Designing a consumer product or a tool, a car, a piece of furniture does not mean just inventing something, but also knowing how to describe its characteristics in functional, physical, technical, aesthetic-formal and image terms, so that its use can be understood and its possible realization and production can be described.Therefore, product design implies a great variety of complementary skills, all equally functional to the development of objects designed for the needs of those who will have to use them, and before, to realize them.