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Re: URIs for properties at schema.org

From: John Panzer <jpanzer@google.com>
Date: Fri, 14 Oct 2011 15:32:42 -0700
Message-ID: <CAJu8rwWS_50h=dP-pCo-2XfXZevCuegKOA6BgRWJyLSRFEmiBQ@mail.gmail.com>
To: Gregg Kellogg <greggkellogg@gmail.com>
Cc: Bob Ferris <zazi@smiy.org>, public-vocabs@w3.org
Thanks; with regard to this, I wasn't sure what "@itemprop names which are
not absolute URIs are resolved as relative URIs either to @itemtype or
Document base." means.

--
John Panzer / Google
jpanzer@google.com / abstractioneer.org <http://www.abstractioneer.org/> /
@jpanzer



On Wed, Oct 12, 2011 at 12:40 PM, Gregg Kellogg <greggkellogg@gmail.com>wrote:

> Note that the just-released Microdata to RDF draft defines property URI
> generation using the same domain as the @itemtype, not relative to the type
> itself. Read about it at [1]; comments welcome, feedback to
> public-html-data-tf@w3.org.
>
> Gregg
>
> [1]
> http://lists.w3.org/Archives/Public/public-html-data-tf/2011Oct/0066.html
>
> On Oct 12, 2011, at 1:44 AM, Bob Ferris wrote:
>
> > Hi,
> >
> > On 10/12/2011 9:45 AM, Bernard Vatant wrote:
> >> Thanks for the pointer to any23.org <http://any23.org>
> >>
> >> An issue I clearly see with URIs such as http://schema.org/Person/name
> >> is that some properties are used by more than one class. So we'll have
> >> for example http://schema.org/Movie/duration and
> >> http://schema.org/Event/duration potentially misleading to the idea
> that
> >> they are different properties with specific domains, although the
> >> definition found for "duration" is exactly the same at both
> >> http://schema.org/Movie and http://schema.org/Event : "The duration of
> >> the item (movie, audio recording, event, etc.) in ISO 8601 date format
> >> <http://en.wikipedia.org/wiki/ISO_8601>." So it's another argument for
> >> having this definition clearly published at a single place, under
> >> http://schema.org/duration - with expected range
> >> http://www.schema.org/Duration. (which BTW would lead to the side issue
> >> of having a property and its range just differing by one character case,
> >> not a good practice in my opinion).
> >
> > +1 for excluding the class domains in the URIs of multiple classes
> spanning properties, i.e., a name is a name is a name. A human user and also
> a machine will get the relation (specific meaning) of name via its context,
> i.e., the types of that resource, e.g., schemaorg:Person => a person's name
> etc.
> >
> > Cheers,
> >
> >
> > Bo
> >
> >
> > PS: otherwise we would probably end up with something the like the
> Freebase vocabulary ;)
> >
> >
>
>
>
>
Received on Friday, 14 October 2011 22:33:28 GMT

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