Four phases of the design revolution: Expanding the design domain and developing design theory

Building on a proposed four-phase model of the design revolution, I outline an expanded domain to which design ideas may be applied, and offer a design theory that has general application to the expanded design domain. Numerous disciplines within the domain of design, which have been separately developed, are converging through digital devices and software such as computer-aided design programs. I refer to this “Connection” as the first phase of the design revolution. In the second “Expansion” phase of the design revolution, I expect that the domain where principles of design are applied will be expanded beyond the visual to include all five human senses. The design theory that I propose is a logical application of design principles to various disciplines in the second phase of the revolution. In the third “Application” phase of the design revolution, the design theory will be applied not only to conventional objects of design such as products and services, but also to institutions and systems such as governments, firms, and households. Finally, in the fourth “Integration” phase of the revolution, various parts of the world will be integrated into a holistic system under a single design theory.