Computer Aided Design (CAD) is the use of computer technology for the process of design and design-documentation.
CAD describes the process of drafting or modelling with a computer.
CAD software, or environments, provide the user with input-tools for the purpose of streamlining design processes, drafting, documentation, and manufacturing processes.
CAD output is often in the form of electronic files for print or machining operations.
Computer Aided Design (CAD) environments usually involve 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. The modern ubiquity and power of computers means that even perfume bottles and shampoo dispensers are designed using techniques unheard of by designers just a few decades ago. CAD has been a major driving force for research in computational geometry, computer graphics (both hardware and software), and discrete differential geometry.
CAD is used in almost every industry, in projects as wide-ranging as machinery design, landscape design, bridge construction, office building design, jewellery design, wood working, and even film animation. With 2D or 3D CAD programmes, you can perform a variety of tasks: you can create a 3D model of a design, apply material and light effects and document the design with dimensions and other annotations. With features like point clouds, you can add real-life context to your drawings to create a digital twin or recreate physical objects in your designs.
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