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Exhibit 10(f)

KEYSTAFF DEFERRAL PLAN
SCIENCE APPLICATIONS
INTERNATIONAL CORPORATION

(Effective January 1, 1997)

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KEYSTAFF DEFERRAL PLAN
OF
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION

1.Purpose

1.1The purpose of this Plan is to provide a means to enhance the Company's
capacity to attract and retain outstanding directors and executives in key
positions by assisting them in meeting their future financial security
objectives.

2.Definitions

2.1Whenever the following terms are used in this document and the attached Plan
Agreement, they shall have the meaning specified below.

2.2"Deferral Account" shall mean a bookkeeping account established by the
Company for each Participant, in which shall be recorded the amounts deferred in
accordance with this Plan and the attached Agreement. The Company shall credit
to each Participant's Deferral Account an amount equal to the compensation which
otherwise would have been paid had the Participant not elected to defer
compensation. Such credits shall be made at the time compensation would have
been paid to the Participant. The Deferral Account shall also receive quarterly
earnings credits in accordance with provisions of Section 5.

Separate Deferral Accounts shall be established to record amounts deferred (and
earnings credits thereon) with respect to Plan Years beginning before and after
December 31, 1990, to be referred to herein as Pre-1991 Deferral Accounts and
Post-1990 Deferral Accounts, respectively. Except as otherwise stated herein,
references to Deferral Account(s) shall include both the Pre-1991 and Post-1990
Deferral Account(s).

2.3"Anniversary Date" shall be the last day of a Plan Year.

2.4"Beneficiary" shall mean the person or persons, or the estate of a
Participant, entitled to receive any benefits under this Plan upon the death of
a Participant.

2.5"Ceiling Excess Earnings" shall mean, for each Pre-1991 Deferral Account, the
difference between the Participant's Pre-1991 Deferral Account if interest had
been credited at a rate of Moody's plus 5% in each Plan Year and the
Participant's actual current Pre-1991 Deferral Account.

A separate calculation of Ceiling Excess Earnings shall be made with respect to
post-1990 Deferral Account(s) using a rate of Moody's plus 3%.

2.6"Commitment Period" shall mean that period of time beginning with the
subsequent Plan Year and extending for a number of Plan Years as determined from
time to time by the Committee.

2.7"Covered Compensation" shall mean a Director's compensation, as a Director of
the Company, excluding expenses reimbursed, or an Executive's merit bonus in
each Plan Year. The Committee, in its sole discretion, shall determine what
constitutes a merit bonus.

2.8"Committee" shall mean the administrative Committee appointed to manage and
administer the Plan in accordance with the provisions of this Plan.

2.9"Company" shall mean SCIENCE APPLICATIONS INTERNATIONAL CORPORATION, its
subsidiaries, or any successor.

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2.10"Director" shall mean any person not in regular full-time employment of the
Company serving on the Board of Directors of Science Applications International
Corporation or any subsidiary or affiliate of Science Applications International
Corporation.

2.11"Early Retirement Date" shall mean the date that the Participant attains his
or her fifty-fifth (55th) birthday.

2.12"Effective Date" shall be January 1, 1986.

2.13"Employer" shall mean the Company and any subsidiary having one or more
employees who are eligible to participate in the Plan and have been selected by
the Committee to participate. Where the context dictates, the term "Employer" as
used herein refers to the particular Employer which has entered into a Plan
Agreement with a specific Participant.

2.14"Executive" shall mean any person in the employment of the Company who is
determined by the Committee to be serving in an executive capacity, excluding
those persons meeting the definition set forth in Section 2.10.

2.15"Master Plan Document" is this legal instrument containing the provisions of
the Plan.

2.16"Moody's Seasoned Corporate Bond Rate," sometimes referred to as "Moody's,"
is an economic indicator; an arithmetic average of yields of representative
bonds: industrials, public utilities, AAA, AA, A and BAA. For Plan purposes,
Moody's Rate shall be determined by the Committee based on financial services or
publications selected by the Committee.

2.17"Normal Retirement Date" shall mean the date that the Participant attains
his or her sixty-fifth (65th) birthday.

2.18"Participant" shall mean any Executive or Director who elects to participate
in the Keystaff Deferral Plan, signs a Plan Agreement, and is accepted into the
Plan.

2.19"Plan" shall mean the Keystaff Deferral Plan of the Employer which shall be
evidenced by this instrument and by each Plan Agreement.

2.20"Plan Agreement" shall mean the written agreement(s) entered into from time
to time by and between an Employer and a Participant. A separate Plan Agreement
shall be entered into with respect to the Pre-1991 Deferral Account and
Post-1990 Deferral Account of a Participant.

2.21"Plan Year" shall begin on February 1 of each year. The Plan Year which
commenced January 1, 2000 shall end on January 31, 2001 and thereafter shall be
the period from February 1 to January 31.

2.22"Retirement" and "Retire" shall mean severance from employment with the
Employer at or after the attainment of (i) age fifty-five (55) and ten
(10) years of Plan participation or (ii) age sixty-five (65). The Committee
shall have the sole discretion to determine whether Retirement has occurred in
the case of an Executive who becomes a consulting employee or who continues to
be affiliated with the Company as a consultant or under some other status.

2.23"Termination of Employment" shall mean cessation of regular employment,
voluntarily or involuntarily, but excluding Retirement or death, as determined
by the Committee in its sole discretion. In the case of a Director, "Termination
of Employment" shall mean the Director's ceasing to be a Director of the
Company. The Committee shall have the sole discretion to determine (i) whether a
change in status (e.g., from employee to consultant, from employee to consulting
employee, or from director to employee, consulting employee or consultant) shall
be considered a Termination of Employment, (ii) whether a leave of absence shall
be

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considered a Termination of Employment, and (iii) when a consultant or
consulting employee will be considered to have a Termination of Employment.

3.Eligibility

3.1The Committee will determine which Executives and Directors of the Company
are eligible to participate in the Plan.

4.Deferral Commitments

4.1Deferral Elections

An eligible Executive or Director shall not become a Participant in the Plan
unless and until he or she has executed and delivered to the Committee a
Deferral election, including any forms or agreements as may be prescribed by the
Committee, and the Committee shall have accepted such Deferral election and/or
additional forms or agreements. To initially participate in the Plan, the
Executive or Director must submit his or her Deferral election, including any
forms or agreements prescribed by the Committee, during the applicable Deferral
election period established by the Committee. Beginning with the deferral
election made in the Plan Year ending January 31, 2004 for deferrals of Covered
Compensation during calendar year 2004, the Participant's election shall be
carried forward automatically to future Plan Years for which the Participant is
eligible to participate unless, during the applicable election period for such
future Plan Years, the Participant elects to modify or cancel the prior election
under procedures established by the Committee.

Participants may elect to defer up to 100% but not less than 10% of Covered
Compensation, in whole percentages, but not less than $1,000 (before reductions,
if any, under Section 4.2.1).

4.2Changes to Deferral Elections

4.2.1The maximum allowable total deferral of Covered Compensation for all
Participants under this Plan for any Plan Year will be determined by the
Committee. In the event that Participant deferral elections are estimated to
result in this maximum being exceeded, the following method will be used to
reduce Participant deferral percentages so that the total estimated deferral is
less than the maximum allowable.

a)All Executives who have elected to defer more than 50% of Covered Compensation
will be reduced, on an equal percentage basis, but not below 50% of Covered
Compensation or $5,000, whichever is greater.

b)If after implementation of subsection (a) above, the total deferral is still
greater than the maximum allowable total deferral, all Executives' percentage
deferrals will be reduced on an equal percentage basis until the maximum
allowable total deferral is achieved.

4.2.2Any Deferral election by a Participant shall be irrevocable for that Plan
Year following the end of such Plan Year's Deferral election period.

4.2.3The Committee, in its sole discretion, may elect to terminate the Plan at
any time pursuant to Section 9; in such event, deferrals will cease effective as
of the termination date.

4.3Rollover of Balances from Current Deferred Compensation Plan

4.3.1Participants who hold a balance in the Company's current Deferred
Compensation Plan may elect to transfer that balance on a bookkeeping basis into
this Plan at the beginning of the first Plan Year.

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5.Earnings on Participants' Accounts

5.1Base Earnings on Deferral

5.1.1Covered Compensation deferred by a Participant shall be credited to the
Participant's Deferral Account as of the date of deferral. Interest in each Plan
Year will be credited quarterly on the average Deferral Account balance for that
quarter. The rate of interest applied to the Pre-1991 Deferral Account shall be
at a base rate equivalent to an annual rate equal to Moody's Rate, and the rate
applicable to the Post-1990 Deferral Account shall be at a base rate equivalent
to an annual rate equal to the Moody's Rate less 1%. In each case, the Moody's
Rate in effect on each Anniversary Date shall be used to determine the
applicable rate of interest applied during the subsequent Plan Year.

5.2Earnings on Rollover Balances

5.2.1The portion of a Participant's Pre-1991 Deferral Account resulting from the
transfer of a balance from the Company's current Deferred Compensation Plan will
be credited quarterly with a rate of interest equivalent to 60% of the interest
rate announced by Bank of America as its "prime rate" on the previous
Anniversary Date for the first four (4) Plan Years. After the fourth Plan
Anniversary Date, this portion of the Pre-1991 Deferral Account will be credited
with interest quarterly at an effective annual rate equal to Moody's Rate plus
9% until the cumulative interest equals that amount of interest which would have
been credited assuming that Moody's Rate had been used since Plan inception. At
that time, the distinction between portions of the Pre-1991 Deferral Account
from deferrals and from transfers will cease to exist.

5.3Additional Earnings

5.3.1The Committee may, in its sole discretion, determine whether and in what
amount additional earnings shall be allocated to Participants' Deferral
Accounts. Additional earnings in any Plan Year, if any, as determined by the
Committee, will be allocated to each Participant's Deferral Account (except as
otherwise provided in Section 6.1.3 and except for Deferral Accounts of
Participants who have had a Termination of Employment prior to ten years of
participation in the Plan) by the ratio of the Participant's Ceiling Excess
Earnings to the sum of all Participants' Ceiling Excess Earnings as of the end
of the Plan Year, with such additional earnings and Ceiling Excess Earnings
calculated separately for Pre-1991 and Post-1990 Deferral Accounts.

6.Payout of Participants' Accounts

6.1Hardship

6.1.1Notwithstanding the provisions of Sections 6.2 and 6.4 hereof, a
Participant shall be entitled to request a hardship distribution of all or any
portion of his or her Deferral Account(s). A Participant or legal representative
of the Participant must make a written request for a hardship distribution,
stating the reasons such withdrawal is necessary because of a financial
hardship. The Committee, in its sole discretion, shall determine whether or not
to grant the hardship distribution of such Participant's Deferral Account(s)
and, in so doing, may rely on the Participant's statements, and a hardship
distribution may be approved without further investigation unless the Committee
has reason to believe such statements are false.

6.2Termination Payouts

6.2.1A Participant who has a Termination of Employment prior to one year of Plan
Participation shall receive an amount equal to his or her Deferral Account, less
any

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credited earnings. Payment shall be made in a lump sum within twelve months
following Termination of Employment.

6.2.2A Participant who has a Termination of Employment after one year of Plan
Participation but prior to 10 years of Plan participation shall receive payment
in a lump sum within twelve months following Termination of Employment equal to
his or her Deferral Account(s) as of the most recent quarterly valuation.

6.2.3A Participant who has a Termination of Employment after 10 years of Plan
participation shall be subject and entitled to the Normal Payout provisions set
forth in Section 6.4.

6.3Survivor Payouts

6.3.1If a Participant dies before Normal Payout commences and the Plan Agreement
is in effect at the time of death, the Employer shall make a Survivor Payout, as
defined in Section 6.3.2, to the designated Beneficiary.

6.3.2The Survivor Payout shall consist of the Participant's Deferral Account(s)
at the time of death.

6.3.3The Survivor Payout shall be paid in a lump sum to the Beneficiary within
twelve months following verification of the Participant's death.

6.3.4Notwithstanding subsection 6.3.3 above, a Participant may elect on the
Beneficiary form provided by the Committee that the Survivor Payout be made over
a 20-, 40-, or 60-quarter period rather than as a lump sum.

6.4Normal Payouts

6.4.1Normal Payouts shall commence at age sixty-five (65), Retirement or ten
(10) years of Plan participation, whichever is the latest to occur.

6.4.2A Participant who Retires may request that Normal Payout commence upon such
Retirement. The Committee in its sole discretion may grant such request in the
event that the Participant demonstrates financial need and the cash flow of the
Company permits such early commencement.

6.4.3The Participant shall elect to receive the Normal Payout over a 20-, 40- or
60-quarter period. The first payment will commence within 90 days of the quarter
end following Retirement.

6.4.4If a Participant does not elect a payout option, the payments shall be over
a 20-quarter period.

6.4.5Normal Payout shall consist of the Participant's Deferral Account(s) spread
equally over the elected payout period. Earnings, and additional earnings, if
applicable, as provided in Subsection 5.3.1, shall continue to be credited to
the remaining Deferral Account(s) during the payout period and shall be
estimated so that approximately equal payments can be made.

6.4.6If a Participant dies during the Normal Payout period, Normal Payout shall
continue as scheduled to the Participant's Beneficiary.

6.4.7The election provided in Section 6.4.3 shall be made during the initial
Commitment Period of Plan participation and shall become irrevocable at the end
of such period.

6.5Payment for Notification of Death

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6.5.1If a Participant dies following either Retirement or Termination of
Employment, the Company will pay a $5,000 notification payment of a lump sum to
the Participant's Beneficiary within 90 days of the quarter end following
verification of the Participant's death.

7.Beneficiary Designation

7.1Upon forms provided by the Committee, each Participant shall designate in
writing the Beneficiary or Beneficiaries whom such Participant desires to
receive the benefits of this Plan, payable under Sections 6.3, 6.4 and/or 6.5,
in the event of such Participant's death.

7.2A Participant may from time to time change his or her designated Beneficiary
or Beneficiaries without the consent of such Beneficiary or Beneficiaries by
filing a new designation in writing with the Committee.

7.3If a married Participant wishes to designate an individual other than his or
her spouse as Beneficiary, such designation shall not be effective (i.e., the
surviving spouse shall be treated as the sole Beneficiary) unless consented to
in writing by the spouse, which consent shall acknowledge the effect of the
designation and be witnessed by a member of the Committee (or an individual
designated by the Committee) or acknowledged before a notary public.
Notwithstanding the foregoing, spousal consent shall not be necessary if it is
established to the satisfaction of the Committee that there is no spouse of the
Participant or that the required consent cannot be obtained because the spouse
cannot be located. The Company may rely upon the designation of Beneficiary or
Beneficiaries last filed by the Participant in accordance with the terms of this
Plan.

7.4If the designated Beneficiary does not survive the Participant, or if there
is no valid Beneficiary designation, amounts payable under the Plan shall be
paid to the Participant's spouse, or if there is no surviving spouse, then to
the duly appointed and currently acting personal representative of the
Participant's estate. If there is no personal representative of the
Participant's estate duly appointed and acting in that capacity within 60 days
after the Participant's death, then all payments due under the Plan shall be
payable to the person or persons who can verify by affidavit or court order to
the satisfaction of the Committee that they are legally entitled to receive the
benefits specified hereunder pursuant to the laws of intestate succession or
other statutory provisions in effect at the Participant's death in the state in
which the Participant resided.

7.5In the event any amount is payable under the Plan to a minor, payment shall
not be made to the minor, but instead shall be paid to that person's then living
parent(s) to act as custodian, or, if no parent of that person is living, to a
custodian selected by the Committee to hold the funds for the minor under the
Uniform Transfers to Minors Act, or similar law, in effect in the jurisdiction
in which the minor resides.

8.Acceleration Provisions

8.1Notwithstanding the provisions of Section 6 hereof, a Participant shall be
entitled to request a hardship withdrawal of all or any portion of their
Deferral Account or acceleration of payments of their Deferral Account if
payments have already commenced under the payout option selected by the
Participant. A Participant must make a written request to the Committee for a
hardship withdrawal or request for accelerated payment, stating the reasons such
withdrawal or acceleration is necessary because of a financial hardship. The
Committee, in its sole discretion, shall determine whether or not to grant the
Participant's request and, in so doing, may rely on the Participant's
statements, and a hardship withdrawal or accelerated payment may be approved
without further investigation unless the Committee has reason to believe such
statements are false.

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The Participant shall specify from which of their Deferral Account(s) (i.e.,
Pre-1991 or Post-1990, or both) the hardship withdrawal shall be taken.

8.2The Committee, acting in its sole discretion, may determine to accelerate, in
whole or in part, payments of some or all Deferral Account(s) (including
Deferral Account(s) as to which payments have not yet commenced) in the event of
a threatened or actual change in control of the Company, or in the event that a
change in the legal, accounting, or tax treatment of amounts deferred under the
Plan are altered in a manner which would potentially subject the Company, the
Participants, or both, to adverse tax or administrative burdens.

9.Amendment and Termination of Plan

9.1The Company may, at its absolute and sole discretion, amend or terminate the
Plan at any time.

9.2In the event of Company-initiated Plan termination, Participants' entire
Deferral Account(s), including credited interest, will be paid to Participants
within twelve months of the quarter end following Plan termination.

10.Nature of Accounts

10.1All amounts credited to the Deferral Account(s) shall remain the sole
property of the Company and shall be usable by it as part of its general funds
for any legal purpose whatsoever. The Deferral Account(s) shall exist only as
bookkeeping entries for the purpose of facilitating the computation of earnings
credits hereunder and such Deferral Account(s) shall not constitute trust funds,
escrow accounts, or any other form of asset segregation in favor of anyone other
than the Company. No participant shall have any interest in any specific asset
of the Company by virtue of this Plan and each Participant's rights under this
Plan shall at all times be limited to those of a general unsecured creditor of
the Company.

Although sometimes referred to in this Plan as "interest," amounts credited to
Deferral Account(s) pursuant to Section 5.1, 5.2 and 5.3 may be treated as
compensation for tax and payroll withholding purposes, pursuant to applicable
Internal Revenue Code and Treasury regulation requirements.

11.Limitation on Rights of Participants

11.1If a Participant is an employee of the Company, such employment is not for
any specific term and may be terminated by the Participant or Company at any
time, for any reason, with or without cause. Neither this Plan nor any election
to defer compensation hereunder shall be held or construed to confer on any
person any legal right to be continued as an employee, consultant or Director of
the Company; nor to constitute any promise or commitment by the Company
regarding future positions, future work assignments, future compensation or any
other term or condition of employment or affiliation.

12.Non-Transferability

12.1No right to payment under this Plan shall be subject to anticipation,
alienation, sale, assignment, pledge, encumbrance, or charge and any attempt to
anticipate, alienate, sell, assign, pledge, encumber, or charge the same shall
be void. No right to payment shall in any manner be liable for, or subject to,
the debts, contracts, liabilities or torts of the person entitled thereto.

13.Restriction Against Assignment

13.1The Participant or Beneficiary shall not have the power to transfer, assign,
anticipate, modify, or otherwise encumber in any manner whatsoever any of the
payments that will become due

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pursuant to this Plan, nor shall said payments be subject to attachment,
garnishment or execution, or be transferable by operation of law in event of
bankruptcy or insolvency.

14.Binding Effect

14.1The Plan Agreement or Agreements attached hereto, when executed, is/are
solely between the Company and the Participant. The Participant and any
Beneficiary shall have recourse only against the Company for its enforcement,
and any Plan Agreement shall be binding upon the Beneficiary, heirs, and
personal representative of the Participant and upon the successors and assigns
of the Company.

15.Settlement of Disputes

15.1If any disputes arise with regard to the interpretation of any of the
provisions of this Plan or with regard to the amount of any payments due under
this Plan and the Agreement, the Committee shall make any resolution of such
disputes which it deems, in its sole discretion, to be in the best interest of
the Company and the Participants. Any such determinations made by the Committee
shall be final and binding on all Participants in the Plan.

15.2The Committee shall adopt procedures, consistent with Section 503 of the
Employee Retirement Income Security Act of 1974, with respect to notice to
Participants of claims denied under the Plan and review of denied claims.

16.Administration

16.1The Plan shall be administered by the Committee, as appointed by the Board
of Directors of the Company.

17.Forfeiture

Any payment due to a Participant hereunder which is not claimed by the
Participant, his or her Beneficiary, his or her estate or other person legally
entitled thereto within four years after becoming payable shall be forfeited and
canceled and shall remain with the Company and no other person shall have any
right thereto or interest therein. The Company shall have no duty under this
Agreement to give notice to any person other than the Participant or his or her
designated Beneficiary that amounts are payable hereunder.

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QuickLinks

Exhibit 10(f)
KEYSTAFF DEFERRAL PLAN SCIENCE APPLICATIONS INTERNATIONAL CORPORATION (Effective
January 1, 1997)
KEYSTAFF DEFERRAL PLAN OF SCIENCE APPLICATIONS INTERNATIONAL CORPORATION