An association is a “using” relationship between two or more objects in which the objects have their own lifetime and there is no owner . As an example, imagine the relationship between a doctor and a patient. A doctor can be associated with multiple patients.19 Kas 2018
Read moreWhat is aggregation association and composition?
Aggregation is a weak Association. Composition is a strong Association. Aggregation means one object is the owner of another object . Composition means one object is contained in another object. The direction of a relation is a requirement in both Composition and Aggregation.12 Oca 2022
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