RE: future of SKOS constraint S12 in an RDF 1.1 world?

Hi Peter, Bob,

 

If a change is needed, would rdf:PlainLiteral (http://www.w3.org/TR/rdf-plain-literal/) be a candidate to support language tags?

 

Kind Regards,

 

Johan De Smedt 

> -----Original Message-----

> From: Peter Ansell [mailto:ansell.peter@gmail.com]

> Sent: Thursday, 03 May, 2012 01:01

> To: Bob DuCharme

> Cc: public-esw-thes@w3.org

> Subject: Re: future of SKOS constraint S12 in an RDF 1.1 world?

> 

> Hi Bob,

> 

> That is unusual that the SKOS spec did not allow for xsd:string

> literals at the time. People have been typing string literals as

> xsd:string since well before SKOS came around.

> 

> If one interprets the SKOS spec liberally with respect to RDF-1.1 then

> it would make sense to simply read "plain literals" as "xsd:string

> typed literals". The basis for this pragmatic change would be that

> "plain literals" will have no meaning soon, even if RDF-1.0 documents

> are still going to be readable by RDF-1.1 parsers.

> 

> Is it a big issue to change the SKOS spec?

> 

> Cheers,

> 

> Peter

> 

> On 2 May 2012 23:00, Bob DuCharme < <mailto:bob@snee.com> bob@snee.com> wrote:

> > At  <http://www.w3.org/TR/2009/REC-skos-reference-20090818/#L1329> http://www.w3.org/TR/2009/REC-skos-reference-20090818/#L1329 the SKOS

> > spec says the following for constraint S12: "The rdfs:range of each of

> > skos:prefLabel, skos:altLabel and skos:hiddenLabel is the class of RDF plain

> > literals." As I understand this, the triple {:myConcept1 skos:prefLabel "my

> > home page"^^xsd:string} violates this constraint, but wouldn't if the object

> > was just "my home page".

> >

> > At  <http://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal> http://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal, the RDF 1.1

> > Concepts and Abstract Syntax says "This section is a major departure from

> > RDF 2004 as simple literals are now treated as syntactic sugar for

> > xsd:string typed literals."

> >

> > If simple literals are treated as xsd:string typed literals, what would this

> > mean for constraint S12?

> >

> > thanks,

> >

> > Bob

> >

> >

> >

> >