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Re: schema.org weekend reading: Actions/Activities; Audience draft, and Class/Property.

From: Ivan Herman <ivan@w3.org>
Date: Fri, 30 Nov 2012 15:29:01 -0500
Cc: W3C Web Schemas Task Force <public-vocabs@w3.org>, Gregg Kellogg <gregg@greggkellogg.net>
Message-Id: <094326A4-693F-4461-8A5B-83158DF2D597@w3.org>
To: Dan Brickley <danbri@google.com>

On Nov 30, 2012, at 15:26 , Dan Brickley wrote:

> On 30 November 2012 20:21, Ivan Herman <ivan@w3.org> wrote:
>> 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.
> 
> Sounds about right, though I'd suggest holding off for now. We might
> have more feedback to consider. Or we might add a few more terms...

Sure, I have not updated anything yet:-) 

Ivan

> 
> Dan
> 
>> 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
>> 
>> 
>> 
>> 
>> 
> 


----
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 20:29:27 GMT

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