What is CAID Models

3D digital models are an essential tool that supports every step of the industrial product design process. For example, during the design review step photorealistic models are used as virtual prototypes for aesthetic and ergonomic evaluation of new products, in order to anticipate design evaluation and choices and to shorten the overall process. For this reason, industrial design enterprises usually have special rooms equipped with a projection based large display, for the realistic visualization of digital models. Usually, the interaction with 3D models is still based on mouse and keyboard, even if this kind of input is not fully adequate to the interaction needs concerning such special application. The aim of this chapter is to investigate different interaction techniques and outline their benefits and drawbacks compared to the interaction tasks required in this special field.