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Publications

2002
The WebWall
Proceedings of the Ubicomp 2002 Workshop on Collaboration with Interactive Walls and Tables, Göteborg, Sweden, September 2002.
Projects: WebWall
Abstract: A media and service independent framework for multi-user communication and interaction via public communication displays, WebWalls, has been developed to allow for a seamless WWW access for people in public areas via mobile phones or handheld devices. A software architecture is presented strictly separating wall access technologies (like HTTP, email, SMS, WAP, EMS, MMS or even simple paging protocols found on mobile phones) from the display technologies used and the presentation logic involved. The architecture integrates the most common and first truly ubiquitous wireless network (GSM), allowing a vast community of mobile phone users to access the WWW via public communication displays in an ad-hoc mode. A centralized backend infrastructure hosting content posted by users in a display independent format has been developed together with rendering engines exploiting the particular features of the respective physical output devices installed in public areas like airports, trainstations, public buildings, lecture halls, fun and leisure centres and even car navigation systems. A variety of different modular service classes has been developed to support the posting or pulling of WWW media elements ranging from simple sticky notes, opinion polls, auctions, image and video galleries to mobile phone controlled web browsing – all of them sharing common features like a defined display time and a set of commands for interaction.