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Some questions on Usecases -
1. How
many classes should an application have in order to derive maximum benifit from
OO based approach & Usecase Modeling ? are there any parameters one should
consider while deciding on the number of UCs & Classes ?
2. Are
there any review criteria for Usecase Models? (Review Guidelines followed by the
Industry)
T.C.Balachandra
Tata Infotech Ltd.
ITPL,
Bangalore.
......yes traceability is important whether one uses
iterative approach or not. Occasionally, the usecase view may
contain some business usecases that might be redundant - so in such
a case, only relevant usecases are realized !.... and hence traceability is
still maintained.
T.C.Balachandra
The point of the Use case realisation is to provide
a mapping from use cases in the use case view to the design model in the
logical view. This mapping provides traceability which is important
whether an iterative approach is being used or not.
Usecase realistion view may be used if u
r following iterative model..i,e which helps u to know on which use cases
the work has been performed.Other wise usecase diagram in usecase view and
usecase realistion in logical view are same.
----- Original Message -----
To:
Sent: Wednesday, October 03, 2001
3:18 PM
Subject: RE: (ROSE) UseCase View To
Logical View Mapping
Through use case realizations. Each use
case has a corresponding use case realization. A use case
realization exists in the logical view and demonstrates the design
elements that participate in use case realization. It is a use
case with a stereotype of use case realization. Each use case
realization should have a minimum of three diagrams under
it: Participating classes, Dependencies and Basic
Flow. The use case realizations may also have one or more
alternative flow diagrams. The participating classes diagram is a
class diagam showing the classes from the design model that provide the
functionality to realize the use case. The dependencies diagram is
a class diagram that shows the use case realization, the use case it
realizes and relates them using a realizes relationship. This
diagram is used for the traceability between the use case and its
realization. The basic flow diagram is a sequence diagram showing
how the dynamic relationship between the participating classes in the
use case realization. It shows the functionality required by the
use case. One or more Alternative flow diagrams may be used to
show any other scenarios the may occur for the use case. These
diagrams will also be sequence diagrams.
Hi,
What is
the mapping or how is the mapping fro the Use Case View to the Logical
View done?
Rgds,
Ameeta
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