[Tagging] Feature Proposal - Voting - artwork_subject=sheela-na-gig

[Minh Nguyen]

Vào lúc 06:00 2022-03-23, Jeroen Hoek đã viết:
> On 23-03-2022 13:30, Marc_marc wrote:
>> is not a thing about a "different application", it's about a mistake 
>> in the tag structure : if you want to add a :wikidata for the tag A,
>> the related tag is A:wikidata
>> so if you want to add a wikidata for artwork_subject, the correct tag is
>> artwork_subject:wikidata
> 
> This usage may have originated from this edit on the wiki by Minh Nguyen:
> 
> https://wiki.openstreetmap.org/w/index.php?title=Key%3Aartwork_subject&type=revision&diff=2001045&oldid=1812553
> 
> It does seem to go against the common way :wikidata, :wikipedia, 
> :website, etc. suffixes are used. Should this be fixed in the 
> documentation?

Sorry, this was copypasta on my part. I meant to link to subject=*, not 
subject:wikidata=*. I've fixed the typo; sorry for the confusion. [1]

The two keys are similar, but artwork_subject=* is only applicable to 
artwork and seems to be a broad categorization of the artwork, at least 
in popular usage. By contrast, subject=* has long been used on a variety 
of features and indicates the subject that the feature depicts, 
discusses, symbolizes, commemorates, or otherwise pertains to. As a 
freeform key, its value can be as broad as "arts" or as specific as the 
Virgin Mary.

Because the set of possible values of subject=* is unbounded, the 
combination with subject:wikidata=* is especially appropriate. But if 
artwork_subject=* is limited to a handful of values as the documentation 
implies, then artwork_subject:wikidata=* would have little benefit 
except to clarify a very rare, exceptional value that would otherwise be 
inscrutable to other mappers. (denomination:wikidata=* is currently used 
in that fashion.) If artwork_subject=sheela-na-gig is approved, then the 
data item for it can link to Q509424 without needing to introduce that 
value into the database.

Incidentally, there's a draft proposal for more specific keys than 
subject=* when an artwork or other feature depicts something other than 
that which it commemorates. [2]

[1] https://wiki.openstreetmap.org/wiki/Special:Diff/2297295
[2] https://wiki.openstreetmap.org/wiki/Proposed_features/Subject

-- 
minh at nguyen.cincinnati.oh.us