Hi ! My all dear friends
First,thanks for your all replies .
Second, let me complete my question.
Suppose that :
X is a system and have two subsystem Y,Z
X have a use case and its name is X1
Y have a use case and its name is Y1
Z have a use case and its name is Z1
X1 uses Y1,Z1 for its goals.
Now my question :
Is X actor of Y1,Z1 (a system can be an actor) or X1 (uses/includes) Y1,Z1?
I think X1 (uses/includes) Y1,Z1 because Y,Z are not external systems.
How do you think ? What is your idea ?
Best Regrads
Mehran Kavand
Informatic Services Corporation (ISC Co.)
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of �nder �rnek
Sent: lundi 8 janvier 2001 20:11
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: (ROSE) I have a question about Use Case modeling and
Diagrams .
You suppose that X is a system and has two subsystems Y and Z. The
conclusion
is that you have a "knowledge" of the functionality of X. Otherwise you
can't conclude
that Y and Z are the subsystems of X. Another point is that you suppose that
X,Y,Z
are systems and have their own Actors and Use Cases. It means that you have
made
a requirements analysis and know what these systems should do.
So, on the static view you can use aggregation to draw these relation. On
the Use Case
view you needn't to model the system's architecture as a whole part. It's
better to use an
iterative and incremental refinement process.
Regards,
�nder
[EMAIL PROTECTED] schrieb:
> I assume that if you're building it, then it doesn't exist yet.
>
> Models of each system may exist.
>
> So my question is, how can you build a model of a subsystem if you don't
> know the functionality of the parent system?
>
> Les.
>
>
> �nder �rnek
> <[EMAIL PROTECTED]> To:
[EMAIL PROTECTED]
> Sent by: cc:
[EMAIL PROTECTED]
> owner-rose_forum@ra Subject: Re: (ROSE) I
have a question about Use Case modeling and Diagrams .
> tional.com
>
>
> 01/08/2001 06:43 PM
> Please respond to
> �nder �rnek
>
>
>
> How can a system (X) exists without its subsystems (Y,Z) ?
>
> Regards,
> �nder
>
> [EMAIL PROTECTED] schrieb:
>
> > How do you know what's in Y and Z, if you haven't modeled X yet?
> >
> > Les.
> >
> >
> > Prabhusivakumar
> > <Prabhu@paragonsolu To: "'Mehran Kavand'"
> <[EMAIL PROTECTED]>, "Rose forum (E-mail)"
> > tions.com> <[EMAIL PROTECTED]>
> > Sent by: cc:
> > owner-rose_forum@ra Subject: RE: (ROSE) I
> have a question about Use Case modeling and Diagrams .
> > tional.com
> >
> >
> > 01/08/2001 01:30 AM
> > Please respond to
> > Prabhusivakumar
> >
> >
> >
> > Hi,
> > I think Obviously systems Y and Z first (if they are self sufficient)
> >
> > Regards
> > Prabhu
> >
> > > -----Original Message-----
> > > From: Mehran Kavand [SMTP:[EMAIL PROTECTED]]
> > > Sent: Saturday, January 06, 2001 11:30 PM
> > > To: Rose forum (E-mail)
> > > Subject: (ROSE) I have a question about Use Case modeling
and
> > > Diagrams.
> > >
> > >
> > > Hi ! Every Body !
> > >
> > > I have a question about Use Case modeling and Diagrams.
> > >
> > > We all know that Use Cases are about capturing HIGH-LEVEL,
USER-CENTRIC
> > > requirements for the purpose of scoping the project and Use Case
> Diagrams
> > > communicate and document specific ways of using the system from a
> user's
> > > (actor's) perspective.
> > > Now,suppose that X is a system and has two subsystem (Y,Z).We want to
> > > develop X, but First design and develop Y,Z.
> > >
> > > My Question :
> > > We Must model the use cases of X or (Y,Z) ?
> > >
> > > ( Note that X,Y,Z all are System and have their Actor and Use cases. )
> > >
> > > Best Regards
> > >
> > > Mehran Kavand
> > > Informatic Services Corporation(ISC Co.)
> > >
> > >
> > >
> > >
> > >
> > >
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