The following table shows orders to be processed at a machine shop as of 8:00 a.m. Monday. The jobs have different operations they must go through. Processing times are in days. Jobs are listed in order of arrival.
| ob |
Processing
Time (Days) |
Due Date
(Days) |
Remaining Number
of Operations |
| A |
8 |
20 |
2 |
| B |
10 |
18 |
4 |
| C |
5 |
25 |
5 |
| D |
11 |
17 |
3 |
| E |
9 |
35 |
4 |
Required:
Question 1) Determine the processing sequence at the first work center using each of these rules: (1) First come, first served, (2) Slack per operation.
Question 2) Compute the effectiveness of each rule using each of these measures: (1) average completion time, (2) average number of jobs at the work center. Solve the given numerical problem and illustrate step by step calculation.