Thank you very much for your quick response.
I have two clarifications w.r.t seq dgms. They are :
1.In Cade�s book, they have drawn seq dgm at architectural level . meaning,they have used components as participants . In UML distilled book, I found classes being used in seq dgm and I have used mostly classes in seq dgm in my earlier projects .
1.1 What did you use in your seq dgms? Classes or components. What were your reasons for choosing class or components.
1.2.Also, there seems to be two approaches for showing messages in seq dgm.
One is showing actual method of class as message.
Another is showing the operation as message. For eg,in Core j2ee Patterns book, they show �get data� as message to DAO from Fa�ade object.
I feel the first approach looks to be good.
What approach you used and what was the reason for selecting that approach?
1.3 Also,do we need to show message paramters in method calls of classes in seq dgms.
2.I have confusion to what level of detail I should show participants in seq dgm.
Should I show flow from customer to controller , business tier and JSP�s or show flow from customer to business delegate and then to DAO.
I read that you also had same issue and you opted for JSP approach .Was there any reason for selecting this approach.
I feel first approach can be used but have GUI subsystem instead of JSPs if one has app clients in the assignment. However , the controller is different for web and application . So, it is not clear how to show this in seq dgm.
Kindly let me know your answer to my queries at the earliest.