TUISTER: a Tangible UI for Hierarchical Structures

Tangible user interfaces provide access to virtual informa- tion through intuitive physical manipulation. However, feed- back is mostly provided by displays in the environment in- stead of the TUI itself. In this paper we describe the design of Tuister, a tangible user interface with multiple embedded displays and sensors. We explain how Tuister can be used to browse and access hierarchical structures and brie°y de- scribe the current state of a prototype we're building.