Question 6 (8 marks) Mary Smith has a fast-expanding retail business that faces intense competition as a result of late and incorrect billing, poor customer service, and inefficient inventory control. To continue its expansion, the company's AIS must be improved, but Mary is unsure of the purpose of the AIS. Sara has heard about prototyping but is unsure what it is or whether it would be beneficial. a) What would you say to Mary about prototyping? (4 marks) b) Describe the advantages and disadvantages of the prototyping. (4 marks)