Interaction design is about people: how people relate to people, how people relate to products, and how people relate to each other through the mediating influence of products. It is a synthesis of many traditional and new elements of design thinking, organized into intelligent and emotionally satisfying experiences that meet a wide variety of human needs. Products are no longer treated simply as physical artifacts or visual symbols. Instead, they are expressions and enablers of human action and experience, situated in a social and cultural environment. For many of us, interaction design is more than a new branch of design practice. It is a new approach to design thinking in general, and a foundational critique of the entire field of design and the place of design in culture.
Dick Buchanan (via brianlucid)