Explain about aggregation?
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Answer / Prakash Singh
Aggregation in UML is a type of Association that represents a 'whole-part' relationship. In this relationship, the whole can exist without its parts, but the parts cannot exist without the whole. The 'whole' has control over its 'parts'. Aggregated objects have their own identity and lifecycle, separate from the 'whole'. It is represented using a filled diamond ('1') at the end of the association line.
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