Job-Shop Lot Release Sizes

A new model (ELRS) for determining optimal job-shop lot sizes is presented. Since the setting of the lot release size is one of the most important controlling parameters in the scheduling of a job-shop, the improvement in technique described in the article should result in substantial savings to job-shop operation costs. In those cases where management is already using an EOQ method for determining lot release sizes, the input data and system required for the implementation of ELRS is basically similar and therefore the new and improved analysis can be substituted at relatively minor inconvenience to the user. For those job-shops which set lot release sizes by informal means, the ELRS concept may provide enough of an improved technique to induce this use of this analysis.