Exhibit 10.25

                        Digital Descriptor Systems, Inc.
                                       and
                     Information Technology Solutions, Inc.
                             JOINT VENTURE AGREEMENT
                               September 16, 1996

This letter of intent outlines the terms and conditions for creating a strategic
joint venture relationship between Digital Descriptor Systems, Inc. ("DDSI") and
I/tx information technology solutions, Inc. ("I/tx").

1.   Business Intent

The business intent is to combine the system  integration  expertise and product
development  efforts of I/tx with the marketing  and sales  strengths of DDSI to
create and deliver new  products  and  services  on an  exclusive  basis for the
public sector.

2.   Commitments

          (a) I/tx will provide its I/tx products,  both currently available and
     as developed, from time to time.

          (b)  I/tx  will  provide  ongoing  product   development  and  systems
     integration services.

          (c) I/tx will include all revenues generated via its relationship with
     ET Software, Inc. into this joint venture.

          (d) Any additional sales and marketing support services over and above
     that of the product manager's will be provided at I/tx's normal hourly rate
     (One Hundred Twenty Five Dollars  ($125) per hour),  upon prior approval by
     DDSI.

          (e) DDSI will be responsible for all sales and marketing efforts.

          (f) Upon prior  approval,  DDSI will pay all travel and  out-of-pocket
     expenses incurred during sales and marketing activities, in accordance with
     DDSI's usual travel and accommodation guidelines.

          (g) DDSI will pay I/tx Fifteen Thousand Four Hundred Dollars ($15,400)
     upon  execution of this  agreement  and the same amount  during thirty (30)
     days  thereafter.  These two (2) payments which total Thirty Thousand Eight
     Hundred  Dollars  ($30,800  shall be expanded to provide the  services of a
     full time product  manager  resources for a period of one (1) year from the
     date  hereof.  If  necessary,  as deemed by I/tx,  DDSI shall  advance  Ten
     Thousand Dollars ($10,000) in months three (3), four (4) and five (5) for a
     total of Thirty Thousand Dollars  ($30,000).  This advanced amount shall be
     considered  a debt due to DDSI by I/tx  payable at an interest  rate of one
     percent (1%) over prime until paid in accordance herewith. The debt will be
     repaid  by DDSI  receiving  an  additional  ten  percent  (10%)  of the net
     revenues  produced  by each sale  until the debt and any  accrued  interest
     therein is paid in full.

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          (h) DDSI and I/tx will  mutually  agree upon business  plans,  product
     packaging and pricing  strategies of this joint venture as business markets
     permit.

          (i) DDSI and I/tx  will  honor  mutual  confidentiality  on their  own
     developed software.

3.   Revenue Sharing

          (a) DDSI and I/tx will share  equally in the net revenues  produced by
     each sale.

          (b) The party(ies) providing the installation and support fees will be
     entitled to a fair and equitable distribution of the fees so generated.

          (c) Annual  license  renewal  fees will got the party  developing  and
     supporting the products on the same basis as 3.a above.

4.   Term of Agreement

          (a) The  financial  terms of this  Agreement  will be  reviewed by the
     parties ninety (90) days from even date herewith.

          (b) This Agreement  shall remain in full force and effect for eighteen
     (18) months from date  herewith and shall  remain in effect for  successive
     one (1) year periods unless  canceled by either party upon ninety (90) days
     written notice prior to the expiration of such one (1) year term.

     Through the  signature of this  agreement  DDSI and I/tx agree to the terms
and  conditions  specified  herein  and commit to apply  their  best  efforts to
maximize the results of this joint venture agreement.

Garret U. Cohn (DDSI)                        Robert T. Barnett (I/tx )


/s/ Garrett U. Cohn                          /s/ Robert T. Barnett
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