CATIA (Computer Aided Three-dimensional Interactive Application) is a multi-platform CAD/CAM/CAE commercial software suite developed by the French company Dassault Systemes. Written in the C++ programming language, CATIA is the cornerstone of the Dassault Systemes product lifecycle management software suite.CATIA competes in the CAD/CAM/CAE market with Siemens NX, Pro/ENGINEER, Autodesk Inventor, and SolidEdge as well as many others.

Automotive Many automotive companies use CATIA to varying degrees, including BMW, Porsche, Daimler AG, Chrysler, Honda, Audi,Volkswagen, Bentley Motors Limited, Volvo, Fiat, Benteler AG, PSA Peugeot Citron, Renault, Toyota, Ford, Scania, Hyundai, koda Auto, Tesla Motors, Valmet Automotive, Proton, Tata motors and Mahindra & Mahindra Limited. Goodyear uses it in making tires for automotive and aerospace and also uses a customized CATIA for its design and development. Many automotive companies use CATIA for car structures door beams, IP supports, bumper beams, roof rails, side rails, body components because CATIA is very good in surface creation and Computer representation of surfaces.