[urn] Re: General grumble about incorporating other identifi ers into URNs

John C Klensin <[email protected]> writes:
> All of that said, I completely agree with you about revisions/
> updates to existing registrations.   I'm less sure about
> "previously-existing identifier systems" because I am not sure I know
> how to define that precisely enough.  I also wonder whether there is
> another distinction between what might be thought of as ordinary
> updates and updates that are conditioned on standards (or equivalent)
> managed elsewhere, for which ISBN is an example.

You bring up furthr considerations which I haven't thought about.  The
point I was trying to make is that people tend to reflexively think that
because e.g. ISBNs are standardized somewhere, they can define a URN
with syntax containing <put ISBN here> without having to carefully
discern what that means.

Dale

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