Designing digital interfaces for physical environments with ubiquitous displays and sensing introduces a new set of human-computer interaction challenges. Physical objects, digital interfaces, and multi-person human activity must be simultaneously considered. We are building and testing physical components for an interactive environment that merges the physical space and the digital interface. We have identified three types of expectations of constraints that users bring to the new environment: architecturalconstraints, device-level constraints, and widget-level constraints.
Ubiquitous computing, interactive environments, architecture.