A classifier is a classification of instances it describes a set of instances that have something in common. A classifier can have features that characterize those instances.
A Classifier is an abstract view of the most important metaclasses such as Class, UseCase, Actor Component and Node. A Classifier notably factorizes the aggregation to features. The classifier can act as a structured classifier (as defined in UML2.0). In that case, its internal structure, which expresses its configuration in terms of parts and ports, is defined through a dedicated Collaboration. A Classifier is owned by a NameSpace.
Classes parentes :
Diagrammes de classes : Associations :