Use Case: Customer Sign-in

Extends Transaction
Actors Customer, BankServer
Flow of events
  1. ATM prompts to enter personal identification number.
  2. Customer enters PIN.
  3. ATM communicates with BankServer to check PIN and retrieve customer information.
    • If the PIN is correct then the authorization is successful.
    • If the PIN is incorrect then the customer is informed and the use case restarts at step 1, above. This can be repeated at most three times for a given transaction.
    • If BankServer doesn't respond or indicates that it is unavailable then use case Server Unavailable is initiated.
Entry condition ATM is in "Normal Operation" mode and Customer's card is in the cardslot.
Exit condition Customer is authorized or transaction is terminated.
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Last modified: $Date: 2008-01-08 23:05:26 -0330 (Tue, 08 Jan 2008) $ ($Revision: 292 $) by $Author: dpeters $