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Subject: RE: [xri] [Fwd: Re: Clarifying what a URL identifies (Four Uses o f aURL)]

Thanks Peter,

This was exactly the point I was trying to highlight during the call and
which you have described so succinctly. I agree that the right place for
this is in the requirements draft but also believe that a high level
synopsis should be incorporated into the charter as a way of conveying to
our audience our appreciation of the gaps and overlaps with other work in
the same space.

I think that the two documents will probably evolve in parallel. I'll take
responsibility for the charter piece of it.


> -----Original Message-----
> From: Peter C Davis [mailto:peter.davis@neustar.biz]
> Sent: Thursday, January 23, 2003 10:19 AM
> To: 'xri@lists.oasis-open.org'
> Subject: [xri] [Fwd: Re: Clarifying what a URL identifies (Four Uses of a
> URL)]
> This prompts me to raise an issue, which i think is incompletely
> addressed with laisons to other standards bodies:
> I think we need formal language (in the requirements draft) which
> ecourages the research into complimentary and conflicting resource
> expression methodologies.
> Having said that, todays mention of outside entities questioning the
> need/benefits for this TCs output (which drives clarification in the
> requirements draft), goes a long way to this end.  Clear articulation of
> the gaps in current resource identifier notations should be included in
> the introduction.
> The W3C TAG, in particular, is likely to keep a scepticle eye, until
> these shortcommings are well laid out.
> --- peterd
> -------- Original Message --------
> Subject: Re: Clarifying what a URL identifies (Four Uses of a URL)
> Resent-Date: Thu, 23 Jan 2003 06:42:20 -0500 (EST)
> Resent-From: www-tag@w3.org
> Date: Thu, 23 Jan 2003 11:17:48 +0000
> From: Graham Klyne <GK@ninebynine.org>
> To: Tim Berners-Lee <timbl@w3.org>
> CC: Sandro Hawke <sandro@w3.org>, www-tag@w3.org
> References: <200301212127.h0LLRNA15108@wadimousa.hawke.org>
> At 10:02 PM 1/22/03 -0500, Tim Berners-Lee wrote:
>  >One *can* introduce a new system with a different design
>  >and argue its merits. Sandro has designed an alternative
>  >system http://www.w3.org/2002/12/rdf-identifiers/
>  >which seems consistent and I haven't finished thinking
>  >about - there are things I like about it and things I don't.
>  >But it does address all the questions, I think.
> FWIW, I think Sandro's proposal is consistent with the current state of
> specification, and other views of URIs that have been expressed here,
> except maybe the view that http: URIs (without fragments) should always
> denote documents (I hope I don't misinterpret).  My point of divergence
> with that proposal is the suggestion it should be part of the RDF core,
> because I don't see the necessity for it to be there.
> The formal semantics for RDF does tell us one thing, though:  in a given
> interpretation of an RDF graph (document, or collection of documents
> considered together), a given URI must always denote the same single
> thing.  So we can't have a graph in which a URI sometimes denotes a car
> and
> elsewhere simultaneously denotes a picture.
> #g
> -------------------
> Graham Klyne
> <GK@NineByNine.org>
> --
> --- peterd
> Sr Security Architect
> Neustar, Inc.		smtp:   peter.davis@neustar.biz
> (571) 434 5516		jabber: peter.davis@checkov.neustarlab.biz
> <Quote type="random">
> The pursuit of perfection often impedes improvement.
> <Author>George F. Will</Author>
> </Quote>
> PGP Fingerprint:
> 8994 8774 B682 3A04 B304  C4A2 D9DD 7E5B 8AAC 2D00

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