Rafale Showcased on the Web Using Interactive Real-time 3D from Dassault Systèmes Dassault Aviation Rafale Exhibition at the Paris Air Show Presented Online Thanks to Dassault Systèmes’ Virtools Solutions

Paris, June 19, 2007 – Dassault Systèmes (DS) (Nasdaq: DASTY; Euronext Paris: #13065, DSY.PA), a world leader in 3D and Product Lifecycle Management (PLM) solutions, today announced that Dassault Aviation is using its Virtools technology to showcase the Rafale Exhibition on its website in real-time 3D. This is a real-time 3D experience shared at: http://www.dassault-aviation.com/rafale3D/Virtools.htm.

The online interactive application allows visitors to preview the different parts of the aircraft demonstration that will be held on a daily basis at the Paris Air Show. Pilot Eric Gérard will be showcasing the latest technical advances of the aircraft and his comments will be retransmitted in the online application. Several views are proposed to visitors for an improved user experience.

"Virtools technology allowed us to recreate the Rafale demonstration in an interactive online application in record time. It provides Dassault Aviation with an innovative communication tool linking the real and virtual worlds, and enables people all over the world to access the Rafale demonstration,” explains Van der Bosh, Dassault Aviation.

“Already intensively using DS’s PLM solutions, Dassault Aviation’s use of Virtools technology to provide new interactive experiences to a wider audience is an important step forward, proving once again that Dassault Aviation is a pioneer in the industry,” says Bertrand Duplat, CTO, Virtools, Dassault Systèmes.Positioning interactive real-time 3D as the communications medium of the 21st century, Virtools is a major component of DS’s ”3D For All” strategy, designed to allow the general public to benefit on a day-to-day basis from the advantages offered by real-time interactive 3D solutions.

Wide-scale deployment of Made-With-Virtools applications is made possible thanks to Virtools deployment solutions - to provide interactive experiences either online, through the corporate intranets/extranets or on immersive displays. The Dassault Aviation Web-based Rafale application benefits from Virtools 3D Life Player’s cutting-edge technology, now compatible with the latest Microsoft Operating System, Windows Vista, as well as the Macintosh Universal format.

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About Dassault Aviation In the past sixty years, Dassault Aviation has delivered more than 7,500 civil and military aircraft to 75 countries, logging some 20 million hours in flight to date. This vast experience has allowed Dassault Aviation to build up considerable expertise in the design, development, production, sales and support military aircraft (for example, Rafale, Mirage, and Atlantic), Falcon Business Jets and Multi-Role Falcon. Dassault Aviation has staked out a solid reputation as industrial architect for complex airborne systems. Several key assets underpin this global success: expertise in emerging and strategic technologies; an in-depth understanding of the customer’s technical, operational and financial requirements; and a comprehensive systems approach to meet cost, deadline and performance goals. Dassault Aviation is one of the largest Military Aircraft European Exporters and is the World Leader for Top End Business Jets. Additional information about Dassault Aviation is available at http://www.dassault-aviation.com.

About Dassault Systèmes As a world leader in 3D and Product Lifecycle Management (PLM) solutions, Dassault Systèmes brings value to more than 100,000 customers in 80 countries. A pioneer in the 3D software market since 1981, Dassault Systèmes develops and markets PLM application software and services that support industrial processes and provide a 3D vision of the entire lifecycle of products from conception to maintenance. The Dassault Systèmes portfolio consists of CATIA for designing the virtual product - SolidWorks for 3D mechanical design - DELMIA for virtual production - SIMULIA for virtual testing and ENOVIA for global collaborative lifecycle management, including ENOVIA VPLM, ENOVIA MatrixOne and ENOVIA SmarTeam. Dassault Systèmes is listed on the Nasdaq (DASTY) and Euronext Paris (#13065, DSY.PA) stock exchanges. For more information, visit http://www.3ds.com

CATIA, DELMIA, ENOVIA, SIMULIA and SolidWorks are registered trademarks of Dassault Systèmes or its subsidiaries in the US and/or other countries.