Abstract
A production system including a function to reassign in-process products to receipt order is developed in order to supply a customer with products with short lead time in previous paper. Then, effect of the reassignment on reduction of lead time of receipt order is investigated by utilizing the developed system. One of the problems that scheduling personnel have to resolve is that they show precise due-date of order to customer. However, it is difficult to estimate appropriate due-date of receipt order, because the exact number of orders received in the future is impossible to be predicted and schedule is continuously changed by addition of new receipt orders. In this paper, a procedure to decide due-date of receipt order with scheduling and reassigning is proposed. Then, the performance of the proposed procedure is evaluated on simple shop model.