The Mowry Machine Shop still has five jobs to be processed as of $8$ A$.$M$.$ today$($day $27)$ at its bottleneck operation. The time since the order$$ arrived, processing$$ time, and promised due dates are given in the following table. The jobs are listed in the order of arrival.

$$

Job

Time Since

Order Arrived

$($days ago$)$

Processing

Time$($days$)$

Due Date

$($days from

$$now$)$

A

$12$

$4$

$15$

B

$10$

$4$

$12$

C

$5$

$3$

$26$

D

$3$

$10$

$18$

E

$1$

$8$

$9$

a$.$ Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average days past due.

Part $2$

Using the FCFS$($first come, first$$ served$)$ decision rule for sequencing the$$ jobs, the order$$ is:

Sequence

$1$

$2$

$3$

$4$

$5$

Job

$$

$$

C

A

D

E

B

$$

C

E

D

B

A

$$

A

C

E

D

B

$$

D

E

B

A

C