Document:

Exhibit 10.1

                                 THIRD AMENDMENT
                                       TO
               FIRST AMENDED AND RESTATED REIMBURSEMENT AGREEMENT

                                  RENAISSANCERE

         THIS THIRD AMENDMENT TO FIRST AMENDED AND RESTATED REIMBURSEMENT
AGREEMENT, dated as of April 29, 2005 (this "Amendment"), is made among
RENAISSANCE REINSURANCE LTD., a Bermuda company, RENAISSANCE REINSURANCE OF
EUROPE, a company incorporated in Ireland, GLENCOE INSURANCE LTD., a Bermuda
company, and DAVINCI REINSURANCE LTD., a Bermuda company (each of the foregoing,
an "Account Party"), RENAISSANCERE HOLDINGS LTD., a Bermuda company ("RenRe"),
the banks and financial institutions listed on the signature pages hereto or
that become parties hereto after the date hereof (collectively, the "Lenders"),
and WACHOVIA BANK, NATIONAL ASSOCIATION ("Wachovia"), as Issuing Bank,
Administrative Agent and Collateral Agent for the Lenders.

                                    RECITALS

         A. The Account Parties, RenRe, the Lenders, Wachovia and certain
Co-Documentation Agents have entered into a First Amended and Restated
Reimbursement Agreement dated as of March 31, 2004, as amended by a First
Amendment dated as of November 18, 2004 (the "First Amendment")and a Second
Amendment dated as of March 11, 2005 (such agreement as amended, the
"Reimbursement Agreement"). Capitalized terms not otherwise defined herein shall
have the meanings assigned to such terms in the Reimbursement Agreement.

         B. The First Amendment included an increase of the Total Commitment to
$1,000,000,000. Effective January 18, 2005, the Account Parties voluntarily
reduced the Total Commitment to $850,000,000 pursuant to Section 2.04 of the
Reimbursement Agreement.

         C. The Account Parties have requested that the Reimbursement Agreement
be amended to (i) increase the Total Commitment to $900,000,000 and (ii) extend
the Expiration Date from April 30, 2005 to April 28, 2006.

         D. The Lenders and Wachovia have agreed to amend the Reimbursement
Agreement as requested by the Account Parties and to effect such agreement the
parties have entered into this Amendment.

                             STATEMENT OF AGREEMENT

         NOW, THEREFORE, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the Account Parties, RenRe, the
Lenders and Wachovia (in its various capacities) hereby agree as follows:

                                       1

                                    ARTICLE 1

                                    AMENDMENT

     1.1 AMENDMENT TO SECTION 1.1 (DEFINITION OF EXPIRATION DATE). Section 1.01
of the Reimbursement Agreement is hereby amended by deleting the definition of
"Expiration Date" in its entirety and replacing it as follows:

     "Expiration Date" shall mean April 28, 2006, as such date may be extended
     pursuant to SECTION 2.19.

     1.2 AMENDMENT TO SECTION 1.1 (DEFINITION OF TOTAL COMMITMENT). Section 1.01
of the Reimbursement Agreement is hereby amended by deleting the definition of
"Total Commitment" in its entirety and replacing it as follows:

     "Total Commitment" means at any time the lesser of (a) $900,000,000 (or
     such lesser amount as may be agreed in writing among RenRe, the
     Administrative Agent and the Issuing Bank or greater amount as increased
     pursuant to SECTION 2.18) and (b) the aggregate amount of the L/C
     Commitments then in effect.

     1.3 AMENDMENT TO SECTION 2.05(C) (LETTER OF CREDIT FEES, ETC.). Section
2.05(c)(i) of the Reimbursement Agreement is hereby amended by deleting the
subclause in its entirety and replacing it as follows:

     (i) Each Account Party severally agrees to pay to the Administrative Agent
     for the account of each Lender a commission, payable in arrears quarterly
     on the last Business Day of each March, June, September and December
     commencing June 30, 2005, and on the Expiration Date, on such Lender's Pro
     Rata Share of the average daily aggregate Available Amount during such
     quarter (or shorter period) of all Letters of Credit for the account of
     such Account Party outstanding from time to time at a rate equal to 0.275%
     per annum.

     1.4 AMENDMENT TO SCHEDULE 1 (L/C COMMITMENTS). SCHEDULE 1 of the
Reimbursement Agreement is hereby amended by deleting that Schedule in its
entirety and replacing it with the attached SCHEDULE 1.

     1.5 AMENDMENT TO OTHER SCHEDULES. SCHEDULES 4.01(A), 4.06 and 4.14 of the
Reimbursement Agreement are hereby amended by deleting those Schedules in their
entirety and replacing them with the attached SCHEDULES 4.01(A), 4.06 and 4.14.

                                       2

                                   ARTICLE 2

                         REPRESENTATIONS AND WARRANTIES

     To induce the Lenders and Wachovia to enter into this Amendment and to
induce the Lenders to extend the credit contemplated hereby, RenRe and each
Account Party individually and severally represents and warrants that:

     2.1 COMPLIANCE WITH REIMBURSEMENT AGREEMENT. Each such party is in
compliance with all terms and provisions set forth in the Reimbursement
Agreement to be observed or performed by them. No Substitution Event, Suspension
Event, Default, or Event of Default has occurred and is continuing.

     2.2 REPRESENTATIONS IN REIMBURSEMENT AGREEMENT. The representations and
warranties of each such party (with respect to itself and to RIHL) set forth in
the Reimbursement Agreement, except for those relating to a specific date other
than the date hereof, are true and correct in all material respects on and as of
the date hereof as if made on and as of the date hereof after giving effect to
the Amendment.

     2.3 OTHER CREDIT DOCUMENTS. Each such party, to the extent it is a party to
any of the other Credit Documents, is in compliance with all terms and
provisions set forth therein to be observed or performed by it. Nothing herein
will affect the validity or enforceability of the other Credit Documents, and
all Obligations (including such Obligations as increased pursuant to this
Amendment) secured or guaranteed under such other Credit Documents shall remain
so secured or guaranteed.

                                    ARTICLE 3

                                     GENERAL

     3.1 CONDITIONS PRECEDENT. This Amendment shall be effective as of the date
first written above upon receipt by the Administrative Agent of each of the
following, each dated as of the date hereof (unless otherwise specified), in
form and substance reasonably satisfactory to the Administrative Agent and in
sufficient copies for each Lender:

     (a)  Counterparts of this Amendment duly executed by each Account Party,
          RenRe, Wachovia (in its various capacities) and each Lender.

     (b)  A certificate of each Credit Party and RUM, signed on behalf of such
          Credit Party or RUM by its President, a Director, its Chief Financial
          Officer, or a Vice President (or equivalent officer) certifying to the
          continuing full force and effect, both immediately before and after
          the effectiveness of this Amendment, of each of the following
          agreements (to the extent such entity is a party thereto): the Pledge
          Agreement for each Account Party, the Control Agreement for each
          Account Party, the RIHL Agreement, the RIHL Pledge Agreement, the RIHL
          Control Agreement, and the RenRe Agreement.

                                       3

     (c)  Certified copies of the resolutions of the Board of Directors of each
          Credit Party approving the transactions contemplated by the Amendment.

     (d)  A copy of a certificate of the Registrar of Companies, Secretary of
          State or other appropriate official of the jurisdiction of
          incorporation of each Credit Party, dated reasonably near the date
          hereof, certifying as to the good standing (or local equivalent) of
          such Credit Party to the extent such concept applies in the
          jurisdiction of incorporation of a Credit Party.

     (e)  A certificate of each Credit Party, signed on behalf of such Credit
          Party by its President, a Director, its Chief Financial Officer, or a
          Vice President (or equivalent officer) and its Secretary or any
          Assistant Secretary (the statements made in which certificate shall be
          true on and as of the date hereof), certifying as to (1) a true and
          correct copy of the constitutional documents of such Credit Party as
          in effect on the date on which the resolutions referred to in clause
          (c) above were adopted and on the date hereof (or certifying that such
          constitutional documents as previously delivered remain in effect and
          unchanged), (2) the due incorporation and good standing or valid
          existence of such Credit Party as a company or corporation organized
          under the laws of the jurisdiction of its organization, and the
          absence of any proceeding for the dissolution or liquidation of such
          Credit Party, (3) the truth and correctness in all material respects
          of the representations and warranties made by such Credit Party in the
          Credit Documents as though made on and as of the date hereof, and (4)
          the absence of any event occurring and continuing, or resulting from
          the effectiveness of the Amendment, that constitutes a Substitution
          Event, a Suspension Event, Default or Event of Default, provided that
          the Secretary or Assistant Secretary need certify only as to the
          matters in items (1) and (2) above.

     (f)  A certificate of the Secretary or an Assistant Secretary of each
          Credit Party certifying the names, incumbency and true signatures of
          the officers of such Credit Party authorized to sign this Amendment
          and the other documents to be delivered hereunder (or certifying that
          the equivalent certificate delivered previously remains true and
          accurate in all respects).

     (g)  A favorable opinion, each in form and substance reasonably
          satisfactory to the Administrative Agent, of (1) Willkie Farr &
          Gallagher LLP, special New York counsel for the Credit Parties, (2)
          Conyers Dill & Pearman, special Bermuda counsel for the Credit Parties
          (other than RRE), and (3) A&L Goodbody, special Irish counsel for RRE.

     (h)  Such other documents, certificates, opinions and instruments as the
          Administrative Agent or any Lender may reasonably request.

     3.2 EFFECT OF AMENDMENT. From and after the effective date hereof, all
references to the Reimbursement Agreement set forth in any other Credit Document
or other agreement or instrument shall, unless otherwise specifically provided,
be references to the Reimbursement Agreement as amended or modified hereby and
as may be further amended, modified, restated or

                                       4

supplemented from time to time. In addition, all terms defined in the
Reimbursement Agreement which have been modified pursuant to this Amendment
shall have such modified meanings when used in any other Credit Documents. This
Amendment is limited as specified and shall not constitute or be deemed to
constitute an amendment, modification or waiver of any provision of the
Reimbursement Agreement except as expressly set forth herein. Except as
expressly amended hereby, the Reimbursement Agreement and the other Credit
Documents shall remain in full force and effect in accordance with their terms.

     3.3 ADDITION OF NEW LENDERS. Each Lender party to this Amendment that was
not previously a party to the Reimbursement Agreement (a) represents and
warrants that (i) it has full power and authority, and has taken all action
necessary, to execute and deliver this Amendment and to become a Lender under
the Reimbursement Agreement, (ii) from and after the date hereof, it shall be
bound by the provisions of the Reimbursement Agreement as a Lender thereunder
and, to the extent of its L/C Commitment shown on SCHEDULE 1 hereto, shall have
the obligations of a Lender thereunder, (iii) it has received a copy of the
Reimbursement Agreement, together with copies of the most recent financial
statements delivered pursuant thereto, and such other documents and information
as it has deemed appropriate to make its own credit analysis and decision to
enter into this Amendment and it has made such analysis and decision
independently and without reliance on the Administrative Agent or any other
Lender, and (iv) if it is a Foreign Lender, it has separately delivered to the
Administrative Agent and the Credit Parties any documentation required to be
delivered by it pursuant to the terms of the Reimbursement Agreement, duly
completed and executed by such new Lender; and (b) agrees that (i) it will,
independently and without reliance on the Administrative Agent or any other
Lender, and based on such documents and information as it shall deem appropriate
at the time, continue to make its own credit decisions in taking or not taking
action under the Credit Documents, and (ii) it will perform in accordance with
their terms all of the obligations that by the terms of the Credit Documents are
required to be performed by it as a Lender. Upon the effectiveness of this
Amendment the aggregate Letter of Credit Participating Interests shall be
reallocated among all of the Lenders Pro Rata based upon the L/C Commitments
shown on SCHEDULE 1, it being intended that the new Lender's L/C Commitments and
Letter of Credit Participating Interests shall be pari passu with those of the
other Lenders.

     3.4 APPLICABLE LAW. THIS AMENDMENT HAS BEEN EXECUTED, DELIVERED AND
ACCEPTED IN, AND SHALL BE DEEMED TO HAVE BEEN MADE IN, NEW YORK AND SHALL BE
GOVERNED BY AND CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE
OF NEW YORK (INCLUDING WITHOUT LIMITATION SECTION 5-1401 OF THE GENERAL
OBLIGATIONS LAW OF THE STATE OF NEW YORK, BUT OTHERWISE WITHOUT REGARD TO THE
CONFLICTS OF LAW PROVISIONS THEREOF).

     3.5 COUNTERPARTS. This Amendment may be executed in two or more
counterparts, each of which shall constitute an original, but all of which when
taken together shall constitute but one instrument.

     3.6 EXPENSES. The Account Parties and RenRe agree to pay all out-of-pocket
expenses incurred by the Administrative Agent in connection with the
preparation, execution and delivery of this Amendment, including, without
limitation, all reasonable attorneys' fees.

                                       5

     3.7 HEADINGS. The headings of this Amendment are for the purposes of
reference only and shall not affect the construction of this Amendment.

                      [Signatures begin on following page.]

                                       6

         IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed by their respective officers thereunto duly authorized, as of the date
first above written.

                                           RENAISSANCE REINSURANCE LTD.

                                           By: /s/ John M. Lummis
                                               ---------------------------------
                                           Name:  John M. Lummis
                                           Title: Chief Financial Officer

                                           RENAISSANCE REINSURANCE OF EUROPE

                                           By: /s/ Michael Greene
                                               ---------------------------------
                                           Name: Michael Greene
                                           Title: Director

                                           GLENCOE INSURANCE LTD.

                                           By: /s/ John M. Lummis
                                               ---------------------------------
                                           Name:  John M. Lummis
                                           Title: Chief Financial Officer

                             (SIGNATURES CONTINUED)

                                       7

                                           DAVINCI REINSURANCE LTD.

                                           By: /s/ John M. Lummis
                                               ---------------------------------
                                           Name:  John M. Lummis
                                           Title: Director

                                           RENAISSANCERE HOLDINGS LTD.

                                           By: /s/ John M. Lummis
                                               ---------------------------------
                                           Name:  John M. Lummis
                                           Title: Chief Financial Officer

                                           Address for each Credit Party:
                                           Renaissance House
                                           8-20 East Broadway
                                           Pembroke HM 19 Bermuda
                                           Telecopy:  (441) 292-9453

                     (LENDER SIGNATURES ON FOLLOWING PAGES)

                                       8

                                           WACHOVIA BANK, NATIONAL ASSOCIATION,
                                           as Administrative Agent, as
                                           Collateral Agent, as Issuing Bank and
                                           as a Lender

                                           By: /s/ William R. Goley
                                               ---------------------------------
                                           Name:  William R. Goley
                                           Title: Director

                                       9

                                           NATIONAL AUSTRALIA BANK LIMITED, ABN
                                           12-004-044-937, as Co-Documentation
                                           Agent and as a Lender

                                           By: /s/ Michael G. McHugh
                                              ----------------------------------
                                           Name: Michael G. McHugh
                                              ----------------------------------
                                           Title: Senior Vice President
                                               ---------------------------------

                                       10

                                           ING BANK, N.V., LONDON BRANCH, as
                                           Co-Documentation Agent and as a
                                           Lender

                                           By: /s/ Mike Sharman
                                               ---------------------------------
                                           Name: Mike Sharman
                                               ---------------------------------
                                           Title: Managing Director
                                               ---------------------------------

                                           By: /s/ Nick Marchant
                                               ---------------------------------
                                           Name: Nick Marchant
                                               ---------------------------------
                                           Title: Director
                                               ---------------------------------

                                       11

                                           BARCLAYS BANK PLC, as
                                           Co-Documentation Agent and as a
                                           Lender

                                           By: /s/ Paul Johnson
                                               ---------------------------------
                                           Name: Paul Johnson
                                               ---------------------------------
                                           Title: Relationship Director
                                               ---------------------------------

                                       12

                                        LLOYDS TSB BANK PLC, as Managing
                                        Agent and as a Lender

                                        By: /s/ Jason Eperon
                                            ------------------------------------
                                        Name: Jason Eperon
                                            ------------------------------------
                                        Title: AVP Financial Institutions
                                            ------------------------------------

                                        By: /s/ Candi Obrentz
                                            ------------------------------------
                                        Name: Candi Obrentz
                                            ------------------------------------
                                        Title: AVP Financial Institutions -- CIB
                                            ------------------------------------

                                       13

                                           KEYBANK NATIONAL ASSOCIATION, as a
                                           Lender

                                           By: /s/ Mary K. Young
                                               ---------------------------------
                                           Name: Mary K. Young
                                               ---------------------------------
                                           Title: Vice President
                                               ---------------------------------

                                       14

                                           BAYERISCHE HYPO-UND VEREINSBANK AG,
                                           as a Lender

                                           By: /s/ Stephen R. Lueker
                                               ---------------------------------
                                           Name: Stephen R. Lueker
                                               ---------------------------------
                                           Title: Director
                                               ---------------------------------

                                           By: /s/ Paul Dolan
                                               ---------------------------------
                                           Name: Paul Dolan
                                               ---------------------------------
                                           Title: Director
                                               ---------------------------------

                                       15

                                           BANK OF AMERICA, N.A., as a Lender

                                           By: /s/ Debra Basler
                                               ---------------------------------
                                           Name: Debra Basler
                                               ---------------------------------
                                           Title: Senior Vice President
                                               ---------------------------------

                                       16

                                           CITIBANK, N.A., as a Lender

                                           By: /s/ Peter C. Bickford
                                               ---------------------------------
                                           Name: Peter C. Bickford
                                               ---------------------------------
                                           Title: Vice President
                                               ---------------------------------

                                       17

                                           MELLON BANK, N.A., as a Lender

                                           By: /s/ Karla K. Maloof
                                               ---------------------------------
                                           Name: Karla K. Maloof
                                               ---------------------------------
                                           Title: First Vice President
                                               ---------------------------------

                                       18

                                           BNP PARIBAS, as a Lender

                                           By: /s/ Joshua Landau
                                               ---------------------------------
                                           Name: Joshua Landau
                                               ---------------------------------
                                           Title: Vice President
                                               ---------------------------------

                                           By: /s/ Laurent Vanderzyppe
                                               ---------------------------------
                                           Name: Laurent Vanderzyppe
                                               ---------------------------------
                                           Title: Director
                                               ---------------------------------

                                       19

                                           THE BANK OF NOVA SCOTIA, as a Lender

                                           By: /s/ Todd S. Meller
                                               ---------------------------------
                                           Name: Todd S. Meller
                                               ---------------------------------
                                           Title: Managing Director
                                               ---------------------------------

                                       20<PAGE>
                                                                   EXHIBIT 10.53

                AMENDED AND RESTATED CHANGE OF CONTROL AGREEMENT

         This Amended and Restated Change of Control Agreement (this
"Agreement"), dated as of ________, ____ (the "Effective Date"), is by and
between SPSS Inc., a Delaware corporation having its principal offices at 233
South Wacker Drive, Chicago, Illinois 60606 ("SPSS" or the "Company"), and
_______________, a senior management employee of SPSS (the "Employee").

         WHEREAS, the Employee is presently serving as the _____________________
of SPSS;

         WHEREAS, SPSS previously entered in a change of control agreement with
the Employee (the "Prior Agreement"), and SPSS and Employee now desire to amend
and restate the terms of the Prior Agreement by entering into this Agreement,
the terms of which shall replace the terms of the Prior Agreement and govern the
relationship between the parties hereto regarding the subject matter set forth
herein as of the Effective Date; and

         WHEREAS, SPSS desires to provide the Employee with the benefits set
forth herein in consideration of the Employee's continued employment with the
Company, and the Employee is willing to continue his employment with SPSS and
enter into this Agreement on the terms and conditions set forth herein.

         NOW, THEREFORE, in consideration of the foregoing, the mutual covenants
and conditions contained herein and other good and valuable consideration, the
receipt and sufficiency of which is hereby acknowledged, the parties hereto
mutually agree as follows:

         1.  Certain Defined Terms.

             (a) "Change of Control," as used herein, shall mean any one or more
of the following: (i) the accumulation, by any individual, entity or group
(within the meaning of Section 13(d)(3) or 14(d)(2) of the Securities Exchange
Act of 1934, as amended (the "Exchange Act")) of greater than fifty percent
(50%) of the shares of the then outstanding common stock of SPSS, (ii) a merger
or consolidation of SPSS in which SPSS does not survive as an independent public
company, (iii) a sale of all or substantially all of the assets of SPSS, (iv) a
triggering event under that certain Amended and Restated Rights Agreement, dated
as of August 31, 2004, by and between SPSS and Computershare Investor Services,
LLC or any amendment, restatement or replacement thereof, (v) a liquidation
or dissolution of SPSS, or (vi) a change in the composition of the Board, not
previously endorsed by the Board existing as of the date of this Agreement or
the directors' endorsed successors, as a result of which fewer than a majority
of the directors are Incumbent Directors ("Incumbent Directors" are directors
who either (A) are directors of the Company as of the date of this Agreement, or
(B) are nominated for election to the Board by the Nominating Committee and
endorsed by the Board existing as of the date of this Agreement or the
directors' endorsed successors); provided, however, that the following
acquisitions shall not constitute a Change of Control for the purposes of this
Agreement: (i) any acquisitions of common stock or securities convertible into
common stock directly from SPSS, or (ii) any acquisition of common stock or
securities convertible into common stock by any employee benefit plan (or
related trust) sponsored or maintained by SPSS. Notwithstanding the foregoing
definition, to the extent that the Internal Revenue Code, Section 409A ("Section
409A"), applies to this definition of "Change of Control," the definition of
"Change of Control" set forth in any regulations or guidance regarding Section
409A, as interpreted by the Internal Revenue Service, shall govern to the extent
that such definition is inconsistent with the foregoing definition.

             (b) "Constructive Termination," as used herein, shall mean

                 (i)   a reduction, for a reason other than Good Cause, in
         Employee's base compensation or total compensation package, including
         benefit plans and programs

<PAGE>

         (as compared to the compensation package which the Employee received in
         the full fiscal year immediately preceding the year in which the
         Effective Date occurred), which reduction occurs during any twelve
         month period beginning on or after the Effective Date and ending on or
         prior to the later of (x) the second anniversary date of the Effective
         Date or (y) the date on which any SPSS stock options and stock
         appreciation rights then held by the Employee become fully vested; or

                 (ii)  any action (an "Action") taken by the Company or the
         Surviving Entity (as defined herein) following a Change of Control, for
         a reason other than Good Cause, which results in a material
         diminishment of the Employee's job assignment, duties,
         responsibilities, or reporting relationships which is inconsistent with
         his position with SPSS as it existed immediately prior to the Effective
         Date.

                 (iii) a change in Employee's principle location of employment
         by more than fifty (50) miles from that location of employment which
         existed immediately prior to the Effective Date.

         In order for the events set forth in subsections (b)(i) and (b)(ii)
         above to constitute a Constructive Termination, such events must be
         followed within ninety (90) days by the resignation of the Employee.

             (c) "Effective Date," as used herein, shall mean the date on which
a Change of Control becomes effective.

             (d) "Good Cause," as used herein, shall mean:

                 (i)   the conviction of a crime involving theft or fraud;

                 (ii)  illegal use of a controlled substance; or

                 (iii) the engagement in fraud or embezzlement.

             (e) "Surviving Entity," as used herein, shall mean the entity
surviving a transaction between SPSS and another company (with the term
"company" to include but not be limited to any individual, group of individuals,
partnership, corporation, or other similar entities).

         2.  Treatment of Stock Options, Restricted Stock Units, Restricted
Stock and Stock Appreciation Rights upon Change of Control. In the event of a
Change of Control, the Employee shall be entitled to the following benefits
(which benefits shall be distributed only in compliance with the terms of
Paragraph 5 hereof):

             (a) Change of Control in a Transaction with a Private Company. In
the event a Change of Control occurs as the result of a transaction between SPSS
and a company whose common stock is not publicly traded on a domestic national
stock exchange, the NASDAQ national market, or their respective successors or
equivalents (a "Private Company"), then:

                 (i)   all of Employee's stock options (vested and unvested)
                       granted by SPSS prior to the Effective Date (A) shall
                       accelerate and shall be deemed to be exercised in full
                       upon the Effective Date by means of a cashless exercise
                       and (B) with regard to the underlying stock,

                                     - 2 -
<PAGE>

                       shall be cashed out at the transaction value as
                       calculated as of the Effective Date and shall be paid by
                       the Surviving Entity to Employee on the Effective Date;

                 (ii)  all of Employee's restricted stock units (vested and
                       unvested) granted by SPSS prior to the Effective Date (A)
                       shall accelerate and shall be deemed to be fully vested
                       upon the Effective Date and (B) with regard to the
                       underlying stock, shall be cashed out at the transaction
                       value as calculated as of the Effective Date and shall be
                       paid by the Surviving Entity to Employee on the Effective
                       Date;

                 (iii) all restrictions on transferability of restricted stock
                       held by the Employee on the Effective Date shall
                       accelerate and shall be deemed to have terminated
                       immediately prior to the Effective Date, and such
                       restricted stock shall be cashed out at the transaction
                       value as calculated as of the Effective Date and shall be
                       paid by the Surviving Entity to the Employee on the
                       Effective Date; and

                 (iv)  all of the stock appreciation rights (vested and
                       unvested) granted by SPSS prior to the Effective Date (A)
                       shall accelerate, shall be deemed to be exercised in full
                       upon the Effective Date and the value thereof shall be
                       exchanged for SPSS stock at the market value of such
                       stock immediately prior to the Effective Date and (B)
                       with regard to the underlying stock, shall be cashed out
                       at the transaction value as calculated as of the
                       Effective Date and shall be paid by the Surviving Entity
                       to Employee on the Effective Date.

             (b) Change of Control in a Transaction With a Public Company. In
the event a Change of Control occurs between SPSS and a company whose common
stock is publicly traded on the domestic national exchange, the NASDAQ national
market, or their respective successors and equivalents (a "Public Company"),
then

                 (i)   all of Employee's stock options (vested and unvested)
                       granted by SPSS prior to the Effective Date (A) shall
                       accelerate and shall be deemed to be exercised in full
                       upon the Effective Date by means of a cashless exercise
                       and (B) with regard to the underlying stock, shall be
                       exchanged, on the Effective Date, for a proportionate
                       share of the consideration to be paid in connection with
                       the Change of Control.

                 (ii)  all of Employee's restricted stock units (vested and
                       unvested) granted by SPSS prior to the Effective Date (A)
                       shall accelerate and be deemed to be fully vested upon
                       the Effective Date and (B) with regard to the underlying
                       stock, shall be exchanged, on the Effective Date, for a
                       proportionate share of the consideration to be paid in
                       connection with the Change of Control.

                 (iii) all restrictions on transferability of restricted stock
                       held by the Employee on the Effective Date shall
                       accelerate and shall be

                                     - 3 -
<PAGE>

                       deemed to have terminated immediately prior to the
                       Effective Date, and such restricted stock shall be
                       exchanged, on the Effective Date, for a proportionate
                       share of the consideration to be paid in connection with
                       the Change of Control; and

                 (iv)  all of the stock appreciation rights (vested and
                       unvested) granted by SPSS prior to the Effective Date (A)
                       shall accelerate, shall be deemed to be exercised in full
                       upon the Effective Date and the value thereof shall be
                       exchanged for SPSS stock at the market value of such
                       stock immediately prior to the Effective Date and (B)
                       with regard to the underlying stock, shall be exchanged,
                       on the Effective Date, for a proportionate share of the
                       consideration to be paid in connection with the Change of
                       Control.

To the extent (i) Section 409A of the Internal Revenue Code ("Code") applies to
any of the amounts distributable under this Section 2, and (ii) the Change of
Control occurrence giving Employee a right of payment under this Section 2 does
not constitute a change of control event or otherwise meet the distribution
requirements under Code section 409A(a)(2)(A), the distribution of the amounts
payable under this Section 2 shall be postponed until such time as such
distribution shall first meet the distribution requirements of Code section
409A(a)(2)(A).

         3.  Termination in Connection with a Change of Control. If, upon the
Effective Date or within twenty four (24) months after the Effective Date, the
Surviving Entity terminates Employee's employment without Good Cause or a
Constructive Termination occurs, the Employee shall be entitled to the following
severance package (the "Severance Package"):

             (a) a lump-sum payment, to be paid by the Surviving Entity within
thirty (30) days following the date on which the Employee's employment is
terminated, in the amount of the greater of: (i) the compensation package
received by the Employee from SPSS in the full fiscal year immediately preceding
the year in which the Effective Date occurred or (ii) the total compensation
package to be received by the Employee for the then-current fiscal year, as
approved by the Board, SPSS or the Surviving Entity, as the case may be; and

             (b) for a period of eighteen (18) months following the date on
which Employee's employment was terminated, at the cost of the Surviving Entity,
the same health and welfare benefits that the Employee was receiving at the time
Employee's employment was terminated.

         4.  Non-Competition

             (a) Employee hereby covenants and agrees that during the period of
time that the Employee collects the Severance Package provided in Section 3
above, Employee shall not (i) directly or indirectly (whether through a
partnership of which the Employee is a partner or through any other individual
or entity in which Employee has any interest, legal or equitable, engage in any
business competitive with the business of the Surviving Entity, (ii) directly or
indirectly (whether through a partnership of which Employee is a partner or
through any other individual or entity in which Employee has any interest, legal
or equitable), solicit or otherwise engage with any customers or clients of the
Surviving Entity, in any transactions which are competitors with the software
business of the Surviving Entity which the Surviving Entity did engage in with
those customers or clients, or (iii) directly or indirectly (whether through an

                                     - 4 -
<PAGE>

partnership of which Employee is a partner or through any other individual or
entity in which Employee has an interest, legal or equitable, assist any person
in the development, programming, servicing, maintenance, manufacture, sale,
licensing, distribution or marketing (including, without limitation, giving away
software) of software and related products in competition with the Surviving
Entity's products, in each case in the United States of America or any country
where the Surviving Entity, or its subsidiaries or affiliates are doing business
with respect to the Surviving Entity's products and services, in each case
excluding passive investment interests of less than two percent (2%) in
corporations whose stock is registered under the Securities Exchange Act of
1934, as amended.

             (b) Employee understands that a breach by him of this Section 4 may
cause substantial injury to the Surviving Entity, which may be irreparable
and/or in amounts difficult or impossible to ascertain, and that in the event
Employee breaches this Section 4, the Surviving Entity shall have, in addition
to all other remedies available in the event of a breach of this Agreement, the
right to injunctive or other equitable relief. Further, Employee acknowledges
and agrees that the restrictions and commitments set forth in this Agreement are
necessary to protect the Surviving Entity's legitimate interests and are
reasonable in scope, area and time, and that if, despite this acknowledgement
and agreement, at the time of the enforcement of any provision of this Agreement
a court of competent jurisdiction shall hold that the period or scope of such
provision is unreasonable under the circumstances then existing, the maximum
reasonable period or scope under such circumstances shall be substituted for the
period or scope stated in such provision.

             (c) Should Employee breach this Section 4, all severance payments
shall cease immediately, and the Surviving Entity shall be entitled to pursue
all other available legal or equitable remedies.

         5.  Amendment for Code Section 409A. Notwithstanding any provision of
this Agreement to the contrary, SPSS and Employee agree that to the extent Code
section 409A applies to this Agreement, this Agreement shall be timely amended
to conform to the requirements of paragraphs (a)(2), (a)(3), and (a)(4) of Code
section 409A, as interpreted by guidance issued by the Internal Revenue Service.
Employer and Employee further agree that the Agreement shall be administered in
accordance with the requirements of Code section 409A, and all amounts payable
hereunder shall be distributed only in compliance the requirements of paragraphs
(a)(2), (a)(3) and (a)(4) of such Code section, including, by way of example and
without limitation, Code section 409A(a)(2)(B)(i), which prohibits the
distribution of compensation subject to Code section 409A to a "specified
employee" of a publicly traded company any earlier than six months after the
date of separation of service in the case of a distribution by reason of a
separation of service. No distribution under the Agreement that would fail to
meet the requirements of such paragraphs shall be made.

         6.  Prior Agreement. SPSS and Employee hereby agree that the terms of
this Agreement shall supersede and replace the terms of the Prior Agreement and,
upon execution of this Agreement, the terms of the Prior Agreement shall no
longer be in effect.

                                     - 5 -
<PAGE>

         IN WITNESS WHEREOF the parties have executed this Agreement on the date
first written above.

                                        SPSS INC.

                                        By:
                                               --------------------------------
                                        Name:  Jack Noonan
                                        Its:   President and Chief Executive
                                               Officer

                                        ---------------------------------------
                                        Employee

                                     - 6 -

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