Skeu the evolution: Skeuomorphs, style, and the material of tangible interactions

We examine skeuomorphs - holdovers from previous functional material requirements - as they pertain to the design of tangible interactions. We offer several definitions of skeuomorphs from different disciplines, seeking to distinguish among different types and uses to explore skeuomorphs' potential value for designing tangible user interfaces. Through critical analysis of several skeuomorphic designs, both GUI and TUI, we show that skeuomorphs are far from being limited to mere sensual metaphors; some types of interaction can be characterized as skeuomorphic. Finally, we offer three specific ways that skeuomorphic evolution can be present in design, with diverse implications for materiality, user experience, and style.