Shipulski On Design

At every turn, lean has increased profits in the factory. Its best trick is to look at the work through a time lens, see wasted time, and get rid of it.

Work is blocked by problems. You watch the work to spot blockages in the form of piles, otherwise known as inventory. When you find a pile, you know the problem is one operation downstream.

As lean works its magic, inventory is reduced, which decreases carrying costs. More importantly, however, it also reduces the time to see a problem. Whether the problem is related to quality, delivery or resources, everything stops immediately. It’s clear what to fix, and there’s incentive to fix it quickly because with lean, the factory is more sensitive to problems.

What works in the factory will also work in the supply chain, and that’s where lean is going.

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