The following jobs are waiting to be processed at your work center, which cleans valve body castings. Job numbers are assigned sequentially upon arrival in the facility (a missing number means that job does not require your work center)
All dates are specified as days from today.
Job Due Date Duration (days)
101 43 10
102 34 12
104 37 11
107 32 7
108 37 15
a. In what sequence should the jobs be processed according to the FCFS scheduling rule?
b. In what sequence should the jobs be processed according to the EDD scheduling rule?
c. In what sequence should the jobs be processed according to the SPT scheduling rule?
d. In what sequence should the jobs be processed according to the LPT scheduling rule?
e. In what sequence should the jobs be processed according to the critical ratio scheduling rule?
FCFS: 101, 102, 104, 107, 108
EDD: 107, 102, 104 and 108 (tie), 101
SPT: 107, 101, 104, 102, 108
LPT: 108, 102, 104, 101, 107
CR: 108 (2.47), 102 (2.83), 104 (3.36), 101 (4.30), 107 (4.57)
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