Abstract
A production manager of a job shop will use the results of scheduling in several aspects of decision making and study what procedure should be used in sequencing the jobs to attempt to satisfy the due date. This study has clarified that if the due dates are assigned to the jobs, the due-date rule is better than the slack rule in the dispatching rule. The complex rule is proposed based on the due-date rule. When the shop loads are heavy, this complex rule is especially effective. The shop studied consisted of five machines, the number of operations per job being equal to the number of machines. Then, the output report was analyzed by means of computer simulations, and a set of 10,000 jobs were used for all of the test reported.
