FAIR, ISAAC AND COMPANY, INCORPORATED
                  STOCK OPTION PLAN FOR NON-EMPLOYEE DIRECTORS

         1. PURPOSE.

         The Plan is intended to provide incentive to the Non-Employee Directors
of the  Corporation,  to align  such  individuals'  interests  with those of the
Corporation's  stockholders,  to  encourage  such  individuals  to remain in the
service  of the  Corporation  and to attract  new  Non-Employee  Directors  with
outstanding qualifications.

         2. DEFINITIONS.

         (a) "Board"  shall mean the Board of Directors of the  Corporation,  as
constituted from time to time.

         (b) "Code" shall mean the Internal Revenue Code of 1986, as amended.

         (c)  "Committee"  shall mean the  committee  appointed  by the Board in
accordance with Section 4.

         (d) "Corporation" shall mean Fair, Isaac and Company,  Incorporated,  a
Delaware corporation.

         (e)  "Exercise  Price" shall mean the amount for which one Share may be
purchased  upon  exercise  of an  Option,  as  determined  by the  Committee  in
accordance with the Plan.

         (f)  "Fair  Market  Value"  shall  mean  the  market  price  of  Stock,
determined by the Committee as follows:

                  (i) If  Stock  was  traded  over-the-counter  on the  date  in
         question but was not  classified as a national  market issue,  then the
         Fair Market Value shall be equal to the mean between the last  reported
         representative  bid and asked  prices  quoted by the NASDAQ  system for
         such date;

                  (ii) If  Stock  was  traded  over-the-counter  on the  date in
         question and was classified as a national  market issue,  then the Fair
         Market Value shall be equal to the last-transaction price quoted by the
         NASDAQ system for such date;

                  (iii) If Stock was traded on a stock  exchange  on the date in
         question,  then the Fair  Market  Value  shall be equal to the  closing
         price reported by the applicable composite-transactions report for such
         date; and

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                                                                    Exhibit 10.6




                  (iv) If none of the foregoing  provisions is applicable,  then
         the Fair Market  Value shall be  determined  by the  Committee  in good
         faith on such basis as it deems appropriate.

         In all cases,  the  determination of Fair Market Value by the Committee
shall be conclusive and binding on all persons.

         (g) "Non-Employee Director" shall mean a member of the Board who is not
a common-law employee of the Corporation or of a Subsidiary.

         (h)  "Nonstatutory  Stock Option" shall mean an option not described in
sections 422(b), 422A(b), 423(b) or 424(b) of the Code.

         (i) "Option" shall mean a Nonstatutory Stock Option granted pursuant to
the Plan and entitling the holder to purchase Shares.

         (j) "Optionee" shall mean an individual who holds an Option.

         (k) "Plan" shall mean this Fair, Isaac and Company,  Incorporated Stock
Option Plan for Non-Employee Directors, as it may be amended from time to time.

         (l) "Purchase  Price" shall mean the Exercise  Price  multiplied by the
number of Shares with respect to which an Option is exercised.

         (m) "Share"  shall mean one share of Stock,  as adjusted in  accordance
with Section 9 (if applicable).

         (n) "Stock" shall mean the Common Stock of the Corporation.

         (o) "Subsidiary" shall mean any corporation,  if the Corporation and/or
one or more other  Subsidiaries  own at least 50% of the total  combined  voting
power of all classes of  outstanding  stock in such  corporation.  A corporation
that attains the status of a Subsidiary on a date after the adoption of the Plan
shall be considered a Subsidiary commencing as of such date.

         3. EFFECTIVE DATE.

         The Plan was adopted by the Board on February 1, 1988. The Plan remains
subject to the approval of the  Corporation's  stockholders  pursuant to Section
13.

         4. ADMINISTRATION.

         (a) Committee Membership.

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         The Plan shall be administered by the Committee. The Committee shall be
appointed  by the Board and shall  consist  only of three or more  disinterested
directors.  The Board may from time to time remove  members from, or add members
to, the Committee.  Vacancies on the Committee,  however caused, shall be filled
by the Board.  The Committee  shall hold meetings at such times and places as it
may determine. Acts of a majority of the Committee at which a quorum is present,
or acts  reduced to or  approved  in writing by a majority of the members of the
Committee, shall be the valid acts of the Committee.

         (b) Committee Responsibilities.

         The  Committee  shall  construe the Plan and carry out its  provisions.
However, the Committee shall have no discretion in selecting the Optionees or in
awarding Options.  The  interpretation  and construction by the Committee of any
provision of the Plan or of any Option  granted  thereunder  shall be final.  No
member of the Committee shall be liable for any action or determination  made in
good faith with respect to the Plan or any Option granted thereunder.

         (c) Disinterested Directors.

         A member of the Board  shall be  deemed to be  "disinterested"  for the
purposes of this Plan only if he or she, at all times  required  for purposes of
Rule 16b-3 of the Securities and Exchange  Commission or any successor rule, was
not  eligible  for the grant of rights or options to  purchase  stock under this
Plan. A Non-Employee  Director shall not fail to qualify as "disinterested"  for
the purpose of  administering  any other stock option plan of the Company solely
because he or she is eligible for the grant of Options under this Plan.

         5. STOCK.

         The  aggregate  number of Shares  which may be issued upon  exercise of
Options under the Plan shall not exceed 40,000.  The number of Shares subject to
Options  outstanding  at any time shall not  exceed  the  number of Shares  then
remaining  available  for  issuance  under  the  Plan.  In the  event  that  any
outstanding Option for any reason expires or is terminated, the Shares allocable
to the unexercised  portion of such Option may again be made subject to Options.
The  limitation  established by this Section 5 shall be subject to adjustment in
the manner  provided  in  Section 9 upon the  occurrence  of an event  specified
therein.

         6. ELIGIBILITY AND GRANT OF OPTIONS.

         Each Non-Employee Director shall receive a single Option covering 8,000
Shares (subject to adjustment  under Section 9). Such Option shall be considered
a Nonstatutory Stock Option for tax purposes. Such Option shall automatically be
granted as of the later of (a)  February  1, 1988,  or (b) the date on which the
Non-Employee  Director completes

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his or her sixth month of  continuous  service as a  Non-Employee  Director.  No
individuals other than  Non-Employee  Directors shall be eligible to participate
in the Plan.

         7. TERMS AND CONDITIONS OF OPTIONS.

         (a) Stock Option Agreements.

         Options shall be evidenced by written  stock option  agreements in such
form as the Committee shall from time to time determine.  Such agreements  shall
comply with, and be subject to, the terms and conditions set forth in the Plan.

         (b) Exercise Price.

         Each Option shall specify the Exercise  Price,  which shall be equal to
100% of the Fair Market Value on the date of grant.

         (c) Medium and Time of Payment.

         The Purchase  Price shall be payable in full in United  States  dollars
upon the exercise of the Option,  except that all or part of the Purchase  Price
may be paid by the surrender of Shares in good form for  transfer,  owned for 12
months or more by the person  exercising  the  Option  and having a Fair  Market
Value on the date of exercise  equal to that portion of the Purchase Price which
is being paid with Shares.

         (d) Withholding Taxes.

         As a  condition  to the  exercise  of an Option or the  disposition  of
Shares  acquired under the Plan, the Optionee  shall make such  arrangements  as
applicable law may require for the  satisfaction of any federal,  state or local
withholding tax  obligations  that may arise in connection with such exercise or
disposition.

         (e) Exercisability, Term and Nontransferability.

         Each  Option  shall  become  exercisable  six months  after the date of
grant,  subject to Section 13. The Option shall  terminate on the day before the
10th  anniversary of the date of grant,  except as otherwise  provided in (f) or
(g) below.

         During the lifetime of the  Optionee,  the Option shall be  exercisable
only by the Optionee and shall not be assignable or  transferable.  In the event
of the Optionee's death, the Option shall not be transferable other than by will
or by the laws of descent and distribution.

         (f) Termination of Board Membership

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         If an Optionee  ceases to be a member of the Board for any reason other
than his or her death,  then the  Optionee  shall have the right to  exercise an
Option (to the extent exercisable but not previously  exercised and not expired)
at any time  within 90 days  after the date when he or she ceases to be a member
of the Board.

         For purposes of this  Subsection  (f),  status as a member of the Board
shall be deemed to continue while the Optionee is on military leave,  sick leave
or other bona fide leave of absence.

         Options  already  granted  pursuant  to  this  Plan  to a  Non-Employee
Director shall not be affected by reason of the Optionee  thereafter becoming an
employee  of the  Corporation  or a  Subsidiary  so long as he or she  remains a
member of the Board.

         (g) Death of Optionee.

         If an  Optionee  dies  while he or she is a member of the Board and has
not fully  exercised an Option,  then such Option (to the extent not  previously
exercised and not expired) may be exercised in full at any time within 12 months
after the  Optionee's  death by the  executors or  administrators  of his or her
estate or by any person or persons who have acquired  such Option  directly from
the Optionee by bequest or inheritance.

         (h) Rights as a Stockholder.

         An Optionee, or a transferee of an Optionee,  shall have no rights as a
stockholder  with  respect to any Shares  covered by his or her Option until the
date of the issuance of a stock certificate for such Shares. No adjustment shall
be made for dividends (ordinary or extraordinary, whether in cash, securities or
other  property),  distributions  or other  rights for which the record  date is
prior to the date when such stock  certificate is issued,  except as provided in
Section 9.

         8. TERM OF PLAN.

         Options may be granted  pursuant to the Plan until January 31, 1998, or
until such earlier date as the Board may determine at its sole discretion.

         9. RECAPITALIZATIONS.

         Subject to any required  action by  stockholders,  the number of Shares
covered by the Plan as  provided  in Section 5, the number of Shares  covered by
each  outstanding  Option  and the  Exercise  Price  thereof  shall be  adjusted
proportionately  for any  increase or  decrease  in the number of issued  Shares
resulting  from a  subdivision  or  consolidation  of Shares or the payment of a
stock  dividend or any other increase or decrease in the number of issued Shares
effected without receipt of consideration by the Corporation.

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         Subject to any required action by  stockholders,  if the Corporation is
the  surviving  corporation  in any merger or  consolidation,  each  outstanding
Option shall pertain to the securities to which a holder of the number of Shares
subject to the Option would have been entitled.  A dissolution or liquidation of
the Corporation or a merger or consolidation in which the Corporation is not the
surviving  corporation shall cause each outstanding Option to terminate,  unless
the agreement or merger or consolidation  provides for the assumption thereof by
the surviving corporation.

         To the extent that the  foregoing  adjustments  relate to securities of
the  Corporation,  such  adjustments  shall  be  made  by the  Committee,  whose
determination shall be conclusive and binding on all persons.

         Except as expressly provided in this Section 9, the Optionee shall have
no rights by reason of any  subdivision or  consolidation  of shares of stock of
any class,  the payment of any stock  dividend or any other increase or decrease
in the  number of shares of stock of any class or by reason of any  dissolution,
liquidation,  merger or  consolidation or spin-off of assets or stock of another
corporation,  and any issue by the  Corporation of shares of stock of any class,
or securities  convertible into shares of stock of any class,  shall not affect,
and no adjustment by reason thereof shall be made with respect to, the number or
Exercise Price of Shares subject to an Option.

         The grant of an Option pursuant to the Plan shall not affect in any way
the right or power of the  Corporation to make  adjustments,  reclassifications,
reorganizations  or changes of its  capital or business  structure,  to merge or
consolidate or to dissolve,  liquidate,  sell or transfer all or any part of its
business or assets.

         10. SECURITIES LAW REQUIREMENTS.

         (a) Legality of Issuance.

         No Shares  shall be issued upon the  exercise of any Option  unless and
until the Corporation has determined that (i) it and the Optionee have taken all
actions  required to register the Shares under the  Securities  Act of 1933,  as
amended  (the  "Act"),   or  to  perfect  an  exemption  from  the  registration
requirements  thereof;  (ii) any  applicable  listing  requirement  of any stock
exchange  on which  Stock is  listed  has been  satisfied;  and  (iii) any other
applicable provision of state or federal law has been satisfied.

         (b) Restrictions on Transfer; Representations of Optionee.

         Regardless  of whether the  offering  and sale of Shares under the Plan
have been  registered  under the Act or have been  registered or qualified under
the securities laws of any state, the Corporation may impose  restrictions  upon
the sale,  pledge or other  transfer of such Shares  (including the placement of
appropriate   legends  on  stock  certificates)  if,  in  the  judgment  of  the
Corporation  and its counsel,  such  restrictions  are necessary or desirable in
order to achieve  compliance with the provisions of the Act, the securities

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laws of any state or any other law.  In the event that the sale of Shares  under
the Plan is not  registered  under the Act but an exemption  is available  which
requires an investment  representation  or other  representation,  each Optionee
shall be  required  to  represent  that  such  Shares  are  being  acquired  for
investment, and not with a view to the sale or distribution thereof, and to make
such  other  representations  as are  deemed  necessary  or  appropriate  by the
Corporation and its counsel. Stock certificates evidencing Shares acquired under
the Plan  pursuant  to an  unregistered  transaction  shall bear an  appropriate
restrictive legend.

         Any determination by the Corporation and its counsel in connection with
any of the matters set forth in this Section 10 shall be conclusive  and binding
on all persons.

         (c) Registration or Qualification of Securities.

         The Corporation may, but shall not be obligated to, register or qualify
the sale of Shares under the Act or any other  applicable  law. The  Corporation
shall not be obligated to take any affirmative action in order to cause the sale
of Shares under the Plan to comply with any law.

         (d) Removal of Legends.

         If, in the  opinion  of the  Corporation  and its  counsel,  any legend
placed on a stock  certificate  representing  Shares issued under the Plan is no
longer required,  the holder of such  certificate  shall be entitled to exchange
such  certificate for a certificate  representing  the same number of Shares but
lacking such legend.

         11. AMENDMENT OF THE PLAN.

         The Board may from time to time, with respect to any Shares at the time
not subject to Options, suspend or discontinue the Plan or revise or amend it in
any respect  whatsoever  except that,  without the approval of the Corporation's
stockholders, no such revision or amendment shall:

         (a) Materially  increase the benefits  accruing to Optionees  under the
     Plan;

         (b)  Materially  increase  the  number of Shares  subject  to the Plan,
     except as provided in Section 9;

         (c) Materially  change the designation in Section 6 with respect to the
     class of individuals eligible to receive Options; or

         (d) Amend this Section 11 to defeat its purpose.

         12. APPLICATION OF FUNDS.

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         The  proceeds  received  by the  Corporation  from  the  sale of  Stock
pursuant  to the  exercise  of an  Option  will be used  for  general  corporate
purposes.

         13. APPROVAL OF STOCKHOLDERS.

         The  adoption  of the Plan and any  amendment  described  in Section 11
shall be  subject  to  approval  by the  affirmative  vote of the  holders  of a
majority of the outstanding shares of the Corporation entitled to vote or by the
unanimous  written  consent  of  all  holders  of  the  outstanding   shares  of
the-Corporation  entitled to vote. In the event that the Plan is not approved by
stockholders  at or before the first annual meeting of  stockholders  held after
its  adoption by the Board,  any Option  theretofore  granted  shall be null and
void.  Any other  provision  of the Plan  notwithstanding,  no  Option  shall be
exercisable until the Corporation's stockholders have approved the Plan.

         14. EXECUTION.

         To  record  the  adoption  of the Plan by the  Board,  effective  as of
February 1, 1988, the  Corporation  has caused its authorized  officers to affix
the corporate name hereto.


                                       FAIR, ISAAC AND COMPANY, INCORPORATED

                                       By ______________________________________
                                          President and CEO


                                       By ______________________________________
                                          Vice President and Secretary

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