Sime Cooperation. is a shipbuilding company. Recently, the company was appointed by thegovernment to build a brand new ship. Table 1.1 shows the processsequence data for the ship development. As an industrial engineer,you need to provide the top management with certain informationbelow:
Activity | Predecessor | Time Estimates (Days) | Cost per day | Crash cost per day |
Optimistic | Most Likely | Pessimistic |
a | m | b |
A | - | 50 | 55 | 60 | 50 | 75 |
B | A | 32 | 34 | 36 | 50 | 75 |
C | A | 68 | 72 | 76 | 80 | 120 |
D | B | 30 | 34 | 38 | 40 | 60 |
E | B, C | 56 | 60 | 64 | 60 | 90 |
F | E | 68 | 70 | 78 | 70 | 105 |
G | D, F | 100 | 110 | 120 | 60 | 90 |
- Develop a network diagram for the above project. Determine thecritical path and minimum project completion time.
- Calculate the probability that the project can be completed inless than 380 days.
- ) If the project has to be shortened by three (3) days,determine which activity needs to be crashed and the additionalcost involved. Assume there is no limit for crash time and cost perday as well as crash cost per day were based on expected time.
