Assignment:
Sequence the jobs shown below by using a Gantt chart. Assume that move time between machine is one hour. Sequence the jobs in priority order 1,2,3,4.
(A) what is the makespan?
(B) how much machine idle time is there?
(C) when is each job delivered compared with its due date?
(D) how much idle time waiting time is there for each job?
Job work center machine DUE DATE
1 A/3, B/2, C/2 3
2 C/2, A/4 2
3 B/6, A/1, C/3 4
4 C/4, A/1 B/2 3