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1 Information Representations for Shared Communication Spaces

In the design of distributed collaborative systems accessed by means of heterogeneous interface devices with different communication bandwidths, the manner in which information is represented in the interface is of fundamental importance. The designer must consider the level of detail and abstraction determined by the physical form factor, the integration of information from other external and communicated information sources (and representations), and the use of represented information in collaborative acts and communications. We examine these concerns with respect to a collaborative route planning and navigation system, and look at the distributed cognition approach as a basis for structured reasoning about information representations in the interface.