Computer-aided design

Computer-aided design (CAD) is the use of computers to aid in the creation, modification, analysis, or optimization of a design. This 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. Designs made through CAD software help protect products and inventions when used in patent applications.

CAD output is often in the form of electronic files for print, machining, or other manufacturing operations.
The terms computer-aided drafting (CAD) and computer-aided design and drafting (CADD) are also used.

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