# ABC Enterprises has five jobs that must be scheduled for production at a work center. Below...

ABC Enterprises has five jobs that must be scheduled for production at a work center. Below are the processing times and due dates for each job.

 Job Processing Time (in days) Due Date (days from today) 1 7 14 2 5 21 3 3 10 4 2 7 5 6 9

Schedule the jobs by sequencing them using the Earliest Due Date (EDD) priority rule.
What is the average flow time? Show your Work and round your answer to one decimal point.

 Job Processing Time (in days) Due Date (days from today) Flow Time

Schedule the jobs by sequencing them using the Shortest Processing Time (SPT) priority rule.
What is the average flow time? Show your Work and round your answer to one decimal point.

 Job Processing Time (in days) Due Date (days from today) Flow Time

EDD

 JOB PROCESSING TIME DUE TIME FLOW TIME JOB LATENESS D 2 7 0 + 2 = 2 E 6 9 2 + 6 = 8 C 3 10 8 + 3 = 11 1 A 7 14 11 + 7 = 18 4 B 5 21 18 + 5 = 23 2

TOTAL FLOW TIME = 2 + 8 + 11 + 18 + 23 = 62
AVERAGE COMPLETION TIME = FLOW TIME / N = 62 / 5 = 12.4

SPT

 JOB PROCESSING TIME DUE TIME FLOW TIME JOB LATENESS D 2 7 0 + 2 = 2 C 3 10 2 + 3 = 5 B 5 21 5 + 5 = 10 E 6 9 10 + 6 = 16 7 A 7 14 16 + 7 = 23 9

TOTAL FLOW TIME = 2 + 5 + 10 + 16 + 23 = 56
AVERAGE COMPLETION TIME = FLOW TIME / N = 56 / 5 = 11.2

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