CAD, the shortetning for Computer-aided design, is deployed for designing real and virtual objects. CAD often involves more than just shapes. The output of CAD commonly must also comprise symbolic information, for example processes, dimensions and tolerances in accordance with conventions of an application.
CAD can be deployed to design curves and figures in two-dimensional (2D) space, and curves, surfaces and solids in 3-dimensional (3D) space.
Computer-aided design is effectively used in a great many applications, including automotive, ship-building and aerospace industries, industrial and architectural design, prosthetics and others. CAD is also widely used to produce computer animation for special effects in films, commercials and technical instruction books. Computer-aided design is used for designing tools and apparatus and for drafting and designing all kinds of architectural structures, from small houses to the largest commercial and industrial structures, for example hospitals and factories. CAD is chiefly deployed for detailed engineering of 3D models and 2D drawings of physical components, but it is also deployed in the engineering process. People that work in this sphere are called designers, CAD Monkeys, Automotive design Engineers and Digital Innovation Engineers. Computer-aided design is also a common work activity for the traditional engineering professions.
CAD has grown into an extremely significant technology among computer-aided technologies, since it saves both time and money.
In the late Eighties when the Computer-Aided Design programs became readily available, there started massive layoffs in drawing departments of small and mid-size companies. A CAD operator could replace three-five drafters using traditional techniques. Furthermore, a great many engineers began to do their own drawing projects, thus the need for traditional drawing departments vanished. As a result of, a large number of people were made redundant.
Since the new technologies were high-priced, only large businesses could afford them. Hence, small businesses were unable to compete against giant companies that widely deployed CAD. At present, prices are much lower. Even high-end software packages need less expensive platforms and some even support multiple platforms.
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