通信图：ATM客户端“取款”用例

3.14: Printer Output

:Customer Interface

:ATMControl

3.10: Cash Dispensed3.10B.7: Cash Is Retrieved(Amount)3.10A.5: Cash Is Extracted

3.12: Transaction Request

3.6: Dispense Cash (Amount)3.10B.2: Retrieve Cash

3.1a.1: Reset Timer3.6b: Start Timing3.10A.6: Reset Timer3.16a: Start Timing3.17A.6: Reset Timer

: CashDispenser Interface

3.17A.4: Card Is Taken Out

: ReceiptPrinter

3.1a: Operation Is Selected3.3: Withdrawal Selected (Withdrawal Transaction)

3.2: Withdrawal Transaction

3.9: Dispenser Output3.10B.3: Retrieve Cash

3A.1: Ten Seconds Remained3B.1: Time Out3.10A.1: Ten Seconds Remained3.10B.1: Time Out3.17A.1: Ten Seconds Remained3.17B.1: Time Out

3.13: Transaction Data

: ATMCash

3.10A.4: Cash Is Extracted3.10B.4: Cash Is Retrieved

: CardReader

3.7: Withdraw (Amount)3.10B.5: Cash Is Retrieved

3.11: Print Receipt

: ReceiptPrinter Interface

:OperateTimer

:CardReader Interface

3.8: Cash Response3.10B.6: Amount of Cash Retrieved

: BankingService

3.15: Receipt Printed

:ExternalTimer

:ATMTransaction

: CashDispenser

:ATMCustomerKeypadDIsplay