Exhibit 10.8

                  1998 IMS HEALTH INCORPORATED REPLACEMENT PLAN
                          FOR CERTAIN EMPLOYEES HOLDING
                    COGNIZANT CORPORATION EQUITY-BASED AWARDS


1.   Purpose of the Plan

     The  purpose  of the  1998 IMS  Health  Incorporated  Replacement  Plan for
Certain Employees Holding Cognizant Corporation Equity-Based Awards (the "Plan")
is to  provide  for the  award  of  substantially  identical  replacement  stock
options,   replacement   limited  stock  appreciation   rights  and  replacement
restricted  stock to certain  employees (the  "Eligible  Holders") of IMS Health
Incorporated  (the "Company") whose awards under the 1996 Cognizant  Corporation
Key Employees  Stock Incentive Plan and 1996 Cognizant  Corporation  Replacement
Plan for Certain Employees Holding The Dun & Bradstreet Corporation Equity-Based
Awards (the  "Cognizant  Plans") were  cancelled  pursuant to the spinoff of the
Company from Cognizant Corporation  ("Cognizant").  The Company expects that the
Plan will allow it to retain such  employees and to motivate them to exert their
best  efforts  on  behalf  of the  Company  and its  subsidiaries  by  providing
incentives through the replacement awards. The Company also expects that it will
benefit from the added interest which such employees will have in the welfare of
the Company as a result of their proprietary  interest in the Company's success.
It is the intention of the Company that the terms of the replacement awards will
(i) preserve  the  economic  value of the  cancelled  Cognizant  awards and (ii)
except for the terms  described in Sections 7, 8, 9 and 10 of this Plan,  remain
substantially identical to the terms of the cancelled Cognizant awards.

2.   Definitions

     The  following  capitalized  terms  used in the Plan  have  the  respective
meanings set forth in this Section:

     (a)  Act: The Securities Exchange Act of 1934, as amended, or any successor
          thereto.

     (b)  Award: A replacement  Option,  replacement stock appreciation right or
          replacement restricted stock granted pursuant to the Plan.

     (c)  Beneficial  Owner: As such term is defined in Rule 13d-3 under the Act
          (or any successor rule thereto).

     (d)  Board: The Board of Directors of the Company.

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     (e)  Change in Control:  With respect to D&B Replacement Stock Options,  as
          defined in the 1996 Cognizant Corporation Replacement Plan for Certain
          Employees  Holding  The  Dun  &  Bradstreet  Corporation  Equity-Based
          Awards. Otherwise, the occurrence of any of the following events:

          (i) any Person (other than the Company, any trustee or other fiduciary
          holding  securities under an employee benefit plan of the Company,  or
          any company owned, directly or indirectly,  by the stockholders of the
          Company in  substantially  the same  proportions as their ownership of
          stock of the  Company),  becomes  the  Beneficial  Owner,  directly or
          indirectly,  of securities of the Company  representing 20% or more of
          the   combined   voting  power  of  the   Company's   then-outstanding
          securities;

          (ii) during any period of twenty-four months (not including any period
          prior to the Effective Date), individuals who at the beginning of such
          period  constitute the Board,  and any new director  (other than (A) a
          director  nominated by a Person who has entered into an agreement with
          the Company to effect a  transaction  described  in Sections  2(e)(i),
          (iii) or (iv) of the Plan,  (B) a  director  nominated  by any  Person
          (including the Company) who publicly announces an intention to take or
          to consider taking actions  (including,  but not limited to, an actual
          or threatened  proxy contest) which if consummated  would constitute a
          Change in Control or (C) a director nominated by any Person who is the
          Beneficial Owner, directly or indirectly, of securities of the Company
          representing 10% or more of the combined voting power of the Company's
          securities)  whose election by the Board or nomination for election by
          the  Company's  stockholders  was  approved in advance by a vote of at
          least  two-thirds  (2/3) of the  directors  then  still in office  who
          either were directors at the beginning of the period or whose election
          or nomination for election was  previously so approved,  cease for any
          reason to constitute at least a majority thereof;

          (iii) the  stockholders  of the  Company  approve any  transaction  or
          series  of   transactions   under  which  the  Company  is  merged  or
          consolidated   with  any  other  company,   other  than  a  merger  or
          consolidation  (A) which would result in the voting  securities of the
          Company outstanding  immediately prior thereto continuing to represent
          (either by remaining outstanding or by being converted into



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          voting  securities of the  surviving  entity) more than 66 2/3% of the
          combined voting power of the voting  securities of the Company or such
          surviving  entity   outstanding   immediately  after  such  merger  or
          consolidation  and (B) after which no Person  holds 20% or more of the
          combined  voting  power  of  the  then-outstanding  securities  of the
          Company or such surviving entity; or

          (iv)  the  stockholders  of the  Company  approve  a plan of  complete
          liquidation of the Company or an agreement for the sale or disposition
          by the Company of all or substantially all of the Company's assets.

     (f)  Code: The Internal Revenue Code of 1986, as amended,  or any successor
          thereto.

     (g)  Cognizant Replacement Stock Option: A stock option granted pursuant to
          Section 7 of the Plan as a replacement  for a stock option  previously
          granted  under the 1996  Cognizant  Corporation  Key  Employees  Stock
          Incentive Plan.

     (h)  Cognizant  Restricted  Stock:  Restricted  stock  held by an  Eligible
          Holder that was granted under the Cognizant Plans.

     (i)  Committee: The Compensation and Benefits Committee of the Board.

     (j)  Company: IMS Health Incorporated, a Delaware corporation.

     (k)  D&B Plans:  The 1991 Key  Employees  Stock  Option  Plan for The Dun &
          Bradstreet  Corporation  and  Subsidiaries  and the 1982 Key Employees
          Stock Option Plan for The Dun & Bradstreet Corporation.

     (l)  D&B  Replacement  Stock  Option:  A stock option  granted  pursuant to
          Section 7 of the Plan as a replacement  for a stock option  previously
          granted  under the 1996  Cognizant  Corporation  Replacement  Plan for
          Certain   Employees   Holding   The  Dun  &   Bradstreet   Corporation
          Equity-Based Awards.

     (m)  Daily Average  Trading Price:  the average of the high and low trading
          prices for stock on a given day.

     (n)  Disability: Inability to engage in any substantial gainful activity by
          reason of a medically determinable physical or mental impairment which
          constitutes  a permanent and total  disability,  as 



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          defined  in Section  22(e)(3)  of the Code (or any  successor  section
          thereto).  The determination whether an Eligible Holder has suffered a
          Disability  shall be made by the Committee based upon such evidence as
          it deems  necessary and  appropriate.  An Eligible Holder shall not be
          considered  disabled  unless he or she furnishes such medical or other
          evidence of the existence of the Disability as the  Committee,  in its
          sole discretion, may require.

     (o)  Effective  Date:  The date on which the Plan takes effect,  as defined
          pursuant to Section 15 of the Plan.

     (p)  Eligible Holder: As such term is defined in Section 1 of the Plan.

     (q)  Fair Market Value:  On a given date, the  arithmetic  mean of the high
          and low prices of the Shares  asreported on such date on the Composite
          Tape of the  principal  national  securities  exchange  on which  such
          Shares are listed or  admitted to trading,  or, if no  Composite  Tape
          exists for such national securities exchange on such date, then on the
          principal national securities exchange on which such Shares are listed
          or admitted  to trading,  or, if the Shares are not listed or admitted
          on a national  securities  exchange,  the  arithmetic  mean of the per
          Share closing bid price and per Share closing asked price on such date
          as quoted on the National  Association of Securities Dealers Automated
          Quotation  System (or such market in which such  prices are  regularly
          quoted),  or, if there is no market on which the Shares are  regularly
          quoted,  the Fair Market Value shall be the value  established  by the
          Committee in good faith. If no sale of Shares shall have been reported
          on such  Composite Tape or such national  securities  exchange on such
          date or  quoted  on the  National  Association  of  Securities  Dealer
          Automated   Quotation  System  on  such  date,  then  the  immediately
          preceding  date on which  sales of the Shares have been so reported or
          quoted shall be used.

     (r)  IMS Health Restricted Stock:  Restricted stock received by an Eligible
          Holder as a result of the Spinoff.

     (s)  Option:  A Cognizant  Replacement  Stock Option and a D&B  Replacement
          Stock Option.

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     (t)  Person: As such term is used for purposes of Section 13(d) or 14(d) of
          the Act (or any successor sectionthereto).

     (u)  Plan: As such term is defined in Section 1 hereof.

     (v)  Post-Retirement  Exercise  Period:  As such term is defined in Section
          7(f) of the Plan.

     (w)  Shares:  Shares of common  stock,  par value  $0.01 per Share,  of the
          Company.

     (x)  Special  Exercise  Period:  As such term is defined in Section 7(f) of
          the Plan.

     (y)  Spinoff:  the  distribution  of the Shares  owned by  Cognizant to the
          holders of record of shares of Cognizant.

     (z)  Spinoff Date: The date on which the Spinoff was effected.

     (aa) Subsidiary: A subsidiary corporation,  as defined in Section 424(f) of
          the Code (or any successor sectionthereto).

3.   Shares Subject to the Plan

     The total  number of Shares  which may be issued under the Plan is equal to
the aggregate  number of shares  subject to  replacement  awards,  as calculated
pursuant to Sections 7(a),  8(a) and 9 of this Plan. The Shares may consist,  in
whole or in part, of unissued shares or treasury shares. Issuance of Shares upon
exercise of an option or reduction of the number of Shares  subject to an option
upon  exercise of a stock  appreciation  right shall  reduce the total number of
Shares  available  under the Plan.  In  addition,  Shares  which are  subject to
unexercised  stock  options which  terminate or lapse may not be optioned  again
under the Plan.

4.   Administration

     The Plan shall be  administered  by the  Committee,  which may delegate its
duties and  powers in whole or in part to any  subcommittee  thereof  consisting
solely of at least two individuals who are each "non-employee  directors" within
the  meaning of Rule 16b-3 under the Act (or any  successor  rule  thereto)  and
"outside  directors"  within the  meaning of Section  162(m) of the Code (or any
successor section  thereto).  The Committee is authorized to interpret the Plan,
to establish,  amend and rescind any rules and regulations relating to the Plan,
and to make any other  determinations  that it deems  necessary or desirable for
the  administration  of the Plan. The Committee may 



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correct any defect or supply any omission or reconcile any  inconsistency in the
Plan in the manner and to the extent the Committee deems necessary or desirable.
Any decision of the Committee in the  interpretation  and  administration of the
Plan, as described herein, shall lie within its sole and absolute discretion and
shall be final, conclusive and binding on all parties concerned (including,  but
not limited to, Eligible  Holders and their  beneficiaries  or successors).  The
Committee  shall require  payment of any amount it may determine to be necessary
to withhold for federal, state, local or other taxes as a result of the exercise
of an Award. Unless the Committee specifies  otherwise,  the Eligible Holder may
elect to pay a  portion  or all of such  withholding  taxes by (a)  delivery  in
Shares or (b) having  Shares  withheld by the Company from any Shares that would
have  otherwise  been received by the Eligible  Holder.  The number of Shares so
delivered or withheld  shall have an aggregate  Fair Market Value  sufficient to
satisfy the applicable withholding taxes.

5.   Eligibility

     Only Eligible  Holders shall receive grants of  replacement  stock options,
replacement stock appreciation rights and replacement restricted stock under the
Plan.  The granting of a stock option,  stock  appreciation  right or restricted
stock under the Plan shall impose no obligation on the Company or any Subsidiary
to continue the employment of an Eligible  Holder and shall not lessen or affect
the right to terminate the employment of such Eligible Holder.

6.   Limitations

     Options  hereunder  shall only be granted in replacement of Cognizant Stock
Options  (as  defined in  Section  7(a) of the Plan)  held by  Eligible  Holders
immediately prior to the Spinoff Date.

7.   Terms and Conditions of Options

     Stock options granted under the Plan shall be  non-qualified,  and shall be
subject to the  foregoing  and the following  terms and  conditions  and to such
other terms and conditions,  not inconsistent  therewith, as the Committee shall
determine:

          (a) Generally.  As of the Spinoff Date, each unexercised  stock option
     held by an Eligible  Holder that was granted under the  Cognizant  Plans (a
     "Cognizant  Stock  Option")  shall be cancelled,  and such Eligible  Holder
     shall receive a replacement  stock option pursuant to this Plan. The number
     of Shares covered by each  replacement  stock option shall be determined by
     (i) multiplying  the number of shares of Cognizant  common stock covered by
     the cancelled Cognizant Stock Option by a 


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     fraction,  the  numerator  of which is the  average  of the  Daily  Average
     Trading Prices of Cognizant common stock for the five  consecutive  trading
     days  immediately  preceding the first date on which Cognizant common stock
     is traded  ex-dividend,  and the denominator of which is the average of the
     Daily Average Trading Prices of the Shares for the five consecutive trading
     days starting on the first date on which the Shares are traded  regular way
     (the "IMS  Health  Ratio")  and (ii)  rounding  down the  result to a whole
     number of shares.  The option price of each replacement  stock option shall
     be determined by dividing the option price of the cancelled Cognizant Stock
     Option by the IMS Health Ratio.  Unless  otherwise  specified in this Plan,
     all other terms of the replacement stock options shall remain substantially
     identical to those of the cancelled Cognizant Stock Options as set forth in
     the applicable Cognizant Plan and related option agreement(s).

          (b)  Exercisability.  Except as set forth in the Plan,  stock  options
     granted under the Plan shall have substantially identical terms as those of
     the stock options originally  granted under the Cognizant Plans;  provided,
     however,  that in no event shall a replacement  stock option be exercisable
     more than ten years after the date the  original  option was granted  under
     the Cognizant Plans.

          (c) Exercise of Options.  Except as otherwise  provided in the Plan or
     in an Award agreement,  an Option may be exercised for all, or from time to
     time any part, of the Shares for which it is then exercisable. For purposes
     of Section 7 of the Plan, the exercise date of an Option shall be the later
     of the date a notice  of  exercise  is  received  by the  Company  and,  if
     applicable,  (A) the date  payment is received  by the Company  pursuant to
     clauses  (i),  (ii) or (iii) in the  following  sentence or (B) the date of
     sale by a broker of all or a portion of the Shares being purchased pursuant
     to clause (iv) in the following sentence. The purchase price for the Shares
     as to which an Option is exercised  shall be paid to the Company in full at
     the time of exercise at the  election of the  Eligible  Holder (i) in cash,
     (ii) in Shares  having a Fair Market  Value equal to the  aggregate  option
     price for the Shares being purchased and satisfying such other requirements
     as may be imposed by the Committee, (iii) partly in cash and partly in such
     Shares or (iv) through the delivery of irrevocable instructions to a broker
     to deliver  promptly to the Company an amount equal to the aggregate option
     price for the Shares  being  purchased.  No Eligible  Holder shall have any
     rights to dividends or other rights of a stockholder with respect to Shares
     subject to an Option until the Eligible  Holder has given written notice of
     exercise  of the Option,  paid in full for such Shares and, if  applicable,
     has satisfied any other conditions imposed by the Committee pursuant to the
     Plan.

          (d)  Exercisability  of a  Cognizant  Replacement  Stock  Option  Upon
     Termination of Employment by Death or Disability.  If an Eligible  Holder's
     employment  with the Company and its  Subsidiaries  terminates by reason of
     death or  Disability  after  



                                                                               8


     the  date  of  grant  of a  Cognizant  Replacement  Stock  Option,  (i) the
     unexercised  portion of such option shall immediately vest in full and (ii)
     such  portion may  thereafter  be  exercised  during the shorter of (A) the
     remaining  stated  term of such  option or (B) five years after the date of
     death or Disability.

          (e)  Exercisability of a D&B Replacement Stock Option Upon Termination
     of  Employment by Death.  If an  optionee's  employment by the Company or a
     subsidiary terminates by reason of death one year or more after the date of
     grant of the original stock option under the D&B Plans, the D&B Replacement
     Stock Option thereafter may be exercised,  during the three years after the
     date of death or the  remaining  stated  period of such  option,  whichever
     period is shorter,  to the extent to which such option was  exercisable  at
     the  time of  death or  thereafter  would  become  exercisable  during  the
     three-year period after the date of death in accordance with its terms.

          (f)  Exercisability  of a  Cognizant  Replacement  Stock  Option  Upon
     Termination of Employment by Retirement. If an Eligible Holder's employment
     with the Company and its  Subsidiaries  terminates  by reason of Retirement
     after  the  date of grant  of a  Cognizant  Replacement  Stock  Option,  an
     unexercised  Cognizant Replacement Stock Option may thereafter be exercised
     during the shorter of (i) the remaining  stated term of such option or (ii)
     five  years  after  the  date  of  such   termination  of  employment  (the
     "Post-Retirement  Exercise  Period"),  but only to the extent to which such
     option was  exercisable  at the time of such  termination  of employment or
     becomes exercisable during the Post-Retirement  Exercise Period;  provided,
     however,  that if an  Eligible  Holder  dies  within a period of five years
     after such termination of employment,  an unexercised Cognizant Replacement
     Stock Option may  thereafter  be  exercised,  during the shorter of (i) the
     remaining  stated term of such option or (ii) the period that is the longer
     of (A) five years after the date of such  termination  of employment or (B)
     one year after the date of death (the "Special Exercise Period"),  but only
     to the extent to which  such  option  was  exercisable  at the time of such
     termination  of  employment  or  becomes  exercisable  during  the  Special
     Exercise Period. For purposes of this Section 7(f), "Retirement" shall mean
     termination  of  employment  with the  Company or a  Subsidiary  after such
     Eligible  Holder has  attained  age 55 and five  years of service  with the
     Company;  or, with the prior  written  consent of the  Committee  that such
     termination be treated as a Retirement hereunder, termination of employment
     under other circumstances.

          (g)  Exercisability of a D&B Replacement Stock Option Upon Termination
     of Employment by Disability or Retirement.  If an optionee's  employment by
     the  Company  or  a  subsidiary  terminates  by  reason  of  Disability  or
     Retirement  one year or more after the date of grant of the original  stock
     option under the D&B Plans, the D&B Replacement Stock Option thereafter may
     be exercised,  during the five years after the date of such  termination of
     employment or the remaining stated period of such 


                                                                               9


     option, whichever period is shorter, to the extent to which such option was
     exercisable  at the time of such  termination  of  employment or thereafter
     would become  exercisable  during such period in accordance with its terms;
     provided,  however, that if the optionee dies within a period of five years
     after such termination of employment,  any unexercised  stock option may be
     exercised  thereafter,  during either (1) the period ending on the later of
     (i) five years after such termination of employment and (ii) one year after
     the date of death or (2) the period  remaining  in the  stated  term of the
     option, whichever period is shorter, to the extent to which such option was
     exercisable  at the time of death or  thereafter  would become  exercisable
     during the  remainder of the  five-year  period after such  termination  of
     employment in accordance with its terms. For purposes of this Section 7(f),
     "Retirement"  shall mean  termination  of employment  with the Company or a
     subsidiary after the optionee has attained age 55 and completed ten or more
     years of employment with D&B and/or the Company;  or after the optionee has
     attained age 65,  regardless  of the length of such  optionee's  employment
     with D&B and/or the Company.

          (h) Effect of Other Termination of Employment. If an Eligible Holder's
     employment with the Company and its Subsidiaries  terminates for any reason
     other than death,  Disability or  Retirement  after the date of grant of an
     Option as described  above,  an  unexercised  Cognizant  Replacement  Stock
     Option may  thereafter be exercised  during the period ending 90 days after
     the date of such termination of employment, but only to the extent to which
     such Option was exercisable at the time of such  termination of employment.
     If an Eligible Holder's  employment  terminates for any reason,  other than
     Disability, death or Retirement one year or more after the date of grant of
     the original stock option under the D&B Plans as described above,  each D&B
     Replacement  Stock  Option held by such  Eligible  Holder  shall  thereupon
     terminate.  Notwithstanding  the foregoing,  the Committee may, in its sole
     discretion,  accelerate the vesting of unvested Cognizant Replacement Stock
     Options held by an Eligible  Holder if such  Eligible  Holder is terminated
     from  employment  without "cause" (as such term is defined by the Committee
     in its sole discretion) by the Company.

8.   Terms and Conditions of Stock Appreciation Rights

     Stock appreciation  rights (including  limited stock  appreciation  rights)
granted under the Plan shall be subject to the foregoing and the following terms
and  conditions  and to  such  other  terms  and  conditions,  not  inconsistent
therewith, as the Committee shall determine:

          (a) Replacement  Stock  Appreciation  Rights.  As of the Spinoff Date,
     each  unexercised  stock  appreciation  right  (including  a limited  stock
     appreciation  right) held by an Eligible  Holder that was granted under the
     Cognizant Plans (a "Cognizant  SAR") shall be cancelled,  and such Eligible
     Holder 


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     shall receive a replacement stock appreciation right pursuant to this Plan.
     The number of Company stock appreciation rights covered by each replacement
     stock  appreciation right shall be determined by (i) multiplying the number
     of Cognizant  Stock Options  covered by the cancelled  Cognizant SAR by the
     IMS Health  Ratio and (ii)  rounding  down the result to a whole  number of
     stock  appreciation  rights.  The exercise price of each replacement  stock
     appreciation  right shall be determined  by dividing the exercise  price of
     the  cancelled  Cognizant  SAR by the IMS Health  Ratio.  Unless  otherwise
     specified  in  this  Plan,  all  other  terms  of  the  replacement   stock
     appreciation  rights shall remain  substantially  identical to those of the
     cancelled Cognizant SARs as set forth in the applicable Cognizant Plans and
     related Cognizant SAR agreement(s).

          (b) Terms.  Stock  appreciation  rights  shall  cover the same  Shares
     covered  by a  related  option  (or such  lesser  number  of  Shares as the
     Committee  may  determine)  and  shall be  subject  to the same  terms  and
     conditions  as the option  except for such  additional  limitations  as are
     contemplated  by  this  Paragraph  8 (or  as  may be  included  in a  stock
     appreciation right granted hereunder).  Each stock appreciation right shall
     entitle an optionee to surrender to the Company an unexercised  option,  or
     any portion thereof,  and to receive from the Company in exchange  therefor
     an amount equal to the excess of the fair market value on the exercise date
     of one Share  over the  option  price per share  times the number of Shares
     covered by the option, or portion thereof, which is surrendered. The date a
     notice of exercise is received by the Company  shall be the exercise  date.
     Payment  shall be made in Shares or in cash, or partly in shares and partly
     in cash,  valued at such fair market  value,  all as shall be determined by
     the Committee. Stock appreciation rights may be exercised from time to time
     upon actual  receipt by the Company of written  notice of exercise  stating
     the number of Shares subject to an exercisable option with respect to which
     the stock appreciation right is being exercised.  No fractional Shares will
     be issued in payment for stock  appreciation  rights, but instead cash will
     be paid for a fraction or, if the Committee should so determine, the number
     of Shares will be rounded downward to the next whole share.

          (c)  Limitations on  Exercisability.  The Committee  shall impose such
     conditions upon the  exercisability  of stock  appreciation  rights as will
     result,  except upon the occurrence of an event contemplated by replacement
     limited stock  appreciation  rights granted pursuant to this Paragraph 8 or
     contemplated by the provisions of Paragraph 10, in the amount to be charged
     against the Company's  consolidated  income by reason of stock appreciation
     rights  not to  exceed,  in any  one  calendar  year,  two  percent  of the
     Company's  prior calendar year's  consolidated  income before income taxes.
     The Committee also may impose,  in its  discretion,  such other  conditions
     upon the exercisability of stock appreciation rights as it may deem fit.


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          (d) Replacement Limited Stock Appreciation Rights. The Committee shall
     grant replacement  limited stock  appreciation  rights in substantially the
     same  manner in which  replacement  stock  appreciation  rights are awarded
     pursuant  to this  Section  8 of the Plan.  Unless  the  context  otherwise
     requires, whenever the term "stock appreciation right" is used in the Plan,
     such term shall include limited stock appreciation rights.

9.   Terms and Conditions of Restricted Stock

     As  of  the  Spinoff  Date,  Cognizant  Restricted  Stock  and  IMS  Health
Restricted  Stock  held by an  Eligible  Holder  shall  be  forfeited,  and such
Eligible  Holder shall receive  replacement  restricted  stock  pursuant to this
Plan.  The number of shares of  restricted  stock  shall equal (i) the number of
Shares of forfeited IMS Health  Restricted  Stock plus (ii) the number of shares
of forfeited Cognizant Restricted Stock multiplied by a fraction,  the numerator
of which is the average of the Daily Average Trading Prices of Cognizant  common
stock for the five consecutive  trading days starting on the ex-dividend trading
date, and the  denominator of which is the average of the Daily Average  Trading
Prices of the Shares for the five consecutive trading days starting on the first
date on which the Shares are traded regular way. Unless  otherwise  specified in
this Plan,  all other terms of the  replacement  restricted  stock shall  remain
substantially  identical to those of the forfeited Cognizant Restricted Stock as
set forth in the applicable  Cognizant  Plans and related  Cognizant  Restricted
Stock agreement(s).


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Adjustments Upon Certain Events

     Notwithstanding  any  other  provisions  in the Plan to the  contrary,  the
following provisions shall apply to all Awards granted under the Plan:

          (a) Generally.  In the event of any change in the  outstanding  Shares
     after  the  Effective  Date by  reason  of any  Share  dividend  or  split,
     reorganization,    recapitalization,   merger,   consolidation,   spin-off,
     combination  or  exchange  of Shares or other  corporate  exchange,  or any
     distribution  to  stockholders of Shares other than regular cash dividends,
     the Committee in its sole  discretion  and without  liability to any person
     may  make  such  substitution  or  adjustment,  if any,  as it  deems to be
     equitable,  as to (i) the  number  or kind of  Shares  or other  securities
     issued  or  reserved  for  issuance  pursuant  to the Plan or  pursuant  to
     outstanding  Awards,  (ii) the option price and/or (iii) any other affected
     terms of such Awards.

          (b)  Change in  Control.  Except  as  otherwise  provided  in an Award
     agreement or, with respect to D&B Replacement Options in the 1996 Cognizant
     Corporation  Replacement  Plan  for  Certain  Employees  Holding  The Dun &
     Bradstreet  Corporation  Equity-Based  Awards,  in the event of a Change in
     Control,  the Committee in its sole discretion and without liability to any
     person may take such  actions,  if any, as it deems  necessary or desirable
     with  respect  to  any  Award  (including,   without  limitation,  (i)  the
     acceleration of an Award, (ii) the payment of a cash amount in exchange for
     the  cancellation of an Award and/or (iii) the requiring of the issuance of
     substitute Awards that will  substantially  preserve the value,  rights and
     benefits of any affected  Awards  previously  granted  hereunder) as of the
     date of the consummation of the Change in Control.

11.  Successors and Assigns

     The Plan shall be binding on all  successors and assigns of the Company and
an Eligible Holder,  including without  limitation,  the estate of such Eligible
Holder  and the  executor,  administrator  or  trustee  of such  estate,  or any
receiver or trustee in bankruptcy  or  representative  of the Eligible  Holder's
creditors. 


                                                                              13


Nontransferability of Awards

     An Award shall not be  transferable  or assignable  by the Eligible  Holder
otherwise  than by will or by the laws of descent and  distribution.  During the
lifetime  of an Eligible  Holder,  an Award  shall be  exercisable  only by such
Eligible Holder.  An Award exercisable after the death of an Eligible Holder may
be exercised by the legatees,  personal  representatives  or distributees of the
Eligible Holder. Notwithstanding anything to the contrary herein, the Committee,
in its sole  discretion,  shall have the  authority to waive this Section 12 (or
any part  thereof) to the extent that this  Section 12 (or any part  thereof) is
not  required  under the rules  promulgated  under any law,  rule or  regulation
applicable to the Company.

13.  Amendments or Termination

     The Board may  amend,  alter or  discontinue  the Plan,  but no  amendment,
alteration or  discontinuation  shall be made which, (a) without the approval of
the  stockholders of the Company,  would (except as is provided in Section 10 of
the Plan),  increase the total number of Shares reserved for the purposes of the
Plan or change the maximum  number of Shares for which  Awards may be granted to
any  Eligible  Holder or (b) without the  consent of an Eligible  Holder,  would
impair any of the rights or obligations under any Award  theretofore  granted to
such Eligible  Holder under the Plan.  Notwithstanding  anything to the contrary
herein, the Board may not amend, alter or discontinue the provisions relating to
Section 10(b) of the Plan after the occurrence of a Change in Control.

14.  International Eligible Holders

     With  respect to  Eligible  Holders  who reside or work  outside the United
States of  America  and who are not (and who are not  expected  to be)  "covered
employees"  within the meaning of Section 162(m) of the Code, the Committee may,
in its sole  discretion,  amend the terms of the Plan or Awards with  respect to
such Eligible  Holders in order to conform such terms with the  requirements  of
local law.

15.  Choice of Law

     The Plan shall be governed by and construed in accordance  with the laws of
the State of New York  applicable  to contracts  made and to be performed in the
State of New York.

16.  Effectiveness of the Plan

     The Plan shall be effective as of the Spinoff Date.