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


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

Donald Reinertsen

To achieve the shortest sustainable lead time, Lean enterprises strive for a state of continuous flow, which allows them to move new system Capabilities quickly from concept to cash. Accomplishing this aim requires eliminating the traditional start–stop–start project initiation and development process, along with the incumbent phase gates that hinder flow (Principle #5).

There are three major keys to implementing flow:

  • Visualize and limit work in process (WIP) ...

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