Jeff:
You are misreading the diagram I think.
The service description isa description
is how it should be
Frank
On Nov 3, 2006, at 8:48 AM, Jeffrey A. Estefan wrote:
> Guys,
>
> I don't understand why there is an inheritance relationship between
> Description and Service. What this model is saying is that Service
> 'is-a' Description. Obviously, that is not true. I think we're
> mixing apples and oranges here.
>
> In the UML, inheritance represents hierarchy that translates to
> "specialization" when going down the inheritance hierarchy and
> "generalization" when going up the inheritance hierarchy. Again, I
> don't see the connection or reason to include Service as an element
> of the model for SD at this level of abstraction.
>
> More later. In the meantime, I'll be looking forward to seeing
> Duane's perspective.
>
> - Jeff
>
