Computer-Aided Design, or CAD, is a specialized skill that involves using computer software to create technical drawings and models of objects. CAD is commonly used in the world of engineering, architecture, and product design to create and test prototypes, simulate performance, and aid in the manufacturing process. It requires knowledge of computer software, technical drawing, and engineering principles. CAD professionals play an important role in many industries and are in high demand due to their ability to efficiently design and produce complex models.