chapter16_ls - Job F ) and enter a 2 (second to be done) in...

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Lecture Suggestions - Chapter 16 Example 2: Scheduling - Critical Ratio method 1. Select the Example 2 worksheet 2. Time, and Due Date. 3. 4. 5. 6. 7. Critical Ratio = (Due Date - Current Date) / Process Time using the new Current Date. Repeat steps 5-6: 8. sequence column. 9. Repeat steps 5-6: 10. sequence column. 11. Repeat steps 5-6: 12. sequence column. 13. Repeat step 5: 14. sequence column. 15. 16. Press the CR button to sequence jobs. 17. scheduling methods (Optional) Clear worksheet (press Clear and confirm with OK) and re-enter data for Job, Process Enter Current Date = 0 . Point out that Critical Ratio = (Due Date - Current Date) / Process Time are computed for each job. Pick job with lowest critical ratio ( Job C ) and enter a 1 ( first to be done ) in the CR sequence column. Add processing time for Job C (4) to current time so Current Time = 4 . Point out that that critical ratios are re-computed : Pick job with lowest remaining critical ratio (
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Unformatted text preview: Job F ) and enter a 2 (second to be done) in the CR Add processing time for Job F (12) to current time so Current Time = 16 . Pick job with lowest remaining critical ratio ( Job A ) and enter a 3 ( third to be done ) in the CR Add processing time for Job A (2) to current time so Current Time = 18 . Pick job with lowest remaining critical ratio ( Job E ) and enter a 4 ( fourth to be done ) in the CR Add processing time for Job E (5) to current time so Current Time = 23 . Pick job with lowest remaining critical ratio ( Job B ) and enter a 5 ( fifth to be done ) in the CR For the only job remaining ( Job D ) and enter a 6 ( last to be done ) in the CR sequence column. Compare average flow time, average tardiness, and average number of jobs with other 18. Point out the Days Late for A, B, D, and E in the graph....
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chapter16_ls - Job F ) and enter a 2 (second to be done) in...

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