W3C home > Mailing lists > Public > www-tag@w3.org > July 2002

Re: TB16 Re: Comments on arch doc draft

From: Paul Prescod <paul@prescod.net>
Date: Wed, 03 Jul 2002 09:06:51 -0700
Message-ID: <3D23211B.2135703A@prescod.net>
To: Patrick Stickler <patrick.stickler@nokia.com>, WWW TAG <www-tag@w3.org>

Patrick Stickler wrote:
> 
>...
> 
> Using an http: URL to denote a rock in my back yard or the concept of
> 'spicy' does not make either of those things web-accessible or
> the latter concrete.
> 
> And if those URLs really *do* denote those non-web-accessible things,
> then putting anything else at that URL which would be accessible
> is a bug.

Nobody is talking about "putting something else at that URL." Rather
they are talking about making it such that doing a GET on the rock's URI
returns a *representation of the rock*. The thing at the URL is still
the rock. But rocks can't move over the Internet so the GET fetches the
next best thing, a representation (picture, web page, whatever).

>...
> If the resource is not web-accessible, then it should not be denoted
> by a URI that is dereferencable -- or if it is dereferenced, nothing
> should be returned.

I don't think the term "web-accessible" is well-defined but I think you
seem to mean that "if a resource is other than a bag of bits that can be
delivered over the web, then it should not be denoted by a URI that is
dereferencable." But according to the HTTP specification, *no resource*
is a bag of bits. Or at least Web clients have *no access* to the bag of
bits that might be the internal site representation of the resource. All
they have access to are representations, whether the resource is a rock,
or a namespace, or a document or a database record.

>...
> A schema is not a representation of a vocabulary. Sorry. Nope. It's
> something that uses the terms of a vocabulary, but the vocabulary itself
> is abstract, just as are the terms.

Why not?

-- 
Come discuss XML and REST web services at:
  Open Source Conference: July 22-26, 2002, conferences.oreillynet.com
  Extreme Markup: Aug 4-9, 2002,  www.extrememarkup.com/extreme/
Received on Wednesday, 3 July 2002 12:07:25 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Thursday, 26 April 2012 12:47:09 GMT