CAD (Computer-Aided Design) is a technology that uses computer software to aid in the creation, modification, analysis, and optimization of designs across various industries, including architecture, engineering, and manufacturing. It offers precision and accuracy, enabling highly detailed 3D modeling and drafting, which reduces errors compared to manual methods. CAD facilitates efficient documentation, simulation, and analysis of designs, allowing for testing under various conditions. It enhances collaboration by enabling easy sharing of files among team members, and it often integrates with other software solutions like CAM (Computer-Aided Manufacturing) and BIM (Building Information Modeling), streamlining workflows and improving productivity.