lean thinking

- lean ・Thinking

• Amazon

  • After Lean Startup was talked about, you might think, “Is there a new book out?” but the original first edition was published in 1996.

• The book is the beginning of the beginning of the crystallization of the concept of Lean in the language of Lean.

Part 1: Lean Principles

• Phosphorus thinking and waste

• value

• Stream of Value

• flow

• pull

• Pursuit of perfection Part 2: Leap to Lean: From Thought to Action

• Simple case

• Complicated cases

• touchstone

• Lean Thinking and German Technological Supremacy

• Giant Toyota, Small Showa Ironworks

• plan of action Part III.

• A ditch for a creek, a valley for a ditch.

• Dreaming of perfection

• Illusion that batch processing is more efficient

  • Taichi Ohno
    • Agriculture = annual harvest season = annual batch
    • Reducing batch size is not possible due to climate constraints

• 1913 Henry Ford “Model T Ford” final assembly reduced man-hours by 90% by making it a flow operation.

  • Note: The same Model T Ford was produced for 19 years
  • Optimization of mass production of the same thing

• After WW2: Taichi Ohno

  • Flow production system” in high-mix low-volume production is necessary
    • Contrastive structure of batch production system v.s. [flow-through manufacturing system
    • Stream Metaphor
      • Not a big river, but a creek

• pull

  • Upstream does not produce a product or service until downstream customers demand it
    • Related Delayed Evaluation.

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