Re: schema.org proposal for extending Thing

I like "sameAs" as a way to identify an object with one or more well-known
external entities. Let's ship it!

As for categorization, it seems we already have a trend toward
type-specific category properties (FoodEstablishment.servesCuisine,
JobPosting.occupationalCategory, Event.eventCategory (proposed),
Article.articleSection, etc.), so maybe we should just continue in that
vein for your POI work rather than adding Thing.category.  Using
type-specific category properties also makes it easier to document
specifically what kinds of values are most useful, including external
enumerations <http://www.w3.org/wiki/WebSchemas/ExternalEnumerations> in
some cases.

jb


On Wed, May 8, 2013 at 9:14 PM, Raj Singh <rsingh@opengeospatial.org> wrote:

> Ah, OK I get it now. I'd describe additionalType as allowing you to refer
> to 'Things' that aren't schema.org 'Things'. Whereas CreativeWork's
> 'about' property allows you to refer to 'Things' that *are* schema.org'Things'. I can now see how my category requirement could be expressed
> using additionalType.
>
> I'm not sure if there's general consensus that categorization/tagging is
> properly seen as a typing exercise. Looking forward to comments from the
> group...
>
> ---
> Raj
> The OGC: Making location count.
> http://www.opengeospatial.org/ogc/organization/staff/rsingh
>
>
> On May 8, at 8:27 PM, Dan Brickley <danbri@danbri.org> wrote:
>
> > On 9 May 2013 01:15, Raj Singh <rsingh@opengeospatial.org> wrote:
> >> Could you provide an example of how to use additionalType? It's not
> clear to me.
> >
> > http://www.w3.org/wiki/WebSchemas/additionalTypeProposal#Examples
> >
> > <div itemscope itemtype="http://schema.org/Product">
> >   <link itemprop="additionalType"
> > href="http://www.productontology.org/id/Fire_extinguisher" />
> >   <span itemprop="name">.. a short name for the object ...</span>
> >   Product description:
> >   <span itemprop="description">... a longer description ...</span>
> >   <div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
> >       <span itemprop="price">$19.99</span>
> >       <a itemprop="availability" href="http://schema.org/InStock"></a>In
> stock
> >   </div>
> > </div>
>
>
>