- From: Ivan Herman <ivan@w3.org>
- Date: Fri, 30 Nov 2012 15:21:47 -0500
- To: Dan Brickley <danbri@google.com>
- Cc: W3C Web Schemas Task Force <public-vocabs@w3.org>, Gregg Kellogg <gregg@greggkellogg.net>
Dan,
a very specific additional step:
[snip]
>
>
> 3. Class/Property
>
> There are several cases (including the above-mentioned Actions draft)
> where it is useful within schema.org to have a first class type
> representing the notion of 'Class', and of 'Property'. This is rather
> meta and while it is not something designed for mainstream webmasters
> to encounter, it will help with structuring and documenting the
> vocabulary.
>
> I have written up a proposal for adding these (and aliasing them to
> rdfs:Class, rdf:Property) at
> http://www.w3.org/wiki/WebSchemas/SchemaDotOrgMetaSchema ...alongside
> a proposal to use schema.org/domainIncludes and
> schema.org/rangeIncludes in our RDFa representation of the schema.
>
What this also means is that the registry (see also [1,2]) used for the microdata->RDF conversion at
http://www.w3.org/ns/md
should be extended for schema.org with:
'Class' : { subPropertyOf: http://www.w3.org/2000/01/rdf-schema#Class }
'Property' : { subPropertyOf: http://www.w3.org/1999/02/22-rdf-syntax-ns#Property }
Correct? If so, I will add those.
Ivan
[1] http://www.w3.org/TR/2012/NOTE-microdata-rdf-20121009/#vocabulary-registry
[2] http://www.w3.org/TR/2012/NOTE-microdata-rdf-20121009/#vocabulary-expansion
----
Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
mobile: +31-641044153
FOAF: http://www.ivan-herman.net/foaf.rdf
Received on Friday, 30 November 2012 20:22:14 UTC