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Lecture Notes in Computer Science
The term usage control (UCON) is a generalization of access control to cover obligations, conditions, continuity (ongoing controls) and mutability. Traditionally, access control has dealt only with authorization decisions on a subject's access to target resources. Obligations are requirements that have to be fulfilled by the subject for allowing access. Conditions are subject and object-independent environmental requirements that have to be satisfied for access. In today's highly dynamic,doi:10.1007/978-3-540-45215-7_2 fatcat:gapcvcwwmjgjfhefe7g27pvocu