Order that have tooling, material, and capacity have a good chance of being completed on time and can be released to the shop floor. Other orders that do not have all of the necessary elements should not be released because they only cause excess work-in-process inventory and may interrupt work on orders that can be completed.
Once work orders have been issued to manufacturing, the progress has to be controlled. To control progress, performance has to be measured and compared to what is planned. If the performance varies significantly from what we planned, corrective action must be taken.
The input/output control system is a method of managing quees and work-in-process lead times by monitoring and controlling the input to, and output from, a facility. It is designed to balance the input rate in hours with the output rate so these will be controlled.
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