抄録
The relation between languages using in design process and design process is important. Design processes are composed of the process of concept and the process of form. Each process has languages suitable for that process. The design word is languages of the process of concept. The design word is a mirror of the concept. So the design word is equal to the concept. There are three stages of the concept on design processes. Namely they are the stage of finding and researching a new concept, the stage of fixing that consept, and the stage of applying and reproducing that concept. Those stages explain the use patterns on design processes. And they will compose a process model of design. Design process model and design tool should be reconsider from a new viewpoint. Its viewpoint is a degree of relations between designers and them. There are some subjects after this. We should study not only design words but pictures and drawings etc.