A hardware shop supplies a wide variety of bathroom equipment. There are 15 shop assistants who serve customers, 3 office staff who handle the administration, and a manager.
A specialized company is asked to design and implement a new computer system for the shop.
(a) (i) Identify two different types of users of the system. [2]
(ii) Explain the role of users in the process of developing the new computer system. [3]
(b) Describe why it is useful to produce more than one prototype of the new system. [2]
(c) Outline two problems that may occur when transferring data from the old system to the new system. [4]
The manager of the shop has decided to invest in a computer system which allows customers to make online orders from any place at any time.
(d) (i) Explain how two or more customers are able to access the computer system at the same time. [2]
(ii) Explain how each customer’s data is secure when two customers access the system at the same time. [2]