# Exercise 3 Solution Harvard Case Solution & Analysis

Part 1

The new fictitious work centers with their times would be as follows:

 Work Center 1 Work Center 2 David 3 4 John 5 5 Cindy 4 7 Peter 5 4 Isabel 4 2
 Therefore, based upon the above work center processing times it could be said that in the optimal sequence the Johnson's rule is being applied and that it would result in the minimization of the globl completion times.

Part 2

 The optimal sequence is : David>Cindy>John>Peter>Isabel
 Global Completion time for all treatments David Cindy John Peter Isabel TOTAL Surgery 2 3 7 11 14 37 Radiology 1 4 5 6 7 23 Orthopedy 3 7 11 14 15 50

It will take total of 15 hours to complete all treatments.

 Waiting Times David Cindy John Peter Isabel TOTAL Surgery 0 2 3 7 11 23 Radiology 0 1 4 5 6 16 Orthopedy 0 3 7 11 14 35
 Occupation Rate Surgery 37.84% Radiology 30.43% Orthopedy 30.00%

Part 3

 Based upon Gupta's Rule ej David 1 John 0 Cindy 1 Peter -1 Isabel -1
 Therefore, the schedule based upon Gupta's rule would be: Peter>Isabel>John>David>Cindy
 The global completion time would be same as compared to part b, however, the waiting times for each patient would differ.

Part 4

 If an alternative global completion time is calculated based upon alternative scheduling based on Gupta's rule then the total global completion time (makespan) would be same in this case as the time for treatment for each patient is constant.
 Global completion Time (alternative schedule) Peter Isabel John David Cindy Surgery 4 7 11 13 14 Radiology 1 2 3 4 7 Orthopedy 3 4 8 11 15

It could be seen that still the global completion time is same on alternative scheduling basis...................

This is just a sample partial case solution. Please place the order on the website to order your own originally done case solution.

Other Similar Case Solutions like