Properties in Wikidata
Erläuterung: https://www.wikidata.org/wiki/Help:Properties
Understanding Properties
"A property describes the data value of a statement and can be thought of as a category of data, for example "color" for the data value "blue". Properties, when paired with values, form a statement in Wikidata. Properties are also used in qualifiers." (https://www.wikidata.org/wiki/Help:Properties, 11.12.2021)
Creating properties
Before a new property is created, it has to be discussed and documented at Template:Ll first. When after some time there are some supporters, but no or very few opponents, the property is created by a Template:Ll or an Template:Ll (see List of property creators). After creation, relevant documentation is moved to the corresponding property's talk page, where usage of the property is further discussed. (https://www.wikidata.org/wiki/Help:Properties, 11.12.2021)
Editing properties
Property labels should be as unambiguous as possible so that it is clear to a user which property is the correct one to use when editing items and adding statements. Properties rarely refer to commonly known concepts but they are more constructs of the Wikidata with specific meanings. Unlike items, property labels must be unique.
Property descriptions are less relevant for disambiguation but they should provide enough information about the scope and context of the property so that users understand appropriate usage of the property without having to consult additional help.
Property aliases should include all alternative ways of referring to the property.
(https://www.wikidata.org/wiki/Help:Properties, 11.12.2021)