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Re: F2F Meeting Minutes

From: Graham Klyne <Graham.Klyne@Baltimore.com>
Date: Fri, 10 Aug 2001 16:43:50 +0100
Message-Id: <5.1.0.14.2.20010810160633.034c1040@joy.songbird.com>
To: rdf core <w3c-rdfcore-wg@w3.org>
At 10:49 AM 8/10/01 +0100, Brian McBride wrote:
><http://www.w3.org/2001/sw/RDFCore/20010801-f2f/2001-08-02.html#T19-25-41>2001-08-02#11 
>Graham Klyne Post message to list describing how CC/PP uses datatypes

Specifically, I recall the action to be that I post details of how CC/PP 
uses XML schema data types for literal values.  The relevant document here 
is [1] which is not a public document, but incorporates changes from 
last-call reviews.  See, for example, section 4.1.1.2 [2], 4.1.1.3 [3], and 
appendix C [4].

The client vocabulary schema [4] uses the XML schema datatype as the range 
of the corresponding RDF property, where the actual value is a literal 
rather than an RDF class.  In this context, the XML schema datatypes are 
presumed to be subclasses of rdfs:Literal (?).

Example of use:

   <ccpp:Attribute rdf:ID='charWidth'>
     <rdfs:label xml:lang="en">Character display width</rdfs:label>
     <rdfs:domain rdf:resource='&ns-ccpp;Component'/>
     <rdfs:range  rdf:resource='&ns-xsdt;integer'/>
     <rdfs:comment xml:lang="en">
       For character displays, the number of characters that can be
       rendered across the display.  For displays using a proportional
       font, this is the display width in typographical 'em's.
     </rdfs:comment>
   </ccpp:Attribute>

Ooops, just spotted a couple of bugs in the appendix C schema :-(
This raises a couple of questions:

What is the data type of a resource that is a DTD?
   "                                       "   XML schema?
   "                                       "   RDF schema?

#g

[1] http://www.w3.org/Mobile/CCPP/Group/Drafts/WD-CCPP-struct-vocab-20010620/
[2] 
http://www.w3.org/Mobile/CCPP/Group/Drafts/WD-CCPP-struct-vocab-20010620/#xtocid-33666539
[3] 
http://www.w3.org/Mobile/CCPP/Group/Drafts/WD-CCPP-struct-vocab-20010620/#xtocid-33666543
[4] 
http://www.w3.org/Mobile/CCPP/Group/Drafts/WD-CCPP-struct-vocab-20010620/#xtocid-62790564



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Graham Klyne                    Baltimore Technologies
Strategic Research              Content Security Group
<Graham.Klyne@Baltimore.com>    <http://www.mimesweeper.com>
                                 <http://www.baltimore.com>
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Received on Friday, 10 August 2001 12:13:47 EDT

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