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Bader, Patrick; Voit, Alexandra; Huy Viet, Le; Wozniak, Pawel W.; Henze, Niels and Schmidt, Albrecht (2019): WindowWall: Towards Adaptive Buildings with Interactive Windows as Ubiquitous Displays. In: Acm Transactions on Computer-Human Interaction, Vol. 26, No. 2, 11

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As architects usually decide on the shape and look of windows during the design of buildings, opportunities for interactive windows have not been systematically explored yet. In this work, we extend the vision of sustainable and comfortable adaptive buildings using interactive smart windows. We systematically explore the design space of interactive windows to chart requirements, constraints, and challenges. To that end, we built proof-of-concept prototypes of smart windows with fine-grained control of transparency. In two studies, we explored user attitudes towards interactive windows and elicited control methods. We found that users understand and see potential for interactive windows at home. We provide specific usage contexts and specify interactions that may facilitate domestic applications. Our work illustrates the concept of interactive smart windows and provides insights regarding their design, development, and user controls for adaptive walls. We identify design dimensions and challenges to stimulate further development in the domain of adaptive buildings.

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