Wikidata:Property proposal/ ID

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Originally proposed at Wikidata:Property proposal/Authority control

DescriptionIdentifier for a photographer, in the Dutch database
Data typeExternal identifier
Domainperson, organisation
Allowed values\d+
ExampleMaria Austria (Q19509427)3023
Planned useAdd dataset to Mix'n'Match and add identifiers to as many photographers as possible
Formatter URL$1
Robot and gadget jobsMix'n'Match

Very extensive Dutch photographers' database, which includes lots of biographical data, bibliography, etc. Spinster 💬 19:14, 26 August 2016 (UTC)

  • Symbol support vote.svg Support. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 20:09, 26 August 2016 (UTC)
  • Symbol support vote.svg Support. Thryduulf (talk) 22:48, 26 August 2016 (UTC)
  • Pictogram voting comment.svg Comment When investigating how to scrape this website, I noticed that the IDs are identical to the RKDartists ID (P650) ones. is a subset of the RKDartist photographers only - approx. 35,000 photographers from the Netherlands or with some kind of relationship to the Netherlands (once exhibited there, for instance). Not all persons with RKDartists ID (P650) have an official (indexed) entry in; and offers additional information in some cases (some written biographies, information where archives are held...). So I think it does definitely warrant its own property. Spinster 💬 08:01, 27 August 2016 (UTC)
    • So what IDs to people only in have? Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 18:34, 28 August 2016 (UTC)
      • @Pigsonthewing: There are no people only in All people in have an ID in RKDartists as well. (Not vice versa.) Spinster 💬 10:32, 29 August 2016 (UTC)
        • In that case, Symbol oppose vote.svg Oppose. Add a second formatter URL to RKDartists ID (P650), marking the original FURL as preferred. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 12:19, 2 September 2016 (UTC)
          • I disagree. Not all people in RKDartists are indexed and enhanced on; only a small number. only contains photographers, with additional metadata about them (biographies, bibliography, information where their archives are held) which is only available on for those specific photographers. Having a separate property on Wikidata for this would allow querying specifically for these people and then clicking on to find this specific metadata - pretty useful for any researcher or editor specifically interested in photographers and photography. So I keep pleading for a separate identifier. Spinster 💬 15:21, 2 September 2016 (UTC)
          • (This is when you'd use a boolean to indicate whether this URL is valid too for the already recorded ID instead of recording it twice. – Máté (talk) 21:01, 3 September 2016 (UTC))
            • Do we already do this for other properties? If so, what does this look like? How would you query this? If a researcher of, for instance, photography, would like to query all Wikidata items with external identifiers in photographers' databases, how would that query look like if is treated differently than, say, Photographers' Identities Catalog ID (P2750)? Spinster 💬 18:42, 4 September 2016 (UTC)
              • No, I don't think we've done this. What we have done, is creating sub-properites of external IDs (like EIDR identifier (P2704) of DOI (P356)). I checked and those who (I suppose) know more about these things did argue, that modelling external IDs in a different way than with the external ID datatype causes too much complexity, and storing the ID twice is still preferable to a pseudo-boolean qualifier that I mentioned. – Máté (talk) 19:34, 4 September 2016 (UTC)
  • Symbol support vote.svg Support per Maté. Strakhov (talk) 12:04, 15 September 2016 (UTC)
  • Symbol support vote.svg Support per Spinster. Multichill (talk) 19:29, 5 October 2016 (UTC)
  • @Spinster, Máté, Strakhov, Multichill, Thryduulf: @Pigsonthewing: ✓ Done ArthurPSmith (talk) 14:07, 7 October 2016 (UTC)