Dario's 1-3 is fine by me. Rather than P361 (part of), I think - as
James Heald - that P972 (catalog) would be better. It is also used for
artworks, for instance,
https://www.wikidata.org/wiki/Q44015154 P972
https://www.wikidata.org/wiki/Q42661788
I see P972 and the associated identifier P528 as a kind of lightweight
external identifier.
If the external dataset is available in RDF, then I suppose
skos:exactMatch (P2888) can be used.
For some items available in other databases I have used "external data
available at" P1325. But the semantics of that require some data at the
other end.
---
Finn Årup Nielsen
http://people.compute.dtu.dk/faan/
On 11/25/2017 02:16 PM, James Heald wrote:
Like others in this thread, I would caution *against* overloading P31
"instance of" if possible.
When a somewhat similar issue came up, re how to artists that were of
interest the the "Black Lunch Table" project
https://www.wikidata.org/wiki/Q28781198 that works on coverage of visual
artists of the African diaspora, the solution adopted (after quite a
vigorous debate at Project Chat) was to use property P972 "catalog" with
the value Q28781198 to mark artists that were of interest to the project.
A similar approach could be used here, if a project has a list of works
of interest, that it would be valuable to record inclusion in.
Best regards,
James.
On 25/11/2017 04:42, John Erling Blad wrote:
Implicit heterogeneous unordered containers where members sees a
homogeneous parent. The member properties should be transitive to
avoid the
maintenance burden, like a "tracking property", and also to make the
parent
item manageable.
I can't see anything that needs any kind of special structure at the
entity
level. Not even sure whether we need a new container for this, claims are
already unordered containers.
On Sat, Nov 25, 2017 at 1:25 AM, Andy Mabbett <a...@pigsonthewing.org.uk>
wrote:
On 24 November 2017 at 23:30, Dario Taraborelli
<dtarabore...@wikimedia.org> wrote:
I'd like to propose a fairly simple solution and hear your feedback on
whether it makes sense to implement it as is or with some
modifications.
create a Wikidata class called "Wikidata item collection" [Q-X]
This sounds like Wikimedia categories, as used on Wikipedia and
Wikimedia Commons.
--
Andy Mabbett
@pigsonthewing
http://pigsonthewing.org.uk
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