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PROPOSAL to allow multiple descriptor sets in DRs

From: Phil Archer <parcher@icra.org>
Date: Wed, 11 Jun 2008 10:14:07 +0100
Message-ID: <484F975F.7070009@icra.org>
To: Public POWDER <public-powderwg@w3.org>

I've been looking at the implications of allowing more than one 
descriptor set (and tagset) within a DR and can't find a reason to limit 
their cardinality to one - which is probably good.

The use case for this would be where one organisation is creating DRs 
from different (knowledge) domains. To give a real world example, FOSI 
is likely to be launching its own trustmark later this year, 
independently of the usual ICRA stuff so we might well have a Web site 
that needed, say, a different ICRA label for different sections but the 
same FOSI trustmark across the whole site - hang on - er, that would 
apply to our own site, so how's this (note the use of the ordered list):

<ol>
   <dr>
     <iriset>
       <includehosts>fosi.org</includehosts>
       <pathstartswith>/associates</pathstartswith>
     </iriset>

     <descriptorset src="#someNudity" />
     <descriptorset src="#FOSItrustmark" />
   </dr>

   <dr>
     <iriset>
       <includehosts>fosi.org</includehosts>
     </iriset>

     <descriptorset src="#noNudity" />
     <descriptorset src="#FOSItrustmark" />
   </dr>
</ol>

To process either DR you'd fetch the two descriptor sets identified in 
the src attributes and apply them all to whatever your candidate 
resource was. So allowing multiple descriptor sets allows you to mix and 
match them within a DR - something I recall talking to Dave/Segala about 
in the past as being something that would be useful.

It works in POWDER-S too.

Each of those descriptor sets would create an OWL class with an nodeID 
of descriptorset_x and the sub class relationship would be

<owl:Class rdf:about="#iriset_1">
   <rdfs:subClassOf rdf:resource="#descriptorset_1"/>
   <rdfs:subClassOf rdf:resource="#descriptorset_2"/>
</owl:Class>

Look OK to everyone?

Phil.
Received on Wednesday, 11 June 2008 09:14:55 GMT

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