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

                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                                (AMENDMENT NO. 4)

                            CHORDIANT SOFTWARE, INC.

                                (Name of Issuer)

                    COMMON STOCK, PAR VALUE $0.001 PER SHARE
                         (Title of Class of Securities)

                                    170404107
                                 (CUSIP Number)

                                THOMAS J. MURPHY
                    C/O GENERAL ATLANTIC SERVICE CORPORATION
                                3 PICKWICK PLAZA
                          GREENWICH, CONNECTICUT 06830
                            TEL. NO.: (203) 629-8600
                          (Name, Address and Telephone
                                    Number of
                      Person Authorized to Receive Notices
                               AND COMMUNICATIONS)

                                 January 6, 2004
                      (Date of Event which Requires Filing
                               of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 1(f) or 1(g), check the following box [_].

Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-1(a) for other
parties to whom copies are to be sent.

*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).


-----------------------------                      -----------------------------
170404107                                                          Page  2 of 18
-----------------------------                      -----------------------------


--------------------------------------------------------------------------------
1        NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                  General Atlantic Partners, LLC
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                (a)     [X]
                                                                (b)     [_]
--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

                  OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)
                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware
--------------------------------------------------------------------------------
                                7       SOLE VOTING POWER

         NUMBER OF                      -0-
           SHARES               ------------------------------------------------
 BENEFICIALLY OWNED BY EACH     8       SHARED VOTING POWER
         REPORTING
           PERSON                       187,500
            WITH                ------------------------------------------------
                                9       SOLE DISPOSITIVE POWER

                                        -0-
                                ------------------------------------------------
                                10      SHARED DISPOSITIVE POWER

                                        187,500
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  187,500
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                  0.3%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

                  OO
--------------------------------------------------------------------------------


-----------------------------                      -----------------------------
170404107                                                          Page  3 of 18
-----------------------------                      -----------------------------


--------------------------------------------------------------------------------
1        NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                  General Atlantic Partners 42, L.P.
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                (a)     [X]
                                                                (b)     [_]
--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

                  OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)
                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware
--------------------------------------------------------------------------------
                                7       SOLE VOTING POWER

         NUMBER OF                      -0-
           SHARES               ------------------------------------------------
 BENEFICIALLY OWNED BY EACH     8       SHARED VOTING POWER
         REPORTING
           PERSON                       187,500
            WITH                ------------------------------------------------
                                9       SOLE DISPOSITIVE POWER

                                        -0-
                                ------------------------------------------------
                                10      SHARED DISPOSITIVE POWER

                                        187,500
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  187,500
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                  0.3%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

                  PN
--------------------------------------------------------------------------------


-----------------------------                      -----------------------------
170404107                                                          Page  4 of 18
-----------------------------                      -----------------------------


--------------------------------------------------------------------------------
1        NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                  General Atlantic Partners 48, L.P.
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                (a)     [X]
                                                                (b)     [_]
--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

                  OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)
                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware
--------------------------------------------------------------------------------
                                7       SOLE VOTING POWER

         NUMBER OF                      -0-
           SHARES               ------------------------------------------------
 BENEFICIALLY OWNED BY EACH     8       SHARED VOTING POWER
         REPORTING
           PERSON                       187,500
            WITH                ------------------------------------------------
                                9       SOLE DISPOSITIVE POWER

                                        -0-
                                ------------------------------------------------
                                10      SHARED DISPOSITIVE POWER

                                        187,500
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  187,500
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                  0.3%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

                  PN
--------------------------------------------------------------------------------


-----------------------------                      -----------------------------
170404107                                                          Page  5 of 18
-----------------------------                      -----------------------------


--------------------------------------------------------------------------------
1        NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                  General Atlantic Partners 52, L.P.
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                (a)     [X]
                                                                (b)     [_]
--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

                  OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)
                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware
--------------------------------------------------------------------------------
                                7       SOLE VOTING POWER

         NUMBER OF                      -0-
           SHARES               ------------------------------------------------
 BENEFICIALLY OWNED BY EACH     8       SHARED VOTING POWER
         REPORTING
           PERSON                       187,500
            WITH                ------------------------------------------------
                                9       SOLE DISPOSITIVE POWER

                                        -0-
                                ------------------------------------------------
                                10      SHARED DISPOSITIVE POWER

                                        187,500
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  187,500
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                  0.3%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

                  PN
--------------------------------------------------------------------------------


-----------------------------                      -----------------------------
170404107                                                          Page  6 of 18
-----------------------------                      -----------------------------


--------------------------------------------------------------------------------
1        NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                  General Atlantic Partners 57, L.P.
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                (a)     [X]
                                                                (b)     [_]
--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

                  OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)
                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware
--------------------------------------------------------------------------------
                                7       SOLE VOTING POWER

         NUMBER OF                      -0-
           SHARES               ------------------------------------------------
 BENEFICIALLY OWNED BY EACH     8       SHARED VOTING POWER
         REPORTING
           PERSON                       187,500
            WITH                ------------------------------------------------
                                9       SOLE DISPOSITIVE POWER

                                        -0-
                                ------------------------------------------------
                                10      SHARED DISPOSITIVE POWER

                                        187,500
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  187,500
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                  0.3%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

                  PN
--------------------------------------------------------------------------------


-----------------------------                      -----------------------------
170404107                                                          Page  7 of 18
-----------------------------                      -----------------------------


--------------------------------------------------------------------------------
1        NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                  GAP Coinvestment Partners, L.P.
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                (a)     [X]
                                                                (b)     [_]
--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

                  OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)
                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

                  New York
--------------------------------------------------------------------------------
                                7       SOLE VOTING POWER

         NUMBER OF                      -0-
           SHARES               ------------------------------------------------
 BENEFICIALLY OWNED BY EACH     8       SHARED VOTING POWER
         REPORTING
           PERSON                       187,500
            WITH                ------------------------------------------------
                                9       SOLE DISPOSITIVE POWER

                                        -0-
                                ------------------------------------------------
                                10      SHARED DISPOSITIVE POWER

                                        187,500
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  187,500
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                  0.3%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

                  PN
--------------------------------------------------------------------------------


-----------------------------                      -----------------------------
170404107                                                          Page  8 of 18
-----------------------------                      -----------------------------


--------------------------------------------------------------------------------
1        NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                  GAP Coinvestment Partners II, L.P.
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                (a)     [X]
                                                                (b)     [_]
--------------------------------------------------------------------------------
3        SEC USE ONLY


--------------------------------------------------------------------------------
4        SOURCE OF FUNDS

                  OO
--------------------------------------------------------------------------------
5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) or 2(e)
                                                                        [_]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware
--------------------------------------------------------------------------------
                                7       SOLE VOTING POWER

         NUMBER OF                      -0-
           SHARES               ------------------------------------------------
 BENEFICIALLY OWNED BY EACH     8       SHARED VOTING POWER
         REPORTING
           PERSON                       187,500
            WITH                ------------------------------------------------
                                9       SOLE DISPOSITIVE POWER

                                        -0-
                                ------------------------------------------------
                                10      SHARED DISPOSITIVE POWER

                                        187,500
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  187,500
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

                                                                        [_]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                  0.3%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

                  PN
--------------------------------------------------------------------------------


-----------------------------                      -----------------------------
170404107                                                          Page  9 of 18
-----------------------------                      -----------------------------


ITEM 1.  SECURITY AND ISSUER.

This Amendment No. 4 to Schedule 13D is filed by the undersigned to amend and
supplement the Schedule 13D, dated as of April 4, 2001, as amended by Amendment
No. 1 thereto, dated as of August 29, 2001, as amended by Amendment No. 2
thereto, dated as of August 31, 2001, and as amended by Amendment No. 3 thereto,
dated as of November 3, 2003, with respect to the shares of common stock, par
value $0.001 per share (the "Common Stock"), of Chordiant Software, Inc., a
Delaware corporation (the "Company"). The address of the principal executive
office of the Company is 20400 Stevens Creek Boulevard, Suite 400, Cupertino, CA
95014.

ITEM 2.  IDENTITY AND BACKGROUND.

ITEM 2 IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:

This statement is being filed by a group, as defined in Rule 13d-5 of the
General Rules and Regulations under the Securities Exchange Act of 1934, as
amended. The members of the group are General Atlantic Partners, LLC, a Delaware
limited liability company ("GAP"), General Atlantic Partners 42, L.P., a
Delaware limited partnership ("GAP 42"), General Atlantic Partners 48, L.P., a
Delaware limited partnership ("GAP 48"), General Atlantic Partners 52, L.P., a
Delaware limited partnership ("GAP 52"), General Atlantic Partners 57, L.P., a
Delaware limited partnership ("GAP 57"), GAP Coinvestment Partners, L.P., a New
York limited partnership ("GAPCO"), and GAP Coinvestment Partners II, L.P., a
Delaware limited partnership ("GAPCO II" and, collectively with GAP, GAP 42, GAP
48, GAP 52, GAP 57 and GAPCO, the "Reporting Persons"), all of which are located
at 3 Pickwick Plaza, Greenwich, Connecticut 06830. Each of the Reporting Persons
is engaged in acquiring, holding and disposing of interests in various companies
for investment purposes.

The general partner of each of GAP 42, GAP 48, GAP 52 and GAP 57 is GAP. The
managing members of GAP are Steven A. Denning, Peter L. Bloom, Peter L.S.
Currie, Mark F. Dzialga, Erik Engstrom, Klaus Esser, William E. Ford, William O.
Grabe, David C. Hodgson, Braden R. Kelly, Rene M. Kern, Marc F. McMorris,
Matthew Nimetz, Clifton S. Robbins, Franchon M. Smithson, Tom C. Tinsley, Philip
P. Trahanas, Florian Wendelstadt and John Wong (collectively, the "GAP Managing
Members"). The GAP Managing Members (other than Messrs. Esser, McMorris and
Trahanas) are also the general partners of GAPCO and GAPCO II. The business
address of each of the GAP Managing Members (other than Messrs. Esser, Currie,
Kelly, Lansing, Tinsley, Wendelstadt and Wong) is 3 Pickwick Plaza, Greenwich,
Connecticut 06830. The business address of Mr. Esser is Koenigsallee 62, 40212
Duesseldorf, Germany. The business address of Mr. Wendelstadt is 83 Pall Mall,
Sixth Floor, London SW1Y 5ES, United Kingdom. The business address of Messrs.
Currie, Kelly and Lansing is 228 Hamilton Avenue, Palo Alto, California 94301.
The business address of Mr. Tinsley is 11600 Sunrise Valley Drive, Reston,
Virginia 20191. The business address of Mr. Wong is 24 Raffles Place, 29-04
Clifford Center, Singapore 04862. Messrs. Esser, Kern and Wendelstadt are
citizens of Germany; Mr. Engstrom is a citizen of Sweden; and Mr. Wong is a
citizen of Singapore. The present principal occupation or employment of each of
the GAP Managing Members is as a managing member of GAP. Each of the GAP
Managing Members, other than Messrs. Engstrom, Esser, Kern, Wendelstadt and
Wong, is a citizen of the United States.

None of the Reporting Persons and none of the above individuals has, during the
last five years, been (i) convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors) or (ii) a party to a civil proceeding of a
judicial or administrative body of competent jurisdiction which resulted in such
Reporting Person or individual being subject to a judgment, decree or final
order finding any violation of federal or state securities laws or enjoining
future violations of, or prohibiting or mandating activities subject to, such
laws.

ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

UNCHANGED


-----------------------------                      -----------------------------
170404107                                                          Page 10 of 18
-----------------------------                      -----------------------------


ITEM 4.  PURPOSE OF TRANSACTION.

UNCHANGED

ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER.

ITEM 5 IS HEREBY AMENDED AND RESTATED IN ITS ENTIRETY AS FOLLOWS:

(a)      As of the date hereof, GAP, GAP 42, GAP 48, GAP 52, GAP 57, GAPCO and
GAPCO II each own of record no shares of Common Stock, respectively, or 0%,
respectively, of the Company's issued and outstanding shares of Common Stock. In
addition, as of the date hereof, each of GAP 52 and GAPCO II owns warrants to
purchase 153,045 shares of Common Stock and 34,455 shares of Common Stock,
respectively or 0.2% and 0.1%, respectively, of the Company's issued and
outstanding shares of Common Stock.

By virtue of the fact that the GAP Managing Members (other than Messrs. Esser,
McMorris and Trahanas) are also the general partners authorized and empowered to
vote and dispose of the securities held by GAPCO and GAPCO II, and that GAP is
the general partner of GAP 42, GAP 48, GAP 52 and GAP 57, the Reporting Persons
may be deemed to share voting power and the power to direct the disposition of
the shares of Common Stock which each owns of record. Accordingly, as of the
date hereof, each of the Reporting Persons may be deemed to own beneficially an
aggregate of 187,500 shares of Common Stock or 0.3% of the Company's issued and
outstanding shares of Common Stock.

(b)      Each of the Reporting Persons has the shared power to direct the vote
and the shared power to direct the disposition of the 187,500 shares of Common
Stock that may be deemed to be owned beneficially by each of them.

(c)      On January 6, 2004, GAP 42, GAP 48, GAP 52, GAP 57, GAPCO and GAPCO II
sold on the open market the following number of shares of Common Stock for the
aggregate proceeds listed below, which, in the aggregate, amount to over 1% of
the shares of Common Stock outstanding as of October 29, 2003:

      SELLER            SHARES SOLD         PRICE PER SHARE            PROCEEDS
      ------            -----------         ---------------            --------

      GAP 42            2,084,826               $5.20            $10,841,095.20

      GAP 48             211,757                $5.20             $1,101,136.40

      GAP 52             689,556                $5.20             $3,585,691.20

      GAP 57            2,146,054               $5.20            $11,159,480.80

      GAPCO              500,819                $5.20             $2,604,258.80

      GAPCO II           619,412                $5.20             $3,220,942.40


(d)      No person other than the persons listed is known to have the right to
receive or the power to direct the receipt of dividends from, or the proceeds
from the sale of, any securities owned by any member of the group.

(e)      On January 6, 2004, the Reporting Persons ceased to beneficially own
more than five percent of the shares of Common Stock.

ITEM 6.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIP WITH RESPECT TO
         THE ISSUER.

UNCHANGED



-----------------------------                      -----------------------------
170404107                                                          Page 11 of 18
-----------------------------                      -----------------------------


ITEM 7.  MATERIALS TO BE FILED AS EXHIBITS.



                  Exhibit 1:        Agreement relating to the filing of joint
                                    acquisition statements as required by Rule
                                    13d-1(k)(1) under the Securities Exchange
                                    Act of 1934, as amended.

                  Exhibit 2:        Power of Attorney dated January 4, 2004,
                                    appointing Thomas J. Murphy Attorney-In-Fact
                                    for GAP.

                  Exhibit 3:        Power of Attorney dated January 4, 2004,
                                    appointing Thomas J. Murphy Attorney-In-Fact
                                    for GAPCO.

                  Exhibit 4:        Power of Attorney dated January 4, 2004,
                                    appointing Thomas J. Murphy Attorney-In-Fact
                                    for GAPCO II.



-----------------------------                      -----------------------------
170404107                                                          Page 12 of 18
-----------------------------                      -----------------------------


                                   SIGNATURES

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 AS OF JANUARY 7, 2004

                                   GENERAL ATLANTIC PARTNERS, LLC


                                   By:  /s/ Thomas J. Murphy
                                        ---------------------------------------
                                        Name:   Thomas J. Murphy
                                        Title:  Attorney-In-Fact


                                   GENERAL ATLANTIC PARTNERS 42, L.P.

                                   By:  General Atlantic Partners, LLC,
                                        Its general partner

                                   By:  /s/ Thomas J. Murphy
                                        ---------------------------------------
                                        Name:   Thomas J. Murphy
                                        Title:  Attorney-In-Fact


                                   GENERAL ATLANTIC PARTNERS 48, L.P.

                                   By:  General Atlantic Partners, LLC,
                                        Its general partner

                                   By:  /s/ Thomas J. Murphy
                                        ---------------------------------------
                                        Name:   Thomas J. Murphy
                                        Title:  Attorney-In-Fact


                                   GENERAL ATLANTIC PARTNERS 52, L.P.

                                   By:  General Atlantic Partners, LLC,
                                        Its general partner

                                   By:  /s/ Thomas J. Murphy
                                        ---------------------------------------
                                        Name:   Thomas J. Murphy
                                        Title:  Attorney-In-Fact


                                   GENERAL ATLANTIC PARTNERS 57, L.P.

                                   By:  General Atlantic Partners, LLC,
                                        Its general partner

                                   By:  /s/ Thomas J. Murphy
                                        ---------------------------------------
                                        Name:   Thomas J. Murphy
                                        Title:  Attorney-In-Fact


-----------------------------                      -----------------------------
170404107                                                          Page 13 of 18
-----------------------------                      -----------------------------


                                   GAP COINVESTMENT PARTNERS, L.P.


                                   By:  /s/ Thomas J. Murphy
                                        ---------------------------------------
                                        Name:   Thomas J. Murphy
                                        Title:  Attorney-In-Fact


                                   GAP COINVESTMENT PARTNERS II, L.P.

                                   By:  /s/ Thomas J. Murphy
                                        ---------------------------------------
                                        Name:   Thomas J. Murphy
                                        Title:  Attorney-In-Fact