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                                                                   EXHIBIT 10.30

                    AMENDMENT TO SOFTWARE LICENSE AGREEMENT
                         AND SOFTWARE SUPPORT AGREEMENT

THIS AGREEMENT (the "Amendment"), is made as of June 4, 1999, (the "Effective
Date") by and between JDA SOFTWARE, INC., an Arizona Corporation ("JDA") and
WEISS & NEUMAN, a Missouri corporation ("Licensee").

                                    RECITALS

A.         JDA and Licensee have previously entered into a Software License
           Agreement, dated June 3, 1999 (the "License Agreement").

B.         JDA and Licensee have previously entered into a Software Support
           Agreement, dated June 3, 1999 (the "Support Agreement").

C.         JDA and Licensee now desire to amend the License Agreement to provide
           Licensee with additional software products on similar terms as the
           software products licensed to Licensee in the License Agreement and
           to amend the Support Agreement to provide Licensee with maintenance
           for the additional software products which will be licensed.

NOW, THEREFORE, in consideration of the foregoing recitals, the execution of the
License Agreement and Support Agreement, and for other good and valuable
consideration, the receipt and sufficiency of which is hereby acknowledged, the
parties agree:

                                   AGREEMENT

I.         The License Agreement is amended as follows:

                  A.    SECTION 1.1  "Documentation" shall include the
                        Documentation set forth on Exhibit A-1 herein;

                  B.    SECTION 1.3  "Standard Software" and SECTION 1.4,
                        "Module" shall include the modules of Software described
                        on Exhibit A-1. ("Additional Modules")

                  C.    EXCLUSIONS.  Section 6.1 shall not apply to the
                        Additional Modules.

                  D.    ADDITIONAL MODULE FEES.  Licensee shall pay to JDA
                        Additional Modules Fees in the amount of $324,750.00,
                        plus tax, for use of the Additional Modules for
                        Licensee's internal information processing at the number
                        of users indicated on Exhibit A-1. The Additional
                        Modules Fees shall be due and payable as follows:

                          (a)     Fifty percent (50%) of the Additional Modules
                                  Fees, plus tax on the entire Additional
                                  Modules Fees, shall be due and payable on the
                                  Effective Date; and

                          (b)     Fifty percent (50%) of the Additional Module
                                  Fees shall be due and payable fifty (50) days
                                  after the Effective Date.

II.              The Support Agreement is amended as follows:

                  A.    THE EXHIBIT A shall be amended to include Additional
                        Modules.

                  B.    SECTION 3.1 shall be amended to provide that Licensee
                        will pay to JDA in advance on the first day of each year
                        the Additional Modules Service Fee, commencing thirty
                        (30) days from the Effective Date of this Amendment and
                        continuing on the first day of each year thereafter. The
                        "Additional Modules Service Fee" will mean (a) for each
                        year of the first thirty-six (36) months for which the
                        Additional Modules  Service Fee is payable, an amount
                        equal to twenty percent (20%) multiplied by the Fee paid
                        for the license of the Additional Modules, and (b)
                        during each successive twelve (12) month period (or
                        portion thereof) of this Amendment, the Additional
                        Modules Service Fee will be the Additional Modules
                        Service Fee




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                  increased by no more than five (5%) percent. Nothing in this
                  Agreement will prohibit increases in the Additional Modules
                  Service Fee as a result of Licensee's future licenses of
                  additional software. Nothing in this paragraph will affect the
                  Service Fees paid by Licensee under the Support Agreement.

III.     Capitalized terms used herein and not defined herein shall have their
         respective meanings assigned to them in the License Agreement and
         Support Agreement.

IV.      The License Agreement and the Support Agreement, as amended by this
         Amendment, shall remain in full force and effect following the
         execution and delivery of this Amendment. All terms not modified herein
         shall apply to the Additional Modules as if such were licensed in the
         License Agreement. This Amendment may be executed in one or more
         counterparts, each of which shall be deemed an original and all of
         which together shall constitute one and the same agreement. This
         Amendment shall be governed by and construed under and pursuant to the
         laws of the State of Arizona, without regard to its principles of
         conflicts of laws.

V.       In the event of a conflict between the terms and conditions of this
         Amendment and the terms and conditions of the License Agreement, or
         Support Agreement, the terms and conditions of this Amendment shall
         control.

IN WITNESS WHEREOF, the Parties hereto have executed and delivered this
Amendment, and it shall be effective, as of the Effective date.

WEISS & NEUMAN                               JDA SOFTWARE, INC.



Signature /s/ Lawrence L. Spanley Jr.        Signature /s/ James D. Armstrong
          ---------------------------                  ----------------------

Name    Lawrence L. Spanley Jr.              Name   James D. Armstrong
    ---------------------------------             ---------------------------

Title   Vice President -- Finance            Title Co-Chief Executive Officer
      -------------------------------              --------------------------

Date    6/7/99                               Date
     --------------------------------             ---------------------------



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   [Exhibit A-1 Additional Modules, omitted. The Registrant undertakes to
    furnish supplementally a copy of such omitted exhibit to the Commission
    upon request.]