c
class
Collection of items in an ontology defined by common characteristics
Also known as concept · class or metaclass of Wikidata ontology · (meta)class · collection · type of item/s · category
- Instance of
- metaclass
- , variable-order class
- , concept
- +1 more
- Subclass of
Overview
All data
50 statements · 8% with external sources · numbers in brackets are citations
- Different from
- Class criterion used: descriptive page and disambiguation page have to be in different items · applies to name of subject: class
- Concept criterion used: descriptive page and disambiguation page have to be in different items · applies to name of subject: concept
- Třída criterion used: descriptive page and disambiguation page have to be in different items · applies to name of subject: třída
- class
- class
- class
- collection
- group
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- Native label
- concept nature of statement: sometimes
1
Sources- 1.“Ontology Development 101: A Guide to Creating Your First Ontology”perso.liris.cnrs.fr/alain.mille/enseignements/Ecole_Centrale/What%20is%20an%20ontology%20and%20why%20we%20need%20it.htmRetrieved 2023-11-08
- concept nature of statement: sometimes
- Has characteristic
- criterion has effect: containment
- Wikidata usage instructions
- A class in Wikidata, e.g., human (Q5), watercraft (Q1229765), watercraft type (Q16335899), or class (Q16889133) itself, is an entity that can have other entities that are an instance of (P31) of it. A class thus can have other classes that are a subclass of (P279) of it. All classes are implicitly an instance of (P31) class (Q16889133). These implicit instance of (P31) statements are not all observable in Wikidata. Only a very few classes should be be explicitly an instance of (P31) or a subclass of (P279) class (Q16889133). For any regular class, including metaclasses, the implicit relationship suffices even if there is no other class that can be found for the class to be an instance of (P31) or subclass of (P279). Most classes are fixed-order classes, e.g., human (Q5) whose instances are all individuals or ship type (Q2235308) whose instances are all classes of individuals,and can be explicitly stated to be an instance of (P31) the fixed-order class, here first-order class (Q104086571) and second-order class (Q24017414), respectively.
- Model item
- variable-order class applies to use with property: subclass of
- fixed-order class applies to use with property: subclass of
- Opposite of
- concrete object criterion used: concreteness
On other databases
6 identifiers linking class across the web's reference databases