this method provides for increasing integrated circuit production of a fabrication facility comprising collecting data from a plurality of machines , calculating of the present ratio of running work , comparing present rrw to optimum rrw , checking the system to determine which machines are idle , and taking steps to increase the number of running machines . steps taken to decrease the number of idle machines include dispatching commands to a computerized dispatching system or operators . the steps of the process are repeated to further increase rrw .