Lean Insights - Review the book "The Ten Commandments of Taiichi Ohno", By Yoshihito Wakamatsu
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Over-production can lead to various wastes other than inventories. Increasing in-process stock, waste of movement and wastes of transportation all add up quickly. Truly value-added work comes from having just enough of the right material, at the right place, at the right time. This is what Toyota calls “just in time!”