There is no trade off between quality, quantity, and compliance. Some simple statistical concepts demonstrate that only operations that successfully reduce variation and improve quality will achieve high output, low work in progress, and good compliance. Improved quality creates reduced deviations, scrap and rework, lower work in progress and inventories, higher throughput volume, lower unit costs, and enhanced customer service levels. The good news is that we can have it all-if only we know how to reduce variability.
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