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,[11] Volkswagen, Bentley Motors Limited, Volvo, Fiat, Benteler AG, PSA Peugeot Citroën, Renault, Toyota, Ford,

Scania, Hyundai, Å 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.