While the design by the 20th century lived people's life rich, it also produced many negative legacies. In order to solve these problems produced by subdivision of a design, the new viewpoint for the integration of each subdivided design is required. Firstly, this paper summarizes the context of conventional design which results in subdivision of a design. Secondly, this paper describes the framework for design science as the new viewpoint for the integration of each subdivided design. Moreover, this paper describes the multispace design model as the framework of design theory and design reasoning. Finally, this paper introduces the study on the integration of design based on the framework for design science and the view of the design in the 21st century.

抄録全体を表示