Help needed in uml diagrams - conceptual class diagram and sequence diagram

Question

I am drawing uml diagrams for bank mgmt systems. I made use case diagram in VP suite. http://imgur.com/8Toku.png . I dont know how to proceed with conceptual class and sequence diagram. Help needed to get started based on the above use case

Answer 1

UML does not provide any guidance on how to progress from one diagram to the next. In other words, UML is pure notation, with little semantics and no process. You would need a method in order to have a clear path from use cases to class model. I suggest you look at OPEN/Metis or some other full-fledged model-based methods (not agile; they are rarely model-based) for guidance.

Answer 2

Conceptual class is a crisp abstraction in the problem domain(from business point of view).

The job of the OO analyst is try to clarify confused or inappropriate business concepts into something that can form the basis of an analysis class.

There are some ways to find the conceptual classes.
- Finding Classes by Using Noun / Verb Analysis
- Finding Classes by Using CRC Analysis
- Finding Classes by Using RUP Stereotypes

You may read Jim Arlow, Ila Neustadt, UML2 and the Unified Process, Addison Wesley 2007 for how these things can be done.

You may also find UML Training to be useful.