life2020

有谁可以解答以下问题？？请大家帮帮忙。。
A petrol station is to be set up for a  fully automated operation. Drivers swipe their credit card through a reader connected to the pump, the card is verified by a communication with the credit card’s company computer and a fuel limit is established. The driver may then pump in the required fuel. 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, it is returned by the pump before fuel is dispensed.


(a)        Draw a domain model using UML for the above case.

(b)        Identify and briefly explain any possible functional and non-functional requirements from the above case.

(c)        Draw a UML use case diagram based on the above case. (Document the use case accordingly).

(d)        Draw a UML activity diagram based on the above case.       
       
(e)        Suggest and describe any future requirements for the above case.