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subject > hierarchy |
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hierarchy comparison table |
Subject | describe | implement using | help | has definition | improve | see also | is a subtopic of | is a synonym of | group | draw as | appear in |
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generalization | a relationship between classes in a class diagram | the extends keyword in Java | to avoid duplication of code | The relationship between a set of similar entities and another entity that contains the common aspects of those entities | reuse | generalization^2, generalization^3 | 5.4 - Generalization | classes into inheritance hierarchies | a small triangle pointing towards the superclass in a UML class diagram | instance diagram | |
inheritance hierarchy | The hierarchy formed by the generalization relationships of a set of classes | 2.5 - Organizing Classes Into Inheritance Hierarchies | isa hierarchy |