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Whats the difference between the doted arrow line (Dependency) and the solid arrow line (Using) ? Also is a aggregation (diamond shaped line) a implication that there are multiple objects of a class.

Like "Wheel is a Part of Car" , are there multiple wheels. The name aggregation confuses me a bit

John Sace
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  • Better forget about aggregation at all. It's use is litte and the confusion it adds is big. – qwerty_so Aug 12 '23 at 15:09
  • We use it in every UML diagramm at the University so just forgeting about it is not realy an option. – John Sace Aug 12 '23 at 15:33
  • UML and university is kind of a scary combination. What they teach is usually on a low/bad level. Just judging from the questions that arive here. – qwerty_so Aug 12 '23 at 17:08

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