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Maciej's original proposal involves registering just resource URLs. Eve's proposal involves registering resources and actions (a matrix). Christian's proposal (http://groups.google.com/group/kantara-initiative-uma-wg/browse_frm/thread/7d6af37434d4a3ef/84f5845b3397fccc?lnk=gst&q=scope#84f5845b3397fccc}) involves registering a flat list, which could contain resources or actions or both, but they'd have to be squished together.
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