JOINT FILING AGREEMENT ----------------------

                                                                       Exhibit 1


                             JOINT FILING AGREEMENT
                             ----------------------

         The undersigned hereby consent to the joint filing by any of them of a
Statement on Schedule 13D and any amendments thereto, whether heretofore or
hereafter filed, relating to the securities of Thinking Tools, Inc., and hereby
affirm that this Amendment No. 2 to Schedule 13D is being filed on behalf of
each of the undersigned.


Dated: August 23, 2002                      THINKING TECHNOLOGIES, L.P

                                            By: ▇▇▇▇▇ Capital Management, L.P.

                                            By:  /s/ ▇▇▇▇ ▇▇▇▇▇
                                                 -------------------------------
                                                 Name: ▇▇▇▇ ▇▇▇▇▇
                                                 Title:   President


Dated: August 23, 2002                           /s/ ▇▇▇▇ ▇▇▇▇▇
                                                 -------------------------------
                                                 ▇▇▇▇ ▇▇▇▇▇



Dated: August 23, 2002                      EUROPA INTERNATIONAL INC.

                                            By: ▇▇▇▇▇ Capital Management, L.P.

                                            By:  /s/ ▇▇▇▇ ▇▇▇▇▇
                                                 -------------------------------
                                                 Name: ▇▇▇▇ ▇▇▇▇▇
                                                 Title:   President

Dated: August 23, 2002                      ▇▇▇▇▇ CAPITAL MANAGEMENT, L.P.

                                            By:  /s/ ▇▇▇▇ ▇▇▇▇▇
                                                 -------------------------------
                                                 Name:  ▇▇▇▇ ▇▇▇▇▇
                                                 Title: President