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

[Oliver Kellogg]

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




------- Additional Comments From okellogg users sourceforge net  2005-01-02 16:40 -------
Marcus Alanen wrote:
> AssociationEnds should further have 
> - isNavigable = "(true|false)" 
> - type = "id"  where id is the id of the class where we point to
> - ordering = "(unordered|ordered)" if order of elements matters
> - aggregation = "(none|aggregate|composite)" (nothing, empty diamond,
>  black diamond) 

Just to make sure I am understanding, here are my assumptions:

1) Simple (undirected) association between class A and class B

AssociationEnd A:  isNavigable="true"
AssociationEnd B:  isNavigable="true

2) Directed association from class A to class B
   (arrowhead at B)

AssociationEnd A:  isNavigable="false"
AssociationEnd B:  isNavigable="true"

3) Aggregation: A has a reference to B
   (hollow diamond at A)

AssociationEnd A:  isNavigable="false" aggregation="aggregate"
AssociationEnd B:  isNavigable="true" aggregation="none"

4) Composition: A contains an instance of B
   (solid diamond at A)

AssociationEnd A:  isNavigable="false" aggregation="composite"
AssociationEnd B:  isNavigable="true" aggregation="none"

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

Okay?