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Re: Inverse properties

From: Peter F. Patel-Schneider <pfpschneider@gmail.com>
Date: Sat, 07 Jun 2014 15:23:12 -0700
Message-ID: <539390D0.2050307@gmail.com>
To: Dan Brickley <danbri@google.com>
CC: ☮ elf Pavlik ☮ <perpetual-tripper@wwelves.org>, W3C Web Schemas Task Force <public-vocabs@w3.org>, Martin Hepp <martin.hepp@ebusiness-unibw.org>, Markus Lanthaler <markus.lanthaler@gmx.net>
The subPropertyOf is not there now, right?

I couldn't find it in http://schema.org/docs/schema_org_rdfa.html which 
currently reads
     <div typeof="rdf:Property" resource="http://schema.org/collection">
       <span class="h" property="rdfs:label">collection</span>
       <span property="rdfs:comment">A sub property of object. The collection 
target of the action.</span>
       <span>Domain: <a property="http://schema.org/domainIncludes" 
href="http://schema.org/UpdateAction">UpdateAction</a></span>
       <span>Range: <a property="http://schema.org/rangeIncludes" 
href="http://schema.org/Thing">Thing</a></span>
     </div>

This appears to be a significant change to schema.org, as Guha has said that 
"[t]here is no organizaton of properties" 
[http://lists.w3.org/Archives/Public/public-vocabs/2013Oct/0267.html].


Will it interact with schema.org domains and ranges in the way that I 
suggested in http://lists.w3.org/Archives/Public/public-vocabs/2014Jan/0025.html

peter



On 06/07/2014 02:27 PM, Dan Brickley wrote:
> On 7 June 2014 20:02, Peter F. Patel-Schneider <pfpschneider@gmail.com> wrote:
>> On 06/07/2014 11:40 AM, Dan Brickley wrote:
>> [...]
>
>>> Yes, indeed.
>>>
>>> In fact there's a new release of the site in preparation (I'll send a
>>> full msg monday) which makes 'inverse' relations navigable, as well as
>>> sub-property / super-property links in a property hierarchy too.
>>
>>
>> So the RDFS property hierarchy facility is now an official part of
>> schema.org?
>>
>> Are the properties in schema.org that state in comments that they have a
>> superproperty (e.g., collection) going to get superproperties?
>
> http://sdopending.appspot.com/collection
> http://sdopending.appspot.com/object etc.
>
> The corresponding definitions in the underlying config look like this,
>
> <div typeof="rdf:Property" resource="http://schema.org/collection">
>   <span class="h" property="rdfs:label">collection</span>
>   <span property="rdfs:comment">A sub property of object. The
> collection target of the action.</span>
>   <link property="rdfs:subPropertyOf" href="http://schema.org/object" />
>   <span>Domain: <a property="http://schema.org/domainIncludes"
> href="http://schema.org/UpdateAction">UpdateAction</a></span>
>   <span>Range: <a property="http://schema.org/rangeIncludes"
> href="http://schema.org/Thing">Thing</a></span>
> </div>
>
> Once this settles down we ought to remove the redundant prose from the
> textual definition.
>
> Dan
>
Received on Saturday, 7 June 2014 22:23:44 UTC

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