1. Map your most refined use case from Project 1 to its sequence diagram.
2. Draw state diagrams of all the entity objects CheckingAccount, SavingsAccount and Transaction. Consider CheckingAccount, SavingsAccount and Transaction in the whole system with the situations like balance falling below minimum required balance, violations to banking terms and conditions, overdraft, etc. when studying these objects state diagrams.
3. Identify attributes and operations for entity class CheckingAccount, SavingsAccount and Transaction based on your sequence diagram and state diagram.

Include your most refined use case from Project 1. Then do the mapping. When you do the mapping, you may find some errors in your use case. Correct the errors. Therefore, in your hand-in document, you should have the follows.

1.     The current refined use case.

2.     The corrected refined use case.

3.     The sequence diagram of the use case.

4.     The state diagrams of CheckingAccount, SavingsAccount and Transaction respectively.

5.     The attributes and operations of CheckingAccount, SavingsAccount and Transaction.