User:Joshbaumgartner/property

Structure

Properties are used for various purposes on WD:

Identifier

see main page: identifier

Identifiers are properties used to attach values that the world uses to identify the subject. The name of a person, designation for an aircraft model, and ISBN number for a book are all examples of identifiers. Most of the authority control properties are identifiers.

Classifier

see main page: classifier

Classifiers are properties used to establish a subject's position in the overall taxonomy of Wikidata. instance of (P31) and subclass of (P279) are the primary classifiers in the WD system, though several topic-specific classes are also used.

Relator

see main page: relator

Relators are properties used to establish a subject's relationship with another item. Sometimes these can be reflexive, and other times not.

Descriptor

see main page: descriptor

Descriptors are properties used to attach values that define the subject. Measurements using quantities with units constitute a large body of these properties. There is some overlap with relators as for example describing an aircraft as being a biplane will also establish a relationship between that aircraft and the concept 'biplane'.

• Flight hours
  • Carrier Air Wing Three (Q1045063) > flight hours > 12,401
    • Start date > 18 February 2021
    • End date > 13 July 2021
• Planned production quantity
  • AN/ALQ-231(V)4 Intrepid Tiger II (Q108738897) > planned production quantity > 42
  • Point in time > 2020s
• Sorties
  • Carrier Air Wing Three (Q1045063) > sorties > 6100
    • Start date > 18 February 2021
    • End date > 13 July 2021

Meta-property

see main page: meta

Meta-properties are properties used to contain data relating the Wikimedia elements of the subject.