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.

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

On the basis of average flow time, which rule gives the best schedule? EDD or FCFS

On the basis of average days past due, which rule give the best schedule? EDD or FCFS

Currently a company that designs Web sites has five customers in its backlog. The time since the order$$ arrived, processing$$ time, and promised due dates are given in the following table. The customers are ready to be scheduled$$ today, which is the start of day $190.$

Customer Time Since Order Arrived $($days ago$)$ Processing Time $($days$)$ Due Date $($days from now$)$

A $81250$

B $61066$

C $32458$

D $232100$

E $102026$

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$$ served$)$ decision rule for sequencing the$$ customers, the order$$ is: