EXHIBIT 23

               Consent of Ernst & Young LLP, Independent Auditors

We consent to the incorporation by reference in the Registration Statement (Form
S-8 No. 333-98929) pertaining to the Tyler Technologies, Inc. Stock Option Plan
of our report dated February 21, 2003, with respect to the consolidated
financial statements and schedule of Tyler Technologies, Inc. and subsidiaries
included in the Annual Report (Form 10-K) for the year ended December 31, 2002.

                                                               ERNST & YOUNG LLP

Dallas, Texas
February 24, 2003