A 6 B A 4 B Question 4 (17 marks) Datalytics Company Limited plans to use a new information system. It has listed the information system project activities, their preceding activities and the scheduled completion weeks in the following table. Activity Descriptions of Activity Time Immediate (weeks) Predecessor(s) Select new information systems Economic feasibility analysis 3 System acquisition approval Prepare site for the system E Purchase hardware 5 Purchase software Hire project staff Set up the system D, E, F, G I Train users 6 Complete documentation H Implement the system H Test the System 1,J,K a. Draw a PERT diagram for the activities A to L by using the following notation. (6 marks) D 5 5 F G 6 H 4 H 5 J K 5 L 6 Activity Time b. Identify the critical path and support your answer with reason. (3 marks) c. According to the system development life cycle, activity B is conducted in which phase of the cycle? (2 marks) d. According to the system development life cycle, activity H is conducted in which phase of the cycle? (2 marks) e. What other activity that is performed to deal with users throughout the system development life cycle? (2 marks) f. The company fails in which aspect of the feasibility if it does not pay the software vendor on time according to the agreement. (2 marks)