EXHIBIT 99.1


                    CERTIFICATION OF CHIEF EXECUTIVE OFFICER
                                   PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


         I, Moshe BenBassat, certify, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the
Quarterly Report of ClickSoftware Technologies Ltd. on Form 10-Q/A for the
quarter ended June 30, 2002 fully complies with the requirements of Section
13(a) or 15(d) of the Securities Exchange Act of 1934 and that information
contained in such Quarterly Report on Form 10-Q/A fairly presents in all
material respects the financial condition and results of operations of
ClickSoftware Technologies Ltd.


                                   By:     /s/ MOSHE BENBASSAT
                                           -------------------
                                   Name:   Moshe BenBassat
                                   Title:  Chairman and Chief Executive Officer








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