Tokyo, Japan and Paris, France – July 8, 2004 – Dassault Systиmes (NASDAQ: DASTY; Euronext Paris: #13065, DSY.PA) and Lattice Technology today announced a strategic, long-term partnership whereby Dassault Systиmes will leverage Lattice Technology’s XVL solutions and expertise to create a universal 3D XML (Extensible Markup Language) open format for Product Lifecycle Management (PLM).