Exhibit 10.4

                              AMENDED AND RESTATED
                          TRANSITION SERVICES AGREEMENT


     This AMENDED AND RESTATED  TRANSITION  SERVICES  AGREEMENT dated as of June
30, 1998, among THE DUN & BRADSTREET  CORPORATION,  a Delaware  corporation (the
"Corporation"),  THE NEW DUN & BRADSTREET  CORPORATION,  a Delaware  corporation
("New D&B"), COGNIZANT CORPORATION,  a Delaware corporation  ("Cognizant"),  IMS
HEALTH   INCORPORATED,   a  Delaware   corporation  ("IMS  Health"),   ACNIELSEN
CORPORATION,  a Delaware corporation  ("ACNielsen"),  and GARTNER GROUP, INC., a
Delaware  Corporation  ("Gartner")  amends  and  restates  in its  entirety  the
Transition Services Agreement dated as of October 28, 1996 (the "1996 Transition
Services Agreement") among the Corporation, Cognizant and ACNielsen.

                               W I T N E S S E T H

     WHEREAS,  pursuant to a Distribution Agreement dated as of October 28, 1996
(the  "1996  Distribution  Agreement")  among  the  Corporation,  Cognizant  and
ACNielsen,   each  party  agreed  to  provide  to  the  other  parties   certain
transitional,  administrative and support services, including insurance and risk
management  services,  on the terms set  forth in the 1996  Transition  Services
Agreement and the Appendix thereto.

     WHEREAS, each of the Corporation,  Cognizant and ACNielsen desires to amend
and  restate  the  1996  Transition  Services  Agreement  as set  forth  in this
Agreement and to include New D&B, IMS Health and Gartner as parties hereto;  and
each of New D&B,  IMS  Health  and  Gartner  desires  to  become a party to this
Agreement.

     NOW,  THEREFORE,   in  consideration  of  the  agreements,   covenants  and
provisions in this  Agreement and intending to be legally bound hereby,  each of
the Corporation,  New D&B, Cognizant, IMS Health, ACNielsen and Gartner mutually
covenant and agree as follows:

                                    ARTICLE I
                                SERVICES PROVIDED

     I.1  Transition   Services.   New  D&B  (the   "Provider")   shall  provide
comprehensive  insurance  and  risk  management  services  to  the  Corporation,
Cognizant, IMS Health, ACNielsen and Gartner (each a "Recipient";  collectively,
the "Recipients"). Such services shall include risk identification,  development
of appropriate insurance programs, loss prevention  initiatives,  accounting for
premiums,   deductibles,   retentions  and  defense  costs,   claims  management
(including   coordination   with   insurance   carriers),   the  collection  and
distribution of insurance  proceeds and such other services as the Corporation's
Risk  Management  staff has been  providing 



                                                                               2


to the  Corporation,  Cognizant  and  ACNielsen  as of the date hereof (all such
services, collectively, the "Transition Services").

     I.2  Personnel.  In providing the Transition  Services,  the Provider as it
deems necessary or appropriate in its sole discretion, may (i) use the personnel
of such  Provider  or its  Affiliates,  and (ii)  employ the  services  of third
parties to the extent  such third  party  services  are  routinely  utilized  to
provide similar  services to other businesses of such Provider or are reasonably
necessary for the efficient performance of any of such Transition Services. Each
Recipient  may  retain  at  its  own  expense  its  own  consultants  and  other
professional advisers.

     I.3  Representatives.  Each of the  Corporation,  New D&B,  Cognizant,  IMS
Health,  ACNielsen and Gartner  shall  nominate a  representative  to act as its
primary  contact  person for the  provision  of all of the  Transition  Services
(collectively,  the "Primary  Coordinators").  The initial Primary  Coordinators
shall be Frank Colarusso,  Treasurer, for the Corporation,  John Riley, Director
of Risk Management,  for New D&B, Stuart Goldshein,  Controller,  for Cognizant,
Matthew  Friedman,  Assistant  Treasurer,  for  IMS  Health,  John  Forster  for
ACNielsen  and  Andrea  Tarbox  for  Gartner.  Each  party may treat an act of a
Primary  Coordinator  of another  party as being  authorized by such other party
without  inquiring  behind  such  act  or  ascertaining   whether  such  Primary
Coordinator had authority to so act. The Provider and the relevant  Recipient of
a  Transition  Service  shall  advise each other in writing of any change in the
Primary Coordinators for such Transition Service,  setting forth the name of the
Primary  Coordinator  to be  replaced  and  the  name  of the  replacement,  and
certifying  that the  replacement  Primary  Coordinator is authorized to act for
such party in all matters  relating to this Agreement.  Each of the Corporation,
New  D&B,  Cognizant,   IMS  Health,   ACNielsen  and  Gartner  agree  that  all
communications  relating to the provision of the  Transition  Services  shall be
directed to the Primary Coordinators.

     I.4 Level of  Transition  Services.  (a) The  Provider  shall  perform  the
Transition  Services for which it is responsible  hereunder  following  commonly
accepted  standards of care in the industry  and  exercising  the same degree of
care as it  exercises  in  performing  the same or similar  services for its own
account as of the date of this  Agreement,  with priority equal to that provided
to its  own  businesses  or  those  of any of its  Affiliates,  Subsidiaries  or
divisions.  Nothing in this  Agreement  shall  require the Provider to favor the
businesses  of any  Recipient  over  its own  businesses  or those of any of its
Affiliates, Subsidiaries or divisions.

     (b) The  Provider  shall not be required to provide any  Recipient  of such
Transition Services with extraordinary  levels of Transition  Services,  special
studies,  training,  or  the  like  or  the  advantage  of  systems,  equipment,
facilities,  training,  or  improvements  procured,  obtained  or  made  by  the
Provider.

     (c) In  addition  to being  subject  to the  terms and  conditions  of this
Agreement for the provision of the Transition  Services,  each Recipient  agrees
that the Transition  Services  



                                                                               3


provided by third  parties  shall be subject to the terms and  conditions of any
agreements  between the Provider  and such third  parties.  The  Provider  shall
consult with the relevant  Recipient  concerning the terms and conditions of any
such  agreements to be entered into, or proposed to be entered into,  with third
parties after the date hereof.

     I.5 Limitation of Liability.  In the absence of gross negligence or willful
misconduct  on the part of the  Provider,  and  whether or not the  Provider  is
negligent,  such  Provider  shall not be  liable  for any  claims,  liabilities,
damages,  losses, costs,  expenses (including,  but not limited to, settlements,
judgments,  court costs and reasonable  attorneys'  fees),  fines and penalties,
arising  out of any  actual or  alleged  injury,  loss or  damage of any  nature
whatsoever in providing or failing to provide  Transition  Services for which it
is  responsible   hereunder  to  the  Recipient  of  such  Transition  Services.
Notwithstanding  anything to the  contrary  contained  herein,  in the event the
Provider  commits an error with respect to or  incorrectly  performs or fails to
perform  any  Transition  Service,  at the  relevant  Recipient's  request,  the
Provider  shall use  reasonable  efforts  and good faith to correct  such error,
re-perform  or perform such  Transition  Service at no  additional  cost to such
Recipient;  provided, that the Provider shall have no obligation to recreate any
lost  or  destroyed  data  to  the  extent  the  same  cannot  be  cured  by the
re-performance of the Transition Service in question.

     I.6 Force Majeure. Any failure or omission by a party in the performance of
any  obligation  under  this  Agreement  shall  not be  deemed a breach  of this
Agreement or create any  liability,  if the same arises from any cause or causes
beyond the control of such party, including,  but not limited to, the following,
which, for purposes of this Agreement shall be regarded as beyond the control of
each of the  parties  hereto:  acts  of God,  fire,  storm,  flood,  earthquake,
governmental regulation or direction,  acts of the public enemy, war, rebellion,
insurrection,  riot, invasion, strike or lockout;  provided,  however, that such
party  shall  resume  the   performance   whenever   such  causes  are  removed.
Notwithstanding the foregoing, if such party cannot perform under this Agreement
for a period of forty-five  (45) days due to such cause or causes,  the affected
party may terminate the Agreement with the defaulting party by providing written
notice thereto.

     I.7 Modification of Procedures.  The Provider may make changes from time to
time in its standards and procedures for performing the Transition  Services for
which it is  responsible  hereunder.  Notwithstanding  the  foregoing  sentence,
unless required by law, the Provider shall not implement any substantial changes
affecting a Recipient of the relevant Transition Services unless:

          (a) the Provider has furnished such  Recipient  notice (which shall be
     the same notice the Provider shall provide its own businesses) thereof;

          (b) the Provider changes such procedures for its own businesses at the
     same time; and



                                                                               4


          (c) the Provider gives such Recipient a reasonable  period of time for
     such Recipient (i) to adapt its  operations to accommodate  such changes or
     (ii) to reject the proposed  changes.  In the event such Recipient fails to
     accept or reject a proposed  change on or before a date  specified  in such
     notice of change,  such  Recipient  shall be deemed to have  accepted  such
     change.  In the event such Recipient rejects a proposed change but does not
     terminate  this  Agreement,  such  Recipient  agrees  to  pay  any  charges
     resulting from the Provider's  need to maintain  different  versions of the
     same  systems,  procedures,  technologies,  or services or  resulting  from
     requirements of third party vendors or suppliers.

     I.8 No Obligation to Continue to Use Services.  No Recipient shall have any
obligation  to continue to use the  Transition  Services and may  terminate  the
Transition  Services that the Provider is providing to such  Recipient by giving
the Provider 180 days notice thereof.

     I.9 Provider Access. To the extent reasonably required for personnel of the
Provider  to  perform  the  Transition   Services  for  which  the  Provider  is
responsible  hereunder,  the Recipient of such Transition Services shall provide
personnel of the Provider with access to its  equipment,  office space,  plants,
telecommunications  and computer equipment and systems,  and any other areas and
equipment.

     I.10 Performance Reviews. The Primary Coordinators for each Recipient shall
meet  during  the  fourth  quarter  of  each  calendar  year  with  the  Primary
Coordinator for the Provider for the purpose of reviewing the performance of the
Provider's Risk Management  staff. Any disputes  relating to the quality of such
performance  shall be brought to the attention of the respective Chief Financial
Officers  (or  person  holding  an  equivalent  title) of the  Provider  and the
Recipients.


                                   ARTICLE II
                                  COMPENSATION



                                                                               5


     II.1  Consideration.  As consideration  for the Transition  Services,  each
Recipient  of  Transition  Services  shall pay to the  Provider a portion of the
costs and  expenses  incurred by the  Provider  relating to the Risk  Management
staff as follows: each Recipient shall pay (i) a base charge of $50,000 per year
plus (ii) a proportionate  share of any additional costs and expenses (i.e., not
covered by the total base charge) based on such Recipient's  proportion of total
revenue as a percentage  of the  aggregate  total revenue of all parties to this
Agreement. For purposes of calculating any additional amount payable pursuant to
clause (ii) of the preceding sentence, a party's revenue shall be that set forth
on its audited  financial  statements for the most recent fiscal year-end.  Such
costs and expenses  shall be calculated in accordance  with  generally  accepted
accounting   principles  applied  consistently  and  billed  in  twelve  monthly
installments.  Notwithstanding the foregoing,  however, any services provided by
the Provider's Risk Management  staff to the Provider or the Recipients that are
not in the ordinary  course (all such services being  "extraordinary  services")
shall be borne by the company or companies for whom such  extraordinary  service
was provided.  No  extraordinary  service shall be provided without the specific
approval  of the company to be  charged.  The costs and  expenses to be borne by
each Recipient will be in accordance with the annual Risk  Management  budget to
be provided by the Primary  Coordinator  for the Provider  during the  preceding
calendar  year by May 1 of each year.  The Risk  Management  budget may increase
each year in an amount  equal to 5% over the prior year's  budget;  increases in
excess of 5% must be approved by the respective  Primary  Coordinators  for each
Recipient.

     II.2 Invoices. After the end of each month, the Provider, together with its
Affiliates or Subsidiaries providing Transition Services will submit one invoice
to the  Recipient  of  such  Transition  Services  for all  Transition  Services
provided to such  Recipient  and its  Subsidiaries  by the Provider  during such
month.  Such monthly invoices shall be issued no later than the fifteenth day of
each  succeeding  month.  Each  invoice  shall  include  a  summary  list of the
previously agreed upon Transition Service for which there are fixed dollar fees,
together with documentation supporting each of the invoiced amounts that are not
covered by the fixed fee agreements.  The total amount set forth on such summary
list and such  supporting  detail  shall  equal the invoice  total,  and will be
provided under separate cover apart from the invoice. All invoices shall be sent
to the attention of the Primary  Coordinator of the applicable  Recipient at the
address  set forth in  Section  6.5  hereof  or to such  other  address  as such
Recipient shall have specified by notice in writing to the Provider.

     II.3  Payment  of  Invoices.  (a)  Payment  of all  invoices  in respect of
Transition  Services shall be made by check or electronic funds  transmission in
U.S. Dollars,  without any offset or deduction of any nature whatsoever,  within
thirty (30) days of the invoice date.  All payments shall be made to the account
designated by the Provider to the relevant Recipient,  with written confirmation
of  payment  sent by  facsimile  to the  Primary  Coordinator  or  other  person
designated thereby.



                                                                               6


     (b) If any payment is not paid when due, the Provider shall have the right,
without  any  liability  to any  Recipient  of  Transition  Services,  or anyone
claiming  by or  through  such  Recipient,  upon  five  days'  notice,  to cease
providing any or all of the Transition Services provided by the Provider to such
Recipient, which right may be exercised by the Provider in its sole and absolute
discretion.

                                   ARTICLE III
                                 CONFIDENTIALITY

     III.1 Obligation.  Each party and its Subsidiaries  shall not use or permit
the use of (without the prior  written  consent of the other  parties) and shall
keep, and shall cause its  consultants  and advisors to keep,  confidential  all
information  concerning the other parties received  pursuant to or in connection
with this  Agreement.  Additionally,  any  information  which is identified by a
party as being "highly sensitive" (in connection with a contemplated acquisition
or otherwise)  shall not be disclosed  outside of the Provider's Risk Management
staff.

     III.2 Care and  Inadvertent  Disclosure.  With respect to any  confidential
information, each party agrees as follows:

          (a) it  shall  use  the  same  degree  of care  in  safeguarding  said
     information as it uses to safeguard its own information  which must be held
     in confidence; and

          (b) upon the discovery of any  inadvertent  disclosure or unauthorized
     use of said  information,  or upon obtaining notice of such a disclosure or
     use from any other party,  it shall take all  necessary  actions to prevent
     any further inadvertent disclosure or unauthorized use, and, subject to the
     provisions of Section 1.5 above, each such other party shall be entitled to
     pursue any other remedy which may be available to it.


                                   ARTICLE IV
                              TERM AND TERMINATION

     IV.1 Term. This Agreement shall become effective on June 30, 1998 and shall
remain in force for a period of three  years (or in the case of  ACNielsen,  IMS
Health and Gartner  until  November 1, 1999).  After such initial  period,  this
Agreement shall  automatically be renewed for successive  one-year periods as to
each party  unless  such party  provides at least  180-days  notice to the other
parties of its  intention  not to renew;  provided  that this  Agreement  may be
terminated at such other times as are set forth in Sections 1.6, 1.8 and 4.3.

     IV.2 Reserved.



                                                                               7


     IV.3 Default.  If any party (hereafter called the "Defaulting Party") shall
fail to perform or default in the  performance of any of its  obligations  under
this Agreement (other than a payment default), the party entitled to the benefit
of such performance  (hereinafter  referred to as a "Non-Defaulting  Party") may
give  written  notice to the  Defaulting  Party  specifying  the  nature of such
failure  or  default  and  stating  that the  Non-Defaulting  Party  intends  to
terminate this Agreement with respect to the Defaulting Party if such failure or
default is not cured within fifteen days of such written notice.  If any failure
or default so  specified  is not cured  within  such  fifteen  day  period,  the
Non-Defaulting  Party may elect to  immediately  terminate  this  Agreement with
respect to the  Defaulting  Party;  provided,  however,  that if the  failure or
default  relates to a dispute  contested in good faith by the Defaulting  Party,
the Non-Defaulting Party may not terminate this Agreement pending the resolution
of such dispute in accordance with Article V hereof.  Such termination  shall be
effective upon giving a written notice of  termination  from the  Non-Defaulting
Party to the Defaulting Party and shall be without prejudice to any other remedy
which may be available to the Non-Defaulting Party against the Defaulting Party.

     IV.4  Termination of Obligations.  Each Recipient  specifically  agrees and
acknowledges  that all  obligations  of the  Provider to provide the  Transition
Services  shall  immediately  cease,  with respect to such  Recipient,  upon the
termination  of this Agreement as to such  Recipient.  Upon the cessation of the
Provider's  obligation to provide any  Transition  Service to a Recipient,  such
Recipient shall immediately cease using, directly or indirectly,  the Transition
Services (including, without limitation, any and all software of the Provider or
third party software provided through the Provider,  telecommunications services
or equipment, or computer systems or equipment).

     IV.5 Survival of Certain Obligations.  Without prejudice to the survival of
the other agreements of the parties, Sections 1.5, 2.1 (with respect to services
provided  prior to the effective time of the  termination),  3.1, 3.2, 4.4, 4.5,
5.1, 6.10, 6.13 and 6.14 shall survive any termination of this Agreement.


                                    ARTICLE V
                               DISPUTE RESOLUTION

     V.1 Dispute  Resolution.  Any disputes arising out of or in connection with
this  Agreement  shall be  settled in  accordance  with the  dispute  resolution
mechanisms set forth in Article VI of the 1996 Distribution Agreement, with each
of the parties hereto being deemed a party to that agreement for this purpose.




                                                                               8


                                   ARTICLE VI
                                  MISCELLANEOUS

     VI.1 Complete Agreement;  Construction. This Agreement shall constitute the
entire  agreement  between the parties with respect to the subject matter hereof
and shall  supersede all previous  negotiations,  commitments  and writings with
respect to such subject matter.

     VI.2 Other  Agreements.  This  Agreement  is not  intended to address,  and
should not be interpreted  to address,  the matters  specifically  and expressly
covered by other agreements between or among the parties.

     VI.3  Counterparts.   This  Agreement  may  be  executed  in  one  or  more
counterparts,  all of which shall be considered one and the same agreement,  and
shall become  effective  when one or more such  counterparts  has been signed by
each of the parties and delivered to the other parties.

     VI.4 Notices.  All notices and other  communications  hereunder shall be in
writing and hand  delivered or mailed by  registered  or certified  mail (return
receipt requested) or sent by any means of electronic message  transmission with
delivery  confirmed  (by voice or  otherwise)  to the  parties at the  following
addresses (or at such other  addresses for a party as shall be specified by like
notice) and will be deemed given on the date on which such notice is received:

                  To the Corporation:

                           R.H. Donnelley Corporation
                           One Manhattanville Road
                           Purchase, New York 10577
                           Telecopy:  (914) 933-6899
                           Attn:  Treasurer

                  With a copy to:

                           R.H. Donnelley Corporation
                           One Manhattanville Road
                           Purchase, New York 10577
                           Telecopy:  (914) 933-6899
                           Attn:  General Counsel



                  To New D&B:

                           The Dun & Bradstreet Corporation
                           220 East 42 Street
                           New York, New York 10017
                           Telecopy:  (212) 883-3403
                           Attn:  Director of Risk Management

                  With a copy to:

                           The Dun & Bradstreet Corporation
                           One Diamond Hill Road
                           Murray Hill, New Jersey  07974
                           Telecopy:  (908) 665-5803
                           Attn:  Chief Legal Counsel

                  To Cognizant:

                           Nielsen Media Research, Inc.
                           299 Park Avenue
                           New York, New York 10171
                           Telecopy:  (212) 708-7504
                           Attn:  Controller

                  With a copy to:

                           Nielsen Media Research, Inc.
                           299 Park Avenue
                           New York, New York 10171
                           Telecopy:  212-708-6927
                           Attn:  Chief Legal Officer

                  To IMS Health:

                           IMS Health Incorporated
                           200 Nyala Farms
                           Westport, Connecticut  06880
                           Telecopy:  (203) 222-4201
                           Attn: Treasurer



                                                                              10


                  With a copy to:

                           IMS Health Incorporated
                           200 Nyala Farms
                           Westport, Connecticut  06880
                           Telecopy:  (203) 222-4201
                           Attn:  General Counsel

                 To ACNielsen:

                           ACNielsen Corporation
                           177 Broad Street
                           Stamford, Connecticut  06901
                           Telecopy:  (203) 961-3177
                           Attn: John Forster

                 With a copy to:

                           ACNielsen Corporation
                           177 Broad Street
                           Stamford, Connecticut  06901
                           Telecopy:  (203) 961-3179
                           Attn:  General Counsel

                 To Gartner:

                           Gartner Group, Inc.
                           P.O. Box 10212
                           56 Top Gallant Road
                           Stamford, Connecticut  06904
                           Telecopy:  (203) 316-6525
                           Attn: Andrea Tarbox

                 With a copy to:

                           Gartner Group, Inc.
                           P.O. Box 10212
                           56 Top Gallant Road
                           Stamford, Connecticut  06904
                           Telecopy:  (203) 316-6525
                           Attn:  General Counsel




                                                                              11


     VI.5 Waivers. The failure of any party to require strict performance by any
other party of any provision in this  Agreement  will not waive or diminish that
party's  right to  demand  strict  performance  thereafter  of that or any other
provision hereof.

     VI.6 Amendments. This Agreement may not be modified or amended except by an
agreement in writing signed by each of the parties hereto.

     VI.7  Assignment.  This  Agreement may not be assigned by any party,  other
than to an Affiliate of such party or pursuant to a corporate  reorganization or
merger,  without the consent of the other party. Any assignment in contravention
of this Section 6.7 shall be void.

     VI.8  Successors and Assigns.  The  provisions to this  Agreement  shall be
binding  upon,  inure to the  benefit of and be  enforceable  by the parties and
their respective successors and permitted assigns.

     VI.9 Subsidiaries.  Each of the parties hereto shall cause to be performed,
and  hereby   guarantees  the  performance  of,  all  actions,   agreements  and
obligations  set forth herein to be performed by any Subsidiary of such party or
by any entity that is contemplated to be a Subsidiary of such party on and after
the applicable Distribution Date.

     VI.10 Third Party  Beneficiaries.  This Agreement is solely for the benefit
of the parties  hereto and should not be deemed to confer upon third parties any
remedy,  claim,  liability,  reimbursement,  claim of action  or other  right in
excess of those existing without reference to this Agreement.

     VI.11  Title and  Headings.  Titles and  headings  to  sections  herein are
inserted for the convenience of reference only and are not intended to be a part
of or to affect the meaning or interpretation of this Agreement.

     VI.12 Reserved.

     VI.13  GOVERNING LAW. THIS AGREEMENT  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.

     VI.14 Consent to Jurisdiction.  Each of the parties  irrevocably submits to
the  exclusive  jurisdiction  of (a) the Supreme Court of the State of New York,
New York  County,  and (b) the United  States  District  Court for the  Southern
District of New York, for the purposes of any suit,  action or other  proceeding
arising out of this Agreement or any transaction  contemplated  hereby.  Each of
the parties agrees to commence any action,  suit or proceeding  



                                                                              12


relating  hereto  either in the United  States  District  Court for the Southern
District  of New York or if such  suit,  action or other  proceeding  may not be
brought in such court for  jurisdictional  reasons,  in the Supreme Court of the
State of New York,  New York  County.  Each of the parties  further  agrees that
service of any process,  summons,  notice or document by U.S. registered mail to
such party's  respective  address set forth above shall be effective  service of
process  for any  action,  suit or  proceeding  in New York with  respect to any
matters to which it has submitted to  jurisdiction in this Section 6.14. Each of
the parties irrevocably and  unconditionally  waives any objection to the laying
of venue of any action,  suit or proceeding arising out of this Agreement or the
transactions  contemplated  hereby in (i) the Supreme  Court of the State of New
York, New York County, or (ii) the United States District Court for the Southern
District of New York, and hereby further irrevocably and unconditionally  waives
and agrees not to plead or claim in any such court that any such action, suit or
proceeding brought in any such court has been brought in an inconvenient forum.

     VI.15  Severability.  In the  event  any  one  or  more  of the  provisions
contained in this Agreement should be held invalid,  illegal or unenforceable in
any  respect,  the  validity,  legality  and  enforceability  of  the  remaining
provisions  contained  herein and  therein  shall not in any way be  affected or
impaired  thereby.  The parties  shall  endeavor in good-faith  negotiations  to
replace the invalid,  illegal or unenforceable provisions with valid provisions,
the economic  effect of which comes as close as possible to that of the invalid,
illegal or unenforceable provisions.

     VI.16 Laws and Government Regulations.  Each Recipient shall be responsible
for (i)  compliance  with all laws and  governmental  regulations  affecting its
businesses and (ii) any use such  Recipient may make of the Transition  Services
to assist it in complying with such laws and governmental regulations. While the
Provider shall not have any  responsibility  for the compliance by the Recipient
of such Transition Services with such laws and regulations,  the Provider agrees
to use  reasonable  efforts to cause the  Transition  Services to be provided by
such party to be designed in such manner that such Transition  Services shall be
able to assist the  Recipient  of such  Transition  Services in  complying  with
applicable legal and regulatory responsibilities.

     VI.17 Relationship of Parties. Nothing in this Agreement shall be deemed or
construed  by the  parties or any third party as creating  the  relationship  of
principal and agent,  partnership or joint venture between the parties, it being
understood  and agreed that no  provision  contained  herein,  and no act of the
parties,  shall be deemed to create any  relationship  between the parties other
than the  relationship of buyer and seller of services nor be deemed to vest any
rights,  interests or claims in any third parties.  The parties do not intend to
waive any privileges or rights to which they may be entitled.

     VI.18 Definitions.  Capitalized terms used herein and not otherwise defined
herein  shall  have  the  meanings  assigned  to such  terms  in the  applicable
Distribution Agreement governing the relevant parties.





     IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  Amended and
Restated  Transition  Services  Agreement  to be executed the day and year first
above written.


                            THE DUN & BRADSTREET CORPORATION


                            By:  /s/ Frank R. Noonan
                                 -----------------------------------
                                 Name:  Frank R. Noonan
                                 Title: Senior Vice President


                            THE NEW DUN & BRADSTREET CORPORATION


                            By:  /s/ Volney Taylor
                                 -----------------------------------
                                 Name:  Volney Taylor
                                 Title: Chairman and Chief Executive Officer


                            COGNIZANT CORPORATION


                            By:  /s/ Kenneth Siegel
                                 -----------------------------------
                                 Name:  Kenneth Siegel
                                 Title: Senior Vice President, General Counsel
                                           and Secretary


                            IMS HEALTH INCORPORATED


                            By:  /s/ Kenneth Siegel
                                 -----------------------------------
                                 Name:  Kenneth Siegel
                                 Title: Senior Vice President, General Counsel
                                           and Secretary




                            ACNIELSEN CORPORATION


                            By:   /s/ John A. Forster
                                 -----------------------------------
                                 Name:  John A. Forster
                                 Title: Vice President and Treasurer


                            GARTNER GROUP, INC.


                            By:   /s/ George C. Roy, Jr.
                                 -----------------------------------
                                 Name:  George C. Roy, Jr.
                                 Title: Senior Vice President - Finance