XMI24 — Section B6

I think it would be helpful if uuids were limited to valid
URIs. An href is typed as xsd:anyURI, so if a uuid is a URI
it is straightforward to use in an href. If the uuid is not
a URI the href is more complex, probably requiring the
document URL, which, given an id must also be present, would
make the uuid pointless. (This comment applies for uuids
in general. In JDeveloper we've taken uuids to be URIs.)

Additionally, it is impossible for an importing tool to ensure
arbitrary string uuids generated by different exporting tools
are unique. A standard URI scheme gives some hope that if two
uuids are the same, they are the same object.

Requiring that UUIDs be URIs would be a drastic change beyond the powers of an
RTF. Also, such a change would break almost any existing tool implementation and
is therefore discouraged.
Disposition: Closed – No Change