Document:

<PAGE>
     Certain information omitted and filed separately with the Commission
               pursuant to confidential treatment request under
                          Rule 406 of the Commission.

November 7, 2001

Mr. Jacques Tortoroli
82 Greenway Terrace
Forest Hills, New York 11375

Dear Jacques:

Scient, Inc. is pleased to offer you employment as Chief Financial Officer. This
position reports to the office of the President and CEO in New York City. We
anticipate your start date to be December 15, 2001. The purpose of this letter
is to describe the general terms and conditions of your employment with Scient
("Company").

JOB RESPONSIBILITIES

Your responsibilities will include all financial matters for the corporation.
The position will also include other related duties and responsibilities that
may be assigned to you by me.

COMPENSATION

Your annualized salary will be $350,000.

You are eligible to participate in the Senior Management Incentive Plan. Under
this Plan, you qualify for 60% of your base compensation (earnings). It is paid
at the end of our fiscal year based on your performance and the company's
performance. It is based on performance and revenue objectives to be determined.
The Incentive Plan award opportunities and performance metrics may be adjusted
as necessary to meet business objectives and are subject to change at
management's discretion.

We will recommend to the Board of Directors that you be awarded 1.2 million
options to purchase the Common Stock of Scient, Inc. The Exercise Price of these
options will be set when the Board, or its Committee, approves the options; this
price is the stock price on the day the options are approved. Under this special
vesting schedule, your options will vest as follows: 25% in six (6) months from
the date of grant and continuing to vest monthly thereafter for the next 24
months. The Grant Date is the day the Board or Compensation Committee of the
Board approves your options.

BENEFITS

In addition to your cash compensation, you will be eligible for benefits
commensurate with the benefits offered to all other Scient employees of a
similar status, subject to any applicable restrictions or waiting periods.
Currently, benefits are effective on the first of the month after thirty (30)
days Company service. Benefits currently include:

-        Health, Dental and Vision Insurance upon payment of your contribution
-        Medical and Dependent Spending Accounts (Section 125 Plan)
-        401(k) Plan
-        Life, AD&D, Short and Long Term Disability Insurance

More details are available in the Summary Plan descriptions and the Guidelines
available to all colleagues on the internal intranet (called the Scient Zone).
If you have specific benefits questions, please contact me and I will facilitate
getting you the needed information.
<PAGE>

EMPLOYMENT AT WILL

This letter contains the entire understanding between you and Scient, Inc., and
supercedes any prior representations, in any form, that may have been made
regarding your prospective employment at the Company. Nothing contained in this
letter should be construed as a contract for employment, either express or
implied, with Scient, Inc. Should you accept this offer of employment from
Scient, you understand that your employment will be on an at-will basis and is
not for any fixed period of time. This means that either you or the Company can
terminate the employment relationship at any time, with or without cause. Your
at-will status can only be modified by an agreement signed by the President of
Scient, Inc.

TERMINATION OR RESIGNATION

BY THE COMPANY

In the event that Executive is terminated for reasons other than Cause,
Executive will be entitled to twelve (12) months of Executive's then-current
salary in the form of a severance payment payable on a bi-monthly basis together
with continuation of the health and welfare benefits provided to the Executive
during the Executive's employment. The foregoing severance shall be reduced or
offset by the amount of any subsequent salary from a new employer. In addition,
in the event the Executive is terminated for reasons other than Cause, vested
options resulting from one-year's forward vesting of the Executive's options,
will immediately vest. "Cause" shall mean: (A) conviction of a felony arising
from any act of fraud, misappropriation, embezzlement or material misconduct on
the Executive's part, (B) the Executive's (x) failure substantially to follow
written directives of the Company's Board of Directors, not inconsistent with
the terms of this Agreement contemplated herein, and (y) failure to correct same
within thirty (30) days after notice from a lawfully designated representative
of the Company (or lesser period, if appropriate under the circumstances as
described in the notice), or (C) the Executive's serious and willful breach of
any material provision of this Agreement or breach of any material provision of
the policies and procedures of the Company that affect generally all members of
the Company's senior management and the Executive's failure to cure same within
thirty (30) days after notice (to the extent such breach is subject to cure).

GOOD REASON

Executive may terminate employment for Good Reason or without Good Reason. "Good
Reason" means any failure by the Company to comply with any provision of this
Agreement, other than any such failure that is remedied by either of them within
thirty (30) days after receipt of notice thereof from Executive. Good Reason
includes, but is not limited to, the Company's requiring Executive to relocate
outside of a 50-mile radius of the Executive's current residence (unless agreed
to by the Executive), and any material change by the Company of the Executive's
duties, responsibilities, titles or job description in violation of this
Agreement. A termination of employment by the Executive for Good Reason shall be
effectuated by giving the Company's Board of Directors written notice ("Notice
of Termination for Good Reason") of the termination, setting forth in reasonable
detail the specific conduct of the Company that constitutes Good Reason and the
specific provision(s) of this Agreement on which the Executive relies. A
termination of employment by the Executive for Good Reason shall be effective
thirty days following the date when the Notice of Termination for Good Reason is
given; provided, that such a termination of employment shall not become
effective if the Company shall have substantially corrected the circumstance
giving rise to the Notice of Termination for Good Reason within such 30-day
period.
<PAGE>

In the event that the Executive terminates his employment for Good Reason, the
Executive will be entitled to twelve (12) months of the Executive's then-current
salary in the form of a severance payment payable on a bi-monthly basis together
with continuation of the health benefits provided to the Executive during the
Executive's employment. The foregoing severance shall be reduced or offset by
the amount of any subsequent salary from a new employer. In addition, in the
event the Executive terminates his employment for Good Reason, the greater of
(i) one-half of the total of the Executive's unvested options, or (ii) vested
options resulting from one-year's forward vesting of the Executive's unvested
options, will immediately vest. Any unvested options will be cancelled.

DEATH OR DISABILITY

The Executive's employment shall terminate automatically upon the Executive's
death during the Employment Period. The Company shall be entitled to terminate
the Executive's employment because of the Executive's Disability during the
Employment Period. "Disability" shall be defined exactly as it is defined in the
then current long-term disability insurance policy which covers the Executive.

DATE OF TERMINATION

The "Termination Date" means the date of the Executive's death, the date on
which the termination of the Executive's employment under this Agreement by the
Company for Cause or Disability, or by the Executive for Good Reason is
effective, the date on which the Company gives the Executive notice of a
termination of employment without Cause, or the date on which the Executive
gives the Company notice of a termination of employment without Good Reason, as
the case may be.

CHANGE IN CONTROL

DEFINITION

The term "Change in Control" means after the Effective Date (1) an event that
would be required to be reported by the Company in response to Item 1 of the
current report on Form 8-K, as in effect on the date hereof, pursuant to Section
13 or 15(d) of the Securities Exchange Act of 1934 (the "Exchange Act"); (2) any
person (as the term is used in Sections 13(d) and 14(d) of the Exchange Act) is
or becomes the beneficial owner (as defined in Rule 13d-3 under the Exchange
Act) directly or indirectly of securities of the surviving corporation
representing 40% or more of the combined voting power of the Company's
outstanding securities; (3) individuals who are members of the Company's Board
of Directors as of the date hereof (the "Incumbent Board") cease for any reason
to constitute at least a majority thereof; or (4) consummation of a plan of
reorganization, merger, consolidation, sale of all or substantially all of the
assets of the Company or a similar transaction in which the Company is not the
resulting entity, or a transaction at the completion of which the former
stockholders of the acquired corporation become the holders of more than 40% of
the outstanding common stock of the Company; provided that the term "Change in
Control" shall not include an acquisition of securities by an employee benefit
plan of the Company or a subsidiary. For the avoidance of doubt, the term
"Change in Control" shall not include the transactions contemplated by the
Merger Agreement.
<PAGE>

EFFECT

Upon a Change in Control, Executive shall be eligible to receive any rights,
benefits and entitlements made generally available to members of senior
management of the Company as a result of a Change in Control. However, if within
one year after the Change in Control: (i) the Executive's employment is
terminated without Cause; or (ii) the Executive suffers a reduction in title or
a reduction of duties or reporting group or a material diminution of Executive's
compensation and/or compensation potential and subsequently the Executive
resigns with or without Good Reason, the Executive shall be paid an amount equal
to not less than one time his base salary, the Executive's annual target but
unpaid prorata bonus amount within 30 days after the effective date of the
Change of Control, in addition, the Executive's health benefits(medical, dental
and vision) provided to the Executive during the Executive's employment shall
continue for 12 months after the Termination Date and all of the Executive's
unvested stock options shall be accelerated and vested.

CONTINUATION

To the extent Executive is not terminated under a Change in Control, this
Agreement shall continue in full force and effect and Executive shall continue
to perform his obligations hereunder through the end of the term of this
Agreement.

STOCK OPTIONS/COMPENSATION

After a Change in Control, the greater of (i) one-half of the total of the
Executive's unvested options, or (ii) vested options resulting from one-year's
forward vesting of the Executive's unvested options, will immediately vest.

NO-OTHER REPRESENTATIONS

No representations have been made to the Executive other than those set forth in
this Agreement.

WAIVER OF BREACH

Agreement by the other party does not waive any subsequent breach by such party,
nor does the failure by either party to take action against the other party for
similar prior breaches operate as a waiver by such party of any future such
breach.

SEVERABILITY

If any provision in this Agreement is determined to be in violation of any law,
rule or regulation or otherwise unenforceable, such determination shall not
affect the validity of any other provision of this Agreement, but such other
provisions shall remain in full force and effect. Each provision, paragraph and
subparagraph of this Agreement is severable from every other provision,
paragraph and subparagraph and constitutes a separate and distinct covenant.
<PAGE>

EMPLOYMENT ELIGIBILITY

This offer of employment is contingent upon submission of satisfactory proof of
your identity and your legal authorization to work in the United States. If you
fail to submit this proof within three (3) days of your start date, federal law
prohibits us from hiring you. In addition, this offer is contingent upon
satisfactory completion of a background investigation relating to your ability
to perform satisfactorily the duties of your position. You agree to release the
Company, its employees, agents, and any individuals who may provide the Company
with information regarding your background, from any liability in connection
with providing such information.

PARTY ARBITRATION AND GOVERNING LAW

The Company and you expressly agree that any and all controversies or claims
arising out of or relating to your employment at the Company, with the exception
of enforcement of the Non-Disclosure Agreement, shall be settled by binding
arbitration in New York, New York in accordance with the Employment Arbitration
Rules of the American Arbitration Association ("AAA") after final decision
before the Review Board of Scient and/or Human resources. The arbitrator shall
be selected by agreement of the Parties or, if they cannot agree on an
arbitrator within thirty (30) days after written notice of a Party's desire to
have a matter settled by arbitration, then the arbitrator shall be selected by
the AAA. The determination reached in such arbitration shall be final and
binding on all Parties hereto without any right of appeal except as provided by
the Federal Arbitration Act. Any court of competent jurisdiction may enforce any
determination or award of the arbitrator. The parties also agree that, in the
event that the need for emergency measures of protection (including preliminary
injunction or temporary restraint proceedings) arises, the AAA Optional Rules
for Emergency Measures of Protection shall apply to the proceedings. The parties
hereby expressly waive any right to trial by jury or class treatment of any
claim, demand, action or cause of action arising out of or relating to your
employment with the company, with the exception of enforcement of the
non-disclosure agreement, provided that neither party is precluded from seeking
to compel arbitration in a state or federal court of competent jurisdiction.

CONDITIONS OF EMPLOYMENT

The conditions of this offer also require that you sign a Non-Disclosure
Agreement. This Agreement contains non-disclosure, non-solicitation and
non-compete information. We require that this Agreement be signed on or before
your first day of employment.

This offer remains open until September 29, 2001. If the terms of this offer are
acceptable, please indicate your agreement by signing, dating and returning this
letter to Bob Beck at our office at 79 5th Avenue in New York.
<PAGE>

Jacques, Scient is a Company that grows and is enriched by the contributions of
its employees; and we are looking forward to the prospect of your joining the
Scient Senior Management team. We believe that your employment with Scient will
be both personally and professionally rewarding.

Sincerely,

/s/ Christopher M. Formant

Christopher Formant
President & CEO

ACCEPTED:

           /s/ Jacques Tortoroli                         December 2001
-------------------------------------------     -------------------------------
                 SIGNATURE                                DATE SIGNED

               December 2001                                  **
-------------------------------------------     -------------------------------
                START DATE                           SOCIAL SECURITY NUMBER<PAGE>

                                                        EXHIBIT 10.3
December 30, 2001

Stephen Mucchetti
48 East Ridge Road
Ridgefield, CT 06877

Dear Steve,

         This letter agreement ("Agreement") represents the terms and conditions
agreed upon by you and Scient Corporation ("the Company") regarding your
separation from employment with the Company. This Agreement shall become
effective on the eighth day after your execution of the Agreement so long as you
do not revoke the Agreement as provided for herein within seven days of your
execution of this Agreement ("Effective Date").

         1.       We agree that your employment with the Company will end on
December 31, 2001 ("Separation Date"). You will work through the Separation Date
and the Company will pay you your salary and provide you with all benefits
through the Separation Date. Your employment will end on your Separation Date
and you will have no right to employment with the Company after that date and
the Company will have no obligation to employ you after that date. The Company
agrees that in response to inquiries that you authorize, the inquiring party
will be directed to the Company's Chief Executive Officer or his successor, who
will verify your position and dates of employment. The Company also agrees that
in response to any inquiries that you authorize, the inquiring party will be
directed to such Company officer or Board member as you designate for an oral
reference. All other inquiries will be handled by the Legal or People
Departments, as appropriate.

         2.       On your Separation Date, you will be paid for all salary
earned up through that Date. You will receive this payment regardless of whether
you sign this Agreement. All benefits will end on the Separation Date, except as
provided elsewhere in this Agreement, and except that your medical, dental and
vision benefits will continue through the end of the "Payment Period" described
below, provided that you continue to pay your share of the premium. Your
Retention Bonus will be paid in accordance with our letter to you on the subject
of Retention Payment, dated December 31, 2001. You will continue to be eligible
for any other bonuses directed by the Company as a result of your performance as
an employee of the Company in 2001, if and when paid to other executives in your
compensation group.

<PAGE>

         3.       As provided in your offer letter dated September 14, 1998
(Exhibit 1 to this Agreement), upon your separation from employment, the Company
will provide you with twelve (12) months of your base salary. As we agreed,
payout will be in the form of twenty-four (24) consecutive semi-monthly payments
(the "Payment Period"), paid out in accordance with the Company's pay period
schedule, as a severance payment provided that (a) you sign this Agreement and
(b) you do not materially breach any obligations under the Confidential
Information and Inventions Assignment Agreement signed by you, particularly with
respect to your obligations under paragraph 12 of this Agreement, following
written notice to you by the Company of such breach and a reasonable opportunity
to cure any breach. In the event of an alleged material breach, Company shall
remit the severance payments to an escrow pending resolution of the alleged
material breach. These payments will cease ("Final Payment Date") when you have
either reached the 24 payments or caused the payments to cease following and
pursuant to a duly authorized determination in arbitration that you have
materially breached your obligations set forth in paragraphs 3 and 12 of this
Agreement.

         4.       As provided in your offer letter dated September 14, 1998, and
pursuant to the duly authorized action of the Company's Board of Directors
effective January 7, 2002, any outstanding stock options, which would have
vested within one year of your Separation Date, will vest immediately upon your
execution of this Agreement and become exercisable according to the 2001 Scient
Equity Incentive Plan dated November 8, 2001, and according to the November
8,2001 stock option grants and the agreement dated November 8, 2001 evidencing
such grants, which are attached hereto and incorporated into the Agreement as
Exhibits 2 (a), (b), and (c). In consideration of your availability to consult
with the Company as set forth in Agreement paragraph 5, these options, which are
also evidenced by the grant made to you on November 8, 2001, will remain vested,
valid, and fully exercisable through the Payment Period, or for as long as you
continue your service as a member of the Scient Board of Directors, whichever is
later but in no case longer than the life of the option of ten years. Further,
you will then have an additional ninety (90) days from the later of the Final
Payment Date, or the date when you voluntarily resign from the Scient Board of
Directors, to exercise your stock options for any and all of these vested shares
(the "Exercise Date"). If not exercised by the Exercise Date, these options will
expire and not be exercisable for any shares.

<PAGE>

         5.       You will make yourself available for reasonable amounts of
time to assist the Company in making the transition through April 30, 2002 (the
"Transition Period"). The Company will reimburse any reasonable out of pocket
expenses you incur and will make available to you appropriate office,
secretarial, library, technical and electronic support services (e.g.,
telephone, voice mail, e-mail, and facsimile) during the Transition Period. It
is understood that additional consulting services may be provided by you to the
Company at the request of the Company CEO, on terms that are mutually agreeable.

         6.       After your Final Payment Date, to the extent that you elect to
continue your medical coverage under COBRA, you may do so at your own expense
subject to the terms and conditions of COBRA.

         7.       If you have participated in the Company's employee stock
purchase plan, that participation will end on your Separation Date and all
contributions, if any, that you have made to the Plan that has not been applied
to stock purchases, will be refunded to you.

         8.       (A) You hereby expressly waive, release, and forever discharge
the Company and its subsidiaries, parents, related entities, officers,
directors, successors and assigns (collectively referred to as "Releases"), from
any and all claims, demands, and causes of action which you have or claim to
have, whether known or unknown, of whatever nature, which exist or may exist on
your behalf from the beginning of time up to and including the date of this
Agreement (but shall not include any claims for unemployment insurance, workers'
compensation, or any claims for the compensation, severance pay, benefits, stock
options, stock grants, and the other amenities and opportunities that are
provided to you under this Agreement.) As used in this paragraph, the release of
"claims," "demands," and "causes of action" as set forth in this paragraph
excludes the exceptions that are previously set forth in this paragraph and
elsewhere in this Agreement, and otherwise include, but are not limited to,
claims based on contract, whether oral, express or implied, fraud, stock fraud,
defamation, wrongful termination, estoppel, equity, tort, retaliation,
intellectual property, personal injury, spoliation of evidence, emotional
distress, public policy, wage and hour law, statute or common law, claims for
severance pay, claims related to stock options (other than those provided and/or
reaffirmed in this Agreement), claims for attorneys' fees, vacation pay, debts,
accounts, compensatory damages, punitive or exemplary damages, liquidated
damages, and any and all claims arising under any federal, state, or local
statute, law, or ordinance prohibiting discrimination on account of race, color,
sex, age, religion, sexual orientation, disability or national origin, including
but not limited to, Title VII of the Civil Rights Act of 1964 as amended, the
Americans with Disabilities Act, the Age

<PAGE>

Discrimination in Employment Act, and the Family and Medical Leave Act, and any
other local, state, and/or federal law governing employment. Note: This Release
shall not waive or release any claims by you for the insurance coverage(s) and
indemnification that the Company has provided to you or to similarly situated
officers under its bylaws and under any liability insurance policies that the
Company has provided, provides, and shall continue to provide to you and/or
other similarly situated officers and directors, all of which coverages are to
be provided at the Company's cost. The Company further agrees that it will
continue to indemnify you and to provide liability insurance coverage at its own
cost for you in connection with your service as Vice Chair of the Company's
Board of Directors and for your service to the Company pursuant to Agreement
paragraph 5.

                  (B) Except for fraudulent or criminal acts or omissions
committed by you during your employment with the Company, the Company and
Releasees hereby further release you, your heirs, administrators,
representatives, and executors from any and all claims, demands, rights, causes
of action, lawsuits, liabilities, damages, losses, and expenses of any nature
that the Company had, may have had, or now has against you, your heirs,
administrators, representatives, and executors in connection with your
employment with the Company or your service as an officer and Board member of
the Company, or for or by reason of any other matter or thing whatsoever, of
whatever character, in law or in equity, known or unknown, suspected or
unsuspected, from the beginning of the World to the date this Agreement is
executed. Note: The Company and Releasees are unaware of any such improper
conduct on your part. You shall be entitled to recover your reasonable
attorneys' fees and costs incurred in defending yourself in an action for fraud
or criminal behavior in the event, (1) you establish that you did not engage in
such improper conduct; (2) the Company made the allegation that you engaged in
fraudulent or criminal conduct (either commission or omission) during your
employment with a malicious disregard of the facts known at the time of the
allegation.

         9.       You understand and agree that you:

                  A.       Have had a full forty-five (45) days within which to
                           consider this Agreement before executing it;

                  B.       Have carefully read and fully understand all of the
                           provisions of this Agreement;

                  C.       Are, through this Agreement, releasing the Company
                           from any and all claims that you may have against the
                           Company except as otherwise provided in this
                           Agreement;

<PAGE>

                  D.       Are knowingly and voluntarily agreeing to all of the
                           terms set forth in this Agreement;

                  E.       Were advised and hereby are advised in writing to
                           consider the terms of this Agreement and consult with
                           an attorney of your choice prior to executing this
                           Agreement;

                  F.       Have a full seven (7) days following the execution of
                           this Agreement to revoke this Agreement and have been
                           and hereby are advised in writing that this Agreement
                           shall not become effective or enforceable until the
                           revocation period has expired. Said revocation shall
                           be in writing and shall be sent by certified mail,
                           return receipt requested, to the General Manager,
                           Global People, Scient Corporation, 79 5th Avenue, 5th
                           Floor, New York, NY, 10016.

                  G.       Understand that any rights or claims under the Age
                           Discrimination in Employment Act of 1967 (29
                           U.S.C.ss. 621 et seq.) that may arise after the date
                           this Agreement is executed are not waived; and

                  H.       Are, by reason of this Agreement and the release of
                           claims herein, receiving from the Company
                           consideration in addition to anything of value to
                           which you were already entitled.

         10.      You understand and agree that, in compliance with any judicial
decision, statute or ordinance which requires release of unknown claims or
benefits, that this Agreement includes a release of unknown claims, and you
expressly waive and relinquish any and all claims, rights, or benefits that you
may have which are unknown at the time of the execution of this Agreement,
except as otherwise provided in this Agreement.

         11.      You agree to return to the Company all Company property and
documents in your possession on or before the last day of the Transition Period,
or any subsequent period that is mutually agreed upon by the Company and you.
While serving as a member of the Scient Board of Directors you will be expected
to have and use as an active Board member information (including confidential
information, etc.) shared with other Board members. The only exceptions to your
property return obligations are that you will be allowed to keep your personal
files and that you will also be allowed to keep your IBM Think Pad after the
Scient IT department has made the necessary changes to it consistent with the
transition support outlined in Paragraph 5 above. Once

<PAGE>

the Transition Period is over, you will be fully responsible for the service and
maintenance of your Think Pad. You also understand and agree that you may not
utilize any proprietary information, confidential information and/or trade
secrets of the Company for any purpose at any time in the future other than in
connection with your duties for and service to the Company, and you will make
all reasonable efforts to comply with any and all other obligations you may have
regarding the Company's proprietary, confidential, and/or trade secret
information. Specifically, you agree that you will continue to be bound to the
terms of the Confidential Information and Invention Assignment Agreement. The
Company acknowledges your legitimate need to seek other employment and business
opportunities from time to time and nothing in this paragraph is to be construed
as preventing you from doing so or from practicing any profession as you may
elect, from independently developing or acquiring any business or business
opportunity, or from disclosing your accomplishments as the Company's COO. In so
doing, you will continue to be bound by the Confidential Information and
Invention Assignment Agreement, Exhibit 3.

         12.      You also acknowledge that in light of your key position in the
Company you have been provided with highly sensitive and confidential
information ("Highly Confidential Information"). Such information does not, for
example, include information that was or is publicly known, becomes publicly
known through no fault of your own, is developed independently by you or others,
is rightfully obtained by you from third parties apparently authorized to make
such disclosure, or is no longer proprietary or confidential. You understand and
agree that under the terms of the Confidential Information and Invention
Assignment Agreement you are prohibited from disclosing to any unauthorized
third party the Highly Confidential Information or any other confidential or
proprietary information provided or made available to you while working at
Scient and you agree that you will not disclose, discuss or refer to this Highly
Confidential Information or any other confidential or proprietary information
provided to or made available to you while working at Scient with any
unauthorized third party (including employees of Scient who are not aware of
such information), except as set forth in paragraph 11, and in this paragraph.
You also understand that in addition to suspension of your severance payments
pending arbitration pursuant to the procedures set forth in paragraphs 3 and 13
of this Agreement, Scient is entitled to pursue all available legal remedies
under paragraph 18 of this Agreement in the event that this paragraph is
breached.

         13.      In the event of any claimed breach of this Agreement, the
non-breaching Party shall provide the other Party with written notice of such
alleged breach and a reasonable opportunity to cure any such breach within 5
(five) days, unless the parties agree on a longer duration to cure the breach.
Each Party to this Agreement shall, in accordance with the procedures set forth
in paragraph 18, be liable to the other for

<PAGE>

proved loss, costs, or damage that they incur as the result of either party's
proven material breach of this Agreement, following written notice and
reasonable opportunity to cure any such breach. If the parties cannot resolve
the issue, both will agree to submit the issue for resolution by way of a duly
authorized arbitration determination in keeping with Agreement paragraphs 18 and
13, and the Confidential Information and Invention Assignment Agreement signed
on October 13, 1998 (Exhibit 3). It is also agreed that nothing contained in
this Agreement shall constitute or be treated as an admission of any wrongdoing
or liability on your part or on the part of the Company.

         14.      You and the Company understand and agree that this Agreement
is confidential. It is therefore agreed that you will not reveal, discuss,
publish or in any way communicate any of the terms, amount or fact of this
Agreement to any person or entity except for your spouse, accountant, financial
advisor, or attorney. Such individuals must also agree to this confidentiality
clause. The Company will also maintain the same confidentiality and will only
disclose the Agreement to those officers, Scient Board members, and plan
administration staff that have a demonstrable "need to know" and who agree to
this confidentiality clause. The exception to this provision is when statute,
subpoena, public disclosure laws and rules, or court order requires disclosure
of some or all of this Agreement. Any press releases, announcements, or public
disclosures regarding your service, employment, or your separation will only be
by mutual consent. Approval will not be unduly withheld.

         15.      This Agreement, and the Confidential Information and Invention
Assignment Agreement and any stock option or stock purchase agreements that you
executed with the Company constitute an integrated, written contract, expressing
the entire agreement between the Parties with respect to the subject matter
hereof. Both parties agree that they are not relying on any promises or
representations that do not appear herein. The parties also agree that this
Agreement can be amended or modified only by a written agreement signed by all
of the Parties hereto. You also agree that this Agreement shall supersede and
render null and void any and all prior agreements, implied, oral, or written,
between you and the Company, except for those agreements and understandings that
are referenced, incorporated, or mentioned in this Agreement, including, for
example, the stock option covenants provided by the Company in paragraph 4
above, and the severance pay provided by your initial offer letter dated
September 14, 1998, Exhibit 1.

         16.      If any provision in this Agreement is held to be invalid, the
remainder of this Agreement shall not be affected by such a determination.

         17.      This Agreement shall be interpreted, enforced and governed by
and under the laws of the State of New York without regard to its conflict of
law rules.

<PAGE>

         18.      Both Parties (the Company and its Releasees and you) agree not
to disparage the other's capabilities, performance, or work habits, as
appropriate, publicly or privately, in a manner that a reasonable person would
perceive to be "bad mouthing" the other.

         19.      Any controversy involving the construction or application of
any terms, covenants or conditions of this Agreement, or any claims arising out
of or relating to this Agreement or the breach thereof shall first try to be
resolved following the procedure set forth in Agreement paragraph 13 in the
event of an alleged breach, and following written notice of the controversy and
a reasonable opportunity to resolve the controversy in all instances. If
resolution is not achieved in a reasonable time frame, it will be submitted to
and settled by final and binding arbitration in New York in accordance with the
rules of the American Arbitration Association under its New York Employment
Dispute Resolution Rules then in effect or by rules mutually agreed upon in
writing by the Parties. The Parties further understand and agree that the
arbitration shall be instead of any civil litigation and that the arbitrator's
decision shall be final and binding to the fullest extent permitted by law and
enforceable by any court having jurisdiction thereof. In the event of a dispute
that arises under or concerns any provision of this Agreement, each Party will
bear its own attorney's fees and costs.

Both parties agree to be bound by this Agreement as set forth herein, and please
indicate your acceptance of the terms of this Agreement by signing below.

Sincerely,

/s/ Christopher M. Formant
Christopher Formant
President and CEO
Scient, Inc

         I UNDERSTAND AND AGREE THAT I MAY BE WAIVING SIGNIFICANT LEGAL RIGHTS
BY SIGNING THIS AGREEMENT, AND I REPRESENT THAT I HAVE ENTERED INTO THIS
AGREEMENT KNOWINGLY AND VOLUNTARILY, WITH A FULL UNDERSTANDING OF AND IN
AGREEMENT WITH ALL OF ITS TERMS, AND THAT MY ACCEPTANCE IS BASED ON THE COMPANY
PERFORMING ITS OBLIGATIONS HEREUNDER.

Signed:   /s/  Stephen Mucchetti                      Date:  12/30/01
       --------------------------------------              --------------
               Stephen Mucchetti

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