UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13G


                    Under the Securities Exchange Act of 1934
- -------------------------------------------------------------------------------
                              (Amendment No. ____)*

                      Fair, Isaac and Company, Incorporated
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                                (Name of Issuer)

                     Common Stock, par value $0.01 per share
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                         (Title of Class of Securities)

                                   303250 10 4
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                                 (CUSIP Number)


                                February 11, 1999
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             (Date of Event Which Requires Filing of this Statement)

         Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

         / /      Rule 13d-1(b)
         /X/      Rule 13d-1(c)
         / /      Rule 13d-1(d)

         *   The remainder of this cover page shall be filled out for a
             reporting person's initial filing on this form with respect to the
             subject class of securities, and for any subsequent amendment
             containing information which would alter disclosures provided in a
             prior cover page.

         The information required on the remainder of this cover page shall not
         be deemed to be "filed" for the purpose of Section 18 of the Securities
         Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of
         that section of the Act but shall be subject to all other provisions of
         the Act (however, see the Notes).

                                Page 1 of 5 Pages





- --------------------------------------------------------------------------------
CUSIP No.:  303250 10 4
- --------------------------------------------------------------------------------
    1       Names of Reporting Persons:   Ellen I. Fair
            I.R.S. Identification Nos. of above persons (entities only):
- --------------------------------------------------------------------------------
            Check the Appropriate Box if a Member of a Group (See Instructions):
    2       (a)  / /
            (b)  / /
- --------------------------------------------------------------------------------
    3       SEC Use Only:
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    4       Citizenship or Place of Organization:                  United States
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                                   5       Sole Voting Power            155,831
                                 -----------------------------------------------
      Number of Shares             6       Shared Voting Power        1,486,800
     Beneficially Owned          -----------------------------------------------
     by Each Reporting             7       Sole Dispositive Power       155,831
        Person With              -----------------------------------------------
                                   8       Shared Dispositive Power   1,486,800
- --------------------------------------------------------------------------------
    9       Aggregate Amount Beneficially Owned by
            Each Reporting Person:                                    1,642,631
- --------------------------------------------------------------------------------
    10      Check if the Aggregate Amount in Row (9)
            Excludes Certain Shares (See Instructions):                      / /
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    11      Percent of Class Represented by Amount in Row (9):             11.7%
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    12      Type of Reporting Person (See Instructions):                      IN
- --------------------------------------------------------------------------------


                                Page 2 of 5 Pages





Item 1.
- -------

           (a) Name of Issuer: Fair, Isaac and Company, Incorporated

           (b) Address of Issuer's Principal Executive Offices: 120 North
Redwood Drive, San Rafael, California 94903


Item 2.
- -------

           (a) Name of Person Filing: Ellen I. Fair

           (b) Address of Principal Business Office or, if none, Residence: 566
Old Quarry Road North, Larkspur, California 94939

           (c) Citizenship: United Stated

           (d) Title of Class of Securities: Common Stock, par value $0.01 per
share.

           (e) CUSIP Number: 303250 10 4


Item 3.
- -------

           If this statement is filed pursuant to sections 240.13d-1(b) or
240.13d-2(b) or (c), check whether the person filing is a:

           (a) / / Broker or dealer registered under section 15 of the Act (15
                   U.S.C. 78o);

           (b) / / Bank as defined in section 3(a)(6) of the Act (15 U.S.C.
                   78c);

           (c) / / Insurance company as defined in section 3(a)(19) of the Act
                   (15 U.S.C. 78c);

           (d) / / Investment company registered under section 8 of the
                   Investment Company Act of 1940 (15 U.S.C. 80a-8);

           (e) / / An investment adviser in accordance with section
                   240.13d-1(b)(1)(ii)(E);

           (f) / / An employee benefit plan or endowment fund in accordance with
                   section 240.13d-1(b)(1)(ii)(F);

           (g) / / A parent holding company or control person in accordance with
                   section 240.13d-1(b)(1)(ii)(G);

           (h) / / A savings association as defined in section 3(b) of the
                   Federal Deposit Insurance Act (12 U.S.C. 1813);

           (i) / / A church plan that is excluded from the definition of an
                   investment company under section 3(c)(14) of the Investment 
                   Company Act of 1940 (15 U.S.C. 80a-3);

                                Page 3 of 5 Pages





           (j) / / Group, in accordance with section 240.13d-1(b)(1)(ii)(J).

Item 4.  Ownership.
- -------  ---------

           Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.

           (a) Amount beneficially owned:                             1,642,631

           (b) Percent of class:                                          11.7%

           (c) Number of shares as to which the person has:

                  (i)   Sole power to vote or to direct the vote:       155,831

                  (ii)  Shared power to vote or to direct the vote:   1,486,800

                  (iii) Sole power to dispose or to direct the
                        disposition of:                                 155,831

                  (iv)  Shared power to dispose or to direct the
                        disposition of:                               1,486,800


Item 5.  Ownership of Five Percent or Less of a Class.
- -------  --------------------------------------------

           If this statement is being filed to report the fact that as of the
date hereof the reporting person has ceased to be the beneficial owner of more
than five percent of the class of securities, check the following / /.


Item 6.  Ownership of More than Five Percent on Behalf of Another Person.
- -------  ---------------------------------------------------------------

           1,486,800 of the shares which are the subject of this Schedule 13G
are beneficially owned pursuant to the provisions of The William Rodden Fair and
Inger Johanne Fair Revocable Trust, over which Ellen I. Fair, Erik E. Fair,
Christian Fair and Inger J. Fair are co-trustees and share voting and
dispositive power. The filing of this Schedule 13G shall not be construed as an
admission that Ellen I. Fair is, for the purposes of Section 13(d) or 13(g) of
the Securities Exchange Act of 1934, the beneficial owner of such 1,486,800
shares.


Item 7. Identification and Classification of the Subsidiary Which Acquired the 
- ------- ----------------------------------------------------------------------
        Security Being Reported on By the Parent Holding Company.
        --------------------------------------------------------

           Not applicable.


Item 8. Identification and Classification of Members of the Group.
- ------- ---------------------------------------------------------

           Not applicable.


                                Page 4 of 5 Pages





Item 9.    Notice of Dissolution of Group.
- -------    ------------------------------

           Not applicable.


Item 10.   Certification.
- --------   -------------

           By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were not acquired and are not held for
the purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.


                                    SIGNATURE
                                    ---------


           After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete and
correct.

           Dated:  February 11, 1999



                                                By       /s/ Ellen I. Fair
                                                   ----------------------------
                                                          Ellen I. Fair


                                Page 5 of 5 Pages