=+fuel required. When fuel delivery is complete and the pump hose is returned to its holster, the

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=+fuel required. When fuel delivery is complete and the pump hose is returned to its holster, the driver’s credit card account is debited with the cost of the fuel taken. The credit card is returned after debiting. If the card is invalid, the pump returns it before fuel is dispensed.

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Software Engineering

ISBN: 9780133943030

10th Edition

Authors: Ian Sommerville

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