Computer-Aided Design (CAD)
Computer-Aided Design, commonly referred to as CAD, is the application of computer systems to aid in the creation, modification, analysis, or optimization of a design. This technology is vital for increasing the productivity of designers, improving the quality of design, and creating a database for manufacturing. As noted by Autodesk, CAD software allows for the generation of both 2D drawings and 3D models which can be used for simulation and production.
The history of CAD dates back to 1963 when Ivan Sutherland developed Sketchpad at MIT, which was the first program to use a graphical user interface. Over the decades, the industry saw the rise of powerful software packages such as AutoCAD, SolidWorks, CATIA, and Rhino3D. These tools are now indispensable in fields like Mechanical Engineering, Civil Engineering, and Architecture. Technical details regarding the geometric kernels and algorithms used in these systems are documented extensively on Wikipedia.
Modern CAD systems often integrate with Computer-Aided Engineering (CAE) for stress analysis and Computer-Aided Manufacturing (CAM) for toolpath generation. In the construction industry, CAD has evolved into Building Information Modeling (BIM), which provides a multidimensional representation of physical and functional characteristics of a facility. The transition from manual drafting to Parametric Design has allowed for rapid iteration and complex geometries that were previously impossible to document.