Class Diagrams: Association End Owned by a Class

[rty]

According to http://www.uml-diagrams.org/association.html, it is fine to use the attribute notation for association end owned by a class to make it perfectly clear that the attribute is also an association end:



Unfortunately, I was not able to reproduce that using EA. I can create the dot notation, I can create the attribute notation, but EA can not see that those are identical.

Background: I want to create one diagram which shows a classes contents explicitly using not notations and visualize the contents using the attribute notation in other diagrams which just use the class. Is that possible?

[qwerty]

They did hide it well. Properties/Roles/Advanced/Owned

q.

[rty]

Hmm, I had this already activated. Without the owned property, EA does not show the dot notation.

I also have Direction set to Source -> Destination, Multiplicity to 1 and gave the target of the role a name:



But, in a different diagram, the class still appears without its owned attribute:

[Geert Bellekens]

Do you expect EA to automatically add the "owned" class to all diagrams that show the "parent" class?

That won't happen.
Maybe you should try using attributes instead of associations.

Geert

[rty]

A pity. Yes, that was exactly what I found at uml-diagrams.org.

The benefit of using associations would have been that all the juicy details (e.g. role names) are imho more visible and easier to recognize if only the diagram is used for communication.

Anyway, thanks a lot for the feedback!

[Modesto Vega]

Not entirely sure what you are trying to achieve with this, if you have a class called Person with 3 attributes: Fist Name, Last Name and Date of Birth. Are you trying to display this class in a diagram with 4 boxes - 1 Person, 2 First Name, 3 Last Name, and 4 Date of Birth - and an 4 associations between boxes 1 (Person) and boxes 2, 3 and 4 (with a dot at the end)?

AFIK, the only way to do this with EA is to create 4 classes: Person, First Name, Last Name and Date of Birth. AFIK, there is no way to achieve this with a single class.

It will be nice to be able to do it.