O. Hilliges, C. Sandor, G. Klinker A Lightweight Approach for Experimenting with Tangible Interaction Metaphors Proc. of the International Workshop on Multi-user and Ubiquitous User Interfaces (MU3I) 2004, Funchal, Madeira (bib)
	Interaction techniques for Augmented Reality user interfaces (UIs) differ considerably from well explored 2D UIs, be-cause these include new in-/output devices and new inter-action metaphors such as tangible interaction. For experimenting with new devices and metaphors we pro-pose a flexible and lightweight UI framework that supports rapid prototyping of multimodal and collaborative UIs. We use the DWARF 1 framework as foundation. It allows us to build highly dynamic systems enabling the exchange of components at runtime.
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