CATIA stands for Computer Aided Three dimensional Interactive Application. The first release of CATIA was back in 1977 by Dassault Systemes, who still maintain and develop the software.This tool is used in the design of various objects such as vehicles, buildings, components, etc. It is similar in use to Autocad, NX , Pro-E (Wildfire), and many others.
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Fusion 360 is the first 3D CAD, CAM, and CAE tool of its kind. It connects your entire product development process in a single cloud-based platform that works on both Mac and PC. Design, test, and fabricate in a single tool.Since the parts are shared and accessed from the cloud, version control of the data is maintained automatically. Cloud based CAD/CAM systems are best suited to collaboration.
CATIA is a multi-platform software suite for computer-aided design (CAD), computer-aided manufacturing (CAM), computer-aided engineering (CAE), PLM and 3D.CATIA is used majorly for surface modeling like automobile & aircraft industries. Although CATIA is capable of 3D modeling, it is a little difficult to use & hence people don't really use it for part design.