Re: Strange Advice From Critics

My first thought was that I was drawing the diagram improperly and that
perhaps (as you point out) the arrows might be pointing in the wrong
direction.

My thought is that use-cases that exhibit greater levels of specificity
would radiate rightward from the more generic "Zoom" use-case, in the same
way that you might outline the requirements in a document.

Zoom
  - Zoom In
  - Zoom Out

However, either way that I draw it I still have the same problem.

Mark

On 4/19/07, Tom Morris <[email protected]> wrote:
>
> Both ASCII art and UML can be a little tricky to interpret, but it seems
> possible to me that you've got the generalization arrows going opposite
> the
> way you intend and, perhaps as a result, you've got the associations going
> to the wrong place.
>
> What do you think about drawing it like this?
>
>                 ___ UseCase 'ZoomIn'___
>                /                       \
> Actor 'User' -<                         |--> UseCase 'Zoom'
>                \___ UseCase 'ZoomOut'__/
>
> where the lines on the left are two associations from User to ZoomIn &
> ZoomOut and the lines on the right are generalization from those two use
> cases to the Zoom use case.
>
> Alternatively, you could have the use case Zoom include the sub use cases,
> depending on your exact semantics.
>
> Either way your still going to get an unwanted critic firing though.  It
> looks like it doesn't think  being used via Include, Generalize, Extend,
> etc
> to be enough consider an element not being orphaned.
>
> Tom
>
>
> -----Original Message-----
> From: Mark Fortner [mailto:[email protected]]
> Sent: Wednesday, April 18, 2007 12:30 PM
> To: [email protected]
> Subject: [argouml-users] Strange Advice From Critics
>
>
> I've been trying to use the critics as a way of insuring that my model is
> complete.  However, when creating use case diagrams I've noticed that the
> critics often provide me with feedback that doesn't make sense.
>
> For example, let's say you want to create the following use-cases
>
> Actor -- (Zooming)  --> (Zoom Into Rectangular Selection)
>                             --> (Zoom In By Increment)
>                             --> (Zoom Out By Increment)
>
> To create the first generalization of Zooming (Zoom Into Rectangular
> Selection), I click the Zooming use-case and drag the generalization arrow
> at the top of the use-case.  When I release the mouse, the new use case is
> created, and I enter it's name directly into the use-case ellipse.
>
> However, when I do this I get feedback telling me that I need to "Add
> Associations" to the usecase even though in my estimation I just created
> the
> association that I wanted.
>
> Am I missing something?
>
> Regards,
>
> Mark
>
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