Re: http://schema.org/CreativeWork: headline and name properties?

Dear Dan, all:
In general, I think we should ask the Dublin Core / library meta-data groups for a recommendation, because they will surely have thought about text properties for resources before. I can only judge it from the product perspective. There, I think we need

name - The name of an item
description - A textual description

It should ideally come with two sub-properties

descriptionLong - A long textual description (e.g. several paragraphs)
descriptionShort - A short textual description (like a teaser, abstract, or summary)

For http://schema.org/Organization, we also have

legalName - The official name of the organization, e.g. the registered company name.

Should the requirements for representing variants of textual descriptions be very diverse across domains, I suggest to rather use a type like http://schema.org/TextualDescription with the properties

typeOfDescription - The type of the textual description (like abstract, long description, teaser)
description - The description as text

and change the range of description to Text OR TextualDescription.

This is of course just a raw sketch and requires more elaboration and feedback from stakeholders.

Martin

On Feb 4, 2014, at 3:29 PM, Dan Scott wrote:

> On Tue, Feb 4, 2014 at 8:11 AM, Martin Hepp <martin.hepp@ebusiness-unibw.org> wrote:
> 
> On Feb 3, 2014, at 5:46 PM, Dan Scott wrote:
> >
> > I think it makes a lot of sense to try and distill some best practices here, and hopefully reflect those into the documentation. Let's take a concert ticket as an example, which would probably be a multi-typed "schema:Product schema:MusicEvent" (and please correct me on any of these assumptions!)
> >
> > - name of the item
> >
> > Assuming we're using schema:name here, are we talking about the name of the MusicEvent or the name of the Product? (That is, "Katy Perry's Prismatic World Tour 2014" or "Ticket for Katy Perry's Prismatic World Tour 2014"). I'm guessing that in the case of a multi-typed Product it would be the latter.
> >
> > - title / headline
> >
> 
> I think that for multi-typed entity you can only have the same name for the different roles of the object. A "convention" that relies on details of the syntactical representation is likely to break in a multi-syntax environment with RDFa, Microdata, and JSON-LD on the table.
> 
> If one wants to model different names for multiple roles of the same entity, I would define them as two entities and link them via sameAs. Then you have stated equivalence of the entities while you are still able to properly represent differing values for the same property.
> 
> This does of course not work if you use a reasoner that consolidates the facts from multiple representations of the same entity. But OWL-style reasoning is, IMO, not very relevant in processing schema.org data, at least as of today (and sameAs in schema.org is not formally equivalent to owl:sameAs anyway).
> 
> 
> Agreed on all points; thanks, Martin, as always, for the clarity and thoughtfulness of your reply!
> 
> One of my goals in putting together a concrete example was to try and tease out the intended difference between the "name of the item" and the "title / headline" generic properties you had put forward (which is also relevant to the initial subject of this thread). Over in GoodRelations, you have gr:name as equivalent to dc:title, so there seems to be no meaningful difference there. Can you provide a little more insight into how you think those properties should be differentiated in schema.org?
> 
> Thanks,
> Dan

--------------------------------------------------------
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

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Received on Tuesday, 4 February 2014 18:27:11 UTC