In production and operations management, Computer Aided Design (CAD) and Computer Aided Manufacturing (CAM) are two critical technological systems that support the planning, design, and execution of manufacturing activities. They play a central role in improving productivity, quality, flexibility, and competitiveness of modern manufacturing organizations by reducing dependence on manual processes and enabling faster, more accurate decision making. Computer Aided Design refers to the use of computer systems to assist in the creation, modification, analysis, and optimization of product designs. In operations management, CAD is primarily concerned with the design stage of the production system. It allows engineers and designers to develop detailed graphical representations of products, components, and assemblies using specialized software. These designs may be in two-dimensional or three-dimensional form and include precise information about dimensions, tolerances, materials, surface finish, and functional relationships between parts. CAD systems replace traditional drafting methods and provide higher accuracy, better visualization, and easier modification of designs. The use of CAD begins with conceptual design, where basic shapes and configurations are created to meet functional requirements. As the design progresses, CAD tools allow designers to refine geometry, test fit and assembly, and evaluate alternative designs quickly. Advanced CAD systems also support engineering analysis such as stress analysis, thermal analysis, and motion simulation, helping designers to predict product performance before physical prototypes are made. From an operations management perspective, this reduces design errors, minimizes rework, shortens product development cycles, and lowers overall production costs. CAD also supports standardization and modular design, which simplify manufacturing and inventory management. Computer Aided Manufacturing refers to the use of computer-based systems to plan, manage, and control manufacturing operations. CAM focuses on the execution phase of production, where product designs are transformed into finished goods. It involves the use of computers to control machine tools, material handling systems, and production processes. CAM systems generate instructions for machines such as CNC (Computer Numerical Control) machines, robots, and automated assembly systems. These instructions define tool paths, cutting speeds, feed rates, and