An Association classifies a set of tuples representing links between typed instances, e.g., two instances of classes at runtime.

# Aggregation vs Composition
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@@ -14,3 +13,5 @@ In both aggregation and composition object of one class "owns" object of another
* Composition implies a relationship where the child cannot exist independent of the parent. Example: House (parent) and Room (child). Rooms don't exist separate to a House.
Example: 