CATIA(Computer-Aided Three-Dimensional Interactive Application) is an integrated software package that includes CAD, CAE (Computer-Aided Engineering) and CAM (Computer-Aided Manufacture). CATIA for mechanical engineering is an industry-standard software application used in part designing, assembling construction, mechanism motion, 3D modelling and drawing generation, and for CAD, analysis, and production in other industries. CATIA creates complex parts and assemblies and is used by the automotive, aerospace, consumer goods industries and so many others.