As I know from the "Building Web Application with UML" book by Jim Conallen,
we can divide the system into packages.
A use case model is often divided into packages, each of which owns a set of
use case or even other packages.
example :
I assume that if we have a large system (ex. Accounting Information System),
we can divide it into :
- GL package, AP package, AR package, etc
Each package may contain use case.
But I don't know whether the use case can be break down into smaller
(detailed) use case. Refer to the UML concept we can't break down use case
(it is not like DFD).
please corrent my assumption and give your idea ...
thanks
teguh
-----Original Message-----
From: Jie Zhao [mailto:[EMAIL PROTECTED]]
Sent: Friday, February 09, 2001 4:57 PM
To: '[EMAIL PROTECTED]'
Subject: (ROSE) When should the subsystems be identifed
>From my knowledge gained from Rational OOAD Course, subsystems will not be
identified until doing architecture design after finishing use case
analysis. My questions are:
1. If it is a quite large system, should/Could the subsystems be recognised
and the supersystem can be divided into a number of subordinate subsystems.
Then start to identify the actors, use cases for the supersystem and
individual subsystem respectively.
2. If the subsystems are found during architecture design as I have learnt
from OOAD course, do we need to identify the actors and use cases for each
subsystem before we start to design the subsystem, or as the OOAD course
suggested what we should do is to identify the subsystem elements within the
subsystem and distribute the subsystem behavior to subsystem elements.
Any thoughts, thanks!
Jie
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