Document:

From

Russell V. Nathan

<PAGE>

To:      Total Research Acquisitions Limited
         Watermans Park
         40-52 High Street
         Brentford
         Middlesex
         TW8 0BB

         (the "Offeror")

and:     Charles Street Securities, Inc.
         1 Wilton Crescent
         London SW1X 8RN

From:    Russell V. Nathan
         Braywood Farm
         Ascot Road
         Hawthorn Hill
         Maidenhead SL6 3SY

                                                                   13 April 2000

Dear Sirs,

1.       I refer to the press  announcement  in the form of the  draft  attached
         hereto or  initialled by me (the "Press  Announcement")  proposed to be
         released by Charles Street  Securities,  Inc. on behalf of the Offeror,
         which is a wholly  owned  subsidiary  of  Total  Research  Corporation,
         setting  out  the  terms  and  conditions  upon  which  Charles  Street
         Securities,  Inc.  will,  on behalf of the Offeror,  make an offer (the
         "Offer")  to acquire  the whole of the  issued  and to be issued  share
         capital of Romtec plc (the "Offeree").

2.       All references in this undertaking to:

         (A)      "Code" shall mean the City Code on Takeovers and Mergers;

         (B)      "Loan Notes" shall mean the loan notes offered in the Offer;

         (C)      "Offer" shall:

                  (1)      include any offer or offers that may be made by or on
                           behalf of the  Offeror to  acquire,  in both cases on
                           the terms set out in the Offer Document:

                          (a)       the  whole  of  the  share  capital  of  the
                                    Offeree in issue  at  the  date on which the
                                    Offer is made; and

                          (b)       any share  capital of the  Offeree  allotted
                                    while the Offer remains open for  acceptance
                                    or until such  earlier  date as the  Offeror
                                    may determine; and

                  (2)      extend to any new,  increased,  extended  or  revised
                           offer or offers by or on behalf of the  Offeror  made
                           within six  months  after the date on which the Offer
                           is made,  provided that in any such case the terms of
                           such offer or offers are no less  favourable than the
                           terms set out in the Press  Announcement or the Offer
                           Document;

         (D)      "Offer   Document"   shall  mean  the  formal  offer  document
                  substantially  in the form annexed  hereto or initialled by me
                  containing the terms and conditions of the Offer;

         (E)      "Offeree  Shares" shall mean the 4,475,000  ordinary shares of
                  1p each that I hold in the Offeree and shall include any other
                  ordinary   shares  in  the   Offeree   which  I  acquire   and
                  beneficially own after signing this undertaking;

         (F)      "Offer Price" shall mean the price payable under the Offer for
                  ordinary  shares of 1p each in the  Offeree to which the Offer
                  relates, namely 91p per share; and

         (G)      "Principal Amount" means the aggregate nominal amount shown on
                  the loan note certificate  issued to Russell Nathan as part of
                  the First  Payment  or the Final  Instalment  (as the case may
                  be).

3.       I  irrevocably   consent  to  the  issue  of  the  Press   Announcement
         incorporating   references  to  me  and  to  the   provisions  of  this
         undertaking  subject to any  amendments  which may be agreed with me or
         the Offeree's  financial  advisers.  I also consent to the issue of the
         Offer Document,  incorporating  references to me, and to the provisions
         of this undertaking, similar to those references contained in the Press
         Announcement.

4.       In  consideration  of the Offeror  making or procuring  Charles  Street
         Securities,  Inc.  to make on its  behalf  the  Offer  in all  material
         respects on the terms and subject to the conditions  referred to in the
         Press Announcement,  I hereby irrevocably  undertake and warrant to the
         Offeror and Charles Street Securities, Inc. as follows:-

         (A)      I  am  the beneficial  owner and the registered  holder of the
                  Offeree  Shares   and  the  Offeree  Shares  are free from all
                  liens, charges, equities  or  encumbrances. There are no other
                  ordinary  shares  in the  Offeree  registered   in  my name or
                  beneficially   owned,   or managed and  controlled by me (save
                  that Margaret  Deidre Cramb,  my  common law wife, owns shares
                  in the  Offeree),  or in which I have  an  interest and I have
                  no rights,  warrants or options to acquire or  subscribe   for
                  ordinary shares in the Offeree;

         (B)      save   pursuant  to  this   undertaking  I  have  not  agreed,
                  conditionally  or  otherwise,  to dispose of all or any of the
                  Offeree Shares or any interest therein and have (and, upon the
                  Offer being made, will continue to have) all necessary  powers
                  and  authorities to accept or procure  acceptance of the Offer
                  in respect of all the Offeree  Shares  without  infringing any
                  obligation I may owe to anyone else;

         (C)      I shall  accept  the  Offer in  accordance  with its  terms in
                  respect of all the Offeree  Shares by not later than  3.00p.m.
                  on the seventh day after the  despatch of the Offer  Document,
                  and shall  forward or procure  that there is  forwarded,  with
                  such acceptance,  the share certificates or other documents of
                  title in respect of the Offeree Shares in accordance  with the
                  terms of the Offer;

         (D)      subject  to  the  Offer  having  become  unconditional  in all
                  respects, the Offeree  Shares  will be acquired by the Offeror
                  free from all  liens,  charges,   equities   and  encumbrances
                  whatsoever and shall be acquired together with  all  rights to
                  dividends  and  other distributions  hereafter declared,  made
                  or  paid,  save  for  the  interim  dividend  of 2p (net)  per
                  Romtec  Share  declared   in   respect  of the  year  ended 31
                  January 2000, the record date of  which  is 2 May 2000 and the
                  dividend is expected to be paid on 19 May 2000;

         (E)      notwithstanding that I may have become entitled to withdraw my
                  acceptance(s)  of the Offer by virtue of the rules of the Code
                  (or any provision of the Offer giving effect thereto), I shall
                  not withdraw my  acceptance(s)  of the Offer and shall procure
                  that my acceptance(s) of the Offer is not withdrawn in respect
                  of all or any of the Offeree Shares;

         (F)      I shall not without the prior  written  consent of the Offeror
                  purchase or otherwise acquire any shares in the Offeree or any
                  interest therein or agree to do so;

         (G)      prior to the  closing,  lapsing or  withdrawal  of the Offer I
                  shall not, except pursuant to the Offer;

                  (1)      sell, transfer, mortgage, charge, encumber, grant any
                           option  over or  otherwise  dispose  of or permit the
                           sale,   transfer,   mortgaging,   charging  or  other
                           disposition   or  creation  or  grant  of  any  other
                           encumbrance  or  option  of or over all or any of the
                           Offeree Shares or any interest therein, or accept any
                           other offer in respect of all or any of the same;

                  (2)      enter into any agreement, arrangement,  obligation or
                           understanding   (whether   or  not   subject  to  any
                           conditions  and whether or not to take effect upon or
                           following  the  closing  or  lapsing of the Offer) in
                           relation  to, or  operating by reference to shares or
                           other  securities  of the  Offeree or which  would or
                           might  restrict or impede the acceptance by me of the
                           Offer.

         (H)      I will  between  the date of this  undertaking  and the public
                  announcement of the Offer maintain  appropriate  secrecy about
                  the possibility, and terms, of the Offer;

         (I)      at all times  after the date  hereof and until the Offer shall
                  have  closed,   lapsed  or  been  withdrawn  I  shall,  unless
                  otherwise  required by law or the Code, take such action as is
                  within my control as may be required to enable the Offer to be
                  made and become unconditional in all respects and refrain from
                  knowingly  taking any action or making any statement  which is
                  or may be prejudicial to the success of the Offer,  including,
                  without limitation:

                  (1)      soliciting  any other  offer by any  third  party for
                           any part of the issued  share capital of the Offeree;
                           or

                  (2)      save  insofar as required by the rules  contained  in
                           the  Code or by law,  entering  into  discussions  or
                           negotiations  with, or providing any  information to,
                           or  facilitating  in any way any offer for any of the
                           share  capital  of the  Offeree  by,  any such  third
                           party; or

                  (3)      communicating  with  any  person  in  relation  to or
                           discussing  with any person the terms of the Offer or
                           any matter relating thereto without the prior written
                           consent of the Offeror  provided  that this shall not
                           apply to any communications or discussions with my or
                           the Offeree's  professional  advisers who  appreciate
                           the need for and  requirements as to  confidentiality
                           in relation to the Offer;

         (J)      save  as  may be  required  by law or the Code,  I will at all
                  times  after  the  date  hereof and until the Offer shall have
                  closed,  lapsed,  or  been  withdrawn  promptly  notify you in
                  writing  of  any  communication,   invitation,   approach   or
                  inquiry  which  I may receive from any third party  concerning
                  the acquisition of  all  or any of my shares in the Offeree or
                  which  is in  relation  to  or  which  could  lead to an offer
                  eing  made   for   the  whole or any  substantial  part of the
                  share  capital  of the Offeree or the business, undertaking or
                  other assets of the Offeree and/or its subsidiary;

         (K)      I understand and agree that in accordance with the Code:

                  (1)      particulars of this  undertaking and my interests and
                           dealings  in  the  Offeree  in the  period  beginning
                           twelve  months  prior to the offer period (as defined
                           by the  Code)  applicable  to the  Offer  and  ending
                           immediately   prior  to  the  posting  of  the  Offer
                           Document will be contained in the Offer Document; and

                  (2)      this  undertaking  will be available  for  inspection
                           while the Offer is open for acceptance;

         (L)      so  far  as I am reasonably able to do so, I will procure that
                  such  information  as  the Offeror or its advisers  reasonably
                  request in relation to  the  Offeree  and its  subsidiary  and
                  their respective  businesses will be  supplied  to the Offeror
                  as  soon  as practicable following any such request and I will
                  procure  that,  to  the  extent I am able to procure the same,
                  the Offeree and its  subsidiary  provide  the  Offeror and its
                  advisers  with  access  to such of the books and financial and
                  other  records  of the  Offeree  and  its   subsidiary  as the
                  Offeror may  reasonably  require in order to satisfy itself as
                  to  the  business, finances and affairs of the Offeree and its
                  subsidiary;

         (M)      so  far  as I am reasonably  able to do so I will provide such
                  information  and  do such acts as may be reasonably  necessary
                  to prepare and expedite  the  despatch  of the Offer  Document
                  and,  in  particular,  but without prejudice to the generality
                  of the foregoing,  will  procure for the Offeror all necessary
                  information  regarding the  Offeree  and its subsidiary and my
                  interests  and those of the  directors  of  the Offeree in the
                  share   capital  of the Offeree  and  options  over such share
                  capital  which is  required  to be contained  therein in order
                  to  comply   with the  requirements  of the Code and I will as
                  soon as practicable  after  becoming  aware of the same notify
                  you  in  writing of any  material  change in the  accuracy  or
                  import of any information previously supplied to you by me;

         (N)      I will join with the other  directors of the Offeree in making
                  in the Offer  Document a statement  of  responsibility  in the
                  terms or to the effect required by the Code;

         (O)      so far as is not  inconsistent  with my duties or  obligations
                  under the Code or unless I form the bona fide  opinion that it
                  would not be in the interests of shareholders to do so, I will
                  recommend  to all the  shareholders  in the Offeree  that they
                  should  accept the Offer and will agree to a statement to that
                  effect being included in the Offer Document;

         (P)      I will, on the Offer becoming  unconditional  in all respects,
                  (so far as is not  inconsistent  with my fiduciary duties as a
                  director of the  Offeree)  join with the other  members of the
                  board of the Offeree in  appointing  any persons  nominated by
                  the Offeror to the board of the Offeree and its subsidiary and
                  in  approving  alternate  directors  nominated  by such  newly
                  appointed directors; and

         (Q)      so far as I am  reasonably  able  to do so and  subject  to my
                  fiduciary duties as a director of the Offeree,  I will procure
                  that,  from the date  hereof  and  until the date on which the
                  Offer  closes,  lapses  or is  withdrawn,  save with the prior
                  written consent of the Offeror:

                  (1)      the business  of  the Offeree and its subsidiary will
                           be carried on in the ordinary and normal course;

                  (2)      neither  the Offeree  nor its  subsidiary  will sell,
                           transfer,  convey,  charge  or  otherwise  in any way
                           whatsoever dispose of (otherwise than in the ordinary
                           course  of  business)  any  property  or asset of the
                           Offeree or its  subsidiary  which is  material in the
                           context of the Offeree and its subsidiary (taken as a
                           whole); and

                  (3)      save  pursuant to the  exercise of options  under the
                           Offeree's  Executive  Share Option Scheme neither the
                           Offeree  nor its  subsidiary  will issue any  shares,
                           stock  or other  securities  in the  capital  of that
                           company or issue any debenture or loan stock or enter
                           into any contract or other arrangement so to do.

5.       (A) In consideration of the Offeror making, or procuring Charles Street
         Securities,  Inc,  to make the Offer on its  behalf,  I hereby  further
         irrevocably undertake and agree:

                  (1)      to waive the right to receive  11p of the Offer Price
                           in  respect  of  each  of  my  Offeree   Shares  upon
                           acceptance of the Offer (so that the maximum amount I
                           shall be  entitled  to  receive  under  the  Offer in
                           respect of each of my Offeree  Shares  shall (save as
                           specifically provided below) not exceed 80p);

                  (2)      to receive (the "First Payment") (a) 35p of the Offer
                           Price  in cash  in  respect  of  each  of my  Offeree
                           Shares,  and (b) Loan Notes with the Principal Amount
                           thereof  equal to the  aggregate  of 30p of the Offer
                           Price for each of my Offeree Shares within 14 days of
                           the Offer becoming or being declared unconditional in
                           all respects  (the "First  Payment  Date").  The Loan
                           Notes  shall be  issued on and take  effect  from the
                           First  Payment  Date  and I  hereby  irrevocably  and
                           unconditionally  waive  all  right  to  any  interest
                           payable  under such Loan Notes save for that (if any)
                           arising in respect of any period after 10 April 2001;
                           and

                  (3)      to  receive  (subject  as  provided  below) the final
                           instalment   of   the   Offer   Price   (the   "Final
                           Instalment") in respect of each of my Offeree Shares,
                           payable   only  by  the   issue  of  loan   notes  in
                           substantially  the same  terms of the Loan Notes with
                           the Principle Amount equal to the Final Instalment on
                           the 60th day  after  the  second  anniversary  of the
                           First Payment Date  provided that the average  annual
                           profits of the  Offeree on  ordinary  activities  and
                           before  taxation and  exceptional  items over the two
                           successive years commencing on the First Payment Date
                           and the  anniversary  of the First  Payment  Date (X)
                           exceed  (pound)250,000  each  year  and  the  average
                           annual  turnover  of the  Offeree  over  the same two
                           years (Y) exceeds (pound)4,100,000 each year (in each
                           case as shown by the respective  consolidated monthly
                           management  accounts of the Offeree for those periods
                           pro-rated where  necessary),  the amount of the Final
                           Instalment  calculated  as set  out in  (a)  and  (b)
                           below;

                          (a)       subject  as   set   out  below,   the  Final
                                    Instalment shall be the lower of:

                                    (i)     268% of X;

                                    (ii)    16.345% of Y; and

                                    (iii)   (pound)670,250

                          (b)       subject  as  set  out  below,  if X  exceeds
                                    (pound)500,000       and      Y      exceeds
                                    (pound)8,200,000  the Final Instalment shall
                                    be the lower of:

                                    (i)     134% of X;

                                    (ii)    8.1725% of Y; and

                                    (iii)   the aggregate of (pound)670,250 plus
                                            0.1% of X;

                                provided  that the Final  Instalment  will in no
                                instances  exceed  the  equivalent  of  15p  per
                                Offeree Share;

                         subject as provided  below,  if the average  profit and
                         turnover  targets  set out  above  are not  achieved  I
                         hereby irrevocably and unconditionally  waive the right
                         to receive the Final Instalment.

                         Provided always that:

                          (a)      the Offeree's  said  consolidated  management
                                   accounts  shall be  prepared  using  the same
                                   accounting  policies  and  practices as those
                                   applied  in  the  audited   accounts  of  the
                                   Offeree  for  the  financial  year  ended  31
                                   January   2000   and   subject   thereto   in
                                   accordance with generally accepted accounting
                                   principles;

                           (b)     the  Offeree and its  subsidiary  shall until
                                   the second  anniversary  of the First Payment
                                   Date be maintained  as a separate  accounting
                                   entity;

                           (c)     no  transaction  which is not on arms  length
                                   commercial terms shall take place between the
                                   Offeree (or its  subsidiary)  and the Offeror
                                   (and any subsidiary or holding company of the
                                   Offeror);

                           (d)     no corporate, management or other like charge
                                   shall be made by the  Offeror  (or any  other
                                   member of its group)  against  the Offeree or
                                   its subsidiary;

                           (e)     neither the Offeree or its  subsidiary  shall
                                   bear any of the costs incurred by the Offeror
                                   (or its group) in financing the Offer;

                           (f)     if   any   cash   is   extracted   from   the
                                   Offeree  or  its subsidiary  by  the  Offeror
                                   (or any member of its group)after  the  First
                                   Payment  Date,  the Offeror shall only do  so
                                   if the payer has sufficient  working  capital
                                   for its business  after  such  payment and on
                                   the basis that there shall  be  deemed  to be
                                   added to  the   income  of the payer for  the
                                   purposes of  the said  profits   targets  the
                                   interest  which it would have  earned on such
                                   cash had it been so retained by it; and

                           (g)     without prejudice to the foregoing, no action
                                   (save  as  envisaged  by  sub-paragraph  (f))
                                   shall  be  taken  by  the  Offeree   (or  its
                                   subsidiary)    prior    to    the      second
                                   anniversary of the First  Payment Date at the
                                   request of the  Offeror (or any member of its
                                   group)  which in my reasonable  opinion would
                                   materially    and    adversely   affect   the
                                   likelihood  of  the  targets  set  out  above
                                   being  achieved   without  my  prior  consent
                                   Provided that if any  such action is so taken
                                   without my prior consent then if so  required
                                   by me  on  written  notice  within 30 days of
                                   the  action   being   taken  or coming  to my
                                   attention  (if later)  I  shall  be  entitled
                                   to demand that  the said action be  cancelled
                                   or revoked   failing   which the whole of the
                                   15p  per  Offeree Share shall become due  and
                                   payable by the Offeror  to me by way of  loan
                                   note  in substantially  the  same form as the
                                   Loan Notes;

                           (h)     all reasonable costs directly incurred by the
                                   Offeree, the Offeror or me in connection with
                                   the  Offer  or  with  the  provision  by  the
                                   Offeror of Key Man  Insurance  on my life (as
                                   referred to below in Clause 5(B) shall not be
                                   included in the costs of the Offeree, for the
                                   purposes of  calculating  the average  annual
                                   profits of the Offeree as set out in, and for
                                   the purposes of, Clause 5(A)(3);

                  (4)      to waive or vary  such of my  rights  under the Offer
                           which are inconsistent with the above provisions.

         (B)      If before the second anniversary of the First Payment Date, I

                  (1)      die; or

                  (2)      am  dismissed  from my  employment  with the  Offeree
                           otherwise  than by reason of my own gross  misconduct
                           or other cause justifying summary dismissal at common
                           law ,

                  then  (subject  as provided  below) the 15p per Offeree  Share
                  shall  become  immediately  due and  payable  in loan notes in
                  accordance with Clause 5(A)(3) above.

         For  the  purposes  of  the  foregoing provisions of this sub-paragraph
         (B):-

         (a)      I agree to use my reasonable  endeavours to procure (or allow)
                  that the Offeree  takes  out  and  pays for Key Man  Insurance
                  on my life for the  period until  the  second  anniversary  of
                  the First Payment Date in an amount not less than that payable
                  to me  under  the  third tranche of the Offer Price as set out
                  above;

         (b)      In   the   event  that  I  retire  from  the  Offeree  due  to
                  incapacity caused  by  ill health I must notify the Offeror of
                  such  fact  in  writing  within   14   days  of my  retirement
                  (otherwise I shall be deemed not to have  so  retired for such
                  reason)  and  if the  Offeror so chooses by written  notice to
                  me within a further  30  days after receipt of my notice,  the
                  question  of  whether I was  incapable of continuing to fulfil
                  my  role  and  responsibilities  by reason of ill health shall
                  be  conclusively   determined   by   an  independent   medical
                  practitioner  chosen  (in  default of agreement between us) at
                  the  request of  the  Offeror or me by the  President  for the
                  time  being  of the General Medical Council and whose decision
                  as  to  the same after examining me and my medical history and
                  after listening  to  such representations as I and the Offeror
                  shall  make  shall be final and  binding  for the  purposes of
                  the above provisions;

         (c)      If  I  cease to be  employed  by the  Offeree  (other  than by
                  reason  of  (1)  or  (2)   above)  it  shall  conclusively  be
                  presumed   for  the purposes of this Deed only to be by reason
                  of  gross   misconduct   or  other  cause  justifying  summary
                  dismissal  at  common  law   unless   within  30  days  of the
                  termination of my employment I notify the  Offeror  in writing
                  claiming   that  it was not,  in which case unless the Offeror
                  so agrees the matter  shall  be  decided by a Queen's  Counsel
                  appointed  (in  default  of  agreement   between   us)  by the
                  President   for  the time being of The Law Society for England
                  and  Wales  and  whose   decision   as to the same  and  after
                  listening to such representations as  I  and the Offeror shall
                  make  shall be final and  binding  for all   purposes   of the
                  above provisions;

         (d)      the costs and expenses of any independent medical practitioner
                  or  Queen's  Counsel  appointed  pursuant  to any of the above
                  provisions  shall be borne between the Offeror and me as he or
                  she may decide or, failing any such decision, equally.

6.       In  consideration  of the Offeror making,  or procuring  Charles Street
         Securities,  Inc,  to make the Offer on its  behalf,  I hereby  further
         irrevocably undertake and agree that:-

         (A)      for  a  period of 3 years from the date that the Offer becomes
                  or is declared  unconditional  in all respects  ("Completion")
                  I shall  not  either on my own account or in conjunction  with
                  or on behalf of  any  person firm or  company,  carry on or be
                  engaged, concerned  or  interested in carrying on (directly or
                  indirectly) within the United  Kingdom  the business of market
                  research and analysis  similar to or competing  with  that  of
                  the  Offeree   (other than  as a holder of less than 5% of any
                  class of shares or debentures listed on the Stock Exchange);

         (B)      for a period of 3 years after  Completion,  I shall not either
                  on my own account or in  conjunction  with or on behalf of any
                  other person firm or company,  solicit or entice away from the
                  Offeree  any person who at the date  hereof is an  employee of
                  the Offeree whether or not such a person would commit a breach
                  of contract by reason of leaving service or not;

         (C)      for  a  period of 3 years after Completion, I shall not either
                  on my own  account  or in conjunction with or on behalf of any
                  other  person firm or  company,   solicit  or entice away from
                  the  Offeree  for  the  purposes  of  a  business   which   is
                  competitive   with   that of the  Company  at the date of this
                  Deed any person who at  the  date  hereof is a supplier  to or
                  customer of the Offeree (or to  whom  the Offeree has supplied
                  services  within  a  period  of 2 years   prior   to the  date
                  hereof)  whether   such   person  would  commit  a  breach  of
                  contract by reason of transferring such a business or not.

                  Provided as I hereby acknowledge, undertake and agree:

                  (1)      that the above provisions are in addition to and  not
                           in substitution for any restrictions  contained in my
                           service agreement with the Offeree;

                  (2)      that nothing in the above provisions shall prevent or
                           restrict me from  discharging  my  obligations to the
                           Offeree under any such service agreement; and

                  (3)      that  although  I confirm  and  acknowledge  that the
                           above restrictions are reasonable,  in the event that
                           any  such  restriction  shall  be found to be void or
                           voidable  but  would be  valid if some  part or parts
                           thereof  were  deleted  or  the  period  or  area  of
                           application   reduced   then  I   agree   that   such
                           restriction  shall  apply with such  modification  as
                           shall  be  necessary  to make it or  them  valid  and
                           effective.

7.       This  undertaking  shall be governed by, and  construed  in  accordance
         with,   English  law  and  the  English  courts  shall  have  exclusive
         jurisdiction to determine all disputes in relation to it.

8.       Notwithstanding  any other provision  hereof, my obligations under this
         undertaking  and the  Offeror's  obligation  to  make  the  Offer,  are
         conditional  upon the  release of the Press  Announcement  by not later
         than 14 April 2000.  If such  condition  shall not be satisfied by such
         time and date my obligations under this undertaking shall automatically
         lapse and be of no further  force or effect and no party  hereto  shall
         have any claim  against  the other save in  respect  of any  antecedent
         breach of its terms.

9.       The  benefit  of this undertaking may notbe  assigned  by  you or  your
         successors.

10.      I confirm  that I am not the  customer or deemed  customer of either of
         you and that  neither  of you owes me any  duties  or  responsibilities
         (whether  as  regards  best  execution  suitability  or  otherwise)  in
         connection  with the Offer. I further  acknowledge  that Charles Street
         Securities,  Inc. has  indicated to me that it is not acting for me and
         will not be responsible to me for providing protections afforded to its
         customers nor for advising me in relation to the Offer.

Yours faithfully,

SIGNED and DELIVERED                         /s/Russell V. Nathan
as a DEED by Russell V. Nathan
in the presence of:

Witness' signature                           /s/Dawn Andrews

Witness' name                                Dawn Andrews

Witness' address                             5 Sheephouse Road
                                             Maidenhead Berks 5L6 8ES
Witness' occupation                          AccountantDEED OF WARRANTIES
between

Russell V. Nathan
as Warrantor

Total Research Acquisitions Limited

and

Total Research

relating  to  the  proposed  offer  to acquire the whole issued and to be issued
share  capital of Romtec plc

<PAGE>

                                    CONTENTS

1.       Interpretation......................................................1

2.       Warranties..........................................................3

3.       Provisions relating to this Deed....................................4

4.       Law and Jurisdiction................................................4

SCHEDULE 1: WARRANTIES.......................................................6

SCHEDULE 2: WARRANTOR'S PROTECTION..........................................12

                                       i
<PAGE>
THIS DEED is dated the 13th day of April 2000 and made
---------

BETWEEN:

(1)      RUSSELL V. NATHAN, (the " Warrantor"),  of  Braywood  Farm, Ascot Road,
         Hawthorn Hill, Maidenhead,  Berkshire SL6 3SY;

(2)      TOTAL  RESEARCH  ACQUISITIONS   LIMITED,   ("Acquisitions")  a  company
         incorporated  in England and Wales with  company  number  3953021  with
         registered  office at Watermans  Park,  40-52 High  Street,  Brentford,
         Middlesex, TW8 0BB; and

(3)      TOTAL  RESEARCH   CORPORATION,   ("Total   Research"),   a  corporation
         incorporated  in accordance  with the laws of the State of Delaware and
         having  its  principal  place  of  business  at  5  Independence   Way,
         Princeton, New Jersey 08543, USA.

BACKGROUND:
----------

(A)      Romtec plc (the  "Company") is a public limited company incorporated in
         England  and  Wales  under the Companies Acts 1948 to 1980 under number
         1612174.

(B)      The  Warrantor  is the  beneficial  and  registered  owner of 4,475,000
         ordinary shares  comprising  approximately  85  per cent. of the issued
         share capital of the Company.

(C)      In order to induce  Acquisitions to make the Offer (defined below), the
         Warrantor has agreed to enter into this Deed and to make the Warranties
         (defined below) contained herein.

(D)      Acquisitions is a wholly owned subsidiary of Total Research.

THE PARTIES AGREE THAT:
----------------------

1.       INTERPRETATION
         --------------

1.1      DEFINITIONS

         In this Deed where the context admits:

         "Accounts"  means (1) the  audited  consolidated  balance  sheet of the
         Company  and the  Subsidiary  made  up as at 31  January  1999  and the
         audited  consolidated  profit and loss  account of the  Company and the
         Subsidiary  in respect of the  financial  year then ended,  and (2) the
         audited  consolidated  balance sheet of the Company and the  Subsidiary
         made up as at 31 January 2000 and the audited  consolidated  profit and
         loss account of the Company and the  Subsidiary  for the financial year
         then  ended,  (including,  in each  case,  the  notes  thereto  and the
         directors' report and auditors' report).

         "Completion  Date"  means the date upon  which the Offer  becomes or is
         declared unconditional in all respects.

         "Disclosure Letter" means a letter of even date from the Warrantor (or
         his solicitors) and addressed to Acquisitions.

         "Encumbrance"  includes any interest or equity of any person (including
         any right to acquire,  option or right of  pre-emption);  any mortgage,
         charge, pledge, lien, assignment, security

<PAGE>

         interest,  title  retention or other security agreement or arrangement;
         and  any rental,  hire  purchase,  credit sale or other  agreement  for
         payment  on deferred  terms (other than  operating  leases on equipment
         used by the  Company in the ordinary course of business).

         "Intellectual  Property"  means  patents,  trade marks,  service marks,
         applications  for  any of  the  foregoing;  trade  or  business  names;
         copyright (including rights in computer software);  know-how;  lists of
         suppliers  and  customers  and  other   confidential   and  proprietary
         knowledge and information;  rights protecting  goodwill and reputation;
         database  rights and all rights  and forms of  protection  of a similar
         nature to any of the foregoing or having  equivalent effect anywhere in
         the world and all rights under  licences and consents in respect of any
         of the rights and forms of protection mentioned in this definition.

         "Offer" means the offer proposed to be made by  Acquisitions to acquire
         the entire  issued and to be issued share capital of the Company on the
         terms and subject to the conditions set out in the Offer Document.

         "Offer  Document" means the offer document in the form or substantially
         in the form  agreed  by the  parties  to this Deed and  initialled  for
         identification   purposes   containing,   inter  alia,  the  terms  and
         conditions of the Offer.

         "Shares" means the ordinary shares of 1pence each in the capital of the
         Company.

         "Subsidiary"  means  Romtec-GfK  Limited,  a  private  limited  company
         incorporated  in England  and Wales under the  Companies  Act 1985 with
         number 3406509.

         "Taxation" means all taxation,  imposts and duties in the nature of tax
         and any payment  which the Company may be required to make by reason of
         any law relating to the same and all penalties,  charges,  costs and/or
         interest  relating  to the same or any  failure to comply  with any law
         relating to the same.

         "Warranties" means  the warranties and undertakings set out in schedule
         1.

1.2      CONSTRUCTION OF CERTAIN REFERENCES

         In this Deed, where the context admits:

         (A)      references  to persons  being "connected"  shall be  construed
                  within  the  meaning  of  section  286  of  the  Taxation   of
                  Chargeable Gains Act 1992;

         (B)      where any statement is to the effect that the Warrantor is not
                  aware  of  any  matter  or  circumstance,  or  is a  statement
                  qualified by the expression "so far as the Warrantor is aware"
                  or "to the best of the  Warrantor's  knowledge  and belief" or
                  any  similar  expression,  that  statement  shall be deemed to
                  include an  additional  statement  that it has been made after
                  due and careful enquiry of the directors of the Company;

         (C)      references to clauses and schedules are  references to clauses
                  of and schedules to this Deed,  references to paragraphs  are,
                  unless  otherwise  stated,  references  to  paragraphs  of the
                  schedule in which the reference appears and references to this
                  Deed include the schedules;

         (D)      "person" includes any individual, partnership, body corporate,
                  corporation sole or aggregate, state or agency of a state, and
                  any unincorporated  association or organisation,  in each case
                  whether or not having separate legal personality; and

         (E)      references  in  schedule  1 to the "Company" shall include the
                  "Subsidiary" unless the context otherwise requires.

1.3      HEADINGS

         The headings and  sub-headings  are for convenience  only and shall not
         affect construction or interpretation.

1.4      SCHEDULES

         Each of the schedules shall have effect as if set out herein.

2.       WARRANTIES
         ----------

2.1      GENERAL

         In consideration  of Acquisitions  agreeing to make the Offer and Total
         Research  entering into a Second Amended and restated Credit  Agreement
         with Summit Bank, the Warrantor  warrants and undertakes to and for the
         benefit  of  Acquisitions  and  Total  Research  in  the  terms  of the
         Warranties  and  acknowledges  and accepts  that  Acquisitions  will be
         making  and  implementing  the  Offer  in  reliance  upon  each  of the
         Warranties.

2.2      SUBJECT TO DISCLOSURE

         The Warranties  are given subject to matters  fairly  disclosed in this
         Deed or in the Disclosure  Letter with  sufficient  details to identify
         the nature and scope of the matters disclosed.

2.3      WARRANTIES TO BE INDEPENDENT

         Each of the Warranties  shall be separate and independent  and, save as
         expressly  provided,  shall not be  limited by  reference  to any other
         Warranty or anything in this Deed.

2.4      DAMAGES

         Without  restricting the rights of  Acquisitions  and Total Research or
         the ability of  Acquisitions  and/or Total Research to claim damages on
         any other basis,  to the extent not limited in this Deed, the Warrantor
         hereby indemnifies  Acquisitions and Total Research against, and agrees
         to hold  Acquisitions  and Total  Research  harmless  from, any and all
         damage,   loss,   liability   and  expense   incurred  or  suffered  by
         Acquisitions  and/or  Total  Research  arising  out  of any  breach  of
         warranty or undertaking  made by the Warrantor to  Acquisitions  and/or
         Total  Research  made  pursuant  to  paragraph  5 of schedule 1 ("Tax")
         provided that (for the purposes of such indemnity only) Acquisitions or
         Total  Research  is able to  demonstrate  that the  Company  has itself
         suffered loss, damage,  liability and expense greater (or no less) than
         that claimed by  Acquisitions  or Total  Research  under the  foregoing
         indemnity.

2.5      WAIVER OF CLAIMS

         The  Warrantor  undertakes to and for the benefit of  Acquisitions  and
         Total  Research  that he will not make or  pursue  any  claim or action
         howsoever  arising  against  the Company or (save

<PAGE>

         in  the  event  of  their  fraud  or  dishonesty)  any  of the  current
         employees  of  the  Company  in respect  of any loss or  liability  the
         Warrantor  may  incur  pursuant  to this  Deed (or any  other  document
         referred to herein)  or otherwise in connection with the Offer.

2.6      LIMITATION OF LIABILITY

         The  liability of the Warrantor  under or in respect of the  Warranties
         shall be limited as set out in schedule 2.

2.7      WARRANTOR'S CONTINUING OBLIGATION

         The Warrantor  undertakes  with  Acquisitions  and Total  Research that
         until the  Completion  Date he will use his  reasonable  endeavours  to
         procure that the business of the Company is carried on in the usual and
         normal course and take all reasonable steps to preserve the goodwill of
         the business and encourage  customers and suppliers to continue to deal
         with the same and  shall do  nothing  which  will or would be likely to
         injure such goodwill.

3.       PROVISIONS RELATING TO THIS DEED
         --------------------------------

3.1      SUCCESSORS

         This Deed  shall be  binding  upon and  endure  for the  benefit of the
         successors of the parties.  The benefit of this Deed is not  assignable
         by Acquisitions or Total Research.

3.2      WHOLE AGREEMENT AND VARIATIONS

         (A)      This Deed,  together  with any  documents  referred  to in it,
                  constitutes the whole agreement  between the parties  relating
                  to its subject  matter and  supersedes  and  extinguishes  any
                  prior drafts, agreements, and undertakings, whether in writing
                  or oral, relating to such subject matter, except to the extent
                  that the same are repeated in this Deed.

         (B)      No  variation  of  this Deed shall be effective unless made in
                  writing and signed by both of the parties.

3.3      RIGHTS ETC CUMULATIVE AND OTHER MATTERS

         (A)      The rights,  powers,  privileges and remedies provided in this
                  Deed  are  cumulative  and are not  exclusive  of any  rights,
                  powers, privileges or remedies provided by law or otherwise.

         (B)      No failure to exercise nor any delay in exercising  any right,
                  power,  privilege  or remedy  under this Deed shall in any way
                  impair or affect the  exercise  thereof or operate as a waiver
                  thereof in whole or in part.

3.4      COUNTERPARTS

         This Deed may be  executed in any number of  counterparts,  which shall
         together constitute one Agreement.  Each party may enter into this Deed
         by signing either such counterpart.

3.5      COSTS

         Each party  shall bear its own costs  arising  out of or in  connection
         with the preparation, negotiation and execution of this Deed.

4.       LAW AND JURISDICTION
         --------------------

4.1      ENGLISH LAW

         This Deed shall be  governed  by, and  construed  in  accordance  with,
         English law.

4.2      JURISDICTION

         In relation to any legal action or  proceedings to enforce this Deed or
         arising out of or in connection with this Deed  ("Proceedings") both of
         the parties  irrevocably  submits to the exclusive  jurisdiction of the
         English  courts and waives any objection to  Proceedings in such courts
         on the grounds of venue or on the  grounds  that the  Proceedings  have
         been brought in an inconvenient forum.

AS WITNESS the parties have executed this instrument as a deed on the date first
before written.

<PAGE>

                             SCHEDULE 1: WARRANTIES

1.       THE COMPANY AND THE WARRANTOR
         -----------------------------

1.1      LIABILITIES OWING TO OR BY THE WARRANTOR

         There is not outstanding any indebtedness or other liability (actual or
         contingent)  owing by the  Company  to the  Warrantor  or to any person
         connected  with him other than in respect of emoluments  and in respect
         of the reimbursement of expenses,  nor is there any indebtedness  owing
         to the Company by any such person.

1.2      COMPETING INTERESTS

         Neither  the  Warrantor  nor  any  person  connected  with  him has any
         interest,  direct or  indirect,  in any  business  other  than that now
         carried on by the  Company  which is or in the  Warrantor's  reasonable
         opinion is likely to be or become  competitive with the business or any
         proposed business of the Company.

2.       THE COMPANY AND ITS INVESTMENTS
         -------------------------------

2.1      SUBSIDIARIES AND OTHER INVESTMENTS

         The Company:-

         (A)      is not the holder or  beneficial  owner of, and has not agreed
                  to acquire, any share or other capital of any other company or
                  corporation  (whether  incorporated  in the United  Kingdom or
                  elsewhere) other than the Subsidiary;

         (B)      has no branch, agency or place of business outside England and
                  no permanent  establishment  (as that expression is defined in
                  the relevant double taxation relief orders current at the date
                  of this Deed) outside the United Kingdom.

3.       THE COMPANY AND THE LAW
         -----------------------

3.1      COMPLIANCE WITH LAWS

         The Company has  conducted  its  business in all  material  respects in
         accordance  with all  applicable  laws and  regulations  of the  United
         Kingdom and each other  jurisdiction  in which it conducts any business
         and  there  is no  order,  decree  or  judgement  of any  court  or any
         governmental or supranational authority or other competent authority or
         agency of the United Kingdom or any foreign country outstanding against
         the  Company or any person  for whose acts the  Company is  vicariously
         liable  which may have a  material  adverse  effect  upon the assets or
         business of the Company.

3.2      LICENCES ETC

         All licences,  consents,  permits, approvals and authorisations (public
         and private)  necessary  for utilising any of the assets of (other than
         Intellectual  Property  used  by)  the  Company,  or  for  carrying  on
         effectively  any aspect of the Company's  business in the places and in
         the manner in which such  business is now carried on have been obtained
         by the Company and all such licences,  consents,  permits approvals and
         authorisations are in full force and effect.

3.3      LITIGATION

         Neither the  Company  nor any of its  officers or agents nor any of its
         employees is engaged in any litigation or  arbitration,  administrative
         or  criminal  proceedings  (save for debt  collection  in the  ordinary
         course of business),  or any  investigation or enquiry by any authority
         of the United Kingdom or any other jurisdiction which adversely affects
         or is likely to have an adverse effect on the Company's business and/or
         the ability of the Company or any  purchaser to carry on the  Company's
         business  in the same  manner  and to the  same  extent  as  previously
         carried  on,  nor so far  as  the  Warrantor  is  aware  are  any  such
         proceedings, investigations or enquiries pending or anticipated.

3.4      OTHER

         The Company has complied in all respects with the  requirements  of the
         rules of the Alternative Investment Market of the London Stock Exchange
         Limited.

4.       THE COMPANY'S ACCOUNTS AND RECORDS
         ----------------------------------

4.1      BOOKS AND RECORDS

         All accounts, books, ledgers, financial and other records of whatsoever
         kind of the Company have been properly  maintained  in accordance  with
         all applicable legal requirements.

4.2      ACCOUNTS

         The Accounts:

         (A)      were  prepared  in  accordance  with the  requirements  of all
                  relevant statutes and accounting  practices generally accepted
                  in the United  Kingdom at the time they were  prepared  and/or
                  audited  (including  all  applicable  Statements  of  Standard
                  Accounting Practice and Financial Reporting Standards);

         (B)      show a true and fair view of the assets and liabilities of the
                  Company  as at,  and  the  profits  of  the  Company  for  the
                  accounting  reference  period ended on, the date to which they
                  were made up; and

         (C)      apply  bases  and  policies  of  accounting  which  have  been
                  consistently  applied in the audited  financial  statements of
                  the Company for the three accounting  reference periods ending
                  on 31 January 2000.

4.3      PROFITS

         The  profits of the  Company  for the two years ended on the 31 January
         2000 as shown by the Accounts  have not (save as properly  disclosed in
         the Accounts) been affected by any  extraordinary or exceptional  items
         within the meaning of FRS 3 or transactions entered into otherwise than
         on  normal  commercial  terms  or by any  other  factors  known  to the
         Warrantor (but not Total  Research)  rendering such profits for both or
         either of those periods exceptionally high or low.

4.4      PROVISION FOR LIABILITIES

         Proper  provision  or  reserve  has been made in the  Accounts  for all
         actual  liabilities of the Company  outstanding at the date(s) to which
         such accounts are made up and proper  provision (or note) in accordance
         with  and to the  extent  required  by  generally  accepted  accounting
         principles in the United Kingdom at the time they were audited has been
         made therein for all other  liabilities of the Company then outstanding
         whether contingent, quantified, disputed or not.

5.       TAX
         ---

         (A)      The Accounts make proper provision or reserve for all Taxation
                  liable  to be  assessed  on the  Company  or for  which  it is
                  accountable  in respect of  income,  profits or gains  earned,
                  accrued  or  received  on or  before  such  date  and  for all
                  deferred  Taxation  calculated  in accordance  with  generally
                  accepted accounting principles.

         (B)      Since  31  January  2000  the  Company  has not  incurred  any
                  liability for Taxation  arising as a result of any transaction
                  entered  into by the Company  outside the  ordinary  course of
                  business.

6.       THE COMPANY'S BUSINESS
         ----------------------

6.1      BUSINESS SINCE 31 JANUARY 2000

         Since 31 January 2000:

         (A)      the Company has carried on its  business in the  ordinary  and
                  usual  course  so as to  maintain  it as a going  concern  and
                  without any interruption or alteration in the nature, scope or
                  manner of its business;

         (B)      there  has been no  material  deterioration  in the  financial
                  position,  turnover,  and so far as the Warrantor is aware, in
                  the  prospects of the Company when compared to the same period
                  in 1999;

         (C)      there has been no significant event or occurrence known to the
                  Warrantor and not known to Total Research which has had or may
                  following the Completion  Date have a material  adverse effect
                  on the  Company's  business  or,  so far as the  Warrantor  is
                  aware, on its value, profitability or prospects; and

         (D)      no  share  or  loan  capital  has  been issued or agreed to be
                  issued by the Company.

6.2      COMMISSION

         No one is  entitled  to receive  from the  Company  any  finder's  fee,
         brokerage, or other commission in connection with the Offer.

6.3      CONSEQUENCE OF THE OFFER

         So far as the  Warrantor is aware,  the event of the Offer  becoming or
         being declared unconditional will not:

         (A)      cause the Company to lose the benefit of any licence, consent,
                  permit,  approval or authorisation  (public or private) or any
                  right or privilege  it presently  enjoys or relieve any person
                  of any  obligation  to the  Company  or enable  any  person to
                  determine  any

<PAGE>

                  such   obligation   or any  contractual  right or benefit  now
                  enjoyed  by  the  Company  or to  exercise  any right  whether
                  under an agreement with the Company or otherwise;

         (B)      result in any  present or future  indebtedness  of the Company
                  becoming  due or capable  of being  declared  due and  payable
                  prior to its stated maturity;

         (C)      give rise to or cause  to  become  exercisable  any  right  of
                  pre-emption;

         and,  to the best of the  knowledge  and belief of the  Warrantor,  the
         Company's   relationships  with  clients,   customers,   suppliers  and
         employees will not be adversely  affected  thereby and the Warrantor is
         not  aware  that any  person  who now has  business  dealings  with the
         Company would or might cease to do so from and after the acquisition of
         the Shares by a person previously unconnected to the Company.

6.4      DISTRIBUTIONS AND PAYMENTS

         Since 31 January  2000 no  dividend or other  distribution  has been or
         will prior to the  Completion  Date be made,  paid or  declared  on the
         Shares  save  for the  interim  dividend  of 2p (net)  per  share to be
         announced in the preliminary  announcement of the Company's results for
         the year ended 31 January 2000.

7.       THE COMPANY'S ASSETS
         --------------------

7.1      ASSETS

         Except for current  assets  disposed of by the Company in the  ordinary
         course of its business and save for  retention  of title  claims,  hire
         purchase,  conditional sale or leased assets,  the Company is the owner
         legally and beneficially of and has good marketable title to all assets
         included in the  Accounts and (save as  aforesaid)  no  Encumbrance  is
         outstanding over any part of the Company's assets.

7.2      DEBTS

         Save to the extent of the  provision or reserve  therefor  contained or
         reflected in the  Accounts,  any debts owed to the Company and recorded
         in the  Company's  books and records as at 31 January 2000 are good and
         collectable in the ordinary course of business.

7.3      FIXED ASSETS

         All  fixed  assets  of  the  Company  including,   without  limitation,
         vehicles,  computer  equipment  and  other  equipment  used  in,  or in
         connection with, the business of the Company:

         (A)      are in reasonable  repair and  condition  (taking into account
                  their age and level of use), are in satisfactory working order
                  and have been  regularly and properly  serviced and maintained
                  and none is in need of renewal or replacement; and

         (B)      are properly insured for their full replacement  value against
                  such  risks  as are  normally  insured  against  by  Companies
                  carrying on a similar business.

7.4      BANK BALANCE

         On the  Completion  Date the balance then standing to the credit of the
         Company's  bank  account at Barclays  Bank plc (taking into account all
         cheques or other  instruments  drawn

<PAGE>

         against  such accounts and then  outstanding  and unpresented and after
         making  provision  for the payment of the interim  dividend and bonuses
         to executives in respect  of the financial  year ended 31 January 2000,
         to the extent not then paid)  will be not less than  (pound)625,000 and
         since 31 January 2000 and until  the  Completion  Date no payments from
         such accounts have been or will be  paid otherwise than in the ordinary
         and usual course of business and all  creditors  in such period will be
         paid in accordance  with the Company's  practice  prior  to the date of
         this Deed.

7.5      INTELLECTUAL PROPERTY RIGHTS

         (A)      No person has been  authorised  to make any use  whatsoever of
                  any   Intellectual   Property   owned   by  the   Company   in
                  circumstances  where  that  authorisation  cannot  be  revoked
                  without compensation on reasonable written notice.

         (B)      So far as the Warrantor is aware, the Company does not and has
                  not  infringed any  Intellectual  Property or any right of any
                  other person relating to Intellectual Property.

8.       PREMISES
         --------

8.1      TITLE TO PREMISES

         (A)      Except for the lease of Unit 4, off Norden  Road,  Maidenhead,
                  Berkshire (the  "Premises")  made between Seiko UK Limited and
                  Romtec plc dated 14  September  1995 the  Company has no other
                  interest or liabilities relating to land.

         (B) The Premises are held free from any Encumbrance.

8.2      MATTERS AFFECTING PREMISES

         All  necessary   permissions   and  approvals  for  the  extension  and
         alteration  of the  Premises  by the  Company  have been  obtained  and
         complied  with, and none of those  permissions,  consents and approvals
         has been given on a temporary or personal basis nor does it require the
         removal at any time of the works so authorised.

9.       THE COMPANY'S CONTRACTS
         -----------------------

9.1      RELATED PARTY CONTRACTS

         Save for his  service  agreement,  neither  the  Warrantor  nor  anyone
         connected  with  him has in the  last  two  years  been a party  to any
         contract   or   contractual   arrangement   with  the  Company  of  any
         description.

9.2      RESTRICTIONS

         No   contract,   agreement,   transaction,    obligation,   commitment,
         understanding, arrangement or liability entered into by the Company and
         now outstanding or unperformed involves any express restrictions on the
         Company's  freedom to carry on the whole or any part of its business in
         any part of the world in such manner as it thinks fit.

9.3      DEFAULTS

         So far as the  Warrantor  is aware the  Company  has not  received  any
         notice or claim that it is in material default of or under any contract
         to which it is a party or  seeking  to  repudiate,  cancel,  rescind or
         terminate  any such  contract  and so far as the  Warrantor is aware no
         other party to any such contract is in material  default of or under it
         which,  in any such  case,  would be  material  in the  context  of the
         financial  or  trading  position  of  the  Company  nor,  so far as the
         Warrantor is aware, are there any circumstances  likely to give rise to
         any such event.

9.4      OPTIONS AND GUARANTEES

         The Company is not a party to any option or pre-emption  right,  and it
         does not have any  obligation  to pay,  provide funds or take action in
         the event of default in the  payment of any  indebtedness  of any other
         person or in the performance of any obligation of any other person.

9.5      ROMTEC - GFK

         Save for the Shareholders  Agreement dated 20 November 1997 between (1)
         the Company,  (2) GFK  Marketing  Services  Limited and (3)  Romtec-GfK
         Limited,  the Company has not entered into with GfK Marketing  Services
         Limited,  Romtec-GfK Limited or any of their respective  affiliates any
         material  contract,  agreement,  arrangement,  obligation,  commitment,
         understanding  or liability  relating to or in connection with Romtec -
         GfK Limited, which remains subsisting or unperformed.

10.      ACCURACY OF MATTERS DISCLOSED
         -----------------------------

10.1     The bundle of documents in agreed form and  initialled  by or on behalf
         of the parties for  identification  (the  "Bundle")  contains  true and
         complete copies of the documents referred to in the index to the Bundle
         as items 1-6 in the form they were provided to Total Research, and such
         items 1-6 are true and accurate in all material respects.

10.2     All factual  information  concerning the insurance and employees of the
         Company  provided to Total Research and set out at items 7 and 8 of the
         Bundle is complete and correct as at the date of this Deed.

10.3     All  expressions  of opinion,  forecasts  or  expectation  disclosed or
         contained in the Fiscal Year 2001  Operating  Plan as set out at item 9
         of the Bundle  are, in the opinion of the  Warantor,  fairly  based and
         made on reasonable assumptions which are honestly held by the Warrantor

11.      OFFER DOCUMENTS
         ---------------

         To the best of the knowledge,  information and belief of the Warrantor,
         the  information  relating to the Company  and the  Subsidiary  and the
         directors  of the Company set out in the Offer  Document  and the Press
         Announcement relating to the Offer is true and accurate in all respects
         and there are no facts or  circumstances  the  omission  of which would
         render any such information misleading.

<PAGE>

                             SCHEDULE 2: WARRANTOR'S PROTECTION

1.       DEFINITIONS
         -----------

         In this schedule,  "Relevant Claim" means any claim under this Deed for
         breach of the  Warranties,  and "Total  Research's  Group"  means Total
         Research and its subsidiaries from time to time.

2.       NO LIABILITY UNLESS OFFER UNCONDITIONAL IN ALL RESPECTS
         -------------------------------------------------------

         The Warrantor  shall not be under any  liability  under or in this Deed
         unless and until the Offer becomes unconditional in all respects and in
         the event that the Offer  shall lapse this Deed shall cease to have any
         force or effect.

3.       TOTAL RESEARCH'S UNDERTAKING
         ----------------------------

         Total Research and Acquisitions  acknowledge that in entering into this
         Deed they have relied only on the  Warranties  and that (in the absence
         of fraud or dishonesty)  they will not have any right or remedy arising
         out of any representation, warranty, agreement or statement not set out
         in this Deed.

4.       EXCLUSION OF RELEVANT CLAIMS
         ----------------------------

         The Warrantor  shall have no liability in respect of any Relevant Claim
         to the extent arising from any matter, act, omission or circumstance:

4.1      fairly  disclosed in the Disclosure  Letter or in the documents annexed
         to it in accordance with Clause 2.2 of this Deed; or

4.2      which would not have occurred but for any act,  omission or transaction
         after the  Completion  Date by or with the  consent  of Total  Research
         and/or  Acquisitions  which is outside the ordinary  course of business
         which Total Research and/or  Acquisitions  knows or ought reasonably to
         know would give rise to a Relevant Claim.

5.       TOTAL RESEARCH'S AND ACQUISITIONS' RIGHTS AND MITIGATION OF LIABILITY
         ---------------------------------------------------------------------

5.1      Subject to Total Research's and  Acquisitions'  rights to claim damages
         under  the  indemnity  pursuant  to  Clause  2.4 of  this  Deed,  Total
         Research's  and  Acquisitions'  rights and  remedies  in respect of any
         Relevant  Claim  shall be limited to  damages  for breach of  contract.
         Neither Total  Research nor  Acquisitions  shall be entitled to recover
         damages in tort or misrepresentation.

5.2      Nothing  in this Deed  shall  operate  to reduce  Total  Research's  or
         Acquisitions  common law duty to  mitigate  any loss giving rise to any
         Relevant  Claim and Total  Research and  Acquisitions  shall be under a
         duty so to mitigate.

6.       FINANCIAL LIMITS
         ----------------

6.1      AGGREGATE LIMIT

         The aggregate  liability of the Warrantor under this Deed shall (in the
         absence of fraud or  dishonesty)  be limited to (pound)1.8  million and
         shall be limited to 85% of such Relevant Claim.

6.2      THRESHOLDS

         The  Warrantor  shall have no liability in respect of a Relevant  Claim
         unless:

         (A)      the liability  agreed or determined in respect of the Relevant
                  Claim   (excluding   related   interest  and  costs)   exceeds
                  (pound)1,000; and

         (B)      the  aggregate  liability  agreed  or  determined   (excluding
                  related  interest and costs) in respect of all Relevant Claims
                  qualifying under (A) exceeds  (pound)150,000 in which case the
                  Warrantor  shall be liable for the whole of the  liability and
                  not just the excess.

7.       TIME LIMITS
         -----------

         The Warrantor  shall  (subject to paragraph 10 below) have no liability
         in respect of any Relevant Claim unless Total Research or  Acquisitions
         shall have  given  notice in  writing  to the  Warrantor  of such claim
         specifying  (in  reasonable  detail) the matter which gives rise to the
         Relevant Claim, the nature of the Relevant Claim and the amount claimed
         in respect thereof not later than:

         (A)      in the case of a Relevant  Claim under or in  connection  with
                  any of the  Warranties  contained in schedule 1 (other than as
                  specified in (B) below) not later than 1 September 2001; and

         (B)      in the  case of a  Relevant  Claim  relating  to  Taxation  in
                  respect  of any  financial  year  in  relation  to  which  the
                  Company's  tax  computations  have  not been  agreed  with the
                  relevant tax authorities,  the date which is 7 years after the
                  date of this Deed.

8.       RELEVANCE OF LIMITATIONS IN CIRCUMSTANCES OF FRAUD ETC
         ------------------------------------------------------

         The  provisions  of  paragraphs 6 and 7 shall not apply in respect of a
         Relevant Claim if it is (or the delay in the discovery of which is) the
         consequence of the fraud or dishonesty of the Warrantor.

9.       ISSUE OF LEGAL PROCEEDINGS
         --------------------------

         A Relevant Claim in respect of which notice is given in accordance with
         paragraph 7 shall, if it has not previously been satisfied,  settled or
         withdrawn,  be  deemed  to  have  been  withdrawn  and  be  barred  and
         unenforceable  unless legal  proceedings have been issued and served on
         the Warrantor in respect of such Relevant  Claim within 12 months after
         the date of such  notice  or,  where the  Relevant  Claim is based on a
         contingent  liability,  within 12 months after such liability ceases to
         be contingent.

10.      CONTINGENT LIABILITIES
         ----------------------

         The Warrantor  shall have no liability in respect of any Relevant Claim
         which is based upon a  liability  which is  contingent  only unless and
         until such contingent  liability becomes an actual liability and is due
         and payable,  but the time limits in paragraph 7 shall in that event be
         extended  accordingly  to six  months  after  the  date on  which  such
         liability becomes actual.

11.      THE ACCOUNTS
         ------------

         The Warrantor  shall have no liability in respect of any Relevant Claim
         to the extent that:

         (A)      the  Accounts  make provision or reserve for the matter giving
                  rise to the Relevant Claim; or

         (B)      any amount is received by the Company  prior to  settlement or
                  determination  of a  Relevant  Claim in  relation  to which an
                  amount  relating to the subject  matter of such Relevant Claim
                  is shown as written off as irrecoverable in the Accounts; or

         (C)      a provision  or reserve in the Accounts in respect of Taxation
                  or any  other  liability  which is the  subject  matter of the
                  Relevant Claim proves to be excessive or unutilised.

12.      GENERAL EXCLUSIONS
         ------------------

         The Warrantor  shall have no liability in respect of any Relevant Claim
         to the extent arising from:

         (A)      the passing of, or change in, after the date of this Deed, any
                  law,  regulation  or  rule  of  any  government,  governmental
                  department,  agency or regulatory  body  (including  any stock
                  exchange)  or any  judgment  delivered  after the date of this
                  Deed  or  any  increase  in  the  rates  of  Taxation  or  any
                  imposition  of Taxation not in effect at the date of this Deed
                  or any withdrawal  after the date of this Deed of any practice
                  or  extra-statutory  concession  previously  published  by the
                  Inland  Revenue  or other  taxing  authority  (whether  or not
                  purporting to be retrospective in whole or in part);

         (B)      a change after the date of this Deed in the methods which have
                  been used by the Company in valuing stock in trade and work in
                  progress or any other change in accounting  policy or practice
                  or any  change to the length of any  accounting  period of the
                  Company;

         (C)      the failure or  omission  by the Company or Total  Research or
                  Acquisitions or any member of Total  Research's  Group to make
                  any  claim,  election,  surrender  or  disclaimer  or give any
                  notice or consent or do any other thing  under the  provisions
                  of any enactment or regulation  relating to Taxation after the
                  Completion Date, and the making,  giving or doing of which was
                  taken into account in computing the Taxation in the Accounts;

         (D)      any claim, election, surrender or disclaimer made or notice or
                  consent  given or any other  thing done after the date of this
                  Deed by the Company or Total Research or  Acquisitions  or any
                  other member of Total  Research's  Group or their agents under
                  the  provisions  of any  enactment or  regulation  relating to
                  Taxation; or

         (E)      the  winding-up of the Company or any  winding-up or cessation
                  after the Completion Date of any trade or business  carried on
                  by the Company.

13.      INSURANCE
         ---------

         The Warrantor  shall have no liability in respect of any Relevant Claim
         to the extent that the loss in respect of which the  Relevant  Claim is
         made is insured under a policy of insurance in favour of the Company or
         Total Research or Acquisitions or any member of Total  Research's Group
         and to the  extent  there is actual  recovery  thereunder  less (1) the
         costs of recovery  and (2) the amount of any  increase in premium  upon
         renewal of such policy resulting from the recovery under such policy.

14.      CLAIMS AGAINST THIRD PARTIES
         ----------------------------

         If the Warrantor has paid to Total Research or Acquisitions  any amount
         in respect of a Relevant  Claim and the  Company or Total  Research  or
         Acquisitions  or any  member  of Total  Research's  Group  subsequently
         receives or recovers  from a third party  (including  an insurer) a sum
         which  is  referable  to  such  Relevant   Claim,   Total  Research  or
         Acquisitions as appropriate  shall forthwith repay to the Warrantor the
         amount so received or recovered up to the amount which has been paid by
         the  Warrantor  in  respect  of such  Relevant  Claim less the costs of
         recovery.

15.      WAIVER OF SET OFF
         -----------------

         Total  Research  and   Acquisitions   waive  any  rights  of  set  off,
         withholding,   deduction  or  abatement  against  any  element  of  the
         consideration  payable or to become  payable,  whether in cash or under
         loan notes to the Warrantor pursuant to the Offer.

16.      REDUCTION IN PURCHASE PRICE
         ---------------------------

         Any amount  recovered by Total Research  and/or  Acquisitions  from the
         Warrantor  pursuant to a Relevant Claim shall be treated as a reduction
         in the purchase price received by the Warrantor under the Offer.

17.      CONDUCT OF CLAIMS
         -----------------

17.1     If the Company  Total  Research,  Acquisitions,  or any member of Total
         Research's  Group becomes  aware of a matter which could  reasonably be
         expected  to  give  rise  to  a  Relevant  Claim,   Total  Research  or
         Acquisitions  as appropriate  shall give notice in writing of that fact
         as soon as reasonably practicable to the Warrantor.

17.2     If the Company or Total Research or Acquisitions or any member of Total
         Research's  Group  receives  notice of a claim by a third party ("Third
         Party Claim")  against the Company or Total Research or Acquisitions or
         any member of Total  Research's  Group which might  constitute  or give
         rise to a liability  pursuant  to this Deed,  the  Warrantor  and Total
         Research  shall  consult with each other  regarding  the conduct of the
         Third Party Claim and Total  Research  shall and shall procure that the
         relevant  member of Total  Research's  Group shall take such lawful and
         reasonable  action as the Warrantor shall reasonably  require to avoid,
         dispute,  resist,  appeal,  compromise,  settle,  contest  or  raise  a
         counter-claim in relation to the Third Party Claim.

17.3     The Warrantor shall indemnify Total Research and  Acquisitions  against
         and in respect of all reasonable costs, charges, expenses,  liabilities
         and damages for which Total  Research or  Acquisitions  or the relevant
         member of Total  Research's  Group  becomes  liable in  respect  of any
         action   which  is  required  to  be  taken  by  Total   Research,   or
         Acquisitions,  or any member of Total  Research's Group under paragraph
         17.2.

17.4     Total Research and  Acquisitions  shall keep the Warrantor  informed of
         the progress and the defence of any Third Party Claim and shall consult
         with the Warrantor as appropriate.

17.5     Where Total Research  and/or  Acquisitions  has made a Relevant  Claim,
         Total  Research  and/or  Acquisitions  as  appropriate  shall  use  all
         reasonable  endeavours  (subject to the  Warrantor  indemnifying  Total
         Research  and/or  Acquisitions  for the  reasonable  costs and expenses
         incurred  by it in so doing) to recover  any amounts due from any third
         party (including an insurer).

17.5     In  relation  to any  Relevant  Claim,  and  without  prejudice  to the
         validity of the Relevant  Claim,  Total  Research  and/or  Acquisitions
         shall  allow  and  shall  procure  that any  relevant  member  of Total
         Research's  Group  shall  allow  the  Warrantor  and  his  professional
         advisers to investigate the matter or circumstance alleged to give rise
         to the Claim and Total  Research  and/or  Acquisitions  shall  give and
         shall procure that any relevant member of Total  Research's Group shall
         give such assistance as the Warrantor or its professional  advisers may
         reasonably  request,  including  upon  reasonable  notice and in normal
         business  hours  access  to  and  copies  of  any  documents  or  other
         information in possession of Total Research and/or  Acquisitions or any
         relevant  member of Total  Research's  Group  (subject  to giving  such
         confidentiality undertakings as Total Research may reasonably require).

18.      NO DUPLICATION OF RECOVERY
         --------------------------

         Neither Total  Research nor  Acquisitions  shall be entitled under this
         Deed  to  recover  damages  or  otherwise   obtain   reimbursement   or
         restitution more than once in respect of the same loss.

<PAGE>

Executed as a DEED by Russell V. Nathan)          /s/Russell V. Nathan

in the presence of:                               /s/Barry Maytum

Name of Witness:                                  Barry Maytum

Address:                                          34 Bridge Street
                                                  Reading

Occupation:                                       Solicitor

Executed as a DEED by                             )/s/Albert Angrisani
duly authorised for and on                        )
behalf of Total Research Acquisitions Limited     )

in the presence of:                               /s/Eric Zissman

Name of Witness:                                  Eric Zissman

Address:                                          5 Independence Way
                                                  Princeton, NJ 08540

Occupation:                                       Corporate Development Officer

Executed as a DEED by                             )/s/Albert Angrisani
duly authorised for and on                        )
behalf of Total Research Corporation              )

in the presence of:                               /s/Eric Zissman

Name of Witness:                                  Eric Zissman

Address:                                          5 Independence Way
                                                  Princeton, NJ 08540

Occupation:                                       Corporate Development Officer

<PAGE>
                               INDEX OF DOCUMENTS
                               ------------------

The following  documents are the documents  contained in the bundle described in
Warranty 10 of the Deed of Warranties.

1.       Romtec Memorandum of Association and New Articles of Association
2.       Service agreements of directors
3.       Romtec Executive Share Option Scheme
4.       Romtec Staff handbook
5.       Shareholders Agreement Articles of Association of Romtec-Gfk Limited
6.       Board minutes of Romtec
7.       Details of insurance cover and insurance policy renewal details
8.       Listing  of  employees and their respective compensation schemes (Excel
         spreadsheet)
9.       Fiscal Year 2001 Operating Plan Excel sheets showing revenue and profit
         expectations by business group

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