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Interaction Diagrams - Sequence and Collaboration in Object Oriented  Software design and Software Documentation By   ENOH JOHN ENOH B.Sc (Hon)  Computer sc, Diploma in Industrial Computing and Software Engineering (DIP)   
(e-mail @ enojoneno@yahh.co.uk or call  08057039876)

          U can be  a Guru in Object Oriented Software Design
Once the use cases are specified, and some of the core objects in the system are prototyped on class diagrams, we can start designing the dynamic behaviour of the system.
Recall from my Reusable Object-Oriented Patterns in Banking Applications article , that a use case encompasses an interaction between a user and a system.  Typically, an interaction diagram captures the behaviour of a single case by showing the collaboration of the objects in the system to accomplish the task. 


See Attach file the article with diagrams