Question: Carol, the production manager, would like to determine the processing sequence for eight jobs through the grinding and deburring departments. The same sequence will be
Carol, the production manager, would like to determine the processing sequence for eight jobs through the grinding and deburring departments. The same sequence will be followed in both departments. Carols goal is to move the jobs through the two departments as quickly as possible while the foreman of the Drilling department wants to use the shortest processing time (SPT) rule to minimize the work-in-process inventory in his department.
| Job | Drilling time (hours) | Deburring time (hours) |
| A | 4 | 7 |
| B | 2 | 5 |
| C | 1 | 6 |
| D | 3 | 3 |
| E | 9 | 4 |
| F | 8 | 7 |
| G | 6 | 2 |
| H | 8 | 8 |
Draw the Gantt chart that minimizes the work-in-process inventory in the Drilling department.
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List any better sequence: ___________________________________
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