面向对象nullnullA gas station is to be set up for fully automated operation. Drivers swipe their banking card through a card reader that is connected to each gas pump, the card is verified by communication with a credit card company computer and a fuel limit is establ...
nullnullA gas station is to be set up for fully automated operation. Drivers swipe their banking card through a card reader that is connected to each gas pump, the card is verified by communication with a credit card company computer and a fuel limit is established according to the available balance in the client’s account. The driver may then take the fuel required. When fuel delivery is completed and the pump hose is returned to its holder, the driver’s credit card account is debited with the cost of the fuel taken. The credit card is returned after being debited with the cost of the fuel taken. If the credit card is invalid, the pump returns it before fuel is dispended. A central control system can shut off any pump that ran out of gas or turn on/off all pumps at times defined by the user. It also collects information about all transactions and automatically shuts off all pumps and calls the fire department in case of fire (detected by heat
sensors on each pump).nullA. Provide a use case diagram for the above problem description. NOTE: You have to use at least one <> and one <> relationship [10%]
B. Propose a main scenario for the “dispense fuel” use case. NOTE: Your scenario has to reflect the interactions with all the actors connected to it. [10%] :B. Propose a main scenario for the “dispense fuel” use case. NOTE: Your scenario has to reflect the interactions with all the actors connected to it. [10%] :Answer : a main scenario as below A driver gets a pump hose and then takes the fuel required by using his credit card which has been verified by creit card company.nullC. Provide a sequence diagram representing the above “dispense fuel” scenario. [10%]
nullD. Provide a class diagram for the above problem description. [10%]
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