SPACE: SPatial Access Control for collaborative virtual Environments
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An Approach To Access Control for Collaborative Virtual Environments
Security is a critical, but usually neglected, aspect of multi-user computer systems. This paper proposes the basis of an approach to access control for collaborative virtual environments. Our approach combines two concepts; i) the clearance-classification model for access control, and ii) the concept of boundaries, as defined within the COMIC project [Bowers 93], which segment space into regio...
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تاریخ انتشار 1999