[Uml-devel] [Bug 56184] Umbrello XMI file format doesn't conform with uml13.dtd

[Marcus Alanen]

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http://bugs.kde.org/show_bug.cgi?id=56184        




------- Additional Comments From maalanen abo fi  2005-01-02 18:58 -------
> 1) Simple (undirected) association between class A and class B
> 
> AssociationEnd A:  isNavigable="true"
> AssociationEnd B:  isNavigable="true

Yes, OK.

> 2) Directed association from class A to class B
>    (arrowhead at B)
> 
> AssociationEnd A:  isNavigable="false"
> AssociationEnd B:  isNavigable="true"

I had to check... This is how we're doing it as well. OK.

> 3) Aggregation: A has a reference to B
>    (hollow diamond at A)
> 
> AssociationEnd A:  isNavigable="false" aggregation="aggregate"
> AssociationEnd B:  isNavigable="true" aggregation="none"

OK, although there's no reason why isNavigable couldn't be true
also at the A end. The way you do it above, you should draw it
as a hollow diamond at A, and an arrowhead at B. (In programming you
even quite often have this case, where the "B" objects have a pointer
to their parent "A" element)

> 4) Composition: A contains an instance of B
>    (solid diamond at A)
> 
> AssociationEnd A:  isNavigable="false" aggregation="composite"
> AssociationEnd B:  isNavigable="true" aggregation="none"

Ditto here.

> aggregation="none" if not stated otherwise,
> targetScope="instance" and ordering="false" in all cases.

OK.