We present an architectural model for adaptive interfaces based on eye-gaze patterns and facial expression analysis. In our approach, each basic visual sign can adapt its appearance and level of detail during the communication process. Atomic Communication Units (ACUs) -- analogous to graphical output primitives - encapsulate the intended denotation, the encoding of the message and a method for the judgment of the communication goal. We have analyzed feedback cycles in human-human communication tasks, and propose applications scenarios for ACUs.
['Heimo Müller', 'Fritz Wiesinger']
Modelling "user understanding" in simple communication tasks