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The eXtensible rights Markup Language ( XrML ) is a universal language for reliable description and management of rights based on the open XML standards.

These rights can be bound to arbitrary objects and a highly granular define the rights of use to the user and group level. The rights defined are summarized in the rule as so-called rights object ( RO) and may be transferred as part of the license in the context of Digital Rights Management (DRM).

XrML grew out of research at Xerox PARC (Palo Alto Research Center). The XrML specification is since November 2001 in the version 2 and is supported by several committees for the definition of DRM implementation uses in their own XML languages ​​(eg OASIS, Open eBook Forum, MPEG -21).