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HTTP URIs and authority (was: Resources and representations)

From: Mikael Nilsson <mikael@nilsson.name>
Date: Tue, 23 Oct 2007 12:41:29 +0200
To: wangxiao@musc.edu
Cc: Richard Cyganiak <richard@cyganiak.de>, Alan Ruttenberg <alanruttenberg@gmail.com>, W3C-TAG Group WG <www-tag@w3.org>
Message-Id: <1193136089.11805.13.camel@daneel>


tis 2007-10-23 klockan 11:02 +0100 skrev Xiaoshu Wang:
> This is where all the trouble starts.  If TAG no long wants the 
> concept of URL, then there is nothing located at anywhere in the 
> network.  "example.com" might be the "birthplace" of 
> "http://example.com/foo", but it is not the "home" of the resource.

You have stated this several times - and I'm personally convinced this
is wrong.

Let's focus on section 2.2.2 of AWWW: 

http://www.w3.org/TR/webarch/#uri-assignment 

"URI ownership is a relation between a URI and a social entity, such as
a person, organization, or specification. URI ownership gives the
relevant social entity certain rights, including:

     1. to pass on ownership of some or all owned URIs to another owner
        —delegation; and
     2. to associate a resource with an owned URI — URI allocation.

...

The approach taken for the "http" URI scheme, for example, follows the
pattern whereby the Internet community delegates authority, via the IANA
URI scheme registry and the DNS, over a set of URIs with a common prefix
to one particular owner. One consequence of this approach is the Web's
heavy reliance on the central DNS registry."

I read the above as saying that the owner of example.com gets to decide
what resource is identified by http://example.com/foo

Of course, others may have statements to make about that URI, but the
owner has final authority in case of URI collision (AWWW 2.2.1) to
decide what resource it identifies.

It is apparent that you do not agree with this.Personally, I think this
is maybe one of the most central parts of AWWW, and could not be
emphasized enough. In any case, I don't see that the TAG has stepped
away from this position just by deemphasizing URLs. URI allocation is
still done by the owner.

This also answers your question in an earlier thread about what I mean
by "final authority" - not authority regarding triples, but authority
regarding identity.

/Mikael

-- 
<mikael@nilsson.name>

Plus ça change, plus c'est la même chose
Received on Tuesday, 23 October 2007 10:41:26 UTC

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