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How does Class Designer deal with associations and compositions?

I have seen there is only one type of association, and as u link 2 classes it
automatically creates a property referencing to the other class. Well, does
this cover all relationship between 2 classes (e.g. employee x department,
customer x order etc) ?
If so why then UML has 2 classical dif types of associations (aggregations
and compositions) ?

Could someone help me please on this topic?

Thanks a lot.
Sep 3 '06 #1
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