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- Is-a abstract "In knowledge representation, object-oriented programming and design, is-a or is_a or is a (subsumption) is a relationship where one class A is a subclass of another class B (and so B is a superclass of A).In other words, Type A is a subtype of type B when A’s specification implies B’s specification. That is, any object (or class) that satisfies A’s specification also satisfies B’s specification, because B’s specification is weaker.The is-a relationship is contrasted with the has-a relationship, which constitutes the holonym-meronym hierarchy. It may also be contrasted with the instance-of relation: see "type-token distinction" and "type-token relations". When designing a model (e.g., a computer program) of the real-world relationship between an object and its subordinate, a common error is confusing the relations has-a and is-a.".
- Is-a wikiPageExternalLink Brachman83.
- Is-a wikiPageExternalLink HainautHEHR96.html.
- Is-a wikiPageID "294441".
- Is-a wikiPageRevisionID "604766735".
- Is-a hasPhotoCollection Is-a.
- Is-a subject Category:Abstraction.
- Is-a subject Category:Knowledge_representation.
- Is-a subject Category:Object-oriented_programming.
- Is-a comment "In knowledge representation, object-oriented programming and design, is-a or is_a or is a (subsumption) is a relationship where one class A is a subclass of another class B (and so B is a superclass of A).In other words, Type A is a subtype of type B when A’s specification implies B’s specification.".
- Is-a label "Is-a".
- Is-a label "Is-a".
- Is-a label "Is-a".
- Is-a sameAs Is-a.
- Is-a sameAs m.02p1d79.
- Is-a sameAs Q1101080.
- Is-a sameAs Q1101080.
- Is-a wasDerivedFrom Is-a?oldid=604766735.
- Is-a isPrimaryTopicOf Is-a.