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-boun...@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.neub...@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 >> >> _______________________________________________ >> Wikidata mailing list >> Wikidata@lists.wikimedia.org >> https://lists.wikimedia.org/mailman/listinfo/wikidata > _______________________________________________ > Wikidata mailing list > Wikidata@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata > _______________________________________________ Wikidata mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata
