5 The following list of jobs in a critical department includes estimates of their required times:

a. Use the shortest operation time rule to schedule these jobs. What is the schedule? What is the mean flow time?

b. The boss does not like the schedule in

a. Jobs E and G must be done first, for obvious rea- sons. (They are already late.) Reschedule and do the best you can while scheduling Jobs E and G first and second, respectively. What is the new schedule? What is the new mean flow time?

Transcribed Image Text:

JOB REQUIRED TIME (DAYS) DAYS TO DELIVERY PROMISE SLACK A 8 12 4 B C 3 t 9 6 7 8 1 D 1 11 10 E 10 -10 (late)