Overall, how do we deal with this duplication of information (on the
item about the identifier and on the corresponding Wikidata property)?
We do need to have items about unique identifiers (because they can have
sitelinks) so would it make sense to make sure every Wikidata property
for an ID is matched to a corresponding item about that id?
The problem is that many of our ids are not even advertised as UIDs by
the people who mint them (many are just a primary key of some database
leaking out from a URL pattern), so it would feel quite artificial to
have items about these (but that's just my gut feeling).
Antonin
On 21/02/2018 12:32, Neubert, Joachim wrote:
Well - P921 is described as "primary topic of a
work", and is an instance of WD property for items about works. Two possible issues:
- "domain" is a much clearer restriction than "main subject/primary
topic" - which implies that there may be other secondary subjects. To identifiers,
normally the more formal restriction applies.
- defining an identifier as a work seems a bit stretched - yet, no domain is given here
:-)
So perhaps a new property is needed?
Cheers, Joachim
-----Ursprüngliche Nachricht-----
Von: Wikidata [mailto:wikidata-bounces@lists.wikimedia.org] Im Auftrag von
Andy Mabbett
Gesendet: Mittwoch, 21. Februar 2018 13:16
An: Discussion list for the Wikidata project
Betreff: Re: [Wikidata] Metadata about Persistent Identifiers
On 21 February 2018 at 12:03, Neubert, Joachim <J.Neubert(a)zbw.eu> wrote:
So, we should be able to formally specify the
"domain" of identifiers.
Perhaps that could be derived from the type constraints in linked
properties, but I think it would make sense as an explicit property on the
identifier.
Main subject (P921) ?
I certainly don't think users should have to query properties to find metadata
about concepts.
--
Andy Mabbett
@pigsonthewing
http://pigsonthewing.org.uk
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