Computer-Aided Design (CAD) is the use of computer systems to assist in the creation, modification, analysis, or optimization of a design. CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing. CAD has been implemented in many of the fields like in Mechanical Machine Design, in automobile body design, Manufacturing, Aeronautical, Civil etc.
Computer-Aided Drafting (CAD) includes the process of creating a technical drawing with the use of computer software. CAD is an important industrial art extensively used in many applications, including automotive, shipbuilding, and aerospace industries, industrial and architectural design, prosthetics, and many more.