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Use of UUIDs in II.extension
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There are two views about whether it is appropriate to send a UUID (GUID) in the II.extension property:
1. It's perfectly ok. The II.root represents the assigning athority which provides semantic context for the UUID issued.
2. It's not terribly appropriate and meaningless. The II.root is not intended to convey semantics, merely ensure uniqueness. UUIDs are already globally unique, so having a separate root is just extra overhead. All semantics are conveyed by other RIM attributes (e.g. Role.classCode, Role.code, Role.scoper, Act.clasCode, Act.code, Act.moodCode
So: which is it?
