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ICE question on package diagram

 
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Hi, I am new to UML.
Why is the answer for the following question B. I still not sure about it. Any insights?

2. During implementation, the development team decides to use a third party utility to provide some of the required functionality.
What OOAD artifact would MOST likely reflect this change?
(A)Activity diagram
(B)Package diagram
(C)State diagram
(D)Interaction diagram
 
Anonymous
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Nobody can help me on this? Why Package Diagram? How about interaction diagram? If third party functionality is added, we still need to show the interactions between original objects and added objects, right? Just confused.
 
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Mhh, I would have said B just because its main purpose *is* to show the different packages (and therefore also thirdparty libraries) involved in the system.
But I also think that the question isn't a very good one - and one with quite low applicability in practice. YMMV.
 
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