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RE: Namespace name: better to use URN or URL?

• From: Nicolas LEHUEN <nicolas.lehuen@u...>
• To: "'Roger L. Costello'" <costello@m...>,"'xml-dev@l...'" <xml-dev@l...>
• Date: Thu, 30 Aug 2001 14:55:26 +0200

The BIG advantage of URLs is that it ought to be more difficult to have two
companies spawn two identical namespaces name (is that correct, namespace
name ?).

Regards,
Nicolas

>-----Message d'origine-----
>De : Roger L. Costello [mailto:costello@m...]
>Envoye : jeudi 30 aout 2001 14:22
>A : xml-dev@l...
>Objet : Namespace name: better to use URN or URL?
>
>
>Hi Folks,
>
>Is there any advantage to formulating a namespace name as a URN, vice
>formulating it as a URL?
>
>Example:
>
>    urn:publishing:book
>
>versus
>
>    http://www.publishing.com/book
>
>As I see it, 
>
>- the advantage of formulating a namespace name as a URN is that it's
>easier to conceptualize a URN as a "name" and not a "location". 
>
>- the advantage of formulating a namespace name as a URL is that the
>namespace "could" then have a dual purpose - it could serve both as a
>name and as a location to "something".  I am ashamedly 
>ignorant of RDDL,
>but I vaguely recall reading something about using a namespace URL to
>point to a RDDL document.  Does RDDL enter into this issue?  
>
>My impression is,
>
>A couple years ago there was a general feeling in the XML 
>community that
>URNs were the preferred form for namespace names, but recently there
>seems to be a shift towards preferring URLs.  Do you agree?
>/Roger
>
>
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