Dassault Systemes, spun off from Dassault Aviation in 1981, develops product lifecycle management (PLM) software that provides users with a variety of 2D and 3D visualization tools. In 1997, the company organized itself into process-based and design-based software development units. The firm's systems streamline the design, production, and maintenance of industrial products. The company is known for its CATIA product design, ENOVIA and SMARTEAM product management and collaboration, DELMIA digital manufacturing, SPATIAL, and SolidWorks product lines. The firm serves organizations across the aerospace, consumer electronics, computer technology, and automotive sectors. Dassault Systemes acquired IBM's Product Manager technology in 1998, resulting in the development of the ENOVIA application. In 1999, the firm acquired SmarTeam Corporation. In 2000, it acquired Deneb, Safework, and Delta. The acquisitions supported development of the SMARTEAM and DELMIA systems. In 2003, Dassault Systemes also acquired workcell control software developer Athys. The firm works with IBM and other partners worldwide in marketing its products. IBM has been a strategic partner since 1981. Dassault Systemes maintains 107 offices across 22 countries in Europe, the Americas, and Asia. It employs over 4,000 people worldwide. The company holds over 140 patents on its technology. It is based in Suresnes, France. Dassault Systemes was listed on Euronext Paris and NASDAQ in 1996. The company was listed on the CAC 40 index in 2000.