Computer-aided design (CAD) is the use of computer systems to aid 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, and shorten the design cycle. CAD output is often in the form of electronic files that can be printed out or used directly in manufacturing.

CAD is used in a wide variety of industries, including automotive, architecture, engineering, and manufacturing. In automotive design, for example, CAD is used to design the body and interior of a car, as well as the engine and …