Computer-aided design (CAD) is the use of computers (or workstations) 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 are helpful in protecting 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) is also used.
Its use in designing electronic systems is known as electronic design automation (EDA). In mechanical design it is known as mechanical design automation (MDA), which includes the process of creating a technical drawing with the use of computer software.
CAD software for mechanical design uses either vector-based graphics to depict the objects of traditional drafting, or may also produce raster graphics showing the overall appearance of designed objects. However, it involves more than just shapes. As in the manual drafting of technical and engineering drawings, the output of CAD must convey information, such as materials, processes, dimensions, and tolerances, according to application-specific conventions.
CAD may be used to design curves and figures in two-dimensional (2D) space; or curves, surfaces, and solids in three-dimensional (3D) space.: 71, 106
CAD is an important industrial art extensively used in many applications, including automotive, shipbuilding, and aerospace industries, industrial and architectural design, prosthetics, and many more. CAD is also widely used to produce computer animation for special effects in movies, advertising and technical manuals, often called DCC digital content creation. The modern ubiquity and power of computers means that even perfume bottles and shampoo dispensers are designed using techniques unheard of by engineers of the 1960s. Because of its enormous economic importance, CAD has been a major driving force for research in computational geometry, computer graphics (both hardware and software), and discrete differential geometry.
The design of geometric models for object shapes, in particular, is occasionally called computer-aided geometric design (CAGD).
Fakenham is a market town and civil parish in Norfolk, England. It is situated on the River Wensum, about 25 miles (40 kilometres) north west of Norwich. The town is the junction of several local roads, including the A148 from King's Lynn to Cromer, the A1067 to Norwich and the A1065 to Swaffham.
The civil parish has an area of 3.49 sq mi (9.0 km2) and in the 2001 census had a population of 7,357 in 3,292 households, the population increasing to 7,617 at the 2011 census. For the purposes of local government, the parish falls within the district of North Norfolk.
Fakenham has been a market town since 1250, particularly known for its corn, barley and wheat trading, and in the 19th century it became noted for its printing. Fakenham Racecourse is a thoroughbred horse racing venue to the south of Fakenham, of which Charles, Prince of Wales is patron.
The town has a long name of Fakenham Lancaster which derives from the ownership of the manor in 1377 being transferred to John of Gaunt, the Duke of Lancaster. The name continues to be used today, including on recently placed history trail plaques around the town, and also the two wards that cover the town, for the purpose of electing councillors to North Norfolk District Council, are called Lancaster North and Lancaster South.