ShortTerm Scheduling

1
Short-Term Scheduling

• Ross L. Fink

2
Classical Job Shop Scheduling

• Used for material and capacity plans for MRP
• Used as a stand-alone scheduling method

3
Job Shop Scheduling Terms

• For each job,
• i job number
• ri ready-time, release time, arrival time
• di due-date
• ci completion date

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Job Shop Performance Measures

• Fi ci - ri flow-time
• Li ci - di lateness
• Ti Max0,Li tardiness
• Utilization
• E/T models
• Mean absolute deviation ci - di
• Mean square deviation (ci - di)2