See Help:Modelling/Home for notation, intended audience.
The following subsections cover various domains. The intent here is:
- to provide examples of modeling items in these various domains.
- to indicate where to find further discussion of modeling items in these domains.
- 1 Religions and ancient religions
- 2 Sciences
- 3 People
- 4 Professions and occupations
- 5 Organizations
- 6 Sports
- 7 Man made stuff
- 8 Languages
- 9 Animal husbandry
- 10 Politics
- 11 Material culture
Religions and ancient religions
Typical problems, as things currently stand:
- Question but not (in fact, not ), nor
- Question Similarly, , with identical problems
- Question Green Man (Q1460159) has essentially no properties, not even instance of (P31)
- Question druid (Q131081) has no property to tie it to a particular religion or tradition, and we have the statement , but is not a class.
- Jacobi polynomials (Q371631) some kind of polynomia
There is a consensus that an individual person has only one instance of (P31) value: human (Q5). While in common parlance we say a person is a politician, female, Norwegian, Muslim, etc., all of these should be expressed by properties such as occupation (P106), sex or gender (P21), country of citizenship (P27), religion (P140), etc.
Awards, prizes ...
As of June 2018, this area probably needs improvement in its standards. ArthurPSmith remarks, "I think what's done right now regarding awards is pretty inconsistent/arbitrary. For example Fritz London Memorial Prizes (Q246592) (along with many other cases like this) is both a subclass of and an instance of award! IEEE Emanuel R. Piore Award (Q5970360) is a direct subclass of award, but also an instance of a subclass of award, which is also stated to be a metaclass, so that's odd. The value type constraint on award received (P166) allows the value to be an "instance or a subclass". So it would be nice to pick a consistent way to do this that makes sense across all of these cases." If anyone is interested in sorting this out, you might try working with Wikidata:WikiProject Award.
- Example items
- Academy Awards (Q19020)
- Turing Award (Q185667)
- Nobel Prize (Q7191)
- Norwegian Nobel Committee (Q946621)
- Nobel Prize in Physiology or Medicine (Q80061)
- Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel (Q47170) is not properly speaking a Nobel Prize, but
- Alvin Eliot Roth (Q28542) and Lloyd Shapley (Q244739) : 2012 Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel (Q47170), represented for the former by:
- Academy Awards (Q19020)
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Professions and occupations
See Wikidata:WikiProject Occupations and professions, but as of 2018-06 that project looks a bit stalled out.
- field of work (P101) is often useful here, and should be understood broadly (e.g. it can be used for the focus that underlies a voluntary or fraternal organization):
- Wikidata:WikiProject Athletics
- Wikidata:WikiProject Baseball
- Wikidata:WikiProject Basketball
- Wikidata:WikiProject Chess
- Wikidata:WikiProject Cycling
- Wikidata:WikiProject Diving
- Wikidata:WikiProject Motorsports
- Wikidata:WikiProject Olympics
- Wikidata:WikiProject Professional Wrestling
- Wikidata:WikiProject Rowing
Man made stuff
- Question how to model prototypes such as Scarab (Q722852)
Question Is there any relevant and active WikiProject?
While an institution and the building where it is housed are often conflate into a single item, it is often useful to have separate items for the two even when they have the same name, especially if the institution has had more than one location, or the building has had more than one use. For example:
- Seattle Asian Art Museum (institution)
- Seattle Asian Art Museum (building)
- Relation between the two
- with the qualifier
- with the qualifier
- Prior use of the building
- with the qualifiers
- steam locomotive (Q171043)
- 0-10-0 (Q3517951)
- tank locomotive (Q785745)
- 0-10-0T (Q26185325)
- PO 5501 to 5525 (Q2806531)
- Inlet cone (Q2918843)
- jet engine (Q178777)
- Boeing 747 (Q179)
- Boeing 747-100 (Q9384384)
- C5-FBS (Q21077767)
Typography and alphabets
There is a Wikidata:WikiProject Alphabet, but it is not very active as of June 2018.
Fonts and typefaces
- typeface (Q17451)
- font (Q4868296)
- glyph (Q36975)
- individual typefaces
- physical representation of an individual character in an individual typeface
- a couple of good models of what properties to consider when creating an item for a language:
- vocabulary of a specific language:
A lot of items and challenges here, like first-level administrative country subdivision (Q10864048) or Administrative division of the Kingdom of Poland (Q4683505)