I am confused, how detailed Sequence Diagrams should be.
For example, we have Sale-SaleLineItem-Product model.
- Should SD show only handling of system events? E.g. interaction of SaleUseCaseFrontController, SaleUseCaseBusinessDelegator, ServiceLocator, SaleUseCaseApplicationController, DAO, � Like SD for Application Controller in "Core J2EE Patterns" book.
- Or should SD show more details? E.g. interaction of about components + interaction of domain classes: how Sale, SaleLineItem, Product are created. How they are linked. Like in the "Applying UML and Patterns" Chapter 17.