author={Patrick Bader and Alexandra Voit and Huy Viet Le and Paweł W. Woźniak and Niels Henze and Albrecht Schmidt},
  journal={ACM Transactions on Computer-Human Interaction (TOCHI)},
  pages={1 - 42}
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… 
5 Citations
Exploring a Textile-based Shadow Lamp Display Incorporating Shape Memory Alloys
A novel concept of textile-based shadow displays that incorporates shape memory alloys (SMA) on fabrics to cast dynamic shadows as an ambient information display that does not only provide the potential for a variety of use cases, but also feels like a decorative addition to the living spaces, as well as creating relaxing channels of information display.
Understanding the Experiences of Remote Workers: Opportunities for Ambient Workspaces at Home
This study addresses wellbeing challenges of the domestic workplaces, establishes correlations between mood and physical aspects, and discusses the impact of feedback mechanisms in the domestic workplace on the behavior of remote workers.
User Preferences of Voice Controlled Smart Light Systems
Investigation of the user preferences in using a VUIs for controlling a smart lighting system indicates that the usage frequency drops after the first days and that users tend to use the system mainly once in the evening.
”I don’t know how to protect myself”: Understanding Privacy Perceptions Resulting from the Presence of Bystanders in Smart Environments
Demand for scalable solutions that address the tension that arises between the increasing discreetness of IoT devices, their increase in numbers and the requirement to preserve the self-determination of owners and bystanders at the same time are shown.
Light-In-Light-Out (Li-Lo) Displays: Harvesting and Manipulating Light to Provide Novel Forms of Communication
Many of us daily encounter shadow and reflected light patterns alongside macro-level changes in ambient light levels. These are caused by elements—opaque objects, glass, mirrors, even clouds—in our


Dynamically transparent window
Evaluation of Dynamically Transparent Windows installed during a five weeks period in the facade of a major department store on a busy high street points to a number of challenges concerning 1) Interaction issues related to the movement vector of pedestrians, 2) Behaviour and attention issues, and 3) Issues pertaining to the diversity of the situations and external conditions in the high street setting.
Squama: modular visibility control of walls and windows for programmable physical architectures
How in future, architectural space can become dynamically changeable is discussed and the Squama system is introduced as an initial instance for exemplifying this concept.
Over the rainbow: information design for low-resolution urban displays
This paper focuses on the issue of information design for media façades, and links the broad notions of 'content' and 'meaning' to a set of purpose-driven and actionable parameters, inviting designers to scrutinize the low-level communication processes facilitated by media architecture.
The swisshouse: an inhabitable interface for connecting nations
The Swisshouse is presented, a novel type of "inhabitable interface" that supports direct and indirect communication and cultural awareness of habitants in different nations and provides awareness of the culture, presence and identities of virtual participants.
Exploring the augmented home window: user perceptions of the concept
The detailed findings reveal that contextual relevance of the content is highly important in the augmented home window, and that pragmatic use cases were valued, whereas social features were less appreciated.
Exploring Interactions with Smart Windows for Sunlight Control
This paper provides both a mid-air gesture set and a smartphone interface to define regions for glare protection and brightness control and conducts an elicitation study with 16 potential users.
Interaction design with building facades
Early studies with electronically activated variable transmission materials (e.g., electrochromic glasses and PDLC films) for the design of interactive, programmable building facades that exercise environmentally and socially sustainable building behaviors are discussed.
Revealing the architectural quality of media architecture
Which design qualities support the architectural relevance of media architecture relates to its ability to coexist with physical characteristics of architecture; augment space; respond to contextual changes; and communicate content that is relevant for the architectural situation.
Posture Sleeve: Using Smart Textiles for Public Display Interactions
This paper explores how smart fabric can detect the user's posture and how this can be used for interacting with public displays and shows that smart textiles are suitable to detect arm postures and feasible for this type of application scenarios.
Looking glass: a field study on noticing interactivity of a shop window
An interactive installation is designed that uses visual feedback to the incidental movements of passers-by to communicate its interactivity and reveals mirrored user silhouettes and images are more effective than avatar-like representations.