consummate
the transactions  contemplated hereby and thereby. The execution and delivery of
this Agreement and such other documents and the consummation of the transactions
contemplated  hereby  and  thereby  have been duly and  validly  authorized  and
approved by all

                                     - 12 -

<PAGE>



necessary action on the part of each of the Quantime  Shareholders and the Board
of Directors of Quantime and no other  proceedings  (corporate  or otherwise) on
the part of any of the  Quantime  Shareholders  or  Quantime  are  necessary  to
authorize this  Agreement and such  documents or to consummate the  transactions
contemplated  hereby  and  thereby.  This  Agreement  and the  other  agreements
contemplated by this Agreement have been duly and validly executed and delivered
by or on behalf of each of the Quantime Shareholders and constitute legal, valid
and  binding  agreements  of the  Quantime  Shareholders.  No person is a shadow
director of Quantime  (within the meaning of s741 of the Companies  Acts 1985 of
England) who is not treated as one of  Quantime's  directors for all purposes of
such laws.

         5.3 Capitalization. The entire authorized capital stock of Quantime and
the number of Shares thereof which are issued and outstanding are as follows:

==============================================================================
     NUMBER OF                                                      NUMBER
 AUTHORIZED SHARES                                              ISSUED AND
    OF QUANTIME                      CLASS                     OUTSTANDING
- ------------------------------------------------------------------------------
     6,000,000                      Class A                      1,320,394
- ------------------------------------------------------------------------------
     2,000,000                      Class B                        854,341
- ------------------------------------------------------------------------------
     4,000,000                      Class C                        300,000
                                                         plus 3,371,615 in
                                                           Bearer Warrants
- ------------------------------------------------------------------------------
     4,000,000                      Class D                              0
- ------------------------------------------------------------------------------
     3,671,615                     Deferred                              0
                              1 pence shares
==============================================================================


65.548% of all of the issued and outstanding  Shares of Quantime's capital stock
are owned of record  and  beneficially  by the  Shareholders  in the  respective
amounts set forth in Schedule 5.3 hereto.  Quantime beneficially owns all of the
issued  and  outstanding   shares  of  the  Subsidiaries'   capital  stock  (the
"Subsidiary  Shares").  The  Shares  and  Subsidiary  Shares  are  subject to no
restrictions on transferability  other than restrictions imposed by the Articles
of Association of Quantime, the 1933 Act, English securities laws and applicable
state  securities  laws of states of the United States.  All of the  outstanding
Shares of capital stock of Quantime and  Subsidiary  Shares are duly  authorized
and validly issued and outstanding, fully paid and non-assessable,  and were not
issued in violation  of any  preemptive  rights.  There are no Shares of capital
stock in treasury,  and there are no Shares or  Subsidiary  Shares  reserved for
issuance.  Except as set forth in this Agreement and Schedule 5.3 hereto,  there
are no outstanding options, warrants, conversion or other rights to acquire from
any of the  Shareholders  or Quantime,  or any plans,  contracts or  commitments
providing  for  the  issuance  of,  or the  granting  of,  rights  by any of the
Shareholders or Quantime to acquire:  (i) any capital stock of Quantime (whether
issued or

                                     - 13 -

<PAGE>



unissued)  or  Subsidiary  Shares  or (ii) any  securities  convertible  into or
exchangeable for any capital stock of Quantime or Subsidiary  Shares.  Except as
set forth Schedule 5.3 hereto,  there are no agreements or  understandings  with
respect to the  voting,  holding  or  selling of any Shares of capital  stock of
Quantime or Subsidiary Shares, or any contractual obligations of Quantime or any
of its  Shareholders  with respect to  Quantime's  capital  stock or  Subsidiary
Shares.  There are no voting trusts or proxies  currently in effect with respect
to the Shares or Subsidiary  Shares.  Except as provided in this  Agreement,  no
person has any right to require  Quantime or the Subsidiaries to register any of
its or their  securities  under the 1933 Act or pursuant to  applicable  English
law.

         5.4 [Intentionally omitted.]

         5.5 Consents and Approvals. Except as set forth in Schedule 5.5 hereto,
there is no authorization, consent, order or approval of, or notice to or filing
with, any individual or entity required to be obtained or given in order for the
Quantime  Shareholders to consummate the  transactions  contemplated  hereby and
fully perform their respective obligations hereunder.

         5.6 Absence of  Conflicts.  Except as set forth in Schedule 5.6 hereto,
the execution,  delivery and  performance by the Quantime  Shareholders  of this
Agreement and the consummation by the Quantime  Shareholders of the transactions
contemplated  hereby will not,  with or without the giving of notice or lapse of
time or both, (i) violate any provision of law,  statute,  rule or regulation to
which either  Quantime or the  Quantime  Shareholders  is or was  subject,  (ii)
violate  any order,  judgment  or decree  which is or was  applicable  to either
Quantime or the Quantime Shareholders; (iii) conflict with or result in a breach
or default  under any term or  condition of the  Memorandum  of  Association  or
Articles of  Association  of Quantime,  or any agreement or other  instrument to
which either Quantime or the Quantime Shareholders is a party or by which either
of them is bound,  or (iv)  cause,  or give any  person  grounds  to cause,  the
maturity of any debt,  liability or obligation of Quantime to be  accelerated or
increase any such liability or obligation.

         5.7 Financial Statements:  Accounts Receivable. Quantime has previously
delivered to SPSS true and correct copies of the combined audited balance sheets
of Quantime  and the  Subsidiary,  as of March 31, 1997 and the related  audited
statements of income,  statements of retained earnings and statements of changes
in cash flows for the periods ending on such dates (collectively, the "Financial
Statements").  Except as disclosed on Schedule 5.7, the Financial Statements (i)
have  been  prepared  in  accordance  with  the  generally  accepted  accounting
principles  commonly  used in England  applied on a consistent  basis and comply
with the  Companies  Act 1985 of England,  are correct and  complete  and are in
accordance  with the books and  records of  Quantime  and the  Subsidiary,  (ii)
present  fairly  the  financial  position  and  condition  of  Quantime  and the
Subsidiary  and the related  results of  operations  as at the dates and for the
periods then ended (subject to customary year-end adjustments, which adjustments
shall  not be  material  in  kind  or  amount  and  adjustments  resulting  from
fluctuations  in  currency   exchange  rates)  and  (iii)  contain  no  material
misstatements or omissions which under such

                                     - 14 -

<PAGE>



generally accepted  accounting  principles would be required to be disclosed for
financial statement purposes.

         Subject to applicable  reserves for bad debts shown on  Quantime's  and
Subsidiary's  latest balance sheet(s) included in the Financial  Statements,  as
such  reserves  are adjusted  from the date  thereof in the  ordinary  course of
business (and subject to customary year-end adjustments, which adjustments shall
not be material in kind or amount and adjustments resulting from fluctuations in
currency  exchange rates),  and except as set forth in Schedule 5.7 hereto,  all
accounts and notes receivable  reflected on the balance sheet(s) are, and to the
best  of  Quantime  Insiders'   knowledge  all  accounts  and  notes  receivable
subsequently  accruing  to the  Closing  Date will be,  (a) valid,  genuine  and
subsisting, (b) subject to no known defenses,  set-offs or counterclaims and (c)
current and collectible.

         5.8  Absence of  Undisclosed  Liabilities.  Except as and to the extent
reserved for in the Financial Statements or as set forth in Schedule 5.8 hereto,
neither  Quantime nor Subsidiary has any  liabilities  or  obligations,  whether
accrued, absolute or contingent,  determined or undetermined,  or whether due or
to become due (including,  without  limitation,  obligations as guarantor) other
than those in the ordinary  course of business since March 31, 1997,  which have
not yet been accrued or booked. To the best of the Quantime Insiders' knowledge,
there is no basis for the  assertion of any claim or  liability  relating to the
businesses  of  either  Quantime  or  Subsidiary,  nor  are  they  aware  of any
occurrence or fact that has or might have an adverse effect on the businesses of
either  Quantime or  Subsidiary.  Except as disclosed in Schedule 5.8, as of the
date of this Agreement,  neither Quantime nor Subsidiary has outstanding debt to
any bank or other lender.

         5.9  Absence  of  Certain  Changes  or  Events.  Except as set forth on
Schedule 5.9 hereto,  since March 31, 1997,  there has not been (a) any material
damage,  destruction  or  casualty  loss to the  properties  or assets of either
Quantime  or  Subsidiary  (whether  covered by  insurance  or not)  outside  the
ordinary  course of business;  (b) any material  adverse change in the business,
assets,  properties,  operations  or financial  condition of either  Quantime or
Subsidiary, or any fact or condition which could cause such a change, other than
any change,  fact or condition  related solely to the transactions  contemplated
hereby; (c) any entry into any transaction,  commitment or agreement (including,
without limitation, any borrowing) individually or in the aggregate in excess of
$25,000,  and outside  the  ordinary  course of  business of either  Quantime or
Subsidiary;  (d)  any  direct  or  indirect  redemption,   repurchase  or  other
acquisition  for value by Quantime of its capital stock or any agreement to take
such action,  or any  declaration,  setting  aside or payment of any dividend or
other distribution in cash, stock or property with respect to Quantime's capital
stock;  (e)  except  for  information  pertaining  to  annual  salary  increases
effective  April 1997,  which  information has previously been provided to SPSS,
any increase in the rate or terms of  compensation  payable or to become payable
by either  Quantime  or  Subsidiary  to their  respective  directors,  officers,
employees,  agents or  independent  contractors  or any  increase in the rate or
change in the terms of any employment agreement or compensatory arrangement,  or
any  changes in any  bonus,  severance,  pension,  insurance  or other  employee
benefit plan, or any other payment or benefit made to or for any such  director,
officer,

                                     - 15 -

<PAGE>



employee,  agent or  independent  contractor;  (f) any sale,  transfer  or other
disposition  of any  asset  of  either  Quantime  or  Subsidiary  to any  party,
including,   without  limitation,  the  Shareholders,   except  for  payment  of
obligations  incurred,  and sale of products, in the ordinary course of business
consistent with past practices; (g) any amendment or termination of any material
contract or agreement to which either  Quantime or  Subsidiary is a party or any
termination  or waiver of any other rights of value to the  businesses of either
Quantime or  Subsidiary,  except in the ordinary  course of business  consistent
with past  practices;  (h) any capital  expenditure for additions to property or
equipment by either Quantime or Subsidiary in excess of $10,000;  (i) any split,
combination,  exchange or  reclassification of shares of capital stock of either
Quantime or Subsidiary;  (j) any issuance of capital stock of either Quantime or
Subsidiary  or of  securities  convertible  into or rights to  acquire  any such
capital stock;  (k) any failure by either Quantime or Subsidiary to pay accounts
payable or other obligations in the ordinary course of business;  (l) any pledge
of any of the assets or  properties  of either  Quantime  or  Subsidiary  or any
action or inaction  which would  subject  any such assets or  properties  to any
lien, security interest, mortgage, pledge, claim, charge or other encumbrance of
any kind other than seller's liens incurred in the ordinary  course of business;
(m) any actual or, to the best of the Quantime Insiders'  knowledge,  threatened
termination  or  cancellation  of, or  modification  or change in, any  business
relationship  with any customer or customers of either Quantime or Subsidiary or
other agreement or arrangement  involving or related to the assets or properties
of the businesses of either  Quantime or Subsidiary;  (n) any  cancellation of a
debt, other than trade debt, due to or a claim of either Quantime or Subsidiary,
other than by payment or other satisfaction;  (o) any failure of either Quantime
or Subsidiary to perform under,  or any default by either Quantime or Subsidiary
under,  any agreement,  obligation or covenant to which either of them is or was
bound;  (p) any  change in any  method of  accounting  or  accounting  practice,
principle  or  procedure;  (q) any action or inaction  which might cause  either
Quantime or Subsidiary to incur any tax liability out of the ordinary  course of
business; (r) any other event or condition of any character which materially and
adversely  affects the businesses of either  Quantime or Subsidiary;  or (s) any
agreement, whether in writing or otherwise, to take any action described in this
Section  5.9.  A matter  described  in this  Section  5.9  shall be deemed to be
"material"  if  any  damage,  destruction,   loss  or  adverse  change  exceeds,
individually or in the aggregate for each subsection, $50,000.

         5.10 [Intentionally omitted.]

         5.11 Real and Personal Property;  Inventories.  Schedule 5.11(a) hereto
correctly  identifies  (i) each lease or rental of real property held or paid by
each of Quantime and Subsidiary; and (ii) each parcel of real property, and each
interest (other than such leases or rentals) in real property,  owned by or used
in the  operations  of the  businesses of each of Quantime and  Subsidiary;  and
(iii) all charges  against  such  properties  together  with the  principal  and
interest  outstanding,  it being hereby  confirmed  that Quantime and Subsidiary
have complied in all material  respects with the terms of the charges;  and (iv)
as to such real property,  all charges or leases or rentals the benefit of which
is vested in Quantime or  Subsidiary,  detailing  the principal and interest (in
respect of charges) and the rents  receivable  (in respect of leases),  it being
hereby  confirmed  that the  tenant,  lessee or  mortgagor  has  complied in all
material

                                     - 16 -

<PAGE>



respects to date with the terms of the mortgage deed,  rental agreement or lease
(as  appropriate)  and has not alleged  any breach by  Quantime  or  Subsidiary.
Except as set forth in  Schedule  5.11(a)  hereto,  (a) any land and  structures
described  in  Schedule  5.11(a) and  Quantime's  and  Subsidiary's  use thereof
conform in all material respects with all applicable  ordinances,  requirements,
regulations,  zoning laws, planning and building control, restrictive covenants,
leasehold and rental covenants,  indemnities given,  conditions and restrictions
and do not  encroach  on  property  of others,  and are not  encroached  upon by
structures of others;  and (b) no claims,  charges or notice of violations  have
been filed,  served,  made or, to the best of the Quantime Insiders'  knowledge,
threatened,  orally or in writing,  against or relating to any such  property or
the documents under which it is held, or any of the operations  conducted at any
such  property  (currently  or in the past) as a result of (i) any  violation or
alleged  violation  of any  applicable  ordinances,  requirements,  regulations,
zoning laws, planning and building control, restrictive covenants, leasehold and
rental covenants,  indemnities given,  conditions or restrictions,  or (ii) as a
result of any  encroachment  on the property of others.  Also, to the extent any
such real  property  is  located  in the United  Kingdom,  Quantime  is the sole
proprietor  of such real  property  registered at HM Land Registry with absolute
title,  and any lease of such  property  granted for more than 21 years and less
than 40 years is either registered at HM Land Registry or not registered because
the reversion to it was not  registered  at the time of grant,  and there are no
cautions  or  notices  registered  against  its  titles  and to the  best of the
Quantime Insiders' knowledge,  there are not any overriding interests as set out
in Section 70(1) of the Land Registration Act 1925 of England.  Neither Quantime
nor  Subsidiary  owns real  property in any other  countries.  Schedule  5.11(b)
hereto  describes  all material  tangible or  intangible  personal  property and
assets of each of Quantime and Subsidiary. Quantime and Subsidiary have good and
marketable title to, and are in possession of or have control over, all of their
real property and good title to all of their personal property, none of which is
held  under or  subject  to any  mortgage,  pledge,  lien,  lease,  encumbrance,
conditional  sales contract or other security  arrangement  except to the extent
described in Schedule 5.11(b) hereto.  The tangible personal property and assets
are  sufficient to operate the business and consist of all of such property used
in the business.  Since January 1988 and except for the real property  described
in Schedule  5.11(a),  neither  Quantime nor Subsidiary has owned any other real
property  or been the  tenant  of,  or a  guarantor  in  respect  of,  leasehold
property, and to the best of the Quantime Insiders' knowledge,  neither Quantime
nor  Subsidiary  has any other actual or potential  liability  under leases with
respect to  leasehold  property or real  property and has no actual or potential
liability  under  any  indemnity  covenants  given  for  any  leasehold  or real
property.

         The  inventories of each of Quantime and  Subsidiary,  as listed on the
balance sheet(s) of Quantime,  are in good and merchantable condition and are of
a quality suitable and usable or saleable in the ordinary course of business for
the purposes for which such inventories are intended.  The inventory,  as listed
on the balance  sheet(s) of  Quantime,  is adequate for each of  Quantime's  and
Subsidiary's  businesses,  and  except  as  stated in the  balance  sheet(s)  of
Quantime,  there has been no material  adverse change in the amount and quantity
of such inventories since March 31, 1997.


                                     - 17 -

<PAGE>



         5.12  Patents,  Trademarks,  Etc.  Schedule  5.12  hereto  contains  an
accurate  and  complete   description  of  all  domestic  and  foreign  patents,
trademarks, service marks, trademark registrations,  logos, trade names, assumed
names,  copyrights and copyright registrations and all applications therefor and
all  registered  designs  and design  rights  (collectively,  the  "Intellectual
Property"),  presently owned or held by each of Quantime and Subsidiary or under
which  either  Quantime or  Subsidiary  owns or holds any  license,  or in which
either Quantime or Subsidiary owns or holds any direct or indirect interest; and
no others are  necessary  for the  conduct of the present  businesses  of either
Quantime or Subsidiary. To the best of the Quantime Insiders' knowledge, none of
the products manufactured, distributed or sold by either Quantime or Subsidiary,
nor any of the Intellectual  Property or other intellectual  property (including
without  limitation,   technology,  inventions,  processes,  designs,  formulae,
know-how,  trade secrets)  (collectively,  with the Intellectual  Property,  the
"Intellectual  Assets"),  or  any of  Quantime's  and  Subsidiary's  activities,
conflict  with,  infringe  or  otherwise  violate  any  patents,  trademarks  or
copyrights,  or any other  rights,  of any  individual  or entity,  nor  require
payments to be made to any person.  Each of Quantime and Subsidiary has the sole
and  exclusive  right to use,  has the right  and  power to sell,  and has taken
reasonable  measures to maintain and protect the Intellectual  Assets; no claims
have  been  asserted  by any  individual  or  entity  with  respect  thereto  or
challenging  or  questioning  the  validity or  effectiveness  of any license or
agreement  with  respect  thereto,  and, to the best of the  Quantime  Insiders'
knowledge,  there is no valid basis for any such  claim.  Neither  Quantime  nor
Subsidiary  is using  confidential  information  or trade  secrets of any former
employer  of any past or  present  employees  engaged  in  businesses  of either
Quantime or  Subsidiary.  The items  described  in  Schedule  5.12 and the other
Intellectual  Assets are adequate to conduct the  businesses of each of Quantime
and Subsidiary as presently conducted.  Subject to the foregoing,  Quantime owns
good title to all of the Intellectual Assets.

         5.13 Rights of Employees with Respect to Certain Intellectual Property.
Neither  Quantime  nor  Subsidiary  owns or has any right,  license or interest,
whether as a  licensee,  licenser  or  otherwise,  in any  copyrights,  patents,
applications for copyrights or patents, trade secrets, inventions, processes and
designs or in any trademarks,  service marks,  trade names, or applications  for
them, or registered  designs or design rights,  except as listed or described in
Schedule  5.12.  Quantime  is not,  and to the  best of the  Quantime  Insiders'
knowledge,  no employee of either  Quantime or Subsidiary is in violation of (i)
any  term of any  employment  contract,  any  "work  for  hire"  arrangement  or
agreement,  or any patent  disclosure  agreement  or (ii) any other  contract or
agreement,  or any  restrictive  covenant  relating  to the  rights  of any such
employee-to be employed by either Quantime or Subsidiary or to use trade secrets
or proprietary information of others.

         5.14     Contracts and Commitments.

         (a) Schedule 5.14 lists the following contracts and other agreements to
which either Quantime or Subsidiary is a party (collectively, the "Contracts"):

                  (i)      any customer agreement, distributor agreement
                           relating to the licensing of products of Quantime or

                                     - 18 -

<PAGE>



                           Subsidiary requiring payments in excess of
                           $100,000 per annum;

                  (ii)     any agreement for the lease of personal property from
                           any  person or entity  requiring  lease  payments  in
                           excess of $25,000 per annum;

                  (iii)    any  agreement  for  the  purchase  or  sale  of raw 
                           materials, commodities,  supplies, products or other 
                           personal property, or for the  furnishing  or receipt
                           of  services  requiring  payments  by  Quantime  or  
                           Subsidiary in excess of $25,000 per annum, excluding 
                           employment agreements; or

                  (iv)     any  agreement  concerning  a  partnership  or  joint
                           venture.

         (b) Quantime has previously made available to SPSS a true,  correct and
complete copy of each of the Contracts.  Quantime has not materially breached or
has not caused to exist a material default under any of the Contracts and to the
best of the Quantime Insiders' knowledge,  there is no basis for any valid claim
or default in any  respect  under any of the  Contracts.  Except as set forth in
Schedule 5.16, none of the Contracts contains a clause in respect of a change of
control of Quantime.

         (c) Except as set forth on the Schedule 5.14 hereto,  neither  Quantime
nor  Subsidiary  has  given  any  power  of  attorney   (whether   revocable  or
irrevocable) to any individual or entity.

         (d) All of the  Contracts are valid and binding  obligations  of either
Quantime or Subsidiary, enforceable in accordance with their respective terms to
the extent  permitted  by  applicable  law, and are in full force and effect and
complied with. Except as set forth on Schedule 5.14, to the best of the Quantime
Insiders'  knowledge,  no other party to any of the  Contracts  is in default or
breach thereof.

         (e)  True  and  correct  copies  of each  standard  form  customer  and
distributor  contract currently in use by each of Quantime and Subsidiary in the
conduct of its businesses have been provided to SPSS.

         5.15  Source  Code.  Except  as set  forth in  Schedule  5.15,  each of
Quantime and Subsidiary owns all rights, title and interest in and to the source
codes for all of its  software  products and has not  distributed  any copies of
such  source  codes to any third  parties,  except for copies of the source code
relating to products which are now obsolete, and neither Quantime nor Subsidiary
has agreed to pay to any  individual or entity any royalty,  commission or other
amount on account of sales of their software products.


                                     - 19 -

<PAGE>



         5.16  Licenses  and  Royalties.  Except as set forth on  Schedule  5.16
hereto,  neither  Quantime  nor  Subsidiary  is a  licensee  under any  license,
including, without limitation,  licenses with respect to source codes used or to
be used in either Quantime's or Subsidiary's software products,  and neither has
an  obligation  to pay  royalties  to any third party in  connection  therewith.
Neither  Quantime nor  Subsidiary  has granted to any  individual  or entity any
rights or  security  interests  with  respect  to the  source  codes for  either
Quantime's or Subsidiary's  software products.  Quantime has not breached in any
material  respect and has not caused to exist a material  default under any such
licenses and, to the best of the Quantime Insiders' knowledge, there is no basis
for any valid claim or default in any respect  under such  licenses and no other
party is in breach or default thereof.

         5.17 Technical  Documentation.  The source code, system  documentation,
statements or principles of operation,  and schematics made available to SPSS by
Quantime and Subsidiary  relating to the software products currently  maintained
or licensed by either Quantime or Subsidiary constitutes all of the source code,
system documentation,  statements or principles of operation and schematics held
by Quantime or Subsidiary relating to the software products currently maintained
or licensed by either Quantime or Subsidiary (the "Technical Documentation").

         5.18 Third-Party Components in Software Programs.  Each of Quantime and
Subsidiary  has validly and  effectively  obtained the right and license to use,
copy,   modify  and  distribute  any   third-party   programming   and  software
documentation  materials  contained  in  each  of  Quantime's  and  Subsidiary's
software  products and the  Technical  Documentation  pursuant to licenses  from
third parties as set forth in Schedule 5.18.

         Except as otherwise  provided in Schedule 5.18,  each of Quantime's and
Subsidiary's software products and the Technical Documentation contains no other
programming or materials in which any third party may claim  superior,  joint or
common ownership, including any right or license, and, do not contain derivative
works of any  programming  or  materials  not owned in their  entirety by either
Quantime or Subsidiary.

         5.19 Third-Party  Interests or Marketing  Rights in Software  Programs.
The contracts,  agreements,  licenses or other  commitments or  arrangements  in
effect with respect to the development,  marketing, distribution,  licensing, or
promotion of either  Quantime's or Subsidiary's  software  products or any other
inventory,  the Technical  Documentation,  or either  Quantime's or Subsidiary's
Intellectual Assets with any independent salesperson,  distributor, sublicensor,
or other remarketer or sales organization which have been made available to SPSS
constitute all of such contracts,  agreements,  licenses or other commitments or
arrangements in effect with respect to the development, marketing, distribution,
licensing,  or promotion of either Quantime's or Subsidiary's  software products
or any other inventory,  the Technical  Documentation,  or either  Quantime's or
Subsidiary's Intellectual Assets with any independent salesperson,  distributor,
sublicensor, or other remarketer or sales organization.


                                     - 20 -

<PAGE>



         5.20  Software  Security  Warranties.  Except  as set forth in a letter
dated as of the date hereof to the Senior Vice President; Product Development of
SPSS,  the  software  products  of  Quantime  and  Subsidiary  are  free  of any
passwords,  keys, security devices or trap doors, and any computer  instructions
(including,  but not limited to, computer  instructions  commonly referred to as
Trojan Horses,  anomalies,  worms,  self-destruct  mechanisms,  or time bombs or
logic bombs) which are  intended to interfere  with or frustrate  the use of the
software products,  any portion thereof, or other software or computer hardware,
whether or not currently in effect with respect to any copy of either Quantime's
or Subsidiary's software products.

         5.21  Non-Infringement.  Quantime's and Subsidiary's  software products
and any licenses by Quantime or Subsidiary or other rights connected  therewith,
express or implied,  will not infringe any other person's  intellectual property
rights.

         5.22 Government Contracts.  Except as set forth in a letter dated as of
the date hereof from Quantime to the Senior Vice President-Corporate Operations,
Chief Financial Officer and Secretary of SPSS, the Quantime Insiders do not have
knowledge of any acts,  omissions or noncompliance with regard to any applicable
public contracting statute,  regulation or contract requirement (whether express
or  incorporated  by reference) to any contracts  relating to either Quantime or
Subsidiary,  its  businesses or any of its assets with any  Government  Contract
Party (as  defined  below) in either  case that have led to or could lead to (a)
any claim or dispute involving either Quantime or Subsidiary, its businesses, or
any of its  assets  and any  Government  Contract  Party or (b) any  suspension,
debarment or contract  termination,  or proceeding related thereto. The Quantime
Insiders  have no  knowledge  of any act or omission  related to the  marketing,
licensing,  or selling of any software related to either Quantime or Subsidiary,
or its business  that has led to or could have any material  adverse  affects on
either  Quantime's  or  Subsidiary's  rights  or on any of  its  assets.  All of
Quantime's and Subsidiary's  development of technical data and computer software
was developed exclusively at private expense. For purposes of this Section 5.22,
the term "Government  Contract Party" means any independent or executive agency,
division,  subdivision, audit group or procuring office of any governmental body
including,  without  limitation,  the United  States or United  Kingdom  federal
government,  any prime contractor of the United States or United Kingdom federal
government  and any higher  level  subcontractor  of a prime  contractor  of the
United States or United Kingdom federal government,  and including any employees
or agents thereof, in each case acting in such capacity.

         5.23 Product  Warranties and Liabilities.  Except as stated in Schedule
5.9(o) and Schedule 5.14,  neither Quantime nor Subsidiary has given or made any
express or implied  warranties  (except for implied  warranties  that may not be
disclaimed  pursuant to applicable  law) with respect to any products  licensed,
distributed,  offered  or sold or  services  performed  by them,  except for the
limited warranties stated in standard form customer  contracts,  previously made
available to SPSS, with modifications  that, in the aggregate,  would not have a
material adverse effect on business,  prospects or financial condition of either
Quantime or Subsidiary.  The Quantime  Insiders do not have any knowledge of any
fact or of the  occurrence  of any event  forming  the basis of any  present  or
future claim against either Quantime or Subsidiary, whether

                                     - 21 -

<PAGE>



or not fully  covered  by  insurance,  for  liability  on  account  of  products
liability or on account of any express or implied product  warranty,  except for
warranty  obligations and product returns in the ordinary course of business and
as set forth in Schedule 5.23.

         5.24 Insurance.  Schedule 5.24 hereto is a description of all insurance
policies held by each of Quantime and Subsidiary  concerning  their  businesses,
operations and properties,  true, complete and correct copies of which have been
previously  provided  to SPSS.  Each of the  insurance  policies  referred to in
Schedule 5.24 is in force and the premiums  with respect  thereto are fully paid
through the dates indicated thereon,  and nothing has been done or omitted to be
done which could make any policy of insurance  void or voidable.  No insurer has
denied coverage or reserved rights for any claim made by Quantime, Subsidiary or
any other individual or entity under any insurance policies.

         5.25 Litigation and Administrative Proceedings.  Except as set forth in
Schedule  5.25  hereto,  there  is  no  claim,   action,  suit,   proceeding  or
investigation  in any court or before any  governmental or regulatory  authority
pending or, to the best of the Quantime Insiders' knowledge,  threatened against
or affecting  either  Quantime or  Subsidiary or which seeks to enjoin or obtain
damages  in  respect  of the  transactions  contemplated  hereby.  The  Quantime
Insiders do not know of any basis for any such claim, action,  suit,  proceeding
or investigation.  To the best of the Quantime Insiders's  knowledge,  no claim,
action,  suit,  proceeding or investigation set forth in Schedule 5.25 could, if
adversely decided,  have a material adverse effect on the business,  properties,
condition   (financial  or  otherwise)  or  prospects  of  either   Quantime  or
Subsidiary.

         5.26     [Intentionally omitted].

         5.27 Compliance with Laws. Except as set forth on Schedule 5.27 hereto,
to the best of the Quantime Insiders' knowledge, neither Quantime nor Subsidiary
has in the past been nor are either  presently  in  violation  of, in respect of
operations, real property,  machinery,  equipment, all other property, practices
and all other aspects of its businesses,  any applicable law (whether  statutory
or otherwise),  rule, regulation,  order,  ordinance,  judgment or decree of any
governmental  authority  (federal,  state,  local or  otherwise)  (collectively,
"Laws") that would have a material adverse effect on the business, properties or
condition  (financial or otherwise) of either  Quantime or  Subsidiary.  Neither
Quantime nor Subsidiary has received any notification of any asserted present or
past failure of either Quantime or Subsidiary to comply with any of such Laws.

         5.28 Environmental and Safety Matters.  (a) As to properties  described
in Schedule  5.11(a) which are located in the United States,  to the best of the
Quantime  Insiders'  knowledge,  each of Quantime and Subsidiary has complied in
all material respects with all applicable United States federal,  state or local
Laws,    regulations   or   ordinances   relating   to   environmental   matters
("Environmental  Laws")  including,  but not  limited to: air  pollution;  water
pollution;  noise control; on-site or off-site solid or hazardous waste storage,
treatment,  discharge,  disposal  or  recovery;  toxic  and  hazardous  chemical
reporting; or employee safety and hazardous material

                                     - 22 -

<PAGE>



use, generation, reliance,  transportation,  and reporting provisions. Except as
set forth on Schedule  5.28,  no notice of violation  of or potential  liability
resulting from any such Environmental Laws, or orders with respect thereto,  has
been received, nor to the best of the Quantime Insiders' knowledge,  threatened.
No  underground  or above ground  storage  tanks are or have, to the best of the
Quantime Insiders' knowledge,  prior to Quantime's or Subsidiary's  occupancy or
possession  thereof  been located on the real  properties  described in Schedule
5.11(a)  attached  hereto or previously  owned or operated by either Quantime or
Subsidiary.  The Quantime  Insiders are not aware of any generation,  treatment,
storage,  transfer,  disposal,  release or threatened release in, at, from or on
such real properties of toxic or hazardous substances by any current or previous
owner or tenant of such real properties,  to the extent that such is a violation
of law.

                  (b) As to properties  described in Schedule  5.11(a) which are
located in the United Kingdom, and except as provided in that certain Health and
Safety Management  Evaluation Guide dated July 14, 1997,  prepared by Quantime's
insurance brokers and previously delivered to SPSS (the "Environmental Report"),
(i) Quantime has  complied,  and has adequate  facilities to continue to comply,
with all  current  legislation  (both  primary  and  secondary)  relating to the
protection  of the  environment;  (ii)  Quantime  has not  caused  or  knowingly
permitted poisonous,  noxious or polluting matter or solid waste matter to enter
controlled waters;  trade or sewage effluent to be discharged from a building or
a fixed plant; or matter to enter inland freshwaters so as to tend to impede the
proper flow of the waters in a manner leading or likely to lead to pollution, in
each case  within the meaning of section 85 of the Water  Resources  Act 1991 of
England;  (ii) Quantime has not been required to reimburse the expenses incurred
by the National  Rivers  Authority  under section 161 of the Water Resources Act
1991 of England;  (iii) Quantime has not been required to incur expenditure as a
result of pollution or contamination of any land or buildings;  (iv)Quantime has
not done or  failed  to do  anything  as a result of which it has been or may be
subject to a liability or penalty as a result of pollution or contamination;  or
has received or could  receive a  remediation  notice  under  section 78E of the
Environmental  Protection Act 1990 of England.  During Quantime's  possession or
occupancy of the properties listed on Schedule  5.11(a),  and to the best of the
Quantime  Insiders'  knowledge,  prior to possession or occupancy by Quantime of
such  properties,  no audit has been  carried  out in respect of the  properties
listed on Schedule  5.11(a) or of land previously  owned or occupied by Quantime
which relates to the extent to which such properties or land previously owned or
occupied by Quantime are or might be contaminated or polluted or liable to cause
damage to the environment or to living things.

         5.29     Employee Benefits.

                  5.29.1  Attached  hereto as Schedule 5.29 is a written list of
all employee  benefit plans relating to employee  benefits with respect to which
each of  Quantime  and  Subsidiary  has  incurred  or may  incur  any  future or
contingent obligations,  including, without limitation, all plans, agreements or
arrangements  relating  to  deferred  compensation,  pensions,  profit  sharing,
retirement income or other benefits,  stock purchase,  stock ownership and stock
option plans, stock appreciation rights, bonuses, severance arrangements, health
and welfare benefits,

                                     - 23 -

<PAGE>



insurance   benefits  and  all  other  employee   benefits  or  fringe  benefits
(collectively  referred  to as the  "Plans").  Each  Plan is in full  force  and
effect. Quantime has delivered or made available to SPSS true and correct copies
of each Plan,  each  summary  plan  description  relating to a Plan and the last
three Forms 5500 which may have been filed for each Plan. As to  Quantime's  and
Subsidiary's  operations in the United States, and except as may be indicated on
Schedule 5.29 hereto,

                  (a)  neither  Quantime  nor  Subsidiary  contributes,  nor has
         either of them ever contributed,  to any multi-employer plan within the
         meaning  of  Section  4001(a)(3)  of  the  Employee  Retirement  Income
         Security Act of 1974, as amended ("ERISA"),  nor are either Quantime or
         Subsidiary  affiliated with any entity such that Quantime or Subsidiary
         has, or might have in the future,  any  multi-employer  plan withdrawal
         liability under Subtitle E of Part IV of ERISA.

                  (b) Each Plan (and each trust forming a part of such Plan) has
         been  administered  and operated in all respects in accordance with its
         terms and applicable law. Where  designated on Schedule 5.29, each Plan
         is  "qualified"  within the  meaning of Section  401(a) of the Code and
         each related trust is exempt from tax under Section 501(a) of the Code.

                  (c) With  respect  to each Plan  relating  to  Quantime's  and
         Subsidiary's  operations  in the  United  States,  no  person:  (i) has
         entered into any non-exempt  "prohibited  transaction," as such term is
         defined in ERISA and the Code; (ii) has breached a fiduciary obligation
         or violated Sections 402, 403, 405, 503, 510 or 511 of ERISA; (iii) has
         any liability for any failure to act or comply with the  administration
         or  investment  of the  assets of such  Plan;  (iv) has  engaged in any
         transactions  or otherwise  acted with respect to such Plan in a manner
         which could  subject  Quantime,  Subsidiary  or any  fiduciary  or plan
         administrator  or other  person  dealing  with such Plan,  to liability
         under  Sections  409 or 502 of ERISA or Sections  4972 or 4976  through
         4980 of the Code.

                  (d) No liability to the Pension Benefit  Guaranty  Corporation
         ("PBGC") has been, or to the best of the Quantime Insiders'  knowledge,
         is  expected  to be,  incurred  with  respect to any Plan  relating  to
         Quantime's and Subsidiary's operations in the United States, except for
         liabilities  for PBGC premiums  which may be expected to be incurred in
         the ordinary course of business. PBGC has not instituted proceedings to
         terminate  any Plan.  No  "reportable  event,"  within  the  meaning of
         Section  4043(b) of ERISA,  for which the  obligation  to report to the
         PBGC within 30 days has not been waived by the PBGC,  has occurred with
         respect to any Plan.  There exists no condition or set of circumstances
         which presents a risk of termination or partial termination of any Plan
         relating to Quantime's and Subsidiary's operations in the United States
         and which could result in a liability on the part of either Quantime or
         Subsidiary to the PBGC.


                                     - 24 -

<PAGE>



                  (e) With respect to Quantime's and Subsidiary's  operations in
         the United  States,  full  payment has been made of all  amounts  which
         either  Quantime or Subsidiary  was required  under the terms of any of
         the Plans to have paid as  contributions  to such  Plans on or prior to
         the Closing Date, and no "accumulated  funding  deficiency" (as defined
         in Section 302(a)(2) of ERISA and Section 412(a) of the Code),  whether
         or not waived, exists with respect to any such Plan.

                  (f) Other than for claims in the  ordinary  course of business
         for benefits under the Plans,  there are no actions,  suits,  claims or
         proceedings,  pending or  threatened,  nor to the best of the  Quantime
         Insiders'  knowledge  does there  exist any basis  therefor,  which may
         result  in  any  liability  with  respect  to  any  Plan  to  Quantime,
         Subsidiary or any Plan or trust thereof.

                  (g) The  present  value of  accrued  benefits  under each Plan
         relating to Quantime's and Subsidiary's operations in the United States
         which is  subject to Title IV of ERISA  does not  presently  exceed the
         current  value of the  assets of such Plan  allocable  to such  accrued
         benefits. For purposes of the representation in the preceding sentence,
         the terms  "current  value" and  "accrued  benefit"  have the  meanings
         specified  in Sections  3(26) and 3(23),  respectively,  of ERISA;  and
         "present  value" shall be determined  using the  actuarial  assumptions
         which  would be used by the  enrolled  actuary  for each  such  Plan in
         connection   with   determining   whether  such  Plan   satisfies   the
         requirements of Section 412 of the Code,  determined  without regard to
         Subsection (b)(5)(B) thereof.

                  (h) Except for  continuation  coverage  under  Sections 601 et
         seq.  of ERISA,  no former  employee  of  Quantime,  Subsidiary  or any
         affiliate  thereof,  nor any dependent of any such former employee,  is
         entitled to any  medical,  dental  benefits or other  welfare  benefits
         under any Plan relating to Quantime's  and  Subsidiary's  operations in
         the United States.

                  5.29.2 As to  Quantime's  operations  in the  United  Kingdom,
Quantime is under no legal  obligation,  nor is Quantime a party to an ex-gratia
arrangement, to pay pensions, gratuities, superannuation allowances or the like,
or otherwise to provide "relevant benefits" within the meaning of the Income and
Corporation  Taxes Act  ("ICTA")  s612(1),  to or for any of its past or present
officers or employees or their dependents;  and there are no retirement benefit,
or pension or death benefit,  or similar schemes or arrangements in relation to,
or binding on,  Quantime or to which Quantime has any legal or moral  obligation
to contribute.

         5.30 Licenses and Permits.  Quantime and  Subsidiary  have all material
governmental licenses and permits and other material governmental authorizations
and approvals required for the conduct of its businesses as presently  conducted
("Permits"). Schedule 5.30 hereto includes a list of all Permits.


                                     - 25 -

<PAGE>



         5.31 Relations  With  Suppliers and  Customers.  Except as set forth in
Schedule 5.31, neither Quantime nor Subsidiary nor the Quantime  Shareholders is
required to provide  any bonding or other  financial  security  arrangements  in
connection with any transaction with any customer or supplier.  Neither Quantime
nor  Subsidiary  nor the Quantime  Shareholders  has received any written notice
nor, to Quantime's knowledge,  any oral notice, that any customer or supplier of
either  Quantime or Subsidiary will cease to do business with either Quantime or
Subsidiary  or refuse to do  business  with SPSS after the  consummation  of the
transactions contemplated hereby.

         5.32 Interests in Competitors,  Suppliers and Customers.  Except as set
forth in  Schedule  5.32 and except for passive  investments  in  securities  of
publicly-traded companies, representing less than five percent of the issued and
outstanding  capital stock of such  companies,  neither  Quantime nor any of the
Quantime  Insiders nor any officer or director of Quantime or  Subsidiary or any
entity  controlled by or under common control with either Quantime or Subsidiary
has any  ownership  interest in any  competitor,  supplier or customer of either
Quantime or  Subsidiary or any property used in the operation of either of their
businesses.

         5.33 Employment  Matters.  That certain letter dated September 30, 1997
given  by the  Quantime  Insiders  to SPSS  (the  "Employment  Matters  Letter")
contains a list of all oral and written  employment or  consulting  contracts or
other agreements or arrangements providing for remuneration in excess of $75,000
per annum (or  (pound)47,500)  to which either Quantime or Subsidiary is a party
or by which either of them is bound, and all such contracts and arrangements are
in full force and effect. There have been no claims of defaults and, to the best
of the Quantime Insiders'  knowledge,  there are no facts or conditions which if
continued,  or with the giving of notice,  will result in a default  under these
contracts  or  arrangements.  Except  as set  forth on  Schedule  5.33,  neither
Quantime nor Subsidiary has registered a profit-related  pay scheme under Part V
Chapter III ICTA.  No past  employee of  Quantime or  Subsidiary  has a right to
return to work or has or may have a right to be reinstated  or re-engaged  under
the Employment Rights Act 1966 of England.

         5.34 Discrimination:  Occupational Safety; Labor. Except as provided in
Schedule 5.34, no person or party (including,  but not limited to,  governmental
agencies of any kind) has any claim,  or, to the best of the Quantime  Insiders'
knowledge,  basis for any  action or  proceeding,  against  either  Quantime  or
Subsidiary  arising out of any  statute,  ordinance  or  regulation  relating to
discrimination in employment or employment  practices or occupational safety and
health standards (including,  but without limiting the foregoing, The Fair Labor
Standards  Act,  as  amended;  Title VII of the  Civil  Rights  Act of 1964,  as
amended;  42 U.S.C. 1981 or the Age Discrimination in Employment Act of 1967, as
amended and applicable  English law),  which,  if upheld,  would have an adverse
effect  on the  assets,  properties,  businesses  or  conditions,  financial  or
otherwise, of either Quantime or Subsidiary. There is no pending or, to the best
of  the  Quantime  Insiders'  knowledge,   threatened  federal  or  state  equal
employment  opportunity  enforcement  action or labor dispute,  strike,  or work
stoppage  affecting any of businesses of either Quantime or Subsidiary.  Neither
Quantime nor Subsidiary has any collective bargaining or similar agreements, nor
do either of them have any obligation to bargain

                                     - 26 -

<PAGE>



with any labor organization as the representative of their employees,  and there
is  neither  pending,  or to the  best  of  the  Quantime  Insiders'  knowledge,
threatened,  any labor  dispute,  strike or work stoppage which affects or which
may affect Quantime's or Subsidiary's businesses or which may interfere with the
continued  operations of either  Quantime or Subsidiary.  Except as set forth on
Schedule  5.34, no present or former  employee of either  Quantime or Subsidiary
has any claim against  either of them for (a) overtime pay,  other than overtime
pay for the current payroll period,  (b) wages or salary (excluding  bonuses and
amounts  accruing  under pension and profit  sharing plans) for any period other
than  the  current  payroll  period,  (c)  vacation,  time off or pay in lieu of
vacation or time off, or (d) any material violation of any statute, ordinance or
regulation relating to minimum wages or maximum hours of work.

         5.35 Related  Transactions.  Except as set forth in Schedule  5.35, and
that certain letter agreement of even date herewith  between SPSS,  Quantime and
Edward Ross (the "Ross  Letter")  neither  Quantime nor  Subsidiary is currently
bound under any loan, contract, lease, commitment,  arrangement or understanding
with any of its  officers,  directors,  employees,  shareholders  or any  entity
controlled by or under common control with either Quantime or Subsidiary, except
normal compensation arrangements with officers,  directors and employees, all of
which are  terminable  by  Quantime or  Subsidiary  on not more than six months'
notice.  Except as set forth in Schedule 5.35,  neither  Quantime nor Subsidiary
has been a party to a  transaction  to which s320 or s330 of the  Companies  Act
1985 of England may apply.  No contract of service  exists  between  Quantime or
Subsidiary and a director or employee in relation to which the  requirements  of
s319 Companies Act 1985 of England have not been fulfilled.

         5.36 Brokers and Finders.  Neither  Quantime,  nor  Subsidiary  nor the
Quantime Insiders (nor any of their respective officers,  directors,  employees,
affiliates,  associates,  or family members), has employed any broker, finder or
investment  banker  or other  similar  person or entity  who is  entitled  to be
compensated in connection with this Agreement or the  transactions  contemplated
hereby.

         5.37  Questionable  Payments.  Neither  Quantime nor Subsidiary nor the
Quantime Insiders,  nor any director,  officer,  agent, employee or other person
associated  with or  acting  on behalf of  either  Quantime  or  Subsidiary  has
directly or indirectly: (a) used any corporate funds for unlawful contributions,
gifts,  entertainment or other unlawful expenses relating to political activity;
(b) made any  unlawful  payment  to  government  officials  or  employees  or to
political  parties or campaigns from corporate funds; (c) violated any provision
of the Foreign Corrupt Practices Act of 1977, as amended or similar English law;
(d)  established  or  maintained  any unlawful or  unrecorded  fund of corporate
monies or other assets;  (e) intentionally made any false or fictitious entry on
the books or records of  Quantime  or  Subsidiary;  (f) made any bribe,  payoff,
influence payment,  kickback or other unlawful payment; or (g) made any bribe or
other payment of a similar or comparable nature to any person or entity, private
or  public,  regardless  of form,  to obtain  favorable  treatment  in  securing
business or to obtain special concessions or treatment.
         5.38 Books and  Records.  The books and records of each of Quantime and
Subsidiary  have been  maintained in  accordance  with  commercially  reasonable
business and bookkeeping

                                     - 27 -

<PAGE>



practices and accurately reflect in all material respects the business,  assets,
properties, rights, obligations,  liabilities and operations of each of Quantime
and Subsidiary.

         5.39 Bank Accounts; Safe Deposit Boxes. Schedule 5.39 hereto sets forth
the names and locations of all banks in which either  Quantime or Subsidiary has
accounts or safe deposit  boxes and the names of all persons  authorized to draw
thereon or to have access thereto.

         5.40 Effect of Certificates. All representations and warranties made in
certificates  delivered by or on behalf of Quantime and the Quantime Insiders at
the Closing shall be deemed to be additional  representations  and warranties of
Quantime and the Quantime Insiders, respectively.

         5.41  Accounting  Matters.  To  the  best  of  the  Quantime  Insiders'
knowledge,  neither  Quantime nor Subsidiary nor the Quantime  Shareholders  has
through  the date of this  Agreement  taken or  agreed to take any  action  that
(without giving effect to this Agreement, the transactions  contemplated hereby,
or actions relating thereto,  or any taken or agreed to be taken by SPSS), based
upon  information or advice provided in writing to Quantime by KPMG Peat Marwick
LLP,  would  prevent SPSS from  accounting  for the business  combination  to be
effected hereby as a pooling of interests.  Quantime has provided information as
requested to KPMG Peat Marwick LLP regarding  Quantime's  ability to qualify for
pooling  of  interests  accounting  relating  to the  transactions  contemplated
hereunder including, without limitation, the amounts and timing of salary, bonus
and other  payments made by Quantime  during 1995,  1996 and 1997.  The Quantime
Insiders  presently  believe that the condition  precedent  contained in Section
11.5 hereof will be satisfied.

         5.42 Material  Misstatements or Omissions.  To the best of the Quantime
Insiders'  knowledge,  no  representation  or warranty by either Quantime or the
Quantime Insiders in this Agreement nor any documents, exhibits, certificates or
schedules  furnished to SPSS in connection with the closing of the  transactions
contemplated hereby, contains or will contain any untrue statement of a material
fact,  or omits or will omit to state any  material  fact  necessary to make the
statements or facts  contained  therein not misleading as of the date when made.
The copies of all  documents  furnished to SPSS  hereunder are true and complete
copies of the originals thereof in all material respects.

         5.43 Qualification of Representations.  Each of the representations and
warranties  in this  Article V are  qualified  and  supplemented  by each of the
schedules hereto.

         5.44  Knowledge.  As used in this  Article  V,  the  terms  "know"  and
"knowledge"  mean: (i) the actual knowledge of each of the Quantime  Insiders as
to such  facts or  matters,  (ii)  such  facts or  matters  of which  any of the
Quantime  Insiders have become aware in the ordinary course of performing  their
duties for  Quantime,  including  through  investigations  made by the  Quantime
Insiders in the ordinary  course of performing  their duties for  Quantime,  and
(iii) such other facts or matters as reasonably should have been known by Edward
Ross, Norman

                                     - 28 -

<PAGE>



Grunbaum or Richard  Kottler under all relevant  circumstances  considering  his
involvement in the affairs of Quantime.


                                   ARTICLE VI

                     REPRESENTATIONS AND WARRANTIES OF SPSS

         SPSS represents and warrants to Quantime and the Quantime  Shareholders
as follows:

         6.1  Organization  and  Qualification.   SPSS  is  a  corporation  duly
organized,  validly existing and in good standing under the laws of the State of
Delaware and has the corporate  power and authority to enter into this Agreement
and to consummate the transactions contemplated hereby.

         6.2  Authority.  The execution  and delivery of this  Agreement and the
consummation of the transactions  contemplated hereby have been duly and validly
authorized by SPSS and, no other  corporate  proceedings on the part of SPSS are
necessary  to  authorize  this  Agreement  or  to  consummate  the  transactions
contemplated  hereby.  This  Agreement  has been duly and validly  executed  and
delivered by SPSS and constitute legal, valid and binding agreements of SPSS.

         6.3 Consents and Approvals.  There is no authorization,  consent, order
or approval of, or notice to or filing with, any  individual or entity  required
to be  obtained  or given  in order  for  SPSS to  consummate  the  transactions
contemplated hereby and fully perform its obligations hereunder.

         6.4 Absence of Conflicts.  The execution,  delivery and  performance by
SPSS of this Agreement (including,  without limitation,  the offering,  issuance
and  sale  of the  Acquisition  Stock)  and  the  consummation  by  SPSS  of the
transactions  contemplated hereby will not, with or without the giving of notice
or the lapse of time, or both, (i) violate any provision of law,  statute,  rule
or regulation to which SPSS is or was subject,  (ii) violate any order, judgment
or decree which is or was  applicable to SPSS or (iii)  conflict with, or result
in a breach or  default  under,  any term or  condition  of the  Certificate  of
Incorporation  or By-Laws of SPSS or any agreement or other  instrument to which
SPSS is a party or by which SPSS is bound.

         6.5  Capitalization.  The authorized  capital stock of SPSS consists of
50,000,000  shares of Common Stock, of which,  as of the date hereof,  7,774,357
shares were issued and  outstanding  and  9,463,472  shares would be issued on a
fully  diluted  basis upon the  exercise  of all  outstanding  options and other
rights to acquire Common Stock of SPSS. All the issued and outstanding shares of
Common  Stock are validly  issued,  fully paid and  nonassessable.  There are no
options,  warrants or other rights, agreements or commitments obligating SPSS to
issue shares of its capital stock except for stock options to purchase shares of
Common Stock  pursuant to various SPSS option plans and  agreements and employee
rights to purchase Common Stock pursuant to SPSS' employee stock purchase plans.

                                     - 29 -

<PAGE>




         6.6 Reports and Financial Statement.  SPSS has filed all forms, reports
and other disclosure  documents required to be filed with the SEC since December
31,  1996  including:  (i) Annual  Report on Form 10-K for the fiscal year ended
December 31, 1996, (ii) its Quarterly Reports on Form 10Q for the quarters ended
March 31 and June 30, 1997; (iii) definitive proxy statement for the 1997 annual
meeting of stockholders of SPSS; and (iv) each other report or document provided
generally to the  stockholders  of SPSS since December 31, 1996, or incorporated
by reference in public filings by SPSS since such date  (collectively  the "SPSS
Reports").  As of their  respective  dates,  each SPSS Report (i) complied as to
form in all material respects with the applicable requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange  Act"),  and (ii) to the best of
SPSS'  knowledge,  did  not on the  date  of  filing  or the  date  as of  which
information  is set forth  therein,  contain any untrue  statement of a material
fact or omit to state a material fact required to be stated therein or necessary
to make the statements  therein,  in light of the circumstances under which they
were made,  not  misleading.  The audited and unaudited  consolidated  financial
statements of SPSS (the "SPSS Financial Statements") included or incorporated by
reference into such SPSS Reports have been prepared in accordance with generally
accepted  accounting  principles applied in a consistent basis (except as may be
indicated  therein or in the notes  thereto)  and fairly  present the  financial
position of SPSS and its consolidated subsidiaries, as of the dates thereof, and
the  results of their  operations  and  changes in  financial  position  for the
periods then ended subject, in the case of the unaudited  financial  statements,
to  normal  year-end  adjustments  which  are not  materially  adverse.  SPSS is
currently  eligible  to  register  the  resale of the SPSS  Common  Stock by the
Quantime Shareholders with the SEC on Form S-3.

         6.7  Litigation  and  Administrative  Proceedings.  There is no  claim,
action,   suit,   proceeding  or  investigation  in  any  court  or  before  any
governmental or regulatory authority pending or, to the best of SPSS' knowledge,
threatened  against or affecting SPSS or which seeks to enjoin or obtain damages
in respect of the transactions  contemplated  hereby. SPSS does not know or have
any reason to know of any basis for any such claim, action, suit,  proceeding or
investigation.

         6.8 Brokers and  Finders.  Neither  SPSS nor its  officers,  directors,
employees,  affiliates,  associates  or family  members has employed any broker,
finder or investment  banker,  who is entitled to be  compensated  in connection
with this Agreement or the transactions contemplated hereby.

         6.9  Acquisition  Stock.  The  Acquisition  Stock,  when  delivered  in
accordance with this Agreement, shall be duly authorized,  validly issued, fully
paid and nonassessable.

         6.10 Pooling of Interests Accounting. SPSS has consulted with KPMG Peat
Marwick LLP, as its independent  auditors,  regarding the ability to qualify for
pooling  of  interests  accounting  relating  to the  transactions  contemplated
hereunder. Such auditors have not stated to SPSS any material doubt that pooling
of  interests  accounting  will be available  with  respect to the  transactions
contemplated hereunder.  SPSS believes that the condition precedent contained in
Section 11.5 hereof will be satisfied.

                                     - 30 -

<PAGE>




         6.11  Dividends and  Distributions.  From December 31, 1996 to the date
hereof, SPSS has not declared or paid any dividends on any shares of its capital
stock nor has it made any other payments or distributions to its stockholders.

         6.12 NASDAQ Authorization.  The SPSS Common Stock to be issued pursuant
to this  Agreement  will, on the date  required by NASDAQ,  be registered on the
NASDAQ Stock Market's National Market, subject to official notice of issuance.

         6.13  Material  Misstatements  or  Omissions.  To  the  best  of  SPSS'
knowledge,  the SPSS Reports,  together with the private placement memorandum to
be delivered to the  Shareholders by SPSS in connection with this Agreement,  do
not as of the date  hereof,  and will not, as of the Closing  Date,  contain any
untrue statement of a material fact, or omit any material fact necessary to make
the  statements or facts  contained  therein not  misleading as of the date when
made.

         6.14  Knowledge.  As used in this  Article  VI,  the terms  "know"  and
"knowledge" mean: (i) the actual knowledge of each of the Executive  Officers of
SPSS as to such facts or matters, (ii) such facts or matters of which any of the
Executive  Officers  of  SPSS  have  become  aware  in the  ordinary  course  of
performing their duties for SPSS,  including through  investigations made by the
Executive Officers of SPSS in the ordinary course of performing their duties for
SPSS, and (iii) such other facts or matters as reasonably should have been known
by the Executive Officers of SPSS under all relevant  circumstances  considering
their involvement in the affairs of SPSS.


                                   ARTICLE VII

                              INTENTIONALLY OMITTED


                                  ARTICLE VIII

                     COVENANTS OF THE QUANTIME SHAREHOLDERS

         The Quantime Shareholders, jointly and severally, covenant as follows:

         8.1 Consents and Approvals. The Quantime Shareholders, individually and
on  behalf  of  Quantime,  agree  to use all  reasonable  efforts  to  make  all
registrations,  filings  and  applications,  and give all notices and obtain all
governmental and other consents,  approvals, orders,  qualifications and waivers
necessary  for the  consummation  of the  transactions  contemplated  by, or the
performance  by  Quantime  and  the  Quantime   Shareholders  of  any  of  their
obligations under, this Agreement,  or which may become reasonably  necessary or
desirable in connection  with any of the foregoing,  in each case upon terms and
conditions  reasonably  satisfactory  to SPSS  and  its  counsel.  The  Quantime
Shareholders waive any pre-

                                     - 31 -

<PAGE>



emption  rights and rights of first  refusal in relation to the Shares,  whether
under the Articles of Association of Quantime or otherwise.

         8.2  Closing  Returns.  To  the  extent  Closing  Returns  (hereinafter
defined) are required under the laws of the United States or the United Kingdom,
the Quantime Shareholders will cooperate with SPSS to file on a timely basis all
income tax returns of Quantime  and  Subsidiary  due after the Closing  Date and
attributable to periods ending on or before the Closing Date,  including without
limitation,  United  States  federal  and state and  United  Kingdom  income tax
returns for the short period ending on the Closing Date (the "Closing Returns").
SPSS shall  direct the  preparation  and filing of the Closing  Returns,  to the
extent same are so required;  provided,  however, that the Quantime Shareholders
shall be  responsible  for  paying  any  taxes to the  extent  of the  indemnity
therefor.

         8.3      Access to Information.

         (a) The  Quantime  Insiders,  individually  and on behalf of  Quantime,
shall allow SPSS to have complete  access at all reasonable  times to Quantime's
officers,  employees,  agents, properties,  books and records, and shall furnish
SPSS all financial,  operating and other data and  information as SPSS,  through
its officers, employees or agents, may reasonably request.

         (b) No investigation  pursuant to this Section 8.3 shall affect, add to
or subtract from any  representations  or  warranties  or the  conditions to the
obligations of the parties hereto to effect the Acquisition.

         8.4 Cost of Shares.  Upon request by SPSS,  the  Quantime  Shareholders
will provide SPSS with information relating to, and including, the consideration
paid  by the  Quantime  Shareholders  for  the  Shares  owned  by  the  Quantime
Shareholders at the time of acquisition of such Shares.

         8.5 Further  Assurances.  The Quantime  Shareholders shall from time to
time,  at the  request  of SPSS and  without  further  cost or  expense to SPSS,
execute and deliver such other documents and take such other actions as shall be
reasonably  necessary  or  appropriate  to  consummate  fully  the  transactions
contemplated hereby.

         8.6  Documents.  The Quantime  Shareholders,  and each of them, and the
Quantime  Insiders,  and each of them,  shall not  circulate or  distribute,  to
England  or  otherwise,   this  Agreement  and  the  related  private  placement
memorandum and documents attached thereto and made a part hereof and thereof, to
any person who is a resident or domiciled in the United Kingdom.

         8.7 Power of Attorney.  Pending the entry of SPSS onto Quantime's share
register,  each of the Quantime  Shareholders  will grant to SPSS an irrevocable
power of

                                     - 32 -

<PAGE>



attorney  to exercise  all rights  relating to the Shares to the same extent and
with the same effect as if SPSS had been entered on such share register.


                                   ARTICLE IX

                                COVENANTS OF SPSS

         SPSS covenants as follows:

         9.1 Retention of Records.  After the Closing Date, SPSS will retain all
of  Quantime's  and  Subsidiary's  books  and  records  in their  possession  in
accordance  with SPSS' policies for retention of its own books and records,  and
upon reasonable notice and during SPSS' regular business hours and at reasonable
intervals,  will provide the Quantime Shareholders,  and their respective agents
and  representatives  designated  in writing,  access to such books and records,
concerning periods prior to the Closing Date.

         9.2  Further  Assurances.  SPSS  shall  from time to time  execute  and
deliver such other  documents and take such other actions as shall be reasonably
necessary or  appropriate  to  consummate  fully the  transactions  contemplated
hereby.

         9.3  Release  of  Guarantee.  SPSS  shall use  commercially  reasonable
efforts  to  secure  the  release  of  Edward  Ross  from his  guarantee  of the
obligations  of Quantime  with respect to the mortgage loan obtained by Quantime
to finance the acquisition of real property located at 67 Maygrove Road, London;
provided,  however,  in the event SPSS is unable to secure  such  release,  SPSS
shall  indemnify  Edward Ross with respect to his  obligations  thereunder.  The
Quantime  Shareholders shall cooperate with SPSS in SPSS' efforts to secure such
release.

         9.4 Sales  Tax.  SPSS  shall use  commercially  reasonable  efforts  to
collect from Quantime customers previously  uncollected New York state sales and
use tax and other previously  uncollected state sales and use tax where Quantime
is not currently in compliance.

         9.5 Cooperation-Audits.  In connection with the preparation of returns,
audit  examinations and any administrative or judicial  proceedings  relating to
tax liabilities  imposed on Quantime or the Subsidiaries (or either of them) for
pre-Closing  periods,  SPSS and the Quantime  Insiders will cooperate fully with
each other,  SPSS shall promptly notify the Quantime  Insiders of any inquiries,
claims or  assessments,  audits  or  similar  events  with  respect  to taxes in
relation  to  pre-Closing  periods.  SPSS  shall  have  exclusive  authority  to
represent  the  interests of Quantime and the  Subsidiaries  with respect to any
proceeding  before  any  taxing  authority  or any court and shall have the sole
right to extend or waive the statute of limitations  and to control the defense,
compromise or resolution  of any Quantime tax matters.  However,  SPSS shall not
enter into any settlement of any contest or otherwise  compromise any issue that
affects or may affect the tax liability of the Quantime Insiders

                                     - 33 -

<PAGE>



with respect to any pre-Closing  period without the prior written consent of the
Quantime Insiders,  which consent shall not be unreasonably withheld. SPSS shall
allow the  Quantime  Insiders  to  observe  any  proceeding  and shall  keep the
Quantime Insiders reasonably  informed with respect to the commencement,  status
and nature of any  Quantime  tax  matters.  SPSS  shall in good faith  allow the
Quantime Insiders to make comments to SPSS regarding the conduct of or positions
taken in any such proceeding.


                                    ARTICLE X

                                MUTUAL COVENANTS

         Each of the parties hereto covenants as follows:

         10.1  Confidentiality.  Except as otherwise required by law or judicial
or administrative  proceedings,  including  proceedings between the parties with
respect to the  transactions  contemplated  hereby,  and then only to the extent
specifically  required by such proceedings,  and except for public announcements
on the advice of counsel,  each of the parties  agrees not to (i)  disclose  any
Confidential  Information (defined hereinbelow) of any other party, or the terms
of this  Agreement,  to any  individual  or entity  (other  than its  directors,
officers,  employees,  agents  and  representatives  with a need  to  know  such
Confidential  Information in order to consummate the  transactions  contemplated
hereby and then only if reasonable steps are taken with such parties to preserve
the  confidentiality  thereof) or (ii) use any Confidential  Information for any
purpose  other than,  with  respect to SPSS  operating  the  acquired  business.
"Confidential  Information" shall mean any secret or confidential information of
the  software  business  of  Quantime  or SPSS,  including,  but not limited to,
customer information,  financial information,  technical information, details or
information  concerning contracts,  trade secrets,  marketing information or any
other  data,  information  or  proprietary  information  of or  relating  to the
software  business  of  Quantime  or SPSS or any  affiliate  thereof,  or  their
respective products or services. No obligations shall exist under this Agreement
with respect to Confidential  Information that (i) is publicly known at the time
of the  disclosure or becomes  publicly known through no wrongful act or failure
of Quantime,  the Quantime  Shareholders  or SPSS,  (ii) is disclosed by a third
party which does not have a confidential  relationship with either Quantime, the
Quantime  Shareholders  or SPSS,  and which was  rightfully  acquired by a third
party,  or (iii) is legally  compelled to be  disclosed  pursuant to a subpoena,
summons,  order or other  judicial or  governmental  process,  provided that the
parties hereto provide  prompt notice of any such  subpoena,  summons,  order or
other judicial or governmental process to such other parties of the Confidential
Information, so as to allow the parties an opportunity to oppose such process.

         10.2  Consistent Tax  Reporting.  The parties agree for tax purposes to
report  the  transactions  contemplated  by this  Agreement,  and to  treat  any
subsequent related transactions or items, in a manner consistent in all respects
with the terms and provisions of this

                                     - 34 -

<PAGE>



Agreement.  Each party shall cooperate with the other parties as appropriate for
all relevant  tax purposes  relating to the  transactions  contemplated  by this
Agreement.

         10.3  Cooperation.  The  parties  agree  to  cooperate  for  all  other
reasonable  purposes  after the Closing,  including with respect to any audit by
any taxing  authority  of any of the income tax or other tax returns of Quantime
or Subsidiary.

         10.4 Non-U.K.  Offering.  The parties hereto acknowledge and agree that
no offer or sale of securities  under this Agreement shall be made in the United
Kingdom.


                                   ARTICLE XI

             CONDITIONS TO OBLIGATIONS OF THE QUANTIME SHAREHOLDERS

         The  obligations  of  the  Quantime   Shareholders  to  consummate  the
transactions  contemplated  hereby is subject to the satisfaction on or prior to
the Closing Date of the following conditions:

         11.1  Representations  and  Warranties.  SPSS  shall  certify  that the
representations  and  warranties of SPSS shall be true and accurate on and as of
the  Closing  Date  with the same  effect  as though  such  representations  and
warranties had been made on and as of such date.

         11.2  Performance.  SPSS shall have performed in all material  respects
all covenants and agreements required by this Agreement to be performed by it on
or before the Closing Date.

         11.3 Filings;  Consents:  Waiting Periods. All registrations,  filings,
applications,  notices, transfers,  consents, approvals, orders, qualifications,
waivers and other actions listed on Schedule 6.3 hereto or otherwise required of
any persons or governmental  authorities or private  agencies in connection with
the consummation of the transactions contemplated by and the performance by SPSS
of its obligations under this Agreement shall have been made or obtained and all
applicable waiting periods shall have expired or been terminated.

         11.4 No Injunction.  At the Closing Date, there shall be no injunction,
restraining  order or decree of any nature of any court or governmental  body in
effect  which  restricts  or  prohibits  the  consummation  of the  transactions
contemplated by this Agreement.

         11.5  Pooling.  No  action  shall  have  been  taken by any  government
authority or any statute,  rule,  regulation or order,  promulgated or issued by
any  governmental  authority,  or any  proposal  made for any such action by any
governmental  authority which is reasonably  likely to be put into effect,  that
would prevent SPSS from accounting for the transactions  contemplated  hereunder
as a pooling of interests.

                                     - 35 -

<PAGE>




         11.6 Legal  Opinion.  The  Quantime  Insiders  shall have  received the
written opinion,  dated the Closing Date, of Ross & Hardies substantially in the
form attached hereto as Exhibit B.

         11.7 Median Closing Price.  The median  per-share  closing price of the
Common Stock during the 20-day  period  immediately  preceding  the Closing Date
shall be 24-1/2 or greater.


                                   ARTICLE XII

                        CONDITIONS TO OBLIGATIONS OF SPSS

         The  obligation of SPSS to  consummate  the  transactions  contemplated
hereby is subject to the  satisfaction  on or prior to the  Closing  Date of the
following conditions:

         12.1  Representations  and  Warranties.  The  Quantime  Insiders  shall
certify as of the Closing Date that the  representations  and  warranties of the
Quantime  Insiders shall be true and accurate on and as of the Closing Date with
the same effect as though such  representations  and warranties had been made on
and as of such date.

         12.2 Performance. The Quantime Shareholders shall have performed in all
material respects all covenants and agreements  required by this Agreement to be
performed by it on or before the Closing Date.

         12.3 Filings:  Consents;  Waiting Periods. All registrations,  filings,
applications,  notices, transfers,  consents, approvals, orders, qualifications,
waivers and other actions of any kind listed on Schedule 5.5 hereto or otherwise
required  of any  persons or  governmental  authorities  or private  agencies in
connection with the  consummation of the  transactions  contemplated by, and the
performance  by the  Quantime  Shareholders  of  their  obligations  under  this
Agreement  shall have been made or obtained and all applicable  waiting  periods
shall have expired or been  terminated,  in each case upon terms and  conditions
reasonably satisfactory to SPSS.

         12.4 No  Litigation.  No  action,  suit or  proceeding  shall have been
instituted by any person or entity, or threatened by any governmental  agency or
body,  before  a  court  or  governmental  body,  to  restrain  or  prevent  the
consummation  of the  transactions  contemplated  by, or the  performance by the
Quantime  Shareholders of their obligations under, this Agreement or which seeks
other relief with respect to any of such  transactions or which could reasonably
be expected to have a materially  adverse effect on the  businesses,  results of
operations,  assets,  financial  condition or  prospects  of either  Quantime or
Subsidiary. At the Closing Date, there shall be no injunction, restraining order
or decree of any  nature of any court or  governmental  agency or body in effect
which restrains or prohibits the consummation of the  transactions  contemplated
by this Agreement.

                                     - 36 -

<PAGE>




         12.5 Legal Opinion. SPSS shall have received the written opinion, dated
the  Closing  Date,  of  Thompson  Hine & Flory LLP,  substantially  in the form
attached hereto as Exhibit C.

         12.6 Due Diligence Investigation.  SPSS shall have no duty to close the
transactions contemplated hereby if:

                  (a) any one of the following  shall have a net negative effect
of $250,000 or more and the Quantime  Insiders  have not cured such net negative
effect to a level below  $250,000  before the Closing Date,  provided,  however,
that any such lower amount shall be included in the  aggregate  amount set forth
in Section  12.6(b)  hereof:  (i) the net  negative  impact of current  customer
cancellations  which have a revenue  impact on Quantime's  budget;  (ii) the net
negative impact of customer  cancellations  reasonably  expected to occur in the
future;  (iii)  the  aggregate  of  uncollectible  accounts  receivable,  net of
reserves; (iv) the aggregate of unexpected expenses not identified on Quantime's
budget for fiscal year 1998;  (v)  operating  income for the most recent  period
available at the Closing Date as compared to  Quantime's  budget for fiscal year
1998;  or (vi) any  single  breach of a  representation,  warranty  or  covenant
contained in this Agreement; or

                  (b)  the  total  of all  breaches  of the  Quantime  Insider's
representations,  warranties or covenants contained herein plus the net negative
impact of items (i), (ii),  (iii),  (iv) and (v) in  Subparagraph  12.6(a) above
shall have an  aggregate  of  $500,000 or more in  negative  effect,  net of any
positive effects not reflected on Quantime's  budget, and Quantime has not cured
such net negative effect to a level below $500,000 before the Closing Date; or

                  (c)  the  tax  accruals  reflected  in  Quantime's   financial
statements  for fiscal year 1996/1997  (other than amounts  relating to New York
state and other state sales and use taxes and state income taxes where  Quantime
is not in  compliance,  and interest and  penalties  relating  thereto up to and
including  March 31, 1997),  are at least $100,000 lower than the amount of such
accruals that should have been made.

         12.7  Pooling.  SPSS shall have  received  from KPMG Peat Marwick LLP a
letter dated as of the Closing Date, in form and substance reasonably acceptable
to SPSS,  and stating  that the  transactions  to be effected  hereunder  may be
accounted for as a pooling of interests by SPSS for purposes of its consolidated
financial   statements  under  generally  accepted  accounting   principles  and
applicable  SEC  rules  and  regulations.  No action  shall  have been  taken by
Quantime,  the Quantime  Shareholders,  any government authority or any statute,
rule, regulation or order,  promulgated or issued by any governmental authority,
or any proposal made for any such action by any governmental  authority which is
reasonably likely to be put into effect, that would prevent SPSS from accounting
for the transactions contemplated hereunder as a pooling of interests.

         12.8  Affiliates  and  Certain  Stockholders.  (a) Prior to the Closing
Date, the  Quantime  Insiders  shall  deliver  to  SPSS a letter identifying all
persons who are "affiliates" of

                                     - 37 -

<PAGE>



Quantime   for   purposes   of   applicable    interpretations   regarding   the
pooling-of-interests  method of accounting.  The Quantime Insiders shall use its
best  efforts  to cause  each such  person to deliver to SPSS on or prior to the
Closing Date a written agreement substantially in the form attached as Exhibit D
hereto.  If the  Acquisition  would otherwise  qualify for  pooling-of-interests
accounting  treatment,  shares of SPSS Common Stock issued to such affiliates of
Quantime in exchange for Shares of Quantime shall not be transferable until such
date as financial results covering at least thirty (30) days of post-Acquisition
combined  operations of SPSS and Quantime have been published within the meaning
of Section  201-01 of the SEC's  Codification  of Financial  Reporting  Policies
(such  date  is  hereinafter  referred  to  as  the  "Earnings  Release  Date"),
regardless  of whether each such  affiliate  has provided the written  agreement
referred to in this  Section  12.8,  except to the extent  permitted  by, and in
accordance with, Accounting Series Release 135 and Staff Accounting Bulletins 65
and 76. Any  Shares of SPSS held by such  affiliates  shall not be  transferable
prior to the Earnings  Release Date,  regardless of whether each such  affiliate
has provided the written  agreement  referred to in this Section  12.8,  if such
transfer,  either alone or in the aggregate with other  transfers by affiliates,
would  preclude  SPSS'  ability to account for the  business  combination  to be
effected by the  Acquisition  as a pooling of interests.  The Quantime  Insiders
shall not cause or permit  Quantime to register the transfer of any  certificate
representing  capital  stock  of  Quantime,  unless  such  transfer  is  made in
compliance  with the foregoing.  Except as provided in Section 4.1 hereof,  SPSS
shall  not be  required  to  maintain  the  effectiveness  of  any  registration
statement under the Securities Act for the purposes of resale of the SPSS Common
Stock by such affiliates.

         12.9 Delivery. At the Closing, the documents referenced in Article XIII
shall be delivered to SPSS.

         12.10 Median Closing Price. The median  per-share  closing price of the
Common Stock during the 20-day  period  immediately  preceding  the Closing Date
shall be 37-1/2 or less.

         12.11 Meeting of Quantime Board of Directors.  SPSS shall have received
minutes of  Quantime's  board of  directors  with  respect to a meeting  held in
accordance  with  applicable  law and  Quantime's  Articles of  Association  and
Memorandum of  Association  at which meeting such persons as SPSS  nominates are
appointed additional directors,  the stock transfers referred to in Section 13.1
hereof are approved  (subject to stamping) and the  resignations  referred to in
Section 13.7 are approved.


                                     - 38 -

<PAGE>
                                  ARTICLE XIII

                               CLOSING DELIVERIES

         The following deliveries shall be made at the Closing:

         13.1 Delivery of Share  Certificates and Stock Transfers.  The Quantime
Shareholders  shall  deliver to SPSS bearer  warrants in respect of the Warrants
(as well as endorsements of the Warrants,  as required),  the share certificates
and related signed stock transfers in respect of the other Shares.

         13.2  Delivery of Deed of Covenant  and other  Closing  Documents.  The
Quantime  Shareholders  shall  deliver to SPSS the executed Deed of Covenant and
Stock  Pledge and Escrow  Agreement,  and all other  instruments  and  documents
required hereunder.

         13.3 Legal Opinions.  The Quantime Insiders shall cause to be delivered
to SPSS the written legal opinion of Thompson Hine & Flory LLP, in substantially
the form  attached  hereto as  Exhibit C. SPSS shall  cause to be  delivered  to
Quantime the written legal opinion of Ross & Hardies,  in substantially the form
attached hereto as Exhibit B.

         13.4 Consents. The Quantime Insiders shall deliver to SPSS all consents
and  approvals  required in  connection  with the  performance  by the  Quantime
Shareholders  of their  respective  obligations  under  this  Agreement  and the
consummation  by the  Quantime  Shareholders,  Quantime  and  Subsidiary  of the
transactions contemplated hereby and thereby. SPSS shall deliver to Quantime all
consents and approvals  required in connection  with the  performance by SPSS of
its  obligations  under  this  Agreement  and  the  consummation  by SPSS of the
transactions contemplated hereby and thereby.

         13.5 Closing  Certificates.  The Quantime  Insiders shall  deliver,  or
cause to be delivered,  to SPSS such closing  certificates and documents as SPSS
and its counsel shall  reasonably  request.  SPSS shall deliver,  or cause to be
delivered,  to Quantime such closing  certificates and documents as Quantime and
its counsel shall reasonably request.

         13.6 Charter: Good Standing  Certificates.  The Quantime Insiders shall
cause to be delivered to SPSS Quantime's  Memorandum of Association,  as amended
to the  Closing  Date,  and as  filed  with  the  United  Kingdom  Registrar  of
Companies, as well as from each other jurisdiction in which Quantime is required
to be qualified.  The Quantime  Insiders  shall cause  Subsidiary to deliver its
Certificate of Incorporation certified by the Secretary of State of the State of
Delaware,  as well as good standing and tax certificates (to the extent such tax
certificates are issued from such jurisdictions generally) from the Secretary of
State of the States of Delaware and Ohio, and each other  jurisdiction  in which
Subsidiary  is  incorporated  and qualified to do business.  Mexican  Subsidiary
shall  deliver  Articles of  Incorporation  (or its  equivalent as issued in the
jurisdiction of its  incorporation),  certified by the appropriate  authority in
the  jurisdiction  of its  incorporation,  as  well  as  good  standing  and tax
certificates  (or their  equivalent)  (to the extent such tax  certificates  are
issued from such jurisdiction  generally),  and from each other  jurisdiction in
which  Mexican  Subsidiary  is  qualified  to do  business.  SPSS shall  deliver
Articles of  Incorporation  certified by the  Secretary of State of the State of
Delaware,  as well as good standing and tax  certificates  from the Secretary of
State of the States of Delaware and Illinois.


                                     - 39 -

<PAGE>



         13.7 Resignations of Quantime's Officers and Directors. SPSS shall have
received such  resignations from such officers and directors of Quantime and the
Subsidiaries  as  SPSS  shall  request,  under  seal  and in  such  form as SPSS
reasonably  requires,  confirming  that they have no claim  against  Quantime or
Subsidiary in any form whatsoever  excluding claims for compensation in ordinary
course of business, operative as of the Closing Date.

         13.8 Covenant Not To Compete.  The Quantime  Insiders shall execute and
deliver to SPSS  Covenants  Not To Compete in  substantially  the form  attached
hereto as Exhibit E.

         13.9 Company  Records.  Quantime's  Insiders  shall deliver to SPSS the
statutory  books,  books of account and  documents of record of Quantime and the
Subsidiaries,  complete  and up to date,  and their  certificates  and common or
corporate  seals,  the title deeds to all real estate  owned by Quantime and the
Subsidiaries  (or any of them),  the documents of title  relating to investments
owned by each of them,  the current  checkbooks  of each of them,  together with
current  statements of all bank accounts and the appropriate  forms to amend, in
such manner as SPSS  requires,  the  mandates  given to the relevant  bank,  and
written  confirmation  from the Quantime  Insiders  that there are no subsisting
guarantees given by Quantime or the Subsidiaries (or either of them) in favor of
the Quantime  Insiders and that,  after complying with the succeeding  sentence,
none of the Quantime  Insiders will be indebted to Quantime or the  Subsidiaries
(or either of them).  The  Quantime  Shareholders  shall  repay,  or cause to be
repaid,  all amounts owing on the Closing Date to Quantime and the  Subsidiaries
from the  directors of any of them and from the Quantime  Shareholders,  whether
due for payment or not.

         13.10 Unconditional  Consent of Directors.  The Quantime Insiders shall
deliver to SPSS,  in form and  substance  reasonably  satisfactory  to SPSS,  an
unconditional   consent  in  writing  of  all  the   directors  of  Quantime  in
substantially the form attached hereto as Exhibit F.

         13.11  Resolutions  of Certain  Quantime  Shareholders.  Each  Quantime
Shareholder  that is not an individual or is not acting  individually and on his
or her own  behalf,  shall  execute and  deliver to SPSS  certified  resolutions
authorizing  the  execution and delivery by such  Quantime  Shareholder  of this
Agreement and the documents  related  thereto,  and performance by such Quantime
Shareholder of the transactions contemplated hereby and thereby.

          13.12 Further  Assurances.  Each party shall  deliver,  or cause to be
delivered,  all other documents required to be delivered by it at the Closing to
the other  party and shall take all other  actions  which the other  parties may
reasonably  determine  necessary or appropriate in order to consummate fully the
transactions contemplated hereby.

                                     - 40 -

<PAGE>



                                   ARTICLE XIV

                          SURVIVAL AND INDEMNIFICATION

         14.1  Survival  of  Representations  and  Warranties:   Covenants.  All
representations and warranties  contained herein or made in writing by any party
in connection  herewith  shall survive the Closing Date until the earlier of the
first  anniversary  of the Closing Date or the Audit Release Date. All covenants
contained herein shall survive until performed fully.

         14.2     Indemnification.

         (a) Subject to and as modified by  Sections  14.2(b) and  14.2(c),  the
Quantime  Insiders  agree to indemnify and hold SPSS and its  affiliates and the
respective officers, directors, employees, agents and representatives of each of
the foregoing  (collectively,  the "Representatives")  harmless from and against
65.548%  any  and  all  costs,  expenses,  losses,  claims,  damages,  interest,
penalties,  fines,  liabilities  and  obligations  whenever  arising or incurred
(including,   without   limitation,   amounts  paid  in  settlement,   costs  of
investigation  and attorneys'  fees and expenses)  (individually,  a "Loss," and
collectively,  "Losses")  arising  out of or  relating  to (i) any breach of any
representation  or  warranty  made by the  Quantime  Insiders  and (A) set forth
herein or in any related schedule or (B) set forth in any closing certificate or
other document entered into or delivered by the Quantime  Insiders in connection
with this  Agreement and  identified in Article XIII hereto;  (ii) any breach of
any covenant, obligation or agreement of the Quantime Insiders contained in this
Agreement,  or set forth in any closing  certificate or other  document  entered
into or  delivered  in  connection  with this  Agreement;  (iii) any  fraudulent
representation  or  intentional  misrepresentation  on the part of the  Quantime
Insiders;  notwithstanding  the  foregoing,  in the  event of any such  fraud or
misrepresentation  by any Quantime  Insider,  the Quantime Insider who committed
same shall indemnify the Representatives with respect thereto, and the remaining
Quantime  Insiders,  provided  they did not directly or  indirectly  commit such
acts, shall not be liable under this Section  14.2(A)(iii),  and (iv) successful
assertion  by  any  third  party  of  rights  relating  to  the  conception  and
development  of  the  Intellectual  Assets  on  behalf  of  either  Quantime  or
Subsidiary,  the  failure  of  either  Quantime  or  Subsidiary  to  hold  full,
effective, exclusive and original ownership of all intellectual property thereby
arising,  or the  failure of either  Quantime  or  Subsidiary  to have  received
executed  appropriate  instruments of assignment,  in full force and effect,  in
favor of  either  Quantime  or  Subsidiary,  as  assignee,  conveying  to either
Quantime  or  Subsidiary  full,   effective  and  exclusive   ownership  of  all
intellectual property thereby arising; (v) any and all tax liability of Quantime
associated with or resulting from Quantime's  prior actions relating to payments
in kind and  independent  contractors;  and (vi) any tax liability or obligation
asserted  against  Quantime or SPSS and arising out of or related to tax periods
ending on or prior to the fiscal year ended March 31, 1997 or  Quantime's or the
Quantime Insiders' actions or omissions.

         (b)  Subject  to  Section  14.2(c),  the  Quantime  Insiders  agree  to
indemnify and hold SPSS and its affiliates and Representatives harmless from and
against any and all Losses

                                     - 41 -

<PAGE>



relating to (i) any Taxes of or incurred  by  Quantime  for any taxable  year or
other period up to and including the fiscal year ended March 31, 1996;  (ii) any
New York State sales and use taxes,  other state sales and use taxes and related
state income taxes where Quantime is not in  compliance,  interest and penalties
on the foregoing  for periods up to and  including  March 31, 1997 to the extent
that 65.548% of such  amounts  exceed  $262,192,  net of the tax benefit of such
state sales and use taxes,  interest and penalties (excluding the tax benefit on
65.548% of the first  $163,870 of such expense);  (iii) any Taxes,  interest and
penalties  assessed  against  Quantime  with  respect  to  payments  made  to an
independent   contractor  or  consultant  of  Quantime,  if  such  payments  are
recharacterized  by any taxing authority as payments made by Quantime in respect
of an  employment  relationship  with  Quantime,  except for any taxes  owing in
respect of the National Health  Insurance of England;  and (iv) the disallowance
of any  deductions  taken by Quantime in relation to any Plan.  For  purposes of
Subparagraph  14.2(a)(vi)  or  this  Subparagraph  14.2(b),  in the  case of any
taxable period  beginning before and ending after the Closing Date, for purposes
of determining the amount of liability for Taxes  attributable to the portion of
the  taxable  period  ending on or before the Closing  Date:  (A) in the case of
sales,  use,  payroll or excise  Taxes or Taxes based upon or related to income,
such portion of the taxable period shall be deemed to be a separate taxable year
and the  Shareholders'  liability shall include actual  liability of Quantime as
well as the impact on Quantime of disallowances  and loss of Reliefs,  and shall
be  determined by taking into account all items of income,  gain,  consideration
for  supplies  of goods  and  services,  loss,  deduction  or  credit on a basis
consistent  with that  employed in  preparing  the federal  income tax return of
Quantime for the taxable year ending on the Closing Date and the relevant  state
or local tax return for prior  years,  and (B) in the case of other  Taxes,  the
Quantime Insiders' liability shall equal a pro-rata portion of the liability for
taxes (which shall include actual liability of Quantime as well as the impact on
Quantime of  disallowances  or loss of reliefs)  for the entire  taxable  period
based on the  ratio of the  number of days from the  beginning  of such  taxable
period  through the Closing  Date to the total  number of days  included in such
taxable period.

         (c) The aggregate of all indemnities to be provided to SPSS pursuant to
this Article XIV (an "Indemnification Payment") shall not exceed an amount equal
to ten percent  (10%) of the Total  Shares  (the "Cap") and any  Indemnification
Payment to be made to SPSS shall be satisfied solely out of the Escrowed Shares.
Except as otherwise  specifically  set forth herein,  the indemnity  provided in
this Agreement  shall not apply until the cumulative  amount of all Losses shall
exceed $65,548 in the aggregate (the "Basket").  If the Basket is exceeded, SPSS
shall be entitled  to the excess,  if any, of the full amount of all such claims
over the Basket, subject to the Cap.  Notwithstanding the foregoing,  the Basket
and the Cap shall not apply to the  indemnities  provided in this  Agreement for
breach  of any  confidentiality  obligation  contained  herein  or in any  other
closing document, or any fraud, willful misconduct, gross negligence or criminal
action  on the part of  Quantime,  and  notwithstanding  anything  contained  or
implied in this Agreement,  the indemnity  obligations set forth herein above in
this sentence shall survive the Closing without limitation except as provided by
the applicable  statute of limitations  (including any extension of said statute
of  limitations);  provided,  however,  that  the Cap  shall  not  apply  to any
liability under

                                     - 42 -

<PAGE>



Subparagraph  14.2(b)(ii)  (although  the Basket  shall apply to such  liability
under  Subparagraph  14.2(b)(ii)),  and the indemnity  obligations  set forth in
Subparagraph  14.2(b)(ii)  shall  survive  the  Closing  for a period  of twelve
months.  In addition,  the indemnity  provided for in  Subparagraph  14.2(b)(ii)
shall be paid with SPSS Common Stock valued at the closing  price of SPSS Common
Stock on  September  30, 1997,  to the extent  Quantime  Shareholders  hold such
stock, otherwise in cash. Indemnification Payments to be made hereunder relating
to tax  liabilities  of Quantime  shall be paid to SPSS in amounts equal to such
liability, subject to the terms hereof.

         (d) The Quantime  Insiders  shall have no  indemnification  obligations
with  respect to tax amounts  attributable  to (i) the period from April 1, 1997
until the Closing Date, or (ii) the fiscal year ended March 31, 1997.

         (e) None of the information  supplied by Quantime or the  Subsidiaries,
or their  professional  advisors to the  Quantime  Shareholders  or the Quantime
Insiders, or their respective agents, representatives or advisors, in connection
with this Agreement,  the  representations  and warranties  (including,  without
limitation,  the contents of the schedules and exhibits hereto), or otherwise in
relation to the business or affairs of Quantime and the  Subsidiaries,  shall be
deemed  a  representation  as  to  the  accuracy  thereof  by  Quantime  or  the
Subsidiaries  (or either of them) to the Quantime  Shareholders  or the Quantime
Insiders  (or any of  them),  and the  Quantime  Shareholders  and the  Quantime
Insiders waive the claims against Quantime and the Subsidiaries which they might
otherwise have with respect thereto.

         14.3  Indemnification  by SPSS.  SPSS agrees to indemnify  and hold the
Quantime  Insiders and its affiliates and the  respective  officers,  directors,
employees, agents and representatives of each of the foregoing harmless from and
against any and all Losses relating to (i) any breach of any  representation  or
warranty of SPSS set forth  herein or in any related  schedule,  or set forth in
any closing  certificate or other document  entered into or delivered by SPSS in
connection with this Agreement;  (ii) any breach of any covenant,  obligation or
agreement of SPSS contained in this  Agreement or in any other closing  document
and (iii) any fraudulent representation or intentional  misrepresentation on the
part of SPSS,  unless the claim or cause of action with respect  thereto  arises
out of or is related  to  actions  or  omissions  of  Quantime  or the  Quantime
Insiders prior to the Closing Date. Any  indemnification  made by SPSS hereunder
shall be in SPSS Common Stock,  valued at the closing price of SPSS Common Stock
on September 30, 1997.

         14.4  Indemnification  Procedure.  (a) An indemnified  party under this
Article XIV shall give prompt written notice to the indemnifying party (when and
to the extent that the indemnified  party has actual  knowledge  thereof) of any
condition,  event or  occurrence  or the  commencement  of any  action,  suit or
proceeding  for  which  indemnification  may  be  sought,  and  through  counsel
reasonably  satisfactory  to the  indemnified  party,  shall  assume the defense
thereof or other  indemnification  obligation  with respect  thereto;  provided,
however, that any indemnified party shall be entitled to participate in any such
action,  suit  or  proceeding  with  counsel  of its own  choice  but at its own
expense; and provided, further, that

                                     - 43 -

<PAGE>



any indemnified party shall be entitled to participate in any such action,  suit
or proceeding with counsel of its own choice at the expense of the  indemnifying
party,  if,  under  applicable  canons of ethics,  joint  representation  of the
indemnifying party and the indemnified party presents a conflict of interest.

         In any event,  if the  indemnifying  party  fails to assume the defense
within a reasonable time, the indemnified party may assume such defense or other
indemnification obligation and the reasonable fees and expenses of its attorneys
will be covered by the  indemnity  provided for  hereunder.  No action,  suit or
proceeding  for which  indemnification  may be sought  shall be  compromised  or
settled  in any  manner  which  might  adversely  affect  the  interests  of the
indemnifying  party without the prior written consent of the indemnifying  party
(which  shall  not  be  unreasonably  withheld);  provided,  however,  that  the
indemnified  party  may  settle  any  claim  or  cause  of  action  without  the
indemnifying  party's consent, but in such case the indemnifying party shall not
be required to reimburse the indemnified  party for its Losses except and to the
extent that the results of  arbitration,  conducted in  accordance  with Section
14.5  hereof,   determines  that  the  indemnifying  party  must  indemnify  the
indemnified party therefor. Notwithstanding anything in this Section 14.4 to the
contrary, the indemnifying party shall not, without the prior written consent of
the indemnified  party, (i) settle or compromise any action,  suit or proceeding
or  consent  to  the  entry  of  any  judgment  which  does  not  include  as an
unconditional  term  thereof the  delivery by the  claimant or  plaintiff to the
indemnified  party of a written  release  from all  liability in respect of such
action,  suit or  proceeding or (ii) settle or  compromise  any action,  suit or
proceeding  in  any  manner  that  may  materially  and  adversely   affect  the
indemnified  party  other  than as a result  of  money  damages  or other  money
payments.  The indemnifying party shall pay all expenses,  including  attorneys'
fees, that may be incurred by any  indemnified  party in enforcing the indemnity
provided for hereunder.

         (b) In the case of any proposed or actual assessment of tax liabilities
for which SPSS is  entitled to  indemnification  from the  Quantime  Insiders as
provided in Section  14.2(b),  SPSS shall give  written  notice to the  Quantime
Insiders as provided in subparagraph  (a) hereof and shall contest such proposed
or actual  assessment  through the  administrative  review or appeal  procedures
available under the relevant tax laws and regulations,  provided,  however, that
SPSS shall not be required to contest such proposed or actual  assessment unless
the Quantime  Insiders shall first provide an opinion of counsel or of a firm of
independent  outside auditors,  reasonably  acceptable to SPSS, stating that the
Quantime  Insiders have a reasonable  basis for their position.  SPSS shall keep
the Quantime  Insiders fully informed as to the progress of such contest.  If at
any point prior to the termination of the  administrative  review  process,  the
Quantime  Insiders  notify  SPSS in  writing  that they are  willing to accept a
settlement  proposed by the IRS or the Inland Revenue,  as the case may be, with
respect to such  proposed or actual  assessment  of tax  liabilities,  SPSS will
settle the  proposed or actual tax  assessment,  and SPSS shall  immediately  be
entitled to indemnification from the Quantime Insiders. If the Quantime Insiders
never elect to request SPSS to settle and such administrative  review process is
unsuccessful  at eliminating the proposed tax, SPSS shall be entitled to pay the
tax (and any penalties and interest) and be entitled to

                                     - 44 -

<PAGE>



indemnification  from the Quantime Insiders;  provided,  that if within ten (10)
days of  receipt  from SPSS of notice  that it is paying the tax,  the  Quantime
Insiders  notify SPSS of their  desire to contest the  proposed or assessed  tax
deficiency  in the  courts,  the  Quantime  Insiders  shall be entitled to do so
provided  that (a) if the proposed or actual tax  deficiency is contested in tax
court,  the  Quantime  Insiders  shall pay from their own  sources any amount of
taxes,  penalties  and interest  determined to be due and (b) if the proposed or
actual tax deficiency is contested by suit for refund in any other court,  funds
shall be  provided  to SPSS and SPSS shall pay the tax and if the outcome of the
contest  determines  that the tax paid should be refunded,  such refund shall be
returned  to  the   Quantime   Insiders.   Any  contest   (whether   during  the
administrative  review process or otherwise) shall be conducted at the sole cost
and expense of the Quantime Insiders.

         14.5  Arbitration.  Any dispute as to any claims  under this  Agreement
shall  be  settled  by  arbitration  in  the   Wilmington,   Delaware  by  three
arbitrators,  one of whom shall be appointed by the  Quantime  Insiders,  one by
SPSS and the third of whom shall be appointed by the first two  arbitrators.  If
either  party  fails to  appoint  an  arbitrator  within 30 days of a request in
writing by the other party to do so or if the first two arbitrators cannot agree
on the appointment of a third  arbitrator  within 20 days of their  designation,
then such arbitrator  shall be appointed by the Chief Judge of the United States
District  Court for the  District of  Delaware.  Except as to the  selection  of
arbitrators  which  shall  be as set  forth  above,  the  arbitration  shall  be
conducted   promptly  and   expeditiously  in  accordance  with  the  commercial
arbitration  rules of the American  Arbitration  Association so as to enable the
arbitrators  to  render  an  award  within  90 days of the  commencement  of the
arbitration proceedings. Judgment upon the award rendered by the arbitrators may
be  entered  in  any  court  having  jurisdiction  thereof.  The  costs  of  the
arbitration and the arbitrator  shall be allocated as provided in the results of
the arbitration.

         14.6 Treatment as Adjustment of Purchase Price.  Any indemnity  payment
received by a party  hereunder shall be treated as an adjustment of the purchase
price.  However, in the event that the Internal Revenue Service,  Inland Revenue
or any other taxing authority determines that such indemnity payment constitutes
taxable gain or income to the indemnified  party, the  indemnifying  party shall
increase the amount otherwise required to be paid so that the indemnified party,
receives,  on an  after-tax  basis,  an amount equal to the amount it would have
received had the indemnity not resulted in taxable gain or income.

         14.7 Limited  Remedies.  SPSS shall have no cause of action against the
Shareholders  for matters  arising out of the sale to SPSS of Shares of Quantime
other than the contractual  remedies contained herein or in ancillary  documents
executed and delivered in connection with the transactions  contemplated hereby,
and claims  sounding  in fraud,  misrepresentation  under  United  States  laws,
equitable  estoppel and promissory  estoppel.  SPSS acknowledges that it has not
been  induced  to enter into this  Agreement  by any  representation,  warranty,
promise or  assurance  by the  Quantime  Insiders or any other person other than
those  specifically  contained  in  this  Agreement  or in  ancillary  documents
executed and delivered in connection with the transactions contemplated hereby.

                                     - 45 -

<PAGE>




                                   ARTICLE XV

                        TERMINATION, AMENDMENT AND WAIVER

         15.1 Termination. This Agreement may be terminated at any time prior to
the Closing Date:

         (a)      by mutual consent of the parties hereto;

         (b) by the  Quantime  Insiders  or SPSS  if a  material  breach  of any
provision  of this  Agreement  has been  committed  by the other  party and such
breach is not waived by the nonbreaching party;

         (c) by SPSS, if the conditions set forth in Section XI hereof shall not
have  been  complied  with  or  performed  in  any  material  respect  and  such
noncompliance or  nonperformance  shall not have been cured or eliminated (or by
its nature cannot be cured or eliminated) by the Quantime  Insiders on or before
October 31, 1997; or

         (d) by the Quantime  Insiders,  if the  conditions set forth in Section
XII  hereof  shall not have been  complied  with or  performed  in any  material
respect and such  noncompliance or  nonperformance  shall not have been cured or
eliminated  (or by its nature cannot be cured or  eliminated)  by SPSS or before
October 31, 1997; or

         (e) by either SPSS or the Quantime  Insiders if the  Acquisition  shall
not have been  consummated  on or before  October 31, 1997 or such later date as
the parties hereto agree in writing.

         15.2  Effect  of  Termination.  In the  event  of  termination  of this
Agreement as provided  above,  this Agreement  shall  hereafter  become void and
there shall be no  liability or further  obligation  on the part of the Quantime
Shareholders  or SPSS or its  officers  or  directors,  except  as set  forth in
Section 10.1 and Section  16.3 and except that  nothing  herein will relieve any
party from liability for breach of this Agreement.


                                   ARTICLE XVI

                                  MISCELLANEOUS


         16.1  Amendment  and  Modification.  Subject to  applicable  law,  this
Agreement may be amended,  modified and supplemented by written agreement of the
parties.  In addition,  at any time prior to Closing Date, the Quantime Insiders
may, but only with the prior  approval of SPSS,  amend the  schedules  hereto to
reflect any matter that occurs or is discovered by any of them subsequent to the
date of this Agreement.

                                     - 46 -

<PAGE>




         16.2 Waiver of Compliance.  Any failure of the Quantime Shareholders on
the one hand, or SPSS, on the other, to comply with any obligation herein may be
expressly waived hereunder, but such waiver shall not operate as a waiver of, or
estoppel with respect to, any subsequent or other failure. Any waiver must be in
writing and duly executed by the appropriate parties.

         16.3 Expenses.  Whether or not the  transactions  contemplated  by this
Agreement  shall be  consummated,  the  parties  hereto  agree that all fees and
expenses  incurred by the Quantime  Shareholders,  on the one hand, and SPSS, on
the other,  in connection with this Agreement,  and the  transactions  and other
actions contemplated thereby or taken in connection therewith, shall be borne by
the Quantime  Shareholders  (and Quantime  shall have no liability for such fees
and expenses), and by SPSS,  respectively,  including,  without limitation,  all
fees of counsel and accountants;  provided, however, that SPSS agrees to pay the
fees  incurred by KPMG Peat  Marwick LLP for any  required  audit of  Quantime's
financial  statements,  or supplementary  procedures  required for SEC reporting
purposes, as well as the fees charged by Ernst & Young relating to its review of
Quantime's liability for New York and other state sales tax. Payment of the fees
and expenses incurred by the Quantime  Shareholders not to exceed $163,870 shall
be made by SPSS and the Total Shares shall be reduced in accordance with Section
1.3 hereof.

         16.4 Notices. All notices,  requests,  demands and other communications
required or permitted  hereunder shall be in writing and shall be deemed to have
been duly given when  delivered  by hand or by facsimile  transmission  (receipt
confirmed), one day after being sent by recognized overnight courier or delivery
service,  freight  prepaid,  or five  days  after  being  mailed,  certified  or
registered mail, postage prepaid, return receipt requested:

         (a)      If to the Quantime Insiders to:

                           Edward Ross
                           c/o Thompson Hine & Flory LLP
                           312 Walnut, 14th Floor
                           Cincinnati, Ohio  45202-4029
                           Attention:  Michael Oestreicher, Esq.
                           Facsimile No.:  (513) 241-4771


                           Richard Kottler
                           Grangewood, Seven Hills Close
                           Walton-on-Thames
                           Surrey KT12 4DE
                           ENGLAND

                                     - 47 -

<PAGE>



                           Norman Grunbaum
                           7 Northdene Gardens
                           London  NI5 6LX
                           ENGLAND


                           Louis Davidson
                           7 Roughlands
                           Pyrford
                           Surrey GU22 8PT
                           ENGLAND

                           with a copy to:

                           Thompson Hine & Flory LLP
                           312 Walnut, 14th Floor
                           Cincinnati, Ohio 45202-4029
                           Attention: Michael Oestreicher, Esq.
                           Facsimile No.:  (513) 241-4771

If to the Quantime  Shareholders,  to the  addresses  set forth on the signature
pages  hereof,  or to such other person or address as the Quantime  Shareholders
shall  furnish to SPSS in writing by notice given in the manner set forth in (a)
above.

         (b)      If to SPSS, to:

                           SPSS Inc.
                           444 North Michigan Avenue
                           Chicago, Illinois 60611
                           Attention: Mr. Edward Hamburg
                           Facsimile No.:  (312) 329-3558

                           with a copy to:

                           Ross & Hardies
                           150 North Michigan Avenue, Suite 2500
                           Chicago, Illinois 60601
                           Attention: T. Stephen Dyer, Esq.
                           Facsimile No.:  (312) 750-8600

or to such  other  person or  address  as SPSS  shall  furnish  to the  Quantime
Insiders in writing by notice given in the manner set forth above.


                                     - 48 -

<PAGE>



         16.5 Assignment.  This Agreement and all of the provisions hereof shall
be  binding  upon and  inure to the  benefit  of the  parties  hereto  and their
respective  successors and permitted assigns, but neither this Agreement nor any
of the rights,  interests or obligations  hereunder  shall be assigned by any of
the parties  hereto  without  the prior  written  consent of the other  parties,
except by  operation  of law and  except  that SPSS may  assign  its  rights and
obligations  under this  Agreement to any other entity  wholly owned by SPSS. If
such assignment  shall be made by SPSS, the assignee shall be entitled to all of
the rights and shall assume all of the obligations of SPSS hereunder,  provided,
that SPSS shall remain liable for and guarantee the performance of such entity's
obligations  under this  Agreement and shall issue to the Quantime  Shareholders
the SPSS Common Stock as provided herein.

         16.6 Publicity.  Neither the Quantime  Shareholders nor SPSS shall make
or issue, or cause to be made or issued,  any announcement or written  statement
concerning  this  Agreement  or  the   transactions   contemplated   hereby  for
dissemination  to the general  public,  without the prior written consent of the
other parties,  nor shall the Quantime  Shareholders cause or permit Quantime to
do so. This provision shall not apply,  however,  to any announcement or written
statement  required to be made by law, the  regulations  of any federal or state
governmental  agency or any stock  exchange,  except that the party  required to
make such announcement shall, whenever practicable, consult with the other party
concerning the timing and content of such announcement  before such announcement
is made.

         16.7  Headings.  The  Article and Section  headings  contained  in this
Agreement are inserted for convenience  only and shall not affect in any way the
meaning or interpretation of this Agreement.

         16.8  Severability.  If  any  provision  of  this  Agreement  shall  be
determined  to be contrary  to law and  unenforceable  by any court of law,  the
remaining provisions shall be severable and enforceable in accordance with their
terms.

         16.9 Governing  Law. This Agreement  shall be governed by and construed
in  accordance  with the laws of the State of  Delaware,  without  regard to its
conflicts of law doctrine. The parties hereto expressly submit themselves to the
non-exclusive  jurisdictions of the State and Federal Courts of Illinois for the
resolution  of any disputes  which may arise under or with respect to compliance
with this Agreement.

         16.10  Counterparts.  This Agreement may be executed  simultaneously in
two or more counterparts,  each of which shall be deemed an original, but all of
which together shall constitute one and the same instrument.

         16.11 Third  Parties.  Nothing herein shall be construed to confer upon
or give to any party  other  than the  parties  hereto and their  successors  or
permitted assigns, any rights or remedies under or by reason of this Agreement.


                                     - 49 -

<PAGE>



         16.12 References to Laws. References to particular statutes within this
Agreement,  to the extent such references  relate to laws other than the laws of
the United States or any particular  State thereof,  are intended to refer,  and
shall be construed as referring, to laws of the United Kingdom.

         16.13 Entire  Agreement.  This  Agreement,  including  the Exhibits and
Schedules  hereto,  sets forth the entire  agreement  and  understanding  of the
parties hereto in respect of the subject matter contained herein, and supersedes
all prior agreements, covenants,  representations or warranties, whether oral or
written, by any party hereto.

         16.14  Trustees.  To the  extent  signatories  hereto are  trustees  or
attorneys-in-fact,  the  parties  acknowledge  and agree that such  persons  are
executing and  delivering  this  Agreement  and  consummating  the  transactions
contemplated   hereby   solely  in  their   capacity   as  such   trustees   and
attorneys-in-fact  and not  individually,  and further,  that said  trustees and
attorneys-in-fact shall have no personal liability in connection therewith. With
respect  to  Shareholders  which are  trusts or  foundations,  claims  under the
Agreement  are  limited to trust  assets  and the  Shares  held under the Escrow
Agreement and no claims will be made against the trustees, attorneys-in-fact and
officers  acting in their capacity as such. The provisions of this Section 16.14
shall  apply  with  equal  force to and shall be deemed  to be  incorporated  by
reference in all ancillary  documents  signed by signatories who are trustees or
attorneys-in-fact and who execute any ancillary documents in connection with the
transactions contemplated by this Agreement.

         16.15  Authority of Edward Sherman Ross Trust. As to the Edward Sherman
Ross Trust, SPSS is relying on a letter,  dated of even date herewith,  that the
trustees have full power and authority to enter into this Agreement and to carry
out the transactions  contemplated  thereby,  and as to Joya, SPSS is relying on
certified  resolutions  of the  Secretary  of Joya with respect to the power and
authority of Joya to enter into this Agreement and to carry out the transactions
contemplated thereby.

         16.16  Investment in the Common Stock.  As of the Closing Date, each of
the  Quantime  Shareholders  (as to himself  or herself  and not as to any other
Quantime  Shareholder):  (i) has received and carefully  reviewed  copies of the
SPSS  Reports  (hereinafter  defined);  (ii) has  evaluated,  and/or  his or her
business,  tax and/or  other legal  advisors  have  evaluated  and advised  such
Quantime Shareholder as to the merits,  disadvantages and risks of an investment
in  SPSS  Common  Stock;   (iii)  acknowledges  that,  in  reliance  upon  these
representations,  SPSS is not  registering the issuance of the SPSS Common Stock
under the Act prior to the Closing Date; (iv)  acknowledges that the SPSS Common
Stock may not be resold  except in a transaction  which is registered  under the
Act or which is exempt from such  registration  requirements  and that SPSS will
cause a legend setting forth such  restrictions to be placed on each certificate
representing  the SPSS Common Stock and will make  appropriate  notations in its
records  and the  records  of its  transfer  agent  with  respect  thereto;  (v)
recognizes the  speculative  nature of the SPSS Common Stock and is able to bear
the economic risk of the  investment he or she is making in SPSS Common Stock by
reason of

                                     - 50 -

<PAGE>



the  transactions  contemplated  by this  Agreement;  (vi) is acquiring the SPSS
Common Stock for his or her own account,  as principal,  for investment purposes
only and without a view to the resale,  transfer or other  distribution  thereof
except in a sale  registered  under the Act or in a transaction  exempt from the
registration  requirements of the Act; (vii)  acknowledges  that the Acquisition
Stock of SPSS being acquired pursuant to the terms of this Agreement  represents
an investment in the business of SPSS, and that SPSS has made no representations
or warranties  with respect to the future  business  performance  of SPSS or the
price of its Common Stock;  and (viii) has been afforded an  opportunity  to ask
questions and receive answers  concerning SPSS and its operations,  business and
financial condition,  the SPSS Common Stock and the terms and conditions of this
Agreement and has received any additional  information  concerning  SPSS and its
operations,  business and  financial  condition,  the SPSS Common Stock and this
Agreement that such Quantime Shareholder has reasonably requested.


                                     - 51 -

<PAGE>



         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed, all as of the day and year first written above.


SPSS:

SPSS INC., a Delaware corporation



By:_______________________________
         Name:
         Title:


THE QUANTIME INSIDERS:



__________________________________           _________________________________
EDWARD ROSS                                  RICHARD KOTTLER



__________________________________           _________________________________
NORMAN GRUNBAUM                              LOUIS DAVIDSON





<PAGE>




THE QUANTIME SHAREHOLDERS:


THE EDWARD SHERMAN ROSS TRUST                JOYA CHARITABLE FOUNDATION


By:______________________________            By:______________________________
   Name:                                        Name:
   Title:                                       Title:


Address:_________________________            Address:_________________________

        -------------------------                    -------------------------



INTERNATIONAL SERVICES S.A.


By:______________________________            _________________________________
    Name:                                    VALERIE GRIFFIN
    Title:                                   Address:_________________________

                                                     -------------------------

Address:_________________________

        -------------------------



_________________________________            _________________________________
JONI ORGEL                                   EARL WARDALLY
                                             Address:_________________________
Address:_________________________                    _________________________

        -------------------------





                                     - 53 -

<PAGE>





_________________________________            _________________________________
SHARON JORDAN                                JOHN TAGGART

Address:_________________________            Address:_________________________

        -------------------------                    -------------------------



_________________________________            _________________________________
ANDI PERETZ                                  GWEN SMITH

Address:_________________________            Address:_________________________

        -------------------------                    -------------------------



_________________________________            _________________________________
WES FROST                                    J. MARINELLI

Address:_________________________            Address:_________________________

        -------------------------                    -------------------------



_________________________________
PETER DA COSTA

Address:_________________________

        -------------------------





                                     - 54 -

<PAGE>



                                TABLE OF CONTENTS


ARTICLE I         TERMS OF PURCHASE AND SALE..................................2
         1.1      Purchase and Sale of the Shares.............................2
         1.2      Closing.....................................................2
         1.3      Payment of Purchase Price...................................2
         1.4      Tax and Accounting..........................................3

ARTICLE II        SHAREHOLDERS' REPRESENTATIVE................................3
         2.1      Designation of Shareholders' Representative.................3
         2.2      Authorization of Shareholders' Representative...............3
         2.3      Replacement of Shareholders' Representative.................3
         2.4      Decisions of Shareholders' Representative...................3
         2.5      Agreements Regarding Shareholders' Representative...........3
         2.6      Fees of Shareholders' Representative........................4
         2.7      No Personal Liability.......................................4

ARTICLE III       ESCROW......................................................5
         3.1      Escrow......................................................5
         3.2      Escrowed Shares.............................................5

ARTICLE IV        SECURITIES MATTERS..........................................5
         4.1      Registration of SPSS Common Stock...........................5
         4.2      Sales of SPSS Common Stock by the Shareholders..............7
         4.3      Registration Expenses.......................................7
         4.4      Restricted Stock............................................7
         4.5      Indemnification; Contribution...............................8
         4.6      Additional Obligations of SPSS.............................10
         4.7      Reports Under the Exchange Act.............................11

ARTICLE V         REPRESENTATIONS AND WARRANTIES OF THE QUANTIME
                  INSIDERS...................................................11
         5.1      Organization and Qualification.............................11
         5.2      Authority..................................................12
         5.3      Capitalization.............................................13
         5.4      [Intentionally omitted.]...................................14
         5.5      Consents and Approvals.....................................14
         5.6      Absence of Conflicts.......................................14
         5.7      Financial Statements:  Accounts Receivable.................14
         5.8      Absence of Undisclosed Liabilities.........................15
         5.9      Absence of Certain Changes or Events.......................15
         5.10     [Intentionally omitted.]...................................16
         5.11     Real and Personal Property; Inventories....................16

                                      - i -

<PAGE>



         5.12     Patents, Trademarks, Etc...................................17
         5.13     Rights of Employees with Respect to Certain Intellectual
                    Property.................................................18
         5.14     Contracts and Commitments..................................18
         5.15     Source Code................................................19
         5.16     Licenses and Royalties.....................................19
         5.17     Technical Documentation....................................20
         5.18     Third-Party Components in Software Programs................20
         5.19     Third-Party Interests or Marketing Rights in Software
                    Programs.................................................20
         5.20     Software Security Warranties...............................20
         5.21     Non-Infringement...........................................21
         5.22     Government Contracts.......................................21
         5.23     Product Warranties and Liabilities.........................21
         5.24     Insurance..................................................22
         5.25     Litigation and Administrative Proceedings..................22
         5.26     Tax Matters................................................22
         5.27     Compliance with Laws.......................................24
         5.28     Environmental and Safety Matters...........................24
         5.29     Employee Benefits..........................................25
         5.30     Licenses and Permits.......................................27
         5.31     Relations With Suppliers and Customers.....................27
         5.32     Interests in Competitors, Suppliers and Customers..........27
         5.33     Employment Matters.........................................28
         5.34     Discrimination:  Occupational Safety; Labor................28
         5.35     Related Transactions.......................................29
         5.36     Brokers and Finders........................................29
         5.37     Questionable Payments......................................29
         5.38     Books and Records..........................................29
         5.39     Bank Accounts; Safe Deposit Boxes..........................29
         5.40     Effect of Certificates.....................................29
         5.41     Accounting Matters.........................................30
         5.42     Material Misstatements or Omissions........................30
         5.43     Qualification of Representations...........................30
         5.44     Knowledge..................................................30

ARTICLE VI        REPRESENTATIONS AND WARRANTIES OF SPSS.....................30
         6.1      Organization and Qualification.............................30
         6.2      Authority..................................................31
         6.3      Consents and Approvals.....................................31
         6.4      Absence of Conflicts.......................................31
         6.5      Capitalization.............................................31
         6.6      Reports and Financial Statement............................31
         6.7      Litigation and Administrative Proceedings..................32
         6.8      Brokers and Finders........................................32
         6.9      Acquisition Stock..........................................32

                                     - ii -

<PAGE>



         6.10     Pooling of Interests Accounting.............................32
         6.11     Dividends and Distributions.................................32
         6.12     NASDAQ Authorization........................................32
         6.13     Material Misstatements or Omissions.........................32
         6.14     Knowledge...................................................33

ARTICLE VII       INTENTIONALLY OMITTED.......................................33

ARTICLE VIII      COVENANTS OF THE QUANTIME SHAREHOLDERS......................33
         8.1      Consents and Approvals......................................33
         8.2      Closing Returns.............................................33
         8.3      Access to Information.......................................34
         8.4      Cost of Shares..............................................34
         8.5      Further Assurances..........................................34
         8.6      Documents...................................................34
         8.7      Power of Attorney...........................................34

ARTICLE IX        COVENANTS OF SPSS...........................................34
         9.1      Retention of Records........................................34
         9.2      Further Assurances..........................................35
         9.3      Release of Guarantee........................................35
         9.4      Sales Tax...................................................35
         9.5      Cooperation-Audits..........................................35

ARTICLE X         MUTUAL COVENANTS............................................35
         10.2     Consistent Tax Reporting....................................36
         10.3     Cooperation.................................................36

ARTICLE XI        CONDITIONS TO OBLIGATIONS OF THE QUANTIME
                  SHAREHOLDERS................................................37
         11.1     Representations and Warranties..............................37
         11.2     Performance.................................................37
         11.3     Filings; Consents: Waiting Periods..........................37
         11.4     No Injunction...............................................37
         11.5     Pooling.....................................................37
         11.6     Legal Opinion...............................................37

ARTICLE XII       CONDITIONS TO OBLIGATIONS OF SPSS...........................38
         12.1     Representations and Warranties..............................38
         12.2     Performance.................................................38
         12.3     Filings:  Consents; Waiting Periods.........................38
         12.4     No Litigation...............................................38
         12.5     Legal Opinion...............................................38
         12.6     Due Diligence Investigation.................................38

                                     - iii -

<PAGE>



         12.7     Pooling.....................................................39
         12.8     Affiliates and Certain Stockholders.........................39
         12.9     Delivery....................................................40
         12.10    Median Closing Price........................................40

ARTICLE XIII      CLOSING DELIVERIES..........................................40
         13.1     Delivery of Share Certificates and Stock Transfers..........40
         13.2     Delivery of Deed of Covenant and other Closing Documents....41
         13.3     Legal Opinions..............................................41
         13.4     Consents....................................................41
         13.5     Closing Certificates........................................41
         13.6     Charter: Good Standing Certificates.........................41
         13.7     Resignations of Quantime's Officers and Directors...........41
         13.8     Covenant Not To Compete.....................................42
         13.9     Company Records.............................................42
         13.10    Unconditional Consent of Directors..........................42
         13.11    Resolutions of Certain Quantime Shareholders................42
         13.12    Further Assurances..........................................42

ARTICLE XIV       SURVIVAL AND INDEMNIFICATION................................42
         14.1     Survival of Representations and Warranties: Covenants.......42
         14.2     Indemnification.............................................43
         14.3     Indemnification by SPSS.....................................45
         14.4     Indemnification Procedure...................................45
         14.5     Arbitration.................................................47
         14.6     Treatment as Adjustment of Purchase Price...................47
         14.7     Limited Remedies............................................47

ARTICLE XV        TERMINATION, AMENDMENT AND WAIVER...........................48
         15.1     Termination.................................................48
         15.2     Effect of Termination.......................................48

ARTICLE XVI       MISCELLANEOUS...............................................48
         16.1     Amendment and Modification..................................48
         16.2     Waiver of Compliance........................................49
         16.3     Expenses....................................................49
         16.4     Notices.....................................................49
         16.5     Assignment..................................................50
         16.6     Publicity...................................................51
         16.7     Headings....................................................51
         16.8     Severability................................................51
         16.9     Governing Law...............................................51
         16.10    Counterparts................................................51
         16.11    Third Parties...............................................51

                                     - iv -

<PAGE>


         16.12    References to Laws..........................................51
         16.13    Entire Agreement............................................51
         16.14    Trustees....................................................52
         16.15    Authority of Certain Quantime Shareholders..................52


                                      - v -




                                     BY-LAWS

                                       OF

                                    SPSS INC.

             (Incorporated under the Laws of the State of Delaware)

                                    ARTICLE I

                               OFFICES AND RECORDS

                SECTION (1)  Registered  Office.  The  registered  office of the
Corporation shall be established and maintained at the office of The Corporation
Trust Company,  at 1209 Orange Street in the City of  Wilmington,  County of New
Castle,  State of  Delaware,  and The  Corporation  Trust  Company  shall be the
registered agent of the Corporation at such address.

                SECTION (2) Other Offices.  The  Corporation may have such other
offices,  either  within  or  without  the  State of  Delaware,  as the Board of
Directors may designate or as the business of the  Corporation  may from time to
time require.

                SECTION  (3) Books and  Records.  The books and  records  of the
Corporation may be kept outside the State of Delaware at such place or places as
may from time to time be designated by the Board of Directors.


                                   ARTICLE II

                                  STOCKHOLDERS

                SECTION (1) Annual Meeting.  Annual meetings of stockholders for
the election of directors,  and for such other  business as may be stated in the
notice of the meeting, shall be held at such place, either within or without the
State of  Delaware,  and at such  time and date as the  Board of  Directors,  by
resolution,  shall  determine and as set forth in the notice of the meeting.  At
each annual meeting,  the  stockholders  entitled to vote shall elect a Board of
Directors, or class thereof, and they may transact such other corporate business
as shall be stated in the notice of the meeting.

                SECTION   (2)   Special   Meeting.   Special   meetings  of  the
stockholders may be held at such time and place,  within or without the State of
Delaware,  as shall be stated in the  notice of the  meeting,  and may be called
only by the Chairman of the Board or by a vote of a majority of the total number
of directors  which the  Corporation  would have if there were no vacancies (the
"Whole Board").

                SECTION (3) Notice of Meeting.  Written or printed notice,
stating the place, day and hour of the meeting and the


<PAGE>



purpose or purposes  for which the meeting is called,  shall be delivered by the
Corporation not less than ten (10) days nor more than sixty (60) days before the
date of the meeting, either personally or by mail, to each stockholder of record
entitled to vote at such meeting.  If mailed,  such notice shall be deemed to be
delivered when deposited in the United States mail with postage thereon prepaid,
addressed to the  stockholder at his address as it appears on the stock transfer
books of the Corporation.  Such further notice shall be given as may be required
by  law.  Only  such  business  shall  be  conducted  at a  special  meeting  of
stockholders  as shall have been  brought  before the  meeting  pursuant  to the
Corporation's notice of meeting.

                SECTION (4) Quorum and Adjournment. Except as otherwise provided
by law or by the Certificate of Incorporation,  the holders of a majority of the
outstanding  shares  of  capital  stock  of the  Corporation  entitled  to  vote
generally in the election of directors  (the  "Voting  Stock"),  represented  in
person or by proxy, shall constitute a quorum at a meeting of stockholders.  The
Chairman of the meeting or a majority of the shares so  represented  may adjourn
the meeting from time to time,  whether or not there is such a quorum. No notice
of the time and place of adjourned  meetings need be given except as required by
law.  The  stockholders  present at a duly  called  meeting at which a quorum is
present may continue to transact business until adjournment, notwithstanding the
withdrawal of enough stockholders to leave less than a quorum.

                SECTION (5) Voting.  Each stockholder  shall be entitled to vote
in  accordance  with  the  terms  of the  Certificate  of  Incorporation  and in
accordance with the provisions of these By-Laws,  in person or by proxy,  but no
proxy shall be voted after three years from its date, unless such proxy provides
for a longer  period.  A duly executed  proxy shall be  irrevocable if it states
that it is  irrevocable  and if,  and only as long  as,  it is  coupled  with an
interest legally  sufficient to support an irrevocable  power. A stockholder may
revoke any proxy which is not irrevocable by attending the meeting and voting in
person or by filing with the person  recording the proceedings of the meeting an
instrument in writing  revoking the proxy or another duly executed proxy bearing
a later date.

                A  complete  list of the  stockholders  entitled  to vote at the
ensuing election,  arranged in alphabetical order, with the address of each, and
the  number  of shares  held by each,  shall be open to the  examination  of any
stockholder,  for any purpose germane to the meeting,  during ordinary  business
hours for a period of at least ten (10) days prior to the  meeting,  either at a
place  within the city where the  meeting is to be held,  which  place  shall be
specified in the notice of the meeting,  or, if not so  specified,  at the place
where the meeting is to be held. The list shall also be produced and kept at the
time and place of the

                                      - 2 -

<PAGE>



meeting during the whole time thereof, and may be inspected by any stockholder
who is present.

                SECTION (6) Notice of Stockholder Business and
                            Nominations.

                1. Annual Meetings of  Stockholders.  Nominations of persons for
election  to the Board of  Directors  of the  Corporation  and the  proposal  of
business to be considered by the  stockholders  may be made at an annual meeting
of stockholders (a) pursuant to the Corporation's  notice of meeting,  (b) by or
at the  direction  of the Board of Directors  or (c) by any  stockholder  of the
Corporation  who was a  stockholder  of  record  at the time of giving of notice
provided  for in this  By-Law,  who is  entitled  to vote at the meeting and who
complies with the notice procedures set forth in this By-Law.

                         a.  For nominations or other business to be
properly  brought before an annual  meeting by a stockholder  pursuant to clause
(c) of  paragraph  (1) above,  the  stockholder  must have given  timely  notice
thereof in writing to the Secretary of the  Corporation  and such other business
must  otherwise  be a proper  matter for  stockholder  action.  To be timely,  a
stockholder's  notice  shall be  delivered  to the  Secretary  at the  principal
executive offices of the Corporation not later than the close of business on the
60th day nor  earlier  than the close of  business  on the 90th day prior to the
first  anniversary of the preceding  year's annual meeting;  provided,  however,
that in the  event  that the date of the  annual  meeting  is more  than 30 days
before  or  more  than  60 days  after  such  anniversary  date,  notice  by the
stockholder  to be timely must be so  delivered  not  earlier  than the close of
business  on the 90th day prior to such  annual  meeting  and not later than the
close of business  on the later of the 60th day prior to such annual  meeting or
the 10th day following the day on which public  announcement of the date of such
meeting  is  first  made  by the  Corporation.  In no  event  shall  the  public
announcement  of an adjournment of an annual meeting  commence a new time period
for the giving of a stockholder's  notice as described above. Such stockholder's
notice  shall set forth (a) as to each person whom the  stockholder  proposes to
nominate for election or  reelection as a director all  information  relating to
such person that is required to be  disclosed  in  solicitations  of proxies for
election of directors in an election contest, or is otherwise required,  in each
case pursuant to Regulation  14A under the  Securities  Exchange Act of 1934, as
amended (the "Exchange Act") and Rule 14a-11 thereunder (including such person's
written  consent  to being  named in the proxy  statement  as a  nominee  and to
serving  as a  director  if  elected);  (b) as to any  other  business  that the
stockholder  proposes to bring before the meeting,  a brief  description  of the
business  desired to be brought  before the meeting,  the reasons for conducting
such business at the meeting and any material

                                      - 3 -

<PAGE>



interest in such business of such stockholder and the beneficial  owner, if any,
on whose behalf the proposal is made; and (c) as to the  stockholder  giving the
notice and the  beneficial  owner,  if any, on whose  behalf the  nomination  or
proposal is made (i) the name and address of such stockholder, as they appear on
the  Corporation's  books,  and of such beneficial  owner and (ii) the class and
number of shares of the Corporation  which are owned  beneficially and of record
by such stockholder and such beneficial owner.

                         b.  Notwithstanding anything in these By-Laws to
the  contrary,  in the event that the number of  directors  to be elected to the
Board of  Directors  of the  Corporation  is  increased  and  there is no public
announcement  by the  Corporation  naming all of the  nominees  for  director or
specifying  the size of the increased  Board of Directors at least 70 days prior
to the first anniversary of the preceding year's annual meeting, a stockholder's
notice  required by this By-Law shall also be considered  timely,  but only with
respect to nominees for any new positions created by such increase,  if it shall
be  delivered  to  the  Secretary  at the  principal  executive  offices  of the
Corporation  not later than the close of business on the 10th day  following the
day on which such public announcement is first made by the Corporation.

                2. Special Meetings of Stockholders. Only such business shall be
conducted at a special meeting of stockholders as shall have been brought before
the meeting  pursuant to the  Corporation's  notice of meeting.  Nominations  of
persons for election to the Board of Directors may be made at a special  meeting
of  stockholders  at  which  directors  are  to  be  elected   pursuant  to  the
Corporation's  notice  of  meeting  (a) by or at the  direction  of the Board of
Directors  or (b)  provided  that the Board of  Directors  has  determined  that
directors  shall  be  elected  at  such  meeting,  by  any  stockholder  of  the
Corporation  who is a  stockholder  of  record  at the time of  giving of notice
provided  for in this  By-Law,  who shall be entitled to vote at the meeting and
who complies with the notice  procedures set forth in this By-Law.  In the event
the  Corporation  calls a special  meeting of  stockholders  for the  purpose of
electing one or more directors to the Board of Directors,  any such  stockholder
may  nominate a person or persons  (as the case may be),  for  election  to such
position(s)  as  specified  in  the  Corporation's  notice  of  meeting,  if the
stockholder's  notice  required  by  these  By-Laws  shall be  delivered  to the
Secretary at the principal executive offices of the Corporation not earlier than
the close of  business  on the 90th day prior to such  special  meeting  and not
later  than the  close of  business  on the  later of the 60th day prior to such
special  meeting or the 10th day following the day on which public  announcement
is first made of the date of the special meeting and of the nominees proposed by
the Board of  Directors  to be elected at such  meeting.  In no event  shall the
public announcement of an

                                      - 4 -

<PAGE>



adjournment of a special meeting  commence a new time period for the giving of a
stockholder's notice as described above.

                3.  General.   (1)  Only  such  persons  who  are  nominated  in
accordance  with the  procedures  set forth in this By-Law  shall be eligible to
serve as  directors  and only such  business  shall be conducted at a meeting of
stockholders  as shall have been brought  before the meeting in accordance  with
the  procedures set forth in this By-Law.  Except as otherwise  provided by law,
the Certificate of Incorporation  or these By-Laws,  the Chairman of the meeting
shall have the power and duty to determine  whether a nomination or any business
proposed to be brought before the meeting was made or proposed,  as the case may
be, in  accordance  with the  procedures  set forth in this  By-Law  and, if any
proposed  nomination  or  business is not in  compliance  with this  By-Law,  to
declare that such defective proposal or nomination shall be disregarded.

                         (2)  For purposes of this By-Law, "public announce-
ment" shall mean  disclosure in a press  release  reported by the Dow Jones News
Service,  Associated Press or comparable  national news service or in a document
publicly filed by the  Corporation  with the Securities and Exchange  Commission
pursuant to Section
13, 14 or 15(d) of the Exchange Act.

                         (3)  Notwithstanding the foregoing provisions of
this By-Law, a stockholder shall also comply with all applicable requirements of
the Exchange Act and the rules and  regulations  thereunder  with respect to the
matters  set forth in this  By-Law.  Nothing in this  By-Law  shall be deemed to
affect any rights of  stockholders  to request  inclusion  of  proposals  in the
Corporation's proxy statement pursuant to Rule 14a-8 under the Exchange Act.

                SECTION (7) Procedure for Election of Directors;  Required Vote.
Election of directors at all meetings of the stockholders at which directors are
to be elected  shall be by ballot,  and, a plurality  of the votes cast  thereat
shall elect directors.  Except as otherwise  provided by law, the Certificate of
Incorporation,  or these  By-Laws,  in all  matters  other than the  election or
removal of directors,  the affirmative  vote of a majority of the shares present
in person or  represented  by proxy at the meeting  and  entitled to vote on the
matter shall be the act of the stockholders.

                SECTION (8)  Inspectors  of  Elections;  Opening and Closing the
Polls.  The Board of Directors by resolution may appoint one or more inspectors,
which inspector or inspectors may include  individuals who serve the Corporation
in other capacities,  including,  without  limitation,  as officers,  employees,
agents or  representatives,  to act at the meetings of  stockholders  and make a
written report thereof. One or more persons may be designated

                                      - 5 -

<PAGE>



as  alternate  inspectors  to  replace  any  inspector  who fails to act.  If no
inspector or alternate has been  appointed to act or is able to act at a meeting
of stockholders,  the Chairman of the meeting may appoint one or more inspectors
to act at the meeting.  Each  inspector,  before  discharging his or her duties,
shall take and sign an oath  faithfully to execute the duties of inspector  with
strict  impartiality  and  according  to the  best  of his or her  ability.  The
inspectors shall have the duties prescribed by law.

                The  Chairman  of the  meeting  shall  fix and  announce  at the
meeting  the date and time of the  opening and the closing of the polls for each
matter upon which the stockholders will vote at a meeting.

                SECTION (9) No Stockholder Action by Written Consent. Any action
required or permitted to be taken by the stockholders of the Corporation must be
effected at an annual or special  meeting of stockholders of the Corporation and
may not be effected by any consent in writing by such stockholders.


                                   ARTICLE III

                               BOARD OF DIRECTORS

                SECTION  (1) General  Powers.  The  business  and affairs of the
Corporation  shall be managed under the direction of the Board of Directors.  In
addition to the powers and authorities by these By-Laws expressly conferred upon
them, the Board of Directors may exercise all such powers of the Corporation and
do all such lawful  acts and things as are not by statute or by the  Certificate
of  Incorporation  or by these  By-Laws  required to be exercised or done by the
stockholders.

                SECTION (2)  Number,  Tenure and  Qualifications.  The number of
directors shall be fixed from time to time exclusively  pursuant to a resolution
adopted by a majority  of the Whole  Board,  but shall  consist of not more than
nine  (9) nor  less  than  five  (5)  directors.  Commencing  with  the date the
Corporation's  Certificate  of  Incorporation  is  accepted  for  filing  by the
Delaware  Secretary  of  State's  Office in  connection  with the  Corporation's
initial public  offering,  the directors  shall be divided,  with respect to the
time for which they severally hold office,  into three classes,  as nearly equal
in number as is reasonably possible,  with the term of office of the first class
to expire at the 1994 annual meeting of stockholders,  the term of office of the
second class to expire at the 1995 annual meeting of  stockholders  and the term
of  office  of  the  third  class  to  expire  at the  1996  annual  meeting  of
stockholders, with each director to hold office until his or her successor shall
have been duly elected and qualified.  At each annual  meeting of  stockholders,
commencing with the 1994 annual meeting, directors

                                      - 6 -

<PAGE>



elected to succeed those  directors whose terms then expire shall be elected for
a  term  of  office  to  expire  at  the  third  succeeding  annual  meeting  of
stockholders  after their election,  with each director to hold office until his
or her successor shall have been duly elected and qualified.

                SECTION (3) Regular Meetings.  A regular meeting of the Board of
Directors  shall be held  without  other  notice than as provided by this By-Law
immediately after, and at the same place as, the Annual Meeting of Stockholders.
The Board of Directors  may, by  resolution,  provide the time and place for the
holding of different or additional  regular  meetings  without other notice than
such resolution.

                SECTION (4) Special  Meetings.  Special meetings of the Board of
Directors  shall be called at the  request of the  Chairman  of the  Board,  the
President or a majority of the Board of Directors then in office.  The person or
persons  authorized  to call special  meetings of the Board of Directors may fix
the place and time of the meetings.

                SECTION (5) Notice.  Notice of any special  meeting of directors
shall be given to each  director at his business or residence in writing by hand
delivery,  first-class  or  overnight  mail  or  courier  service,  telegram  or
facsimile  transmission,  or orally by telephone. If mailed by first-class mail,
such notice shall be deemed  adequately  delivered  when deposited in the United
States mails so addressed,  with postage thereon prepaid, at least five (5) days
before such meeting.  If by telegram,  overnight mail or courier  service,  such
notice shall be deemed  adequately  delivered  when the telegram is delivered to
the  telegraph  company  or the notice is  delivered  to the  overnight  mail or
courier service company at least twenty-four (24) hours before such meeting.  If
by facsimile transmission, such notice shall be deemed adequately delivered when
the notice is transmitted at least twelve (12) hours before such meeting.  If by
telephone  or by hand  delivery,  the notice shall be given at least twelve (12)
hours  prior  to the  time  set for the  meeting.  Neither  the  business  to be
transacted  at, nor the purpose of, any regular or special  meeting of the Board
of  Directors  need be  specified  in the  notice of such  meeting,  except  for
amendments to these  By-Laws,  as provided  under Article VIII. A meeting may be
held at any time without notice if all the directors are present or if those not
present waive notice of the meeting in accordance  with Article VI, Section 4 of
these By-Laws.

                SECTION (6) Action by Consent of Board of Directors.  Any action
required or permitted to be taken at any meeting of the Board of Directors or of
any committee thereof may be taken without a meeting if all members of the Board
or committee, as the case may be, consent thereto in writing, and the writing or

                                      - 7 -

<PAGE>



writings are filed with the minutes of proceedings of the Board or committee.

                SECTION (7) Conference Telephone Meetings.  Members of the Board
of Directors,  or any committee  thereof,  may  participate  in a meeting of the
Board of Directors or such committee by means of conference telephone or similar
communications  equipment  by means of which all  persons  participating  in the
meeting  can  hear  each  other,  and  such  participation  in a  meeting  shall
constitute presence in person at such meeting.

                SECTION (8) Quorum.  Subject to Article III,  Section 9, a whole
number  of  directors  equal to at least a  majority  of the Whole  Board  shall
constitute a quorum for the  transaction  of business,  but if at any meeting of
the Board of Directors there shall be less than a quorum present,  a majority of
the directors  present may adjourn the meeting from time to time without further
notice. The act of the majority of the directors present at a meeting at which a
quorum is  present  shall be the act of the Board of  Directors.  The  directors
present at a duly  organized  meeting may  continue to transact  business  until
adjournment,  notwithstanding  the withdrawal of enough  directors to leave less
than a quorum.

                SECTION (9) Vacancies.  Unless the Board of Directors  otherwise
determines,   vacancies   resulting   from   death,   resignation,   retirement,
disqualification,  removal  from  office  or  other  cause,  and  newly  created
directorships resulting from any increase in the authorized number of directors,
may be  filled  only by the  affirmative  vote of a  majority  of the  remaining
directors, though less than a quorum of the Board of Directors, and directors so
chosen  shall  hold  office  for a  term  expiring  at  the  annual  meeting  of
stockholders  at which the term of  office of the class to which  they have been
elected expires and until such director's successor shall have been duly elected
and qualified.  No decrease in the number of authorized  directors  constituting
the Whole Board shall shorten the term of any incumbent director.

                SECTION  (10)  Executive  and  Other  Committees.  The  Board of
Directors may, by resolution adopted by a majority of the Whole Board, designate
an Executive Committee to exercise, subject to applicable provisions of law, all
the powers of the Board in the  management  of the  business  and affairs of the
Corporation when the Board is not in session,  including without  limitation the
power to declare  dividends,  to  authorize  the  issuance of the  Corporation's
capital  stock and to adopt a certificate  of ownership  and merger  pursuant to
Section 253 of the General Corporation Law of the State of Delaware, and may, by
resolution  similarly  adopted,  designate  one or more  other  committees.  The
Executive  Committee and each such other  committee shall consist of two or more
directors of the Corporation. The Board may designate one or more directors as

                                      - 8 -

<PAGE>



alternate  members of any committee,  who may replace any absent or disqualified
member at any  meeting  of the  committee.  Any such  committee,  other than the
Executive Committee (the powers of which are expressly provided for herein), may
to the  extent  permitted  by law  exercise  such  powers  and  shall  have such
responsibilities  as shall be specified in the  designating  resolution.  In the
absence or disqualification  of any member of such committee or committees,  the
member or members  thereof  present at any  meeting  and not  disqualified  from
voting,  whether or not constituting a quorum,  may unanimously  appoint another
member of the  Board to act at the  meeting  in the place of any such  absent or
disqualified   member.   Each  committee  shall  keep  written  minutes  of  its
proceedings and shall report such proceedings to the Board when required.

                A majority of any committee may determine its action and fix the
time and place of its meetings, unless the Board shall otherwise provide. Notice
of such  meetings  shall be given to each member of the  committee in the manner
provided for in Article III,  Section 5 of these  By-Laws.  The Board shall have
power at any time to fill  vacancies  in, to  change  the  membership  of, or to
dissolve any such committee. Nothing herein shall be deemed to prevent the Board
from appointing one or more committees consisting in whole or in part of persons
who  are not  directors  of the  Corporation;  provided,  however,  that no such
committee shall have or may exercise any authority of the Board.

                SECTION  (11)  Removal.  Any  director,  or the entire  Board of
Directors,  may be removed from office at any time,  but only for cause and only
by the  affirmative  vote of the  holders  of at least 80  percent of the voting
power of all of the then-outstanding  shares of Voting Stock, voting together as
a single class.

                SECTION (12) Records.  The Board of Directors  shall cause to be
kept a record  containing the minutes of the  proceedings of the meetings of the
Board and of the  stockholders,  appropriate  stock books and registers and such
books of records and accounts as may be necessary for the proper  conduct of the
business of the Corporation.

                SECTION  (13)  Compensation.  Directors  shall not  receive  any
stated salary for their services as directors or as members of  committees,  but
by resolution of the board a fixed fee and expenses of attendance may be allowed
for attendance at each meeting.  Nothing herein  contained shall be construed to
preclude any director from serving the  Corporation  in any other capacity as an
officer, agent or otherwise, and receiving compensation therefor.


                                         - 9 -


<PAGE>
                                   ARTICLE IV

                                    OFFICERS

                SECTION  (1)  Elected  Officers.  The  elected  officers  of the
Corporation  shall be a  Chairman  of the Board of  Directors,  a  President,  a
Secretary, a Treasurer, and such other officers (including,  without limitation,
a Controller and a Chief Financial  Officer) as the Board of Directors from time
to time may deem  proper.  The  Chairman of the Board shall be chosen from among
the directors.  All officers  elected by the Board of Directors  shall each have
such powers and duties as generally pertain to their respective offices, subject
to the specific  provisions  of this ARTICLE IV. Such  officers  shall also have
such  powers  and duties as from time to time may be  conferred  by the Board of
Directors or by any committee  thereof.  The Board or any committee  thereof may
from time to time elect,  or the Chairman of the Board or President may appoint,
such  other  officers   (including  one  or  more  Vice  Presidents,   Assistant
Secretaries,  Assistant Treasurers,  and Assistant Controllers) and such agents,
as may be  necessary  or  desirable  for  the  conduct  of the  business  of the
Corporation.  Such other  officers  and agents  shall have such duties and shall
hold their  offices for such terms as shall be  provided in these  By-Laws or as
may be prescribed by the Board or such committee or by the Chairman of the Board
or President, as the case may be.

                SECTION (2) Election and Term of Office. The elected officers of
the  Corporation  shall be elected  annually  by the Board of  Directors  at the
regular  meeting of the Board of Directors  held after the annual meeting of the
stockholders.  If the  election of officers  shall not be held at such  meeting,
such election shall be held as soon thereafter as convenient. Each officer shall
hold  office  until his  successor  shall have been duly  elected and shall have
qualified or until his death or until he shall  resign,  but any officer  (other
than the Chairman of the Board or  President)  may be removed from office at any
time by either the  affirmative  vote of a majority of the Whole Board or by the
Chairman of the Board or President.  The Chairman of the Board and the President
may only be removed  from  office by the  affirmative  vote of a majority of the
Whole Board. Such removal shall be without prejudice to the contractual  rights,
if any, of the person so removed.

                SECTION  (3)  Chairman of the Board.  The  Chairman of the Board
shall preside at all meetings of the stockholders and of the Board of Directors.
The Chairman of the Board shall be responsible for the general management of the
affairs of the Corporation and shall perform all duties incidental to his office
which may be required by law and all such other duties as are properly  required
of him by the  Board  of  Directors.  He  shall  make  reports  to the  Board of
Directors and the stockholders, and shall see that all orders and resolutions of
the Board of Directors and of any committee thereof are carried into effect.

                                     - 10 -

<PAGE>



The  Chairman  of the Board may also  serve as  President,  if so elected by the
Board.

                SECTION  (4)  President.  The  President  shall act in a general
executive   capacity  and  shall  assist  the  Chairman  of  the  Board  in  the
administration   and  operation  of  the  Corporation's   business  and  general
supervision of its policies and affairs.  The President shall, in the absence of
or because of the  inability  to act of the  Chairman of the Board,  perform all
duties of the Chairman of the Board and preside at all meetings of  stockholders
and of the Board of Directors.

                SECTION (5) Vice-Presidents. Each Vice President shall have such
powers and shall perform such duties as shall be assigned to him by the Board of
Directors, the Chairman of the Board or the President.

                SECTION (6) Chief Financial Officer. The Chief Financial Officer
(if any) shall be a Vice President and act in an executive  financial  capacity.
He shall  assist the  Chairman  of the Board and the  President  in the  general
supervision of the Corporation's financial policies and affairs.

                SECTION (7)  Treasurer.  The Treasurer  shall  exercise  general
supervision  over the receipt,  custody and disbursement of corporate funds. The
Treasurer shall cause the funds of the Corporation to be deposited in such banks
as may be  authorized  by the  Board of  Directors,  or in such  banks as may be
designated as  depositaries in the manner provided by resolution of the Board of
Directors.  He shall have such further powers and duties and shall be subject to
such  directions  as may be granted or imposed upon him from time to time by the
Board of Directors, the Chairman of the Board or the President.

                SECTION (8) Secretary.  The Secretary  shall keep or cause to be
kept in one or more books provided for that purpose, the minutes of all meetings
of the Board,  the  committees of the Board and the  stockholders;  he shall see
that all  notices  are duly given in  accordance  with the  provisions  of these
By-Laws and as required  by law;  he shall be  custodian  of the records and the
seal of the Corporation and affix and attest the seal to all stock  certificates
of the  Corporation  (unless the seal of the  Corporation  on such  certificates
shall be a facsimile,  as hereinafter provided) and affix and attest the seal to
all other documents to be executed on behalf of the Corporation  under its seal;
and he shall see that the books,  reports,  statements,  certificates  and other
documents and records required by law to be kept and filed are properly kept and
filed; and in general, he shall perform all the duties incident to the office of
Secretary  and such other  duties as from time to time may be assigned to him by
the Board, the Chairman of the Board or the President.


                                     - 11 -

<PAGE>



                SECTION (9) Removal. Any officer elected, or agent appointed, by
the Board of Directors may be removed by the  affirmative  vote of a majority of
the  Whole  Board  whenever,  in  their  judgment,  the  best  interests  of the
Corporation  would be served  thereby.  Any  officer or agent  appointed  by the
Chairman of the Board or the President  may be removed by him  whenever,  in his
judgment,  the best interests of the  Corporation  would be served  thereby.  No
elected  officer shall have any  contractual  rights against the Corporation for
compensation  by virtue of such election  beyond the date of the election of his
successor,  his death,  his  resignation or his removal,  whichever  event shall
first occur,  except as otherwise provided in an employment contract or under an
employee deferred compensation plan.

                SECTION (10)  Vacancies.  A newly created  elected  office and a
vacancy in any elected office because of death,  resignation,  or removal may be
filled by the Board of Directors  for the  unexpired  portion of the term at any
meeting of the Board of  Directors.  Any vacancy in an office  appointed  by the
Chairman of the Board or the President because of death, resignation, or removal
may be filled by the Chairman of the Board or the President.


                                    ARTICLE V

                  STOCK CERTIFICATES, TRANSFERS AND RECORD DATE

                SECTION (1) Stock  Certificates  and Transfers.  The interest of
each  stockholder  of the  Corporation  shall be evidenced by  certificates  for
shares of stock in such form as the appropriate  officers of the Corporation may
from  time to time  prescribe.  The  certificates  of  stock  shall  be  signed,
countersigned  and  registered  in such manner as the Board of Directors  may by
resolution  prescribe,  which resolution may permit all or any of the signatures
on such certificates to be in facsimile. In case any officer,  transfer agent or
registrar  who has signed or whose  facsimile  signature  has been placed upon a
certificate  has ceased to be such officer,  transfer agent or registrar  before
such  certificate is issued,  it may be issued by the Corporation  with the same
effect as if he were such  officer,  transfer  agent or registrar at the date of
issue.

                SECTION (2) Lost,  Stolen  or  Destroyed  Certificates.  No
certificate for shares of stock in the  Corporation  shall be issued in place of
any certificate alleged to have been lost,  destroyed or stolen,  except on
production  of such evidence of such loss,  destruction or theft and on delivery
to the  Corporation of a bond of  indemnity  in such amount, upon such terms and
secured by such surety,  as the Board of  Directors or any financial officer may
in its or his discretion require.


                                     - 12 -

<PAGE>



                SECTION  (3)  Transfer  of  Shares.  The  shares of stock of the
Corporation  shall be transferable only upon its books by the holders thereof in
person or by their duly authorized attorneys or legal representatives,  and upon
such transfer the old  certificates  shall be surrendered to the  Corporation by
the delivery thereof to the person in charge of the stock and transfer books and
ledgers,  or to such other person as the directors may  designate,  by whom they
shall be cancelled,  and new  certificates  shall thereupon be issued.  A record
shall  be made of each  transfer  and  whenever  a  transfer  shall  be made for
collateral security,  and not absolutely,  it shall be so expressed in the entry
of the transfer.

                SECTION  (4)  Stockholders   Record  Date.  In  order  that  the
Corporation may determine the  stockholders  entitled to notice of or to vote at
any meeting of stockholders or any adjournment thereof, or to express consent to
corporate  action in writing  without a meeting (if  permitted),  or entitled to
receive  payment of any  dividend  or other  distribution  or  allotment  of any
rights, or entitled to exercise any rights in respect of any change,  conversion
or exchange of stock or for the purpose of any other lawful action, the Board of
Directors  may fix, in advance,  a record date,  which shall not be more than 60
nor less than ten days  before the date of such  meeting,  nor more than 60 days
prior to any other action. A determination of stockholders of record entitled to
notice of or to vote at a meeting of stockholders shall apply to any adjournment
of the meeting;  provided,  however,  that the Board of Directors  may fix a new
record date for the adjourned meeting.


                                   ARTICLE VI

                            MISCELLANEOUS PROVISIONS

                SECTION  (1) Fiscal  Year.  The fiscal  year of the  Corporation
shall  begin on the  first day of  January  and end on the  thirty-first  day of
December of each year.

                SECTION (2)  Dividends.  The Board of Directors may from time to
time declare,  and the Corporation may pay,  dividends on its outstanding shares
in the  manner  and  upon  the  terms  and  conditions  provided  by law and the
Certificate of Incorporation.

                SECTION (3) Seal.  The corporate seal shall have inscribed
thereon the words "Corporate Seal", and around the margin thereof the words
"SPSS Inc. Delaware."

                SECTION (4) Waiver of Notice. Whenever any notice is required to
be given to any stockholder or director of the Corporation  under the provisions
of the General  Corporation  Law of the State of Delaware  or these  By-Laws,  a
waiver thereof in

                                     - 13 -

<PAGE>



writing, signed by the person or persons entitled to such notice, whether before
or after the time stated  therein,  shall be deemed  equivalent to the giving of
such notice.  Neither the business to be transacted  at, nor the purpose of, any
annual or  special  meeting of the  stockholders  or the Board of  Directors  or
committee thereof need be specified in any waiver of notice of such meeting.

                SECTION  (5)  Audits.  The  accounts,  books and  records of the
Corporation  shall be audited  upon the  conclusion  of each  fiscal  year by an
independent certified public accountant selected by the Board of Directors,  and
it shall be the duty of the Board of  Directors  to cause  such audit to be done
annually.

                SECTION (6) Resignations.  Any director or any officer,  whether
elected or appointed,  may resign at any time by giving  written  notice of such
resignation to the Chairman of the Board, the President,  or the Secretary,  and
such resignation  shall be deemed to be effective as of the close of business on
the date said notice is received by the Chairman of the Board, the President, or
the Secretary,  or at such later time as is specified therein.  No formal action
shall be required of the Board of Directors or the stockholders to make any such
resignation effective.


                                   ARTICLE VII

                            Contracts, Proxies, Etc.

                SECTION (1) Contracts.  Except as otherwise required by law, the
Certificate  of  Incorporation   or  these  By-Laws,   any  contracts  or  other
instruments  may be executed and  delivered in the name and on the behalf of the
Corporation  by such  officer or  officers  of the  Corporation  as the Board of
Directors  may from  time to time  direct.  Such  authority  may be  general  or
confined to specific  instances as the Board may determine.  The Chairman of the
Board, the President or any Vice President may execute bonds, contracts,  deeds,
leases  and other  instruments  to be made or  executed  for or on behalf of the
Corporation.  Subject to any  restrictions  imposed by the Board of Directors or
the  Chairman  of  the  Board,  the  President  or  any  Vice  President  of the
Corporation may delegate contractual powers to others under his jurisdiction, it
being understood,  however,  that any such delegation of power shall not relieve
such officer of  responsibility  with respect to the exercise of such  delegated
power.

                SECTION  (2)  Voting  of Shares  in Other  Corporations.  Unless
otherwise provided by resolution adopted by the Board of Directors, the Chairman
of the Board,  the President or any Vice President may from time to time appoint
an attorney or attorneys or agent or agents of the Corporation,  in the name and
on behalf

                                     - 14 -

<PAGE>


of the  Corporation,  to cast the votes which the Corporation may be entitled to
cast as the holder of stock or other securities in any other corporation, any of
whose stock or other securities may be held by the  Corporation,  at meetings of
the holders of the stock or other  securities of such other  corporation,  or to
consent in writing, in the name of the Corporation as such holder, to any action
by such other  corporation,  and may instruct the person or persons so appointed
as to the manner of casting such votes or giving such  consent,  and may execute
or cause to be executed in the name and on behalf of the  Corporation  and under
its corporate seal or otherwise,  all such written proxies or other  instruments
as he may deem necessary or proper in the premises.


                                  ARTICLE VIII

                                   AMENDMENTS

                These By-Laws may be altered or repealed, and any By-Laws may be
made,  at any  annual  meeting of the  stockholders  or at any  special  meeting
thereof if notice of the proposed  alteration or repeal of the By-Laws or of the
By-Laws  to be  made  is  contained  in  the  notice  of  such  meeting,  by the
affirmative  vote of the holders of at least 80% of the voting power of the then
outstanding  Voting Stock, or by the affirmative vote of a majority of the total
number of directors, at any regular meeting of the Board of Directors, or at any
special meeting of the Board of Directors,  if notice of the proposed alteration
or repeal,  or of the  By-Laws to be made,  is  contained  in the notice of such
special meeting.

                                     - 15 -



Wednesday October 1 9:32 AM EDT

Company Press Release

SPSS Completes Quantime Acquisition

CHICAGO  --  (BUSINESS  WIRE)  --  Oct  1,  1997  -- In a  pivotal  acquisition,
statistical software supplier SPSS Inc. (Nasdaq:SPSS) has completed the purchase
of Quantime  Ltd., a leading  supplier of software and services to the marketing
research  industry.  The  transaction,   completed  at  the  close  of  business
yesterday,  was executed as a pooling of interests in which SPSS issued  900,000
shares of its common stock.  Final financial  details of the acquisition will be
disclosed when the company announces 3rd quarter earnings on Oct.
29, 1997.

Quantime  develops  software that takes market  researchers  from  questionnaire
design and survey  administration  through data collection and tabular  reports.
Quantime's software is used by more than 600 organizations worldwide,  including
many of the industry's leading firms. The company's 1996 revenues were over $1.6
million.

"For the first time, market  researchers will have a single-source  supplier for
all their survey research and analysis needs," said Jack Noonan,  SPSS President
and CEO. "SPSS addresses the analytical  aspects and Quantime the other elements
of the  marketing  research  process,  including  questionnaire  design and data
collection.  By connecting the extensive product lines of both companies, we can
re-shape the survey  research  process to make it smoother  and more  efficient,
saving firms both time and money.

"Over fifty  percent of SPSS  customers  use our  products for survey and market
research.  This  particular  move  significantly  strengthens  our position as a
company  advancing  marketing  research  software.  By integrating with Quantime
products, we will have a tremendous advantage in the marketplace. We will be the
sole software  vendor to offer market  researchers  a total  solution - offering
both the best products and complete worldwide support, "Noonan continued."

Ed  Ross,  Chairman  of  Quantime,  said,  "We are  extremely  proud of all that
Quantime  has  accomplished   since  the  company  was  founded  in  1978.  This
acquisition  will move our products to the next generation by combining the best
of two market leaders. With the addition of SPSS' powerful statistical products,
Quantime customers will now have a comprehensive marketing research solution."

SPSS is the leading supplier of statistical  software for the desktop.  SPSS for
Windows, the company's flagship product, features in-depth statistical analysis,
high-resolution   graphics  and   revolutionary   reporting   and   distributing
capabilities.

The integration and enhancement of Quantime's data collection  capabilities with
SPSS' strong analytical functionality and graphics will strengthen both existing
and future products.


<PAGE>


Quantime's  products  will benefit from SPSS'  expertise in  developing  popular
analytical  desktop software and designing  Graphical User Interfaces.  Users in
general are expected to ultimately benefit from a streamlined marketing research
process.

Quantime  employs  approximately  150 people in  offices  in  London,  New York,
Cincinnati,  Mexico City,  San  Francisco and  Amsterdam.  SPSS plans to run the
Quantime operations as part of a new division focused on the firms in the market
research   industry  and  the  market  research   departments  of  Fortune  1000
corporations.

SPSS company information.

SPSS Inc. is a  multinational  company  that  delivers  reporting,  analysis and
modeling  software  products for marketing  research,  business  analysis,  data
mining, quality improvement and scientific research. The company's mission is to
drive the widespread use of statistics.

Used throughout academia,  business and government, the company's major products
and product lines include: SPSS for business and general  applications;  SYSTAT,
SigmaPlot  and  DeltaGraph  for  scientific  research;  NewView  for  analytical
reporting;  QI Analyst for quality  improvement and statistical process control;
and allCLEAR for process  documentation  and  management.  SPSS ranked No. 73 in
Business  Week's Top 100 Growth  Companies for 1997. The company also placed No.
23 on the  1997  Softletter  100,  which  ranks  the top 100  personal  computer
software  companies in the United States; and No. 93 in the 1997 Software 500, a
ranking of the world's largest software vendors by Software  Magazine.  In 1997,
SPSS'  pivot  table  technology  was  added  to  the  Smithsonian  Institution's
Permanent  Research  Collection  of  Information  Technology.  Headquartered  in
Chicago,  SPSS has offices and network of distributors  serving countries around
the  world.   More   information   is   available  on  the  World  Wide  Web  at
http://www.spss.com.



Contact:

SPSS Inc., Chicago
Susan Kalell
800/525-4980
[email protected]




                                      - 2 -



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