Can a use case use both extend and include? For example like the "Take Advanced Knowledge Quest" use case in the picture below.
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Does it make sense in your problem domain?Robert Harvey– Robert Harvey2023-08-16 12:17:25 +00:00Commented Aug 16, 2023 at 12:17
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Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking.Community– Community Bot2023-08-16 17:25:56 +00:00Commented Aug 16, 2023 at 17:25
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@Community the question is about the validity of an UML model and seems specific enough for an answer.Christophe– Christophe2023-08-16 21:23:39 +00:00Commented Aug 16, 2023 at 21:23
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1 Answer
In general: of course (when it makes sense, as Robert Harvey commented).
If it makes sense in this specific case is a different question. An "upgrade to premium" may be a precondition of being allowed to "take an advanced knowledge quest", but that does not make the "upgrading to premium use case" automatically part of the "advanced knowledge quest use case" (at least, that's what I imagine when I read these terse descriptions).
