Aggregation vs Composition. Aggregation implies a relationship where the child can exist independently of the parent . For example, Bank and Employee, delete the Bank and the Employee still exist. whereas Composition implies a relationship where the child cannot exist independent of the parent.21 Oca 2015
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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.
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