AutoCAD is a CAD (Computer Aided Design or Computer Aided Drafting) Software application for 2D, 3D design and drafting, developed and sold by Autodesk, Inc. AutoCAD is used in Mechanical, Electrical, Civil, Architecture, Production Planning and Control, Tool and Fixture design, Preparation of Assembly Lists and Bills of Materials, Piping, Automotive Design, Bio- Medical Instrumentation Design and Communication Network.