Abstract In this chapter, we address the perspectives on design, concept generation, and creativity. First, we overview the previous research on concept generation, which is at the very early stage of design, by focusing on interdisciplinarity and creativity. Next, we classify concept generation into two phases—the problem–driven phase and inner sense–driven phase—according to the following two factors: the basis of concept generation and ability which enables the concept generation to proceed. Further, we define concept generation and creativity as follows: concept generation is the process of composing a desirable concept towards the future, and design creativity is the degree to which an ideal is conceptualized.