The sensitivity of jobshop due date lead time to changes in the processingtime

This paper provides a procedure for calculating the sensitivity of the prod uction lead time to the average job processing time for a single machine pr oblem under a general priority rule using simulation. The aim of this work is to develop sensitivity routines, for queues with any nonpreemptive prior ity rule, to calculate the sensitivity of the due date lead time to the ave rage jobs processing time. Though GI/G/l queuing model is given, the same m ethodology can be extended to GI/G/m queuing model. The new algorithm is va lid for the SPT, LPT and FCFS priority rules. (C) 1998 Published by Elsevie r Science Ltd. All rights reserved.