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What is multiplicity for an association in UML?
Multiplicity can be set for attributes, operations, and associations in a UML class diagram, and for associations in a use case diagram. The multiplicity is an indication of how many objects may participate in the given relationship or the allowable number of instances of the element.
Which is multiplicity for an association?
Discussion Forum
| Que. | What is multiplicity for an association? |
|---|---|
| b. | The multiplicity at the target class end of an association is the number of instances that can be associated with a number instance of source class |
| c. | All of the mentioned |
| d. | None of the mentioned |
When to use aggregation and Association in UML?
The aggregation link is usually used to stress the point that Class A instance is not the exclusive container of Class B instance, as in fact the same Class B instance has another container/s. To sum it up association is a very generic term used to represent when one class used the functionalities provided by another class.
How is the composition relationship represented in UML?
As you can see from the example given below, the composition association relationship connects the Person class with Brain class, Heart class, and Legs class. If the person is destroyed, the brain, heart, and legs will also get discarded. Association relationship is represented using an arrow.
Which is a subtype of association relationship in UML?
The reflexive association is a subtype of association relationship in UML. In a reflexive association, the instances of the same class can be related to each other. An instance of a class is also said to be an object. Reflexive association states that a link or a connection can be present within the objects of the same class.
Which is a specific case of aggregation and composition?
Aggregation and Composition are subsets of association meaning they are specific cases of association. In both aggregation and composition object of one class “owns” object of another class. But there is a subtle difference: