Sunday, March 5, 2017

Lean Doesn't "Sacrifice Quality"

Ah, the irony of an article that seeks to dispel "myths" about Lean Sigma then going and spreading an unfortunate myth about Lean.

See this article from Quality Mag:

10 Reasons Organizations Do Not Use Lean Six Sigma

They bust a few myths, but then they say this, unfortunately:
"By only doing Lean [and not Six Sigma] you sacrifice the benefits of quality." 
No no no no no no.

This is just factually incorrect.

Again, I'll point you to the Toyota web page for the Toyota Production System.

TPS is about flow AND quality. They go hand in hand. Better flow leads to better quality, and vice versa.

Lean and TPS have so many methods and mindsets that improve quality in very direct ways, such as:

  • Error proofing
  • Andon cords (stop the line)
  • A culture of not blaming individuals for systemic problems
Stop saying Lean alone would hurt quality. Somebody who doesn't understand Lean might go "implement Lean tools" in a way that hurts quality, but that's their fault (yes, I'll blame somebody) and not the fault of Lean.

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