A banking system provides users with several services: 1) check their accounts to see recent transactions and balances; 2) pay bills online; 3) to buy and sell nvestments; 4) Transfer money between accounts in the same bank or other panks. All of these services require a secure log-in. If the system crashes or the network connection fails during a transaction, it is essential that all the financial data is left na consistent state. (a) Draw use case diagrams for these requirements. (b) Draw sequence diagram to for the scenario where a user transfers money to an account of another person in the same bank. Note that account balance cannot be negative Tra nsfers are charged O 001 fees

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