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Modeling Online-Banking (1)

We begin with UML sequence diagrams for onlineTransaction:

• An account owner who wants to transfer money from one bank account to another has to do the following steps: First, he has to log in to the bank application (on his PC) using his username and password. Secondly, he enters the details of the transfer (e.g., account number and bank code of the receiver) and validates them. The validation (e.g., whether the bank number of the receiving account is valid) is done by the bank application. If the validation succeeds, the customer confirms the correctness of the transfer data and gets an iTAN index from his bank. Finally, he chooses the iTAN with the received index from his iTAN list and enters it. Afterwards, he is notified about the success or failure of the transfer.

        




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