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RE: pls keep Concepts and documents disjoint

From: Miles, AJ (Alistair) <A.J.Miles@rl.ac.uk>
Date: Tue, 21 Sep 2004 13:24:51 +0100
Message-ID: <350DC7048372D31197F200902773DF4C05E50C1B@exchange11.rl.ac.uk>
To: 'Dan Connolly' <connolly@w3.org>
Cc: "'public-esw-thes@w3.org'" <public-esw-thes@w3.org>

Dan,

Thanks alot for stating a clear position on this issue.  I'm sure you've
heard this argument before, but I'll state it again for the record ...  

The main problem I see with not allowing 'slash' URIs for concepts is that
with 'hash' URIs the fragment identifiers are not passed to a resolution
service.  

Many thesauri are on the 1000s of concepts scale.  Where the thesaurus owner
would like to deploy an http service that resolves concept URIs to some sort
of helpful documentation, it is impractical to have a single document
serving the entire concept space.

[To everyone ...]

As we are looking to publish a new SKOS Core vocabulary specification and
guide within the next two months or so, both of which will include lots of
examples, we must come up with a clear (or at least neutral) position on
URIs for concepts, that comes close to satisfying (or at least not
prohibiting satisfaction of) both abstract and pragmatic considerations.

So, help!

Al.


---
Alistair Miles
Research Associate
CCLRC - Rutherford Appleton Laboratory
Building R1 Room 1.60
Fermi Avenue
Chilton
Didcot
Oxfordshire OX11 0QX
United Kingdom
Email:        a.j.miles@rl.ac.uk
Tel: +44 (0)1235 445440



> -----Original Message-----
> From: public-esw-thes-request@w3.org
> [mailto:public-esw-thes-request@w3.org]On Behalf Of Dan Connolly
> Sent: 20 September 2004 22:10
> To: public-esw-thes@w3.org
> Subject: pls keep Concepts and documents disjoint
> 
> 
> 
> Regarding
>   http://www.w3.org/2001/sw/Europe/reports/thes/1.0/guide/
>   http://www.w3.org/2001/sw/Europe/reports/thes/1.0/guide/20040504/
> 
> This example:
> 
>  <skos:Concept rdf:about="http:/example.com/Concept/0001"/>
> 
> uses a hash-less http URI for a concept. I recommend against
> that. I recommend that you allow people to use hash-less
> http URIs for documents, and that you keep documents
> disjoint from Concepts.
> 
> 
> While no widely adopted standard compells you to do this,
> the HTTP specification suggests that a hashless http URI
> denotes a "network resource"
>   http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.2.2
> 
> and some members of the W3C TAG have argued this position
> in dicussion of issue httpRange-14
>   http://www.w3.org/2001/tag/issues.html#httpRange-14
> 
> 
> 
> -- 
> Dan Connolly, W3C http://www.w3.org/People/Connolly/
> 
> 
> 
Received on Tuesday, 21 September 2004 12:25:25 GMT

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