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Re: action: ask webont for input

From: Jos De_Roo <jos.deroo.jd@belgium.agfa.com>
Date: Sat, 5 Oct 2002 20:50:35 +0200
To: "Brian McBride <bwm" <bwm@hplb.hpl.hp.com>
Cc: RDF Core <w3c-rdfcore-wg@w3.org>, w3c-rdfcore-wg-request@w3.org
Message-ID: <OF681FAECB.FD590A42-ONC1256C49.00673E54-C1256C49.00678363@agfa.be>


I think this a good projection of the choices
to be ranked as prefer/can live with/can't live with

-- ,
Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/


                                                                                                                        
                    Brian McBride                                                                                       
                    <bwm@hplb.hpl.hp.co       To:     RDF Core <w3c-rdfcore-wg@w3.org>                                  
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                    Sent by:                  Subject:     action: ask webont for input                                 
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                    2002-10-05 11:34 AM                                                                                 
                                                                                                                        
                                                                                                                        





Draft Question for Webont:

RDFCore are considering a number of ways of representing datatyped values
in RDF graphs and RDF/XML.  We would like to know WEBONT's preference
amongst the following options.  Please could you rank them in order of
preference, and identify any which would be unacceptable.  Unacceptability
is not a matter of taste; to label an option as unacceptable, a critical
requirement that cannot be met must be identified.


Proposal A:

   <rdf:Description rdf:about="Jenny">
     <foo:age>10</foo:age>
   </rdf:Description>

The object of the age property denotes a string literal[*].

Proposal B:

   <rdf:Description rdf:about="Jenny">
     <foo:age>10</foo:age>
   </rdf:Description>
   <rdf:Description rdf:about="&foo;age>
     <rdfs:format rdf:resource="&xsdr;integer"/>
   </rdf:Description>

The object of an age property denotes a string literal [*] from the lexical

space of xsd:integer.

Proposal C:

   <rdf:Description rdf:about="Jenny">
     <foo:age rdf:datatype="&xsdr;integer>10</foo:age>
   </rdf:Description>

The object of the age property denotes a member of the value space of
xsd:integer.

Proposal D:

   <rdf:datatype rdf:property="&foo:age" rdf:datatype="&xsdr;decimal"/>
   <rdf:Description rdf:about="Jenny">
     <foo:age>10</foo:age>
   </rdf:Description>

Proposal D is proposal C with some syntactic sugar (the rdf:datatype
declaration) so that it is not necessary to put an rdf:datatype attribute
on every use of the age property.

Proposal E:

   <rdf:Description rdf:about="Jenny">
     <foo:age>10</foo:age>
   </rdf:Description>
   <rdf:Description rdf:about="&foo;age>
     <rdfs:range rdf:resource="&xsdr;decimal"/>
   </rdf:Description>

The object of an age property denotes an integer from the value space of
xsd:decimal.

[*] A string literal is an old style RDF literal which consists of a
unicode string and language identifier.
Received on Saturday, 5 October 2002 14:52:18 EDT

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