Wolfgang Orthuber wrote:
Dan,
can a http URI refer transiently or accidentally to some address?
Of course.
Which term do you suggest for something which permanently refers to a
(unique, permanent) web address, and which differs if and only if the
web address differs?
A URI that carries location/address specificity or dependency
(transiently or accidentally).
An Identifier with endowed location specificity (overtly or covertly)
isn't optimal, but that doesn't stop it being an identifier.
A URL is a Web Address based Identifier -- a URI :-)
Kingsley
Wolfgang
----- Original Message ----- From: "Dan Brickley" <[email protected]>
To: "Wolfgang Orthuber" <[email protected]>
Cc: "semantic-web" <[email protected]>; "Linked Data community"
<[email protected]>
Sent: Tuesday, May 26, 2009 1:31 PM
Subject: Re: numeric web search (Was: URLs instead of URNs)
On 26/5/09 15:17, Wolfgang Orthuber wrote:
Dan,
in http://www.w3.org/TR/uri-clarification/ I read "An http URI is a
URL"
. So I concluded that a different http URI is a different URL
(address).
At this I assumed, that all http URIs which refer to the same address
(case insensitive), are defined as "identical". Is this correct?
I'd rather they'd have said "URL" is a technically obsolete but
common colloquial term for http and http-like URIs. Identity of
identifiers is tricky because you have to try to distinguish between
identifiers which accidentally of transiently refer to the same
thing, versus those where it is built-in to the definition of the
scheme (eg. the port 80 and domain name canonicalisation rules).
Dan
--
Regards,
Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO
OpenLink Software Web: http://www.openlinksw.com
