usecase - updates the display showing the volume of pumped...

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Exercises—Use Case and Use Diagram Name: Arun Kumar Gattu Sambaiah Seat #800439193 USE CASE: Name: Gas Pumping System Participating Actors: Customer, Gas Pump Controller, Operator Entry Condition: The Customer starts the payment by introducing a valid card and typing the corresponding PIN code Event Flow: 1. The customer starts the payment by introducing a valid card and typing the corresponding PIN code. 2. If the credit card is valid and the PIN code correct, the customer picks the nozzle of the wanted type of fuel. 3. The System Shows the information related to the selected type of fuel (price per Gallon) and “0” as the number of Gallons pumped. 4. While the nozzle is being used, the customer can pump fuel to the car’s tank and the system
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Unformatted text preview: updates the display showing the volume of pumped fuel and its respective price. 5. When the customer finishes pumping fuel, he returns the nozzle to its rest position. 6. The system withdraws the amount corresponding to the price of the pumped fuel from the customer’s account, retains its commission and credits the rest to the station’s account. Exit Conditions: The system withdraws the amount corresponding to the price of the pumped fuel from the customer’s account. Special Requirements: Pump controller, Fuel measurer, Nozzle detector, Card reader, Display, Fuel valve....
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