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Re: Fwd: I-D ACTION:draft-daigle-uri-std-00.txt

From: John Cowan <jcowan@reutershealth.com>
Date: Thu, 07 Sep 2000 14:49:28 -0400
Message-ID: <39B7E338.6565A487@reutershealth.com>
To: Dan Connolly <connolly@w3.org>, "xml-uri@w3.org" <xml-uri@w3.org>
Dan Connolly wrote:

> Who said they must?

People have talked about "1:1 relationships" between URIs and resources.
The term "1:1" is ambiguous (see my previous posting) but is susceptible
of being interpreted as meaning "bi-unique".

Also, it seems to me that "http://www.reutershealth.com/scritchifchisted"
does not represent a resource, and that I have the authority to say so.
 
> Hmm... if two things are identical, they're identical
> in every possible respect. If unicode.org turned off
> its ftp server and left its http server running one day,
> then you could observe a difference between what
> the two URIs above denote.

Heh heh... that is indeed the case at present, as ftp.unicode.org is broken.
However, the *intent* of the Unicode Consortium is that they are the same
in every respect.

> But perhaps not... perhaps a "connection refused" isn't
> an observation of the resource, but a *failure* to
> observe the resource.

Just so.

> And it's generally not sound
> to conclude anything (including that X!=Y) from
> a lack of information.

That depends.  If there is no discoverable evidence that Wen Lee is guilty
of espionage, then it would be sound to conclude (provisionally) that he is
not a spy.  Or so thought the judge.
 
-- 
There is / one art                   || John Cowan <jcowan@reutershealth.com>
no more / no less                    || http://www.reutershealth.com
to do / all things                   || http://www.ccil.org/~cowan
with art- / lessness                 \\ -- Piet Hein
Received on Thursday, 7 September 2000 14:49:27 GMT

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