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And in this case, the correct answer is that class

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diagram and deployment diagrams are the only two UML structural

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diagrams among these four. So the answer to this quiz

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was probably pretty obvious, but I wanted to use it

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also to stress, once more, the difference between structural and

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behavioral diagrams. Structural diagrams provide the static picture of the

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system being modeled, presented from different perspective. For example, from

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the perspective of the class diagram and of the deployment diagram.

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Behavioral diagrams, on the other hand, provide information on

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the dynamic behavior of the system being modeled, also

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presented from different perspective. So it's important to be

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able to distinguish between these two types of diagrams. This

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concludes this lesson on object orientation and UML. But

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I encourage you to look at the references provided

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in the class notes, in case you want to

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know more about object orientation, object oriented analysis, and UML.