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umlclass-diagram

About uml class diagram, how to put array as attribute

What I would like to ask is that if one class has a variable of array, should I include it as attribute along with the association or only the association?

So, for example, if I want to draw a simple diagram about association between professor and lecture, which side would be correct (Upper one or the lower one)? - Lecture may have more than one instructor

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Solution

  • You would use the dot notation with role names like this:

    enter image description here

    It means that Professor has * lectures as owned property and vice versa Lecture has 1..* teachers.

    The dot and role name are located "on the opposite site" of the owning class.