There are three workcenters $(A,B,C)($each has one machine$),$ four jobs $(1,2,3,4)$ to be scheduled. The processing time $($hours$)$ and due date $($day$)$ of the jobs are given in the blow table. $(1$ day $=8$ hours$)$

$\backslash$table$[[$Job$,$Workcenter$/$Processing hours,Due date$],[1,\frac{A}{2},\frac{B}{3},\frac{C}{3},3],[2,\frac{B}{5},\frac{A}{5},2],[3,\frac{C}{4},\frac{B}{3},\frac{A}{2},4],[4,\frac{A}{5},\frac{B}{4},3]]$

a$.$ Calculate utilization, job waiting time, machine idle time, job flow time, makespan, average earliness, average tardiness and average WIP inventory using the SPT job sequence. $(3$ point per each$)$

b$.$ Calculate utilization, job waiting time, machine idle time, job flow time, makespan, average earliness, average tardiness and average WIP inventory using the EDD job sequence. $(3$ point per each$)$