Association and aggregation

[Pradeep bhatt]

What is the difference between association and aggregation ?
Is Aggregation a stronger form of association?

[Awais Bajwa]

Association is sometimes known as bidirectional relationship in which both classes know each other. Aggrigation is a kind of association in which whole/part relationship lies.
Regards
Awais

[Pradeep bhatt]

Association is sometimes known as bidirectional relationship in which both classes know each other.

Even in aggregation both the classes can know each other and can also be able to navigate.

[Fintan Conway]

Originally posted by Pradeep Bhat:
What is the difference between association and aggregation ?
Is Aggregation a stronger form of association?

Aggregation is a more specialised form of association. Aggregation tells you that the relationship is a whole/part association.

[Ilja Preuss]

Originally posted by Fintan Conway:

Aggregation is a more specialised form of association. Aggregation tells you that the relationship is a whole/part association.

Yes. Which actually means that there is no cycle in the object graph allowed - the whole must not be part of itself.