1. 4.5. Using the technique suggested here, where natural language descriptions are presented in a standard format, write plausible user requirements for the following functions: o An unattended petrol (gas) pump system that includes a credit card reader. The customer swipes the card through the reader, then specifies the amount of fuel required. The fuel is delivered and the customer’s account debited. Function: Accept customer input for the amount of gas they want and charge them for it Description: The system will accept a customer’s credit card, allow the customer to specify the amount of gas they want, dispense the gas, and charge the customer for the gas Inputs: Customer credit card information, amount of gas that the customer specified Source: The card reader Outputs: The amount of gas that the customer specified Destination: The customer’s car’s gas tank. Action: The customer will swipe their card through ...
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