CAD (Computer Aided Design) refers to the design of products using computer-aided graphics creation.
Like CAQ (Computer Aided Quality), CAD is also part of the CAx technologies, which encompass production-related applied computer science in production. From geometric modelling and simulation over transfer to manufacturing, CAD supports a wide range of activities in the design process.
CAD can be used to create documents for the manufacture of a product - for example assembly plans or technical drawings. In concrete terms, CAD comprises the following three phases: The conception in which requirements are made; the design in which solutions are concretized and the detailing in which parts lists, individual parts and production documents are added. The main advantages of CAD are the great cost and time savings that are achieved by automating the design process and the possibility to modify designs more quickly and less cumbersomely.
CAD systems are used for two-dimensional technical paper drawings; in mechanical engineering, on the other hand, 3D geometry systems are common today, with which the edge, surface and volume models can be represented three-dimensionally.