Nellie is looking to upgrade and expand the research and testing area. The following information has been
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Question:
Nellie is looking to upgrade and expand the research and testing area. The following information has been gathered and provided to Nellie.
Activity | Immediate predecessors | Optimistic time (weeks) | Most likely time (weeks) | Pessimistic time(weeks) | Normal Cost ($) | Crash cost ($) |
A | 4 | 6 | 8 | 13,500 | 31,200 | |
B | 8 | 12 | 16 | 27,000 | 62,400 | |
C | 4 | 10 | 16 | 27,000 | 62,400 | |
D | A | 6 | 8 | 10 | 27,000 | 46,800 |
E | B | 12 | 14 | 16 | 27,000 | 46,800 |
F | C | 8 | 14 | 20 | 27,000 | 78,000 |
G | A | 2 | 10 | 18 | 54,000 | 124,800 |
H | B | 4 | 10 | 16 | 27,000 | 78,000 |
I | C | 6 | 10 | 14 | 40,500 | 62,400 |
J | D, G | 4 | 4 | 4 | 6,750 | 7,800 |
K | E, H | 8 | 8 | 8 | 6,750 | 7,800 |
L | F | 6 | 6 | 6 | 6,750 | 7,800 |
Required:
- Using an appropriate computer drawing program, draw the PERT network diagram for the project showing the task letters on the activity paths.
- Identify all the possible pathways and determine the critical path.
- Determine the probability that the expansion will be completed in 30 weeks
- Nellie is prepared to pay an additional bonus of $15,000 per day if the project is completed in 28 days. Taking into consideration the costs involved in crashing the project, should the project be reduced to 28 days to receive the bonus (show workings)
- Using current literature (newspaper articles, academic journals etc), discuss some of the resource constraints that would make this upgrade and expansion challenging. Present these findings in a one-page cover letter addressed to Nellie.
Related Book For
Operations management processes and supply chain
ISBN: 978-0136065760
9th edition
Authors: Lee J Krajewski, Larry P Ritzman, Manoj K Malhotra
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