The course on design for manufacturability includes the proper design of machines and apparatus, the main systems and structures of buildings, and the design of their specialists. Design for manufacturability (also sometimes known as design for manufacturing or DFM) is the general engineering practice of designing products in such a way that they are easy to manufacture. The concept exists in almost all engineering disciplines, but the implementation differs widely depending on the manufacturing technology. Design for manufacturability describes the process of designing or engineering a product in order to facilitate the manufacturing process in order to reduce its manufacturing costs. Design for manufacturability will allow potential problems to be fixed in the design phase which is the least expensive place to address them. Other factors may affect the manufacturability such as the type of raw material, the form of the raw material, dimensional tolerances, and secondary processing such as finishing.