TransWorld: paper world as avatar of electronic world

Today, most of paper documents in offices are just like avatars of electronic documents because such paper documents are computer print-outs of original digital data in office computers. We propose a document management model, called TransWorld which supports integration of the paper world and the electronic world. In the model, users' actions to paper documents are automatically reflected to their original electronic documents observed by desk-mounted scanners and vice versa. An experimental system based on the TransWorld model is also described.