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

                                  SCHEDULE 13G


                    Under the Securities Exchange Act of 1934
                               (Amendment No. 2)*

                                   ----------

                            TYLER TECHNOLOGIES, INC.
                  ---------------------------------------------
                                (Name of Issuer)

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

                                    902184100
                  ---------------------------------------------
                                 (CUSIP Number)


                                  May 16, 2003
                  ---------------------------------------------
             (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).





                                  SCHEDULE 13G

-------------------                                            -----------------
CUSIP NO. 902184100                                            PAGE 2 of 7 PAGES
-------------------                                            -----------------

--------------------------------------------------------------------------------
1        NAME OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

         William Hunter Oates 1998 Trust
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
                                                                        (a) [ ]
                                                                        (b) [ ]
--------------------------------------------------------------------------------
3        SEC USE ONLY

--------------------------------------------------------------------------------
4        CITIZENSHIP OR PLACE OF ORGANIZATION
         United States
--------------------------------------------------------------------------------
                           5        SOLE VOTING POWER
                                    0
    NUMBER OF
     SHARES                -----------------------------------------------------
   BENEFICIALLY            6        SHARED VOTING POWER
     OWNED BY                       0
      EACH
    REPORTING              -----------------------------------------------------
     PERSON                7        SOLE DISPOSITIVE POWER
      WITH                          0

                           -----------------------------------------------------
                           8        SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         0
--------------------------------------------------------------------------------
10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
                                                                            [ ]
         (See Instructions)
--------------------------------------------------------------------------------
11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
         0%
--------------------------------------------------------------------------------
12       TYPE OF REPORTING PERSON (See Instructions)
         OO
--------------------------------------------------------------------------------





                                  SCHEDULE 13G

-------------------                                            -----------------
CUSIP NO. 902184100                                            PAGE 3 of 7 PAGES
-------------------                                            -----------------

--------------------------------------------------------------------------------
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

     John M. Yeaman
--------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
                                                                        (a) [ ]
                                                                        (b) [ ]
--------------------------------------------------------------------------------
3    SEC USE ONLY

--------------------------------------------------------------------------------
4    CITIZENSHIP OR PLACE OF ORGANIZATION
     United States
--------------------------------------------------------------------------------
                           5   SOLE VOTING POWER
                               381,550
    NUMBER OF
      SHARES               -----------------------------------------------------
   BENEFICIALLY            6   SHARED VOTING POWER
     OWNED BY                  7,300
      EACH
    REPORTING              -----------------------------------------------------
     PERSON                7   SOLE DISPOSITIVE POWER
      WITH                     381,550
                           -----------------------------------------------------
                           8   SHARED DISPOSITIVE POWER
                               7,300
--------------------------------------------------------------------------------
9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     388,850
--------------------------------------------------------------------------------
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
                                                                            [ ]
     (See Instructions)
--------------------------------------------------------------------------------
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
     1%
--------------------------------------------------------------------------------
12   TYPE OF REPORTING PERSON (See Instructions)
     IN
--------------------------------------------------------------------------------





                                  SCHEDULE 13G

-------------------                                            -----------------
CUSIP NO. 902184100                                            PAGE 4 of 7 PAGES
-------------------                                            -----------------

--------------------------------------------------------------------------------
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)

     David Oates
--------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
                                                                        (a) [ ]
                                                                        (b) [ ]
--------------------------------------------------------------------------------
3    SEC USE ONLY

--------------------------------------------------------------------------------
4    CITIZENSHIP OR PLACE OF ORGANIZATION
     United States
--------------------------------------------------------------------------------
                           5   SOLE VOTING POWER
                               0
    NUMBER OF
      SHARES               -----------------------------------------------------
   BENEFICIALLY            6   SHARED VOTING POWER
     OWNED BY                  0
       EACH
    REPORTING              -----------------------------------------------------
     PERSON                7   SOLE DISPOSITIVE POWER
      WITH                     0

0                           ----------------------------------------------------
                           8   SHARED DISPOSITIVE POWER
                               0
--------------------------------------------------------------------------------
9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     0
--------------------------------------------------------------------------------
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES   [ ]
     (See Instructions)
--------------------------------------------------------------------------------
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
     0%
--------------------------------------------------------------------------------
12   TYPE OF REPORTING PERSON (See Instructions)
     IN
--------------------------------------------------------------------------------





                                  SCHEDULE 13G
-------------------                                            -----------------
CUSIP NO. 902184100                                            PAGE 5 of 7 PAGES
-------------------                                            -----------------

Item 1.

           Item 1(a)       Name of Issuer:
                           Tyler Technologies, Inc., a Delaware corporation (the
                           "Company")

           Item 1(b)       Address of Issuer's Principal Executive Offices:
                           5949 Sherry Lane, Suite 1400, Dallas, Texas 75225

Item 2.

           Item 2(a)       Name of Person Filing:
                           This Schedule 13G Amendment No. 2 is being jointly
                           filed by each of the following persons: (i) William
                           Hunter Oates 1998 Trust (the "Trust"); (ii) John M.
                           Yeaman ("Mr. Yeaman"), an individual, as a co-trustee
                           of the Trust; and (iii) David Oates ("Mr. Oates"), an
                           individual, as a co-trustee of the Trust, to reflect
                           the sale by the Trust of 1,600,000 shares of common
                           stock of the Company to the Company in its "Dutch
                           Auction" tender offer.

           Item 2(b)       Address or principal business office or, if none,
                           residence:
                           Trust:      4900 Lakeside Drive, Dallas, Texas 75205
                           Mr. Yeaman: 4216 Stanhope, Dallas, Texas 75205
                           Mr. Oates:  107 S. Cheryl Drive, Brownfield, Texas
                                       79316

           Item 2(c)       Citizenship:
                           United States

           Item 2(d)       Title of class of securities:
                           Common Stock, $0.01 par value

           Item 2(e)       CUSIP No.:
                           902184100

Item 3.    If this statement is filed pursuant to Rule 13d-1(b) or Rule
           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 Rule
                    13d-1(b)(1)(ii)(E);

           (f)  [ ] An employee benefit plan or endowment fund in accordance
                    with Rule 13d-1(b)(1)(ii)(F);

           (g) [ ]  A parent holding company or control person in accordance
                    with Rule 13d-1(b)(1)(ii)(G);

           (h) [ ]  A savings associations 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);

           (j) [ ]  Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

       If this statement is filed pursuant to Rule 13d-1(c), check this box. [X]





-------------------                                            -----------------
CUSIP NO. 902184100                                            PAGE 6 of 7 PAGES
-------------------                                            -----------------

Item 4.    Ownership.

           Item 4(a)       Amount beneficially owned:   0 shares

           Item 4(b)       Percent of class:   0%

           Item 4(c)       Number of shares as to which the person has:

                           (i)    Sole power to vote or to direct the vote: 0

                           (ii)   Shared power to vote or to direct the vote: 0

                           (iii)  Sole power to dispose or to direct the
                                  disposition of:  0

                           (iv)   Shared power to dispose or to direct the
                                  disposition of:  0

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 5 percent of the class of securities, check the
           following [X]

Item 6.    Ownership of More than Five Percent on Behalf of Another Person.
           Not Applicable.

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.

Item 9.    Notice of Dissolution of a Group.
           Not Applicable.

Item 10.   Certifications.

           Item 10(a)      Not Applicable.

           Item 10(b)      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.





-------------------                                            -----------------
CUSIP NO. 902184100                                            PAGE 7 of 7 PAGES
-------------------                                            -----------------

Signature

         After reasonable inquiry and to the best of the undersigned's knowledge
and belief, the undersigned certifies that the information set forth in this
Filing is true, complete and correct.



June 11, 2003                          WILLIAM HUNTER OATES 1998 TRUST


                                       /s/ John M. Yeaman
                                       ----------------------------------------
                                       JOHN M. YEAMAN, AS CO-TRUSTEE



                                       /s/ David Oates
                                       ----------------------------------------
                                       DAVID OATES, AS CO-TRUSTEE