Clarification on owl:real sought

[This is not a formal comment, just seeking understanding.]

In the OWL 2 Syntax specification [1] section 4 it states that every 
datatype in the datatype map is described by a value space, a lexical 
space and a facet space.

In section 4.1 it lists owl:real as such a datatype but then says that 
owl:real does not "directly provide any lexical values". Could someone 
explain in what sense owl:real is a datatype if there are no lexical 
values?

Since owl:real is included in the OWL 2 RL profile that seems to imply 
it is intended to be used in OWL 2 RL documents which would seem to 
imply lexical values.

Dave

[1] http://www.w3.org/TR/owl2-syntax/
[2] http://www.w3.org/TR/owl2-profiles/#Feature_Overview_3
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Ivan Herman wrote:
> The W3C OWL Working Group has just published seven drafts for OWL 2,
> including the structural specification, direct and RDF based semantics,
> serialization in RDF or in XML, Profiles, conformance and test cases. See
> 
> http://www.w3.org/blog/SW/2008/10/10/seven_owl_2_drafts_published
> 
> for more details and pointers to the documents themselves. The Working
> group seeks public feedback on the drafts; send your comments to
> public-owl-comments@w3.org. Please, send your comments until 2008-10-23.
> 
> Cheers
> 
> Ivan
>

Received on Wednesday, 7 January 2009 11:40:30 UTC