OSM
Chapter 8 Assignment
1. Solve Exercise #1 on page 280. Given the network plan that follows, compute the early, late, and slack times. What is the project duration? Using any approach you wish (e.g., trial and error), develop a loading chart for resource Electrical Engineers (EE), and resource, Mechanical Engineers (ME). Assume only one of each resource exists. Given your resource schedule, compute the early, late, and slack times for your project. Which activities are now critical? What is the project duration now? Could something like this happen in real projects? (6 points)
2. For Exercise #1, do the same work again, but change the duration of task 2 to 5 weeks, and task 6 to 3 weeks. Show all three parts of the diagram again. What is the duration of the project? What would happen if you had two Electrical Engineers and two Mechanical Engineers and they were equally productive. What is the duration of the project with the extra resources. (4 points)
3. Solve exercises exercise #9 on page 287 (6 points). Complete the middle and bottom sections of the diagram.
4. For that same exercise #9 what if the WP Design activity took an extra week in duration, pushing out the other two activities, and cost 4 in that extra 4th week. Complete the middle and bottom sections of the diagrams again with the extra WP Design week. (4 points)
5. Read the Appendix 8.1 Critical Chain approach developed by Goldratt pages 293-301 in your textbook. Describe the difference between the critical path traditional method and the critical chain method in a few paragraphs. Also show the differences between the critical chain approach and traditional scheduling approach with a small example. Draw the example of each as an activity on node diagram. Show the project buffer and feeder buffers in the critical chain approach diagram (20 points).