SISCO: providing a cooperation filter for a shared information space

A rationale for the extension of database technology to support collaboration through the provision of awareness information gathering and presentation is presented. The design and implementation of SISCO, a transparent cooperation filter for a multi-user generic object-oriented database is described. By trapping all accesses made to the shared objects, from both cooperation-aware and unaware database clients, awareness information is gathered. By making the filter responsible for the cooperation mechanisms, the underlying database is left unaltered. SISCO-D is based on a desktop-based browser, but is cooperation aware. The shared browser forms a test-bed for the investigation of awareness presentation techniques.

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