Press Release

Dassault Systemes Announces Share Repurchase Plan

PARIS--(BUSINESS WIRE)--Oct. 3, 2001--Dassault Systemes (DS) (Nasdaq:DASTY; Euronext Paris: #13065, DSY.PA), a worldwide leading software developer of product lifecycle management (PLM) solutions, today announced that its Board of Directors approved a plan to repurchase up to 1,000,000 shares of the Company's outstanding common stock.

The timing of purchases and the exact number of shares to be purchased will depend on market conditions. The share repurchase program does not include specific price targets or timetables and may be suspended at any time. Depending on financial and market conditions, the program could be terminated prior to completion.

ABOUT DASSAULT SYSTEMES

Dassault Systemes (Nasdaq: DASTY; Euronext Paris: #13065, DSY.PA) is the premier global software developer for the CAD/CAM/CAE/PLM market, providing companies with e-business solutions to implement their digital enterprise, thus creating and simulating the entire product life cycle from initial concept to product in service. CATIA, ENOVIA and DELMIA solutions support industry-specific business processes to help unleash creativity and innovation, reduce development cycle time, improve quality, competitiveness and shareholder value: CATIA supports the digital product definition and simulation, DELMIA provides solutions to define and simulate lean digital manufacturing processes and ENOVIA delivers enterprise solutions that manage a comprehensive, collaborative and distributed model of the digital product, processes and resources. The combined integration creates the Digital Product life cycle Pipeline, supporting reuse of corporate knowledge. SolidWorks and SmarTeam, as Dassault Systemes companies, offer respectively 3D design-centric and TeamPDM software solutions based on Windows. Spatial, also part of Dassault Systemes family, is a market-leading provider of world-class 3D software components and services (for 3D modeling, visualization, and interoperability) to meet the requirements of 3D in Internet-based e-commerce and B2B applications. Information about Dassault Systemes is available at http://www.dsweb.com.

 FOR: Dassault Systemes
Thibault de Tersant, 33.1.40.99.40.04
Executive Vice President, Finance and Administration
or
Didier Gaillot, 33.1.40.99.44.20
Corporate Finance
or
Morgen-Walke Associates, Inc.
Michele Katz/Michael Polyviou
Press: Brian Maddox
212/850-5600
or
Morgen-Walke Europe S.A.
Jean-Benoit Roquette/Ronald Dassa
Nelly Dimey/Lorie Lichtlen
33.1.47.03.68.10