Question:

Section L' Case Study Total Number of Marks for this section: 35 This section should be answered in the Answer Booklet provided.| All Questions in this section should be answered. Marks for each question are indicated. Suggested Time allocation for Section C: 70 minutes Case Study: Robotic System Assembly Lille PBM Automotive has decided to implement a Robotic system in their assembly line. The project was approved based on Net Present Value analysis using the data given in Table 1: Table 1: Yearly breakdown of cash ow for the first 5 years Costs ($) 1,000,000 100,000 100,000 100,000 100,000 Benefits (35) - 200,000 400,000 500,000 500,000 The breakdown of the work carried out as part of the project is given in the table 2: Table 2: Description of tasks and durations Time(Weeks) Task Predecessor Likely Optimistic Pessimistic A. System design 6 5 7 B. Hardware purchase A 4 3 6 and delivery C. Software A 2 1 W specification D. Hardware assembly B 6 5 8 and test E. Software purchase C 8 6 11 and delivery F. Hardware D 8 7 9 installation on site G. Whole system test E, F N 1 H. User test G 1 NQuestion 1 (15 Marks) 3 Carry out N'PV analysis and determine the Net Present Value. Show your results in the form of a table. (12 Marks) b Calculate the return on investment. (3 marks) Question 2 (8 Marks) a Calculate the PERT weighted average time for each of the tasks Listed Table 2. (5 Marks) I) Explain the purpose of using PERT weighted average time. Describe any limitation in using this method