PROJECT & OPERATIONS MANAGEMENT Question, Answer only part b

Quiz 1 Slope The detail of the direct cost for project XYZ are given in Table 1. Table 1 Details for Project XYZ Activity Predecessor Normal Time (day) Direct Cost 100 B 3 150 4 200 D B 200 200 D.E 150 A 1 A A Maximum crash time 0 2 1 1 2 1 0 100 50 60 70 90 E 3 4 3 F a. Create the project network and identify the critical activity for the critical path (4 marks) b. The indirect cost is listed in Table 2. i. If the project needs to be crashed from its initial time, T1 to T5, list the step-by-step changes in activity and the direct cost to crash the project in Table 2.. (10 marks) ii. Identify the project's optimum duration (1 mark) Step Table 2 Project Duration Direct Cost Activity crashed Indirect Cost 800 Total Cost 775 1 2 3 4 5 Initial time T1 New time T2 New time T3 New time T4 New time T5 675 550 500