Module 2.1: Object Relationship | Association

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7 Terms

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Object Relationships

Connections between objects or classes that describe how they interact, depend on one another, or share characteristics.

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Association
Inheritance

Two Ways Objects Relate

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Association

A relation between two objects where one object uses another object, and/or vice versa.

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Has-a Relation

Association

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Composition
Aggregation

Types of Association

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Composition

It represents strong ownership. A relationship where one object relies on the existence of another object.

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Aggregation

It represents a loose association. A relationship between two independent objects where one can exist without the other.