[Uml-devel] Re: [Uml-user] aggregation / composition

[Jonathan Riddell]

> > I've removed the restrictions on composition and aggregation.  Are the
> > restrictions on implementation/realisation correct?
> >   //one connected to widget only (a or b)
>
> just remember that on composition/aggregation relationships, you
> shouldn't be able to specify navigability. most of the other tools get
> this wrong.  c/a defines navigability from the container to the
> containee. containee's don't know about the container. if they do,
> it's another type of relationship.

Do you mean that navigability is impled rather than not specified at all?

Jonathan Riddell