Adopts ISO/IEC 21000-5:2004 which defines an authorization model to specify whether the semantics of a set of Rights Expression permit a given Principal to perform a given Right upon a given optional Resource during a given time interval based on a given authorization context and a given trust root.
AS ISO IEC 21000.5-2004
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Information technology – Multimedia framework (MPEG-21), Part 5: Rights Expression Language
Standards Australia , 01/01/2004
Pages: 121
