Dassault Systemes Announces Completion of Merger with MatrixOne; MatrixOne Expands DS Product Lifecycle Management to Include Collaborative Business Processes across All Industries

Business Wire, May 11, 2006

About Dassault Systemes

As a world leader in 3D and Product Lifecycle Management (PLM) solutions, the Dassault Systemes group brings value to more than 90,000 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 lifecycle of products from conception to maintenance. The Dassault Systemes portfolio consists of CATIA(R) for designing the virtual product - SolidWorks(R) for 3D mechanical design - DELMIA(R) for virtual production - SIMULIA(TM)for virtual testing and ENOVIA(R) for global collaborative lifecycle management, including ENOVIA VPLM, ENOVIA MatrixOne(R) and ENOVIA SmarTeam(R). Dassault Systemes is listed on the Nasdaq (DASTY) and Euronext Paris (#13065, DSY.PA) stock exchanges. For more information, visit http://www.3ds.com