Waste Muda

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Waste (Muda)

• Waste is anything other than the minimum amount
  of equipment, materials, parts, space, and
  workers time, which are absolutely essential to
  add value to the product.

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The Seven Wastes Found in Manufacturing
1. Waste of Waiting time 2. Transportation
waste 3. Processing waste 4. Inventory
waste 5. Waste of motion 6. Waste from
overproduction 7. Waste from product
defects This is the list used by Toyota.
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The Nine Wastes Defined by Cannon
1. Waste Caused by Work-in-Process 2. Waste
Caused by Defects 3. Processing waste 4. Waste
in Equipment 5. Waste in Expense 6. Waste in
Planning 7. Waste in Human Resources 8. Waste in
Operations 9. Waste in Startup
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Peoples Time in a Typical Factory
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Material Time in a Typical Factory
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Machine Time in a Typical Factory
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3 Ms

• MUDA In Japanese muda means Waste. However, it
  carries a much deeper connotation. In
  manufacturing Muda refers to any activity that
  does not add value.

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3 Ms

• MURA In Japanese mura means irregularity.
  Whenever a smooth flow of work is interrupted in
  an operators work, the flow of parts or
  machines, or the production schedule, there is
  mura.

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• MURI In Japanese muri means strenuous
  conditions for both workers and machines as well
  as for the work processes. Although muri does
  not imply mura or muda immediately, it will turn
  into one if left unattended.