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Re: vCard RDF NOTE - draft

From: Martin Hepp (UniBW) <martin.hepp@ebusiness-unibw.org>
Date: Fri, 02 Oct 2009 09:41:24 +0200
Message-ID: <4AC5AEA4.3040505@ebusiness-unibw.org>
To: Renato Iannella <renato@nicta.com.au>
CC: Harry Halpin <hhalpin@ibiblio.org>, Norman Walsh <ndw@nwalsh.com>, Dan Brickley <danbri@danbri.org>, Peter Mika <pmika@yahoo-inc.com>, Toby Inkster <tai@g5n.co.uk>, Brian Suda <brian.suda@gmail.com>, www-archive@w3.org
Dear Renato:
In the current version, you propose that

"that some properties can be expressed as text literals or rdf:resource 
values".

In Crete, we stressed the importance of staying within OWL DL or other 
subsets of OWL.

This requirement does not seem to be met by the current spec, because 
using an owl:ObjectProperty with a literal is afaik outside of OWL DL.

Also, the modeling of the work etc. types as

http://www.w3.org/2006/vcard/Work ( rdf:type owl:Class )

    * rdfs:subClassOf -- http://www.w3.org/2006/vcard/Address
    * rdfs:subClassOf -- http://www.w3.org/2006/vcard/Label
    * rdfs:subClassOf -- http://www.w3.org/2006/vcard/Tel

looks a bit strange to me, at least at first sight, because by that you 
are saying that any node that you define to be a wok phone number is at 
the same time an address and a label.

The same problem may be found for other such classes.

I would rather define a class v:ContactType, define instances thereof 
for "Work", "Home", etc., and define an owl:ObjectProperty hasContactType

Then, you can simply say

      <v:tel rdf:parseType="Resource">
        <rdf:value> +61 7 555 5555 </rdf:value>
        <v:hasContactType  
rdf:resource="http://www.w3.org/2006/vcard/ns#Work"/>
      </v:tel>



Martin

Renato Iannella wrote:
>
> Hi all - any further comments?
>
> I will formally submit to W3C on Monday to replace the old NOTE...
>
> R
>
>
> On 24 Sep 2009, at 22:41, Renato Iannella wrote:
>
>>
>> Hi all - the latest draft is up at:
>>
>>   http://spin.nicta.org.au/vcardrdf/vcard-rdf-20090924.html
>>
>> Please send in any comments/suggestions (I am sure I have missed 
>> something!)
>>
>>
>> Cheers...  Renato Iannella
>> NICTA
>>
>
> Cheers...  Renato Iannella
> NICTA
>
>

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Received on Friday, 2 October 2009 07:42:15 GMT

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