Computer-Aided Design (CAD) is a type of software used in maintenance operations and management to create, modify, analyze, and optimize designs. It is used to create detailed 2D and 3D models of components, assemblies, and systems, as well as to generate drawings and other documents. CAD is used to streamline the design process, reduce errors, and improve the accuracy of maintenance operations and management. CAD software can also be used to simulate and analyze the performance of components, assemblies, and systems, as well as to generate reports and other documents. CAD is an essential tool for maintenance operations and management, as it allows for the efficient and accurate design of components, assemblies, and systems.