Interaction techniques for Augmented Reality user interfaces (UIs) differ considerably from well explored 2D UIs, because these include new input and output devices and new interaction metaphors such as tangible interaction. For experimenting with new devices and metaphors we propose a flexible and lightweight UI framework that supports rapid prototyping of multimodal and collaborative UIs. We use the DWARF framework
as foundation. It allows us to build highly dynamic systems enabling the exchange of components at runtime.
Our framework is a UI architecture described by a graph of multiple input and output and control components (User Interface Controller UIC).