Both are product development, manufacturing, production of the necessary process ID refers to (IndustryDesign) industrial design, for different industries and different, ICSID definition of industrial design as: in terms of mass-produced industrial products, by virtue of training, technical knowledge, experience, visual and psychological perception, and give the product material, structure, construction, form, color, surface processing, decoration to new qualities and specifications. In the country can be simply understood as product design, but this is a narrow understanding of the MD refers to (MechanicalDesign) structural design, such as cell phone molding, product molding, as well as internal stress, material resistance to tensile and compressive and so on, which is mainly by the engineering considerations. However, product design, R&D and manufacturing all need to consider each other comprehensively. This is a huge project~