RE: URI for XML schema and namespace

"Scott Hollenbeck" <sah-ietf@tengwar.com> Fri, 04 January 2008 15:42 UTC

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From: "Scott Hollenbeck" <sah-ietf@tengwar.com>
To: "'tom.petch'" <cfinss@dial.pipex.com>, "'Apps Discuss'" <discuss@apps.ietf.org>
References: <FB2B4EC3-BE66-4192-8657-F318BF9F0329@osafoundation.org> <00a601c84edd$2ca4dcc0$0601a8c0@pc6>
Subject: RE: URI for XML schema and namespace
Date: Fri, 4 Jan 2008 10:42:53 -0500
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> -----Original Message-----
> From: tom.petch [mailto:cfinss@dial.pipex.com] 
> Sent: Friday, January 04, 2008 8:19 AM
> To: Apps Discuss
> Subject: URI for XML schema and namespace
> 
> What is the currently recommended form for a URI for an XML 
> schema and an XML namespace?
> 
> The question has come up on ForCES where I, citing RFC3688 
> say it should be urn:
> whereas the others cite RFC3470 to say that http: is recommended.
> 
> Other opinions welcome.

Those folks looking at 3470 might have missed the third paragraph in section
4.9:

"In the case of namespaces in IETF standards-track documents, it would
be useful if there were some permanent part of the IETF's own web
space that could be used for this purpose.  In lieu of such, other
permanent URIs can be used, e.g., URNs in the IETF URN namespace"

URNs in the IETF namespace seems to be the more common practice in the IETF:

http://www.iana.org/assignments/xml-registry/ns.html

http://www.iana.org/assignments/xml-registry/schema.html

-Scott-