A. Draw the activity on node (AON) network diagram for this project. (10 marks) The AON network diagram must include ES, EF, LS and LF.

B. What is the shortest duration for this project? (2 marks) List the tasks on the critical path(s)? (8 marks)

C. Calculate the Early Start, Early Finish, Late Start and Late Finish times for each task, and draw them on the AON diagram. (10 marks)

D. Calculate the Free Slack and Total Slack for each task. (10 marks)

 

Task No. A B C D E F G H I J Task Description Lay foundation Dig hole for scale Insert scale bases Erect frame Complete building Insert scales Insert display cases Put in office equipment Finishing touches Calibrate scales Duration (days) 8 6 10 12 20 4 5 3 2 2 Preceding Tasks B A, C D E E G H F