In a fast-food restaurant company, customers buy their foods at the cashiers counter. The restaurant only accepts non-cash payments such as Octopus or Alipay and all receipts will be recorded by the cash register placed in front of the cashier. The cashier will use the cash register to record the sales and print out a list of foods bought by the customer. Customer will take the list to the food counter and get the foods. The foods given to customer is not recorded by the restaurants information system. The money received will be deposited into the restaurants bank automatically every day through electronic means.

a. Based on the above narrative and our subjects materials, draw a level 0 data flow diagram for the restaurants revenue cycle. (Note: Marks will be deducted for any unnecessary or missing symbols) (14 marks)

b. Should the food counter accept a list of foods hand-written by the cashier? Explain your answer in less than 15 words. (3 marks)

c. What is the control procedure adopted by the restaurant to safeguard customer payments? (2 marks)

d. What is the name of the information technology that speeds up the cash collection process (1 marks)