Proposal:Subject

Subject
Proposal status:	Draft (under way)
Proposed by:	AlephNull
Tagging:	subject:wikidata=* Data item
Applies to:	, , ,
Definition:	Disambiguation of subject=*
Statistics:
Draft started:	2021-11-13

Rationale

Many memorials are also artworks, but the subject of the memorial and the subject of the artwork may not be the same (see examples below). Even if the artwork depicts the subject of the memorial, it may also depict additional things (see examples).

subject=*	memorial:subject=*	artwork:subject=*	museum:subject=*

subject:wikidata=* (arguably de facto)	memorial:subject:wikidata=*	artwork:subject:wikidata=*	museum:subject:wikidata=*

Related is the key artwork_subject=*.

TODO should museum=* be used instead of or in addition to subject tags? Seems to have better documentation.

museum=*

TODO cemetary=grave uses name=* for the human readable name of the person buried, both subject:wikidata=* and buried:wikidata=* seem in use for linking the QID to that name.

buried:wikidata=*

Tagging

subject=* and subject:wikidata=* remain general purpose tags that link to what a thing is about. For example, this is useful if a more specific Wikidata tag is unavailable (for example the entry needed for flag:wikidata=* may not exist). Values should be formatted like Wikidata titles: generally lowercase with spaces as delimiters, proper nouns in title case. This reflects current majority usage.

For artworks and memorials the namespaced version should be preferred.

Examples

Image	tagging
	name=Brassert-Denkmal historic=memorial memorial=statue memorial:subject=Hermann Brassert memorial:subject:wikidata=Q1388951 memorial:subject:wikipedia=de:Hermann Brassert artwork:subject=Clio artwork:subject:wikidata=Q103968 ...
	name=Ludwig-Erhard-Brunnen amenity=fountain historic=memorial memorial=sculpture memorial:subject=Ludwig Erhard memorial:subject:wikidata=Q2496 artwork:subject=Ludwig Erhard;Deutsche Mark;Bundesadler artwork:subject:wikidata=Q2496;Q16068;Q133018 ...
	name=117er Ehrenhof historic=memorial memorial=war_memorial memorial:subject=Infanterie-Leib-Regiment Großherzogin Nr. 117 memorial:subject:wikidata=Q1662273 artwork:subject=Hessian Lion subject=World War I subject:wikidata=Q361 ...
	name=MoMA official_name=The Museum of Modern Art wikidata=Q188740 tourism=museum museum=art museum:subject=modern art;contemporary art museum:subject:wikidata=Q38166;Q186030 ... The tag museum=art specifies the type of museum, which we can then refine with museum:subject=*.
	man_made=flagpole flag:name=European Wind Energy Association flag:type=organisation subject=European Wind Energy Association subject:wikidata=Q1406826 Since there is no standalone Wikidata entry for the flag we omit flag:wikidata=* and instead link to the Wikidata entry of the organization using the subject.

Rendering

Subject values may be used for map labels, e.g. when no suitable name=* tag is present. Renderers may also use the subject tags in infoboxes (e.g. when clicking on a memorial or artwork), e.g. by including parts of the Wikipedia article on the subject(s) in the user’s language, if present.

Features/Pages affected

Improve the documentation of subject=* by including more examples. Extend the wiki page for subject=* with the namespaced versions. This affects historic=memorial, tourism=artwork, tourism=museum, tourism=gallery, etc.

Comments

Please comment on the discussion page.