As some of you were asking, here we clarify how to proceed for next deliverable:

• Test cases: At this point, using JUnit will be considered as a plus. It is enough a Main class testing your module interface methods.
• Code evolution: You can change your code in the next days, but you have to provide a description of the changes performed (a change log).
• Diagrams: Activity diagrams will be also considered as a plus. Note that in any case it is very useful to show how the different operations in you module work.