uWiki is a wiki-based system that makes it possible to associate multimedia content with d-touch markers. uWiki includes a mobile client running on Symbian S60 devices, written in Python and C++, and a server, based on the open source TikiWiki engine. By scanning a d-touch marker through the mobile client, users can retrieve multimedia content associated to it, and edit or add new material. The system also provides a web-based interface to the same information, to allow richer access through personal computers when available.

uWiki is designed as a platform that can support different applications, from authoring and presentation of interactive tour guides and treasure-hunt style of mobile games, to collaborative marker-based annotations in a wiki-like fashion. Permissions can be set to control which users can add and edit which content, ranging from situations where common users can only view existing content created by system administrators, to ones where they can view existing content and add comments (as in blogs), to situations where anyone can edit anything (as in wikis). Content attached to each marker can be organized in multiple threads, with items being posted as replies to other items (as in a web forum), or a piece of content can be set to automatically play as soon as the marker is scanned.


A functional prototype of uWiki is being used in a number of field trials aimed at observing and understanding how people produce and share content through proximity-based media (such as visual markers and RFID). The first field trial, where a class of architecture students used uWiki to do a collaborative site analysis, took place in May 2009 in Geneva. A second field trial is currently running on EPFL campus.

We are currently looking for other opportunities to run field trials of uWiki in real-world settings and we are looking for collaboration opportunities on this! If you are interested please contact Enrico Costanza directly using <his first name>@d-touch.org.

The development of uWiki was supported by Alok Parlikar and Joël Schintgen, who worked as interns at the EPFL Media and Design Lab in summer 2007 and summer 2008.