W3C home > Mailing lists > Public > www-rdf-interest@w3.org > February 2001

RE: does RDF require understanding all 82 URI schemes?

From: Jonathan Borden <jborden@mediaone.net>
Date: Mon, 12 Feb 2001 00:20:56 -0500
To: "Sean B. Palmer" <sean@mysterylights.com>
Cc: <www-rdf-interest@w3.org>
Message-ID: <000201c094b3$93b4cb50$0201a8c0@ne.mediaone.net>
Sean B. Palmer wrote:
>
> But aren't http://www.w3.org/2000/10/XMLSchema and
> http://www.w3.org/2000/10/XMLSchema# completely equivalent when
> it comes to
> using them for XML Schema processing?

	No. They are two different namespaces. The namespace rec specifies that
namespace URIs are to be compared as literal strings.

>
> > If RDF has a different notion of namespaces than the rest of XML,
>
> It just has an odd method of using them... but you *cannot*
> restrict people
> to using a few special characters at the end of their RDF namespaces,
> because you could have alphanumeric strings that when concatenated, still
> point to the correct URI representation of a property.
>
> *Rule*: A namespace is any URI allowable in the XML Names specification.
>

	Of course. It is the rule unique to RDF that a qname is converted to a URI
by concatenation of a namespace URI and local name that causes the problem,
and desire to restrict namespace URIs to those ending with '#'. Nowhere else
does one find such URIs.

-Jonathan
Received on Monday, 12 February 2001 00:18:25 GMT

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