Relationship Association (UML)

Association in UML

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By Nishant Kumar

An association is a relationship that connects classes. Example of association is relationship between person and company. An association is rendered as solid line.

Adornments of association

Name: You can use Name to specify the nature of association.
Role: Each class has specific role that participates in the relationship. We can specify role to the classes involve in the relationship.
Multiplicity: It represents how many objects may be connected across an instance of an association.
Aggregation: It implies whole/part relationship where one class represents larger thing which consist of smaller things. 

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