ABSTRACT
Interaction design is not computer science, or even human-computer in teraction (HCI), even if it deals with humans, computers, and interaction. Interaction design is not graphic design, even if it is both visual and com municative. Neither is interaction design another computer study like com puter-supported cooperative work (CSCW) or participatory design (PD), nor another design discipline like product design, architecture, or media studies, even if all of these disciplines and practices and many others in the background give shape to interaction design.