Previous work dealt with the problems of nervousness in Material Requirements Planning (MRP) Systems when production schedules were modified to include setups which previously had not been scheduled. In this work we further examine nervousness and its cost. By modifying the setup costs used in...

Consider the problem of minimizing the required number of work stations on an assembly line for a given cycle time when the processing times are independent, normally distributed random variables. The assignment of tasks to stations is subject to precedence conditions, caused by technological...