A computer-aided design orCADtechnician usesCADsystems to create design plans for buildings and machinery. Essentially, aCADtechnician job involves the production of electronic versions of the technical drawings which a draughtsman would previously have created with pen and paper at a drawing board.CAD is the technology concerned with the use of computer systems to assist in the creation, modification, analysis, and optimization of a design.
CAD is used to accomplish preliminary design and layouts, design details and calculations, creating 3-D models, creating and releasing drawings, as well as interfacing with analysis, marketing, manufacturing, and end-user personnel.
CAD facilitates the manufacturing process by transferring detailed information about a product in an automated form that can be universally interpreted by trained personnel. It can be used to produce either two-dimensional or three-dimensional diagrams.