withdraw_cash_outline - account No big fuss but if the...

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Withdraw Cash Stepbystep outline 1   Insert Card 2   Validate card 3   Enter pin 4   Select withdraw 5   Select account 6   Select amount 7   Send transaction 8   Receive ok 9   Dispense money 10  Print receipt 11  Eject card List of Alternative flows A1 wrong PIN A2 no money A3 Attempt to withdraw more than daily amount A4 no contact A5 link goes down  hmm, if the link goes down before the transaction reaches the actual 
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Unformatted text preview: account? No big fuss but if the transaction reaches the account and then the link is down? The money is withdrawn but never dispensed! do we need some kind of twophase-commit? A6 stolen card A7 out of money...
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