Washington, D.C. 20549

                                    FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER

                      PURSUANT TO RULE 13a-16 OR 15d-16 OF
                       THE SECURITIES EXCHANGE ACT OF 1934

                      Report on Form 6-K dated May 25, 2004

                           Commission File No. 0-28578

                             DASSAULT SYSTEMES S.A.
                              (Name of Registrant)

         9, Quai Marcel Dassault, B.P. 310, 92156 Suresnes Cedex, France
                    (Address of Principal Executive Offices)

     Indicate by check mark whether the registrant files or will file annual
                 reports under cover of Form 20-F or Form 40-F

                         Form 20-F  X       Form 40-F
                                   ---                ---

     Indicate by check mark if the registrant is submitting the Form 6-K in
              paper as permitted by Regulation S-T Rule 101(b)(1):

                               Yes          No  X
                                   ---         ---

     Indicate by check mark if the registrant is submitting the Form 6-K in
              paper as permitted by Regulation S-T Rule 101(b)(7):

                               Yes          No  X
                                   ---         ---

    Indicate by check mark whether by furnishing the information contained in
     this Form, the registrant is also thereby furnishing the information to
               the Commission pursuant to Rule 12g3-2(b) under the
                        Securities Exchange Act of 1934:

                               Yes          No  X
                                   ---         ---

  If "Yes" is marked, indicate below the file number assigned to the registrant
               in connection with Rule 12g3-2(b): 82-___________


 Dassault Systemes S.A. (the "Company") is furnishing under cover of Form 6-K a
    press release dated May 25, 2004, announcing that Tata Technologies, IBM
     and the Company have joined forces to meet the growing demand for PLM
                               solutions in India.

                  Tata Technologies, IBM and Dassault Systemes
          Join Forces to Meet Growing Demand for PLM Solutions in India

Objective: deliver solutions and services to help Indian manufacturers
streamline production processes

Mumbai, India and Paris, France - May 25, 2004 - IBM and Dassault Systemes
(Nasdaq: DASTY; Euronext Paris: #13065, DSY.PA) today announced an agreement
with Tata Technologies Limited, India's leading provider of engineering and
design services to the automotive and aerospace industries, to expand marketing,
sales, and services of their Product Lifecycle Management (PLM) solutions. Under
the terms of the agreement, Tata Technologies becomes an IBM Business Partner
and a Dassault Systemes Services Provider and Education Partner.

With support and certification from Dassault Systemes, Tata Technologies will
create a PLM Competency Center to provide demonstrations, training, technical
support, and software application customization of IBM PLM Solutions.

IBM PLM Solutions, comprised of CATIA, ENOVIA and SMARTEAM collaborative product
development and data management applications developed by Dassault Systemes,
help manufacturers of all types innovate, improve product quality, and reduce
both costs and product development times. They also help companies collaborate
internally, across geographic boundaries and with suppliers.

As an IBM Business Partner, Tata Technologies will sell and support IBM PLM
Solutions to manufacturers throughout India, including Tata Motors and its

Tata Technologies will play a key role in transforming the existing
manufacturing platform of Tata Technologies' sister company Tata Motors to a
collaborative 3D development environment using IBM PLM Solutions that will link
all of the company's product, process and resource data, as well as its
development and manufacturing teams.

"As the largest user of CATIA in India, this agreement gives Tata Technologies
deep access to Dassault Systemes technologies and internals to allow us to
provide our customers the most appropriate, advanced and cost effective
solutions to meet their increased engineering needs," said Patrick McGoldrick,
Managing Director, Tata Technologies. "Our customers are looking to obtain
significant savings in time to market by adopting CATIA V5, PLM and
knowledge-based engineering."

"Our global customers now have a benchmark by which they can assure themselves
of the quality of our engineering and design services," said Jeff Sage, Chief
Operating Officer, Tata Technologies. "India's economy is booming and this
agreement is an important landmark in our efforts to respond to growing customer
demand with the world's most advanced PLM software solutions, best practices,
and consulting services."

"By teaming with Tata Technologies, we now give our clients in India, including
Tata Motors and its suppliers, greater access to IBM's extensive experience and
leadership in implementing integrated PLM solutions," said Raoul van
Engelshoven, vice president, IBM Product Lifecycle Management, Asia Pacific.

"Joining forces with India's leading engineering and design services company
exemplifies IBM's commitment to delivering world-class solutions and services to
all of our global markets. Together, we will help manufacturers in India drive
productivity and efficiency and ultimately improve their competitive positioning
in the global marketplace," van Engelshoven continued.

"With this strategic agreement, Tata Technologies can offer companies in India
the competitive advantage gained using our PLM solutions," said Francis Bernard,
Advisor to the President, Dassault Systemes. "Through our Version 5 (V5)
Development Service Provider agreement, Dassault Systemes will assist Tata
Technologies to fulfill its software customization service activity based on our
V5 architecture."


About Tata Technologies Limited
Tata Technologies Limited is India's leader in providing Engineering and Design
(E&D) services to the world's largest automotive and aerospace companies. Tata
Technologies creates value for its customers by combining state-of-the-art
technologies with a real-world understanding of engineering and manufacturing
processes, to bring down costs and reduce time to market. Tata Technologies'
1500 engineers and consultants work at customer sites globally or offshore at
the Centre for Advanced Engineering & Design (CAE&D), at the Pune InfoTech Park.
The company is headquartered in Pune, India with offices in US, Europe and Asia
Pacific. For Tata Technologies on the web, visit

About IBM
IBM is the world's largest technological company, providing leadership and
innovation throughout the world for more than 80 years. IBM is the largest
supplier of "hardware", "software" and Information Technology services, and
pioneered the development and implementation of "e-business" solutions. IBM
Sales & Distribution, which supports more than a dozen key industries worldwide,
works with companies of all sizes around the world to deploy the full range of
IBM technologies. The fastest way to get more information about IBM is through
the IBM home page at

About Dassault Systemes
As world leader in PLM (Product Lifecycle Management) solutions, the Dassault
Systemes Group brings value to more than 70,000 customers in 80 countries. A
pioneer in the 3D software market since 1981, Dassault Systemes develops and
markets PLM application software and services that support industrial processes
and provide a 3D vision of the entire life cycle of products from conception to
maintenance. Its offering includes integrated PLM solutions for product
development (CATIA(R), ENOVIA(R), DELMIA(R), SMARTEAM(R)), general-use 3D
solutions (SolidWorks), and 3D components (ACIS(R)) from Spatial Corp. Dassault
Systemes is listed on the Nasdaq (DASTY) and Euronext Paris (#13065, DSY.PA)
stock exchanges. For more information, visit

Tata Technologies Press  IBM India Press Contact:  IBM Press Contact:        Dassault Systemes Press      Dassault Systemes Investor
Contact:                 Sukanya Ghosh             Jennifer Feller           Contact:                     Contacts:
B. Sidharata             +91-98450 33297           +33 1 41 88 61 89         Anthony Marechal             Emma Rutherford, Harriet
+91-98500 00406                              +33 1 55 49 84 21            Keen
                                                                      Financial Dynamics
                                                                                                          +44 207 831 3113


     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                              DASSAULT SYSTEMES S.A.

     Date: May 25, 2004                       By:     /s/ Thibault de Tersant
                                              Name:   Thibault de Tersant
                                              Title:  Executive Vice President,
                                                      Finance and Administration