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Computer Aided Industrial Design (CAID) is a subset of "computer-aided design (CAD) software that can assist in creating the look-and-feel, or industrial design aspects of a product in development.
CAID programs tend to provide designers with improved freedom of creativity compared to typical CAD tools. However a typical workflow may follow a simple design methodology as follows:
The end result is generally a 3D model that represents the main intent of the designer had in mind for the physical product. Such models can then be saved in formats for more convenient exchange with others (such as "OBJ for virtual viewing in 3D graphics programs) or manufacturing (such a "STL to create a real-life model via a "rapid prototyping machine). CAID helps the designer focus on the technical aspect of the design methodology rather than the sketching and modelling aspects, contributing to the selection of a better product proposal in less time. When product pre-requisites and parameters have been more completely defined, output from the CAID software can be imported into a CAD program for pre-production testing, adjustment, and generation of technical drawings and manufacturing data such as CNC tool-paths.
CAID is far more conceptual and less technically focused than CAD. CAID programs tend to offer more tools that allow a designer to freely express themselves with more organic shapes and complex curves, whilst CAD software tends to be more focused on tools for the simple curves and straight lines more suitable for easy manufacturing.
CAD implementations have evolved dramatically since initial 3D offerings in the 1970s, which were typically limited to producing drawings similar to hand-drafted output. Advances in programming and computer hardware, notably solid modelling in the 1980s, have allowed more versatile applications of computers in design activities.