- From: Richard Wallis <richard.wallis@dataliberate.com>
- Date: Sat, 22 Oct 2016 20:44:41 +0100
- To: Greg Hullender <greg_hullender@hotmail.com>
- Cc: Stian Soiland-Reyes <soiland-reyes@cs.manchester.ac.uk>, Thad Guidry <thadguidry@gmail.com>, "schema.org Mailing List" <public-schemaorg@w3.org>
- Message-ID: <CAD47Kz5=kTZ9LRAtuyLUQGZLYRvOPraNBtVgvQeYfdr=DC-h=g@mail.gmail.com>
On the issue of “* schema.org <http://schema.org/> doesn’t distinguish between the abstract creative work and the physical realization of it.*” This is handled in the bibliographic world using FRBR <https://en.wikipedia.org/wiki/Functional_Requirements_for_Bibliographic_Records> (Functional Requirements for Bibliographic Works), using a hierarchy of Works, Expressions, Manifestations and Items. This was considered in depth in the Schema Bib Extend Group which introduced the exampleOfWork and workExample properties into schema:CreativeWork. <http://CreativeWork.> It is with this simple mechanism supplemented by MTEs it is possible to represent most any entity instance in that hierarchy. So “To Kill a Mockingbird”, the creative work independent of its production in any form would be a schema:CreativeWork with author, etc.. It would have a workExample relationship with “To Kill a Mockingbird”, a schema:Book with publisher, ISBN, numberOfPages, BookFormatType, etc. To describe the availability of an instance of such a schema:Book it would be multi-typed to be also a schema:Product enabling the capability to describe height, weight, image (cover image), and offers to purchase, loan, etc. An individual copy of “To Kill a Mockingbird” (the one signed by the author, or an individual copy on a library shelf) would be an MTE combination with schema:Book & schema:IndividualProduct which introduces serialNumber (barcode in library terms). There are examples of parts of this on the Book page: http://schema.org/Book#offeredBy-1 Also on that page is an example <http://schema.org/Book#bib-3> of how a series or multi-part work would be described, using hasPart and isPartOf to relate the volumes of “Lord of the Rings” together in the overall work. Note the use of a combination of schema:Book & schema:PublicationVolume. Referencing you anthology example, each story could be described as an individual schema:CreativeWork with author etc. and asPartOf the overall schema:CreativeWork (or subtype thereof) with publisher etc. ~Richard. Richard Wallis Founder, Data Liberate http://dataliberate.com Linkedin: http://www.linkedin.com/in/richardwallis Twitter: @rjw On 22 October 2016 at 17:07, Greg Hullender <greg_hullender@hotmail.com> wrote: > This is part of a larger problem: schema.org doesn’t distinguish between > the abstract creative work and the physical realization of it. We’d like to > say that the physical work comprises the cover (which has an artist) and > the abstract text (which has an author). > > > > Similarly, the novel “To Kill a Mockingbird” has a length, an author, a > copyright date, etc., but it doesn’t have a cover picture, a publisher, or > an ISBN. A particular edition of “To Kill a Mockingbird” has a publisher, a > publication date, a number of pages, and contents. The contents include the > novel but also likely include an introduction by someone other than Harper > Lee and might include study materials as well. It would be nice to separate > the descriptions of the cover, the introduction, and the novel text from > the description of the physical volume that combines them. > > > > The same problem occurs when trying to describe an anthology. It’s a book > with no author but each story in it has an author. Magazines sort of work, > via publication issue, but that’s a ad hoc solution to a more general > problem. > > > > In general, I wish Schema.org made a distinction between a WrittenWork and > a PublishedWork. > > > > WrittenWork would have a title, author, length in words (not pages), > copyright date (not publication date), optionally might have editor, > translator, translationOf, revisionOf > > > > PublishedWork would have an editor (but not an author), a length in pages, > a publication date, a publisher, contents (creative works), and optionally > might include illustrations, a volume number, etc. > > > > A WrittenWork might be part of a series. (E.g. “The Fellowship of the > Ring” is part of “The Lord of the Rings.”) A PublishedWork might be part of > a set. (E.g. Volume I and Volume II would be part of the same set.) > > > > It might be nice to have a “publishedAs” field in WrittenWork to allow > enumeration of places the work was published. > > > > --Greg > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for > Windows 10 > > > > *From: *Stian Soiland-Reyes <soiland-reyes@cs.manchester.ac.uk> > *Sent: *Saturday, October 22, 2016 5:48 AM > *To: *Thad Guidry <thadguidry@gmail.com> > *Cc: *schema.org Mailing List <public-schemaorg@w3.org> > *Subject: *Re: Leaping aliases or Property aliases in Schema.org > > > > Perhaps you could amend with some owl:equivalentProperty rule. (Assuming > you mean the "artist" of a CoverArt must be a "cover artist".) > > But would not the cover artist property go from the Work (e.g. a book or > music album) rather than from the CoverArt itself? > > On 20 Oct 2016 2:14 am, "Thad Guidry" <thadguidry@gmail.com> wrote: > >> So...There's this... >> https://bib.schema.org/CoverArt >> that has an 'artist' property. >> >> That 'artist' property in actuality could be a 'cover artist' that could >> be mapped to https://www.wikidata.org/wiki/Property:P736 >> >> But I have no reliable way to do that because we don't have Aliases at a >> Type/Property level. Bummer. >> >> How do we fix or solve this ? >> >> >>
Received on Saturday, 22 October 2016 19:45:11 UTC