The ins and outs of collaborative walls
Thomas P. Moran, Eric Saund, William van Melle, Robert Bryll, Anuj U. Gujar, Kenneth P. Fishkin, Beverly L. Harrison · 1999
A collaborage is a collaborative collage of physically represented information on a surface that is connected with electronic information, such as a physical in/out board connected to a people-locator database. The physical surface (board) contains items that are tracked by camera and machine vision technology. Events on the board trigger electronic services. This paper motivates this concept, sketches the system, describes the first application, and presents some design issues.