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Subject: Reuters Requirements for DRM

At Simon Blackwell's request, I am forwarding FYI Reuters response to
MPEG-21's call for requirements for their Rights Data Dictionary and
Rights Expression Language.  A key point to note is that the response
describes a number of features to be included in MPEG's rights
expression language that overlap with many of the "differences"
I recently heard Simon list between XACML and DRM.  These include:

fine granularity
the use of rights expressions as policies to drive all manner of enforcement
implementations (e.g., file system access, database access, services such
as CORBA access, etc)
dynamically changing rights (not limited to static objects)
predicating rights of access on complex contextual information

There are many others.  It would be useful to get people's thoughts on
just how close the XACML and MPEG-21 activities are likely to become.

(See attached file: reuters-mpeg21-response-v1.0-public.zip)


_ ______________________________________________________________
Dr David J. Parrott, Chartered Engineer. Chief Technology Office
     Reuters Limited, 85 Fleet Street, London EC4P 4AJ, UK.
   Direct Line: +44 (0)20 7542 9830, Fax: +44 (0)20 7542 8314
       Email: David.Parrott@reuters.com, dparrott@acm.org

        Visit our Internet site at http://www.reuters.com

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