Dusk: Adaption and Perception in Interactive Theatre.

Our case study explores how interactive systems may influence and enhance theatre performances. We pro-duced a short play featuring four interactive systems. Using a mixed-method evaluation approach we strive to answer two main research questions: How do users (actors and directors) adapt to the technology, and how do spectators perceive interactive scenes? We found the success of using interactive systems in theater to be based mainly on how interaction is conceptualized in reference to the script. Adaptions are done on both sides -- system and user need to \"understand\" each other, and the audience's perception is not necessarily characterized by recognizing interactivity per se but ra-ther by experiencing it in a theatre play as a whole.