- From: Guus Schreiber <schreiber@cs.vu.nl>
- Date: Wed, 04 Jun 2003 13:27:45 +0200
- To: WebOnt WG <www-webont-wg@w3.org>
One of the comments from RDFCore on Reference is the following:
http://lists.w3.org/Archives/Public/public-webont-comments/2003May/0004.html
> #owlref-rdfcore-rdfs:literal-not-a-datatype
>
> [[
> A typed literal needs to have an XML attribute rdf:datatype of which
> the value is recommended to be one of the following:
> ...
>
> # The RDF datatype rdfs:Literal which is the class of literals,
> typed and plain.
> ]]
>
> rdfs:Literal is not a datatype.
OK, so it should be removed from this list. Still, I assume we do not
want to forbid the use of rdfs:Literal as a possible data range.
Therefore, I wanted to change the following paragraph
[[
OWL allows two types of data range specifications:
* A RDF datatype specification.
* An enumerated datatype, using the owl:oneOf construct.
]]
to
[[
OWL allows two types of data range specifications:
* A RDF datatype specification.
* The class rdfs:Literal
* An enumerated datatype, using the owl:oneOf construct.
]]
However, when consulting S&AS on this, I found in the list of datatypes
in Sec. 2:
[[
OWL also uses rdfs:Literal
]]
The production in Sec. 2.3.2.3 states:
[[
dataRange ::= datatypeID
| 'oneOf(' { dataLiteral } ')'
]]
where "datatypeID" translates according to the mapping table into the
triple:
[[
datatypeID rdf:type rdfs:Datatype
]]
So, something needs to change here, when rdfs:Literal is indeed not an
rdf:Datatype.
Guus
--
Free University Amsterdam, Computer Science
De Boelelaan 1081a, 1081 HV Amsterdam, The Netherlands
Tel: +31 20 444 7739/7718
E-mail: schreiber@cs.vu.nl
Home page: http://www.cs.vu.nl/~guus/
Received on Wednesday, 4 June 2003 07:27:47 UTC