#6 – Visualize and limit WIP, reduce batch sizes, and manage queue lengths

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Operating a product development process near full utilization is an economic disaster.

—Donald Reinertsen

To achieve the sustainably shortest lead time, Lean systems builders strive to achieve a state of continuous flow, whereby new system capabilities move quickly from concept to cash. Achieving continuous flow requires the elimination of the traditional start-stop-start project initiation and development process, along with the incumbent stage gates that hinder flow (Principle #5).

The three primary keys to implementing flow are to visualize and limit work in process, ...

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