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ME 482 - Manufacturing Systems

Shop floor control – order scheduling

Concerned with machine loading and job sequencing:

Machine loading – allocating orders to work centers.

Job sequencing -  determining the order in which parts are processed through a given work center.

Priority control – maintains the proper priority for the production orders under the dispatching rules: first-come-first-serve – jobs are processed in order received earliest due date – orders with earlier due dates have higher priority shortest processing time – those finished faster have higher priorityleast slack time – jobs with least slack time have higher priority critical ratio – ratio of time remaining until due date divided by remaining  

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