【正文】 E1：若密碼輸入無效，系統(tǒng)提示錯誤信息， 客戶可以重新輸入或終止用例。 B. 客戶輸入自己的密碼，提交。 ⑷事件流 ⅰ.主事件流 當客戶插入ATM卡到機器中時，用例Session啟動。 ⑶后置條件 若成功，則客戶登錄到系統(tǒng)中。 3．3 Use Case Diagram（系統(tǒng)用例圖）4．靜態(tài)結(jié)構(gòu)模型分析4．1 類的分析（初步）4．2 CRC 類的責任與交互的描述邊界類：1. CcardReader a) Responsibility： i. Tell ATM When Card is Inserted ii. Eject Card iii. Read info from card iv. Retain card b) Collaborations： i. ATM ii. Session iii. Card 2. CcashDispenser a) Responsibility： i. Dispense cash ii. Keep the amount of cash available iii. Init cash amount b) Collaborations： i. Clog ii. CTransaction 3. CCustomerConsole a) Responsibility： i. Display messages ii. Display menu and receive a choice iii. Display a prompt and receive a PIN iv. Display a prompt and receive the amount of money v. Display a dialog and receive the response b) Collaborations： i. CTransaction ii. CSession 4. CKeyboard a) Responsibility： Watch the gesture from the keyboard b) Collaborations： CCustomerConsole 5. CScreen a) Responsibility： Display drawing and strings b) Collaborations： CCustomerConsole 6. CCashReceiver a) Responsibility： Receive the cash from the customer b) Collaborations： Clog 7. Cbank a) Responsibility： i. Connect to bank ii. Send message to bank iii. Receive message to bank iv. Shut down connection to bank b) Collaborations： i. Clog ii. CSession iii. Cmessage 8. CoperatorPannel a) Responsibility： i. Inform ATM system is shutdown ii. Inform ATM system is started iii. Inform cashdispenser the initial amount of cash b) Collaboration： i. CATM ii. CCashDispenser 9. Cprinter a) Responsibilities： Print the receipt b) Collaboration： i. CATM ii. CTransaction iii. Clog iv. CReceipt 實體類： Clog a) Responsibility: i. Write log message from bank ii. Write log message from cardreader iii. Write log message from session iv. Write log message from Transaction b) Collaborations: i. CBank ii. CCardreader iii. CTransaction Cmessage a) Responsibility: