John runs an electronics repair store in the local shopping centre. Customers bring in faulty equipmentslike mobile phones, laptops, Ipads and other devicesfor repair. Staff at the store receive the equipment, prepare a quote and if the customer agrees to the quoted price, collect money for repairs and issue a receipt. When the repaired equipment is ready for collection, staff message customers the date and time for collection of the equipment.

Question 1 (8 marks) a) Draw a Level Zero DFD to depict all the processes and external entities in the above case study