Discussion of Past Year Paper Part 2

[ZhangAnli]

Hello would just like to check my answers with you guys for this question's sequence diagram as well :)

[glatiuden]

Hi! It looks fine but these are some things I have noticed but I'm not 100% if they are correct, please do correct me if I am wrong!

• new keywords should be omitted in Sequence Diagram
• Person("Adam", "friend") and addPerson(p) should be within the loop box itself, otherwise I think it might be misinterpreted as the methods are only executed once?

[ZhangAnli]

Ok I see, thanks!

[kouyk]

For this diagram, I think the constructor activation bar of Person can be extended a little longer, such that it is activated longer than the constructor of Tag. The Tag might not need to be named. Since the Person object is named, it would be better if it's also returned as well, especially since it is used by the external caller as an argument.

[damithc]

Also, this exact question was discussed during tutorial 8. You may want to watch the week 8 tutorial recording.