We have a process shown in the right figure. $($M$1-$

M$4$ are the names for four machines. The numbers

are activity times in minutes$).$ Consider a schedule:

schedule a job on M$1$ every $8$ minutes, starting at

time $0$ ; schedule a job on M$2$ every $4$ minutes

starting at time $0.$ Jobs finished on M$1$ go to M$3$;

jobs finished on M$2$ go to M$4.$

a$)$ Plot this schedule for the first $6$ jobs in the following Gantt chart. The first job and the $4^{th}$ job

start on M$1.$ The second, third, $5^{th},$ and the $6^{th}$ jobs start on M$2.$ The first block of job $1-5$ is

plotted for you.

You can extend the above chart as needed.

b$)$ Find the WIP on each machine and complete the below table