RE: [xri] Global Cross-Reference Proposal

["Drummond Reed" <drummond.reed@cordance.net>]

Nika,

I wasn't trying to say that /hr and /budget were the same as /hr/budget, nor
was I even saying that there is shared semantics across those three
directories (which there would be if they were XRIs). I was only saying that
with relative URIs, you can "compose" /hr/budget without having to make any
change to the component parts, /hr and /budget. The global cross-reference
proposal is consistent with this feature of relative URI architecture.

I agree with you that /hr and /budget and /hr/budget are not the same
"thing" - in fact with relative URIs there is no expectation whatsoever that
they have a semantic relationship. However it's interesting to point out
that if you were talking XRIs, i.e., +hr and +budget and +hr+budget, there
IS an expectation that there is a semantic relationship between the three
identifiers, just as in English there is a semantic relationship between the
terms "HR", "budget", and "HR budget".

That semantic relationship can be captured precisely using technologies like
XDI, where if you expressed +hr+budget in an XDI address, you would KNOW
that you have the XDI RDF statement:

	+hr/$has/+budget

Again, the clarity of being able to make this machine-readable (and
human-readable) statement in XDI RDF with 100% precision is why the XDI TC
is so concerned with global cross-reference capability in XRI 3.0.

=Drummond 

> -----Original Message-----
> From: Nika Jones [mailto:njones@ouno.com]
> Sent: Friday, November 07, 2008 12:34 AM
> To: OASIS XRI TC
> Cc: OASIS - XDI TC
> Subject: Re: [xri] Global Cross-Reference Proposal
> 
> Drummond:
> 
> Very clear and concise argument for XRI 3.0 global cross references.
> However I'm having trouble with part three, "The Relative URI..." part
> 
> http://wiki.oasis-open.org/xri/XriThree/GlobalCrossReferences#head-
> ec1c0a79e6e2557e92f7fabd6fedbec414bd9022
> 
> are you saying for example:
> 
> /hr
> /budget
> 
> is the same as
> 
> /hr/budget
> 
> as a URI or as a URI path the XRI "path"? Because  it seems they are
> completely different "things".
> 
> Nika
> 
> On Nov 6, 2008, at 11:54 PM, Drummond Reed wrote:
> 
> > I finally had time tonight to complete the writeup of the Global
> > Cross-Reference proposal for XRI Syntax 3.0. This is based mostly on
> > requirements from the XDI TC that go back to the dawn of the XDI RDF
> > model.
> > We have been discussing them on our last few weekly telecons in
> > order to
> > document them in detail before the XRI TC F2F next week.
> >
> > The full proposal is written up at:
> >
> > 	http://wiki.oasis-open.org/xri/XriThree/GlobalCrossReferences
> >
> > Since this is the proposal with the biggest impact on XRI 3.0
> > syntax, I urge
> > all XRI TC members to read through it and comment on the list.
> >
> > Thanks,
> >
> > =Drummond
> >
> >
> >
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> 
> 
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