Lean Principles defines for us seven specific areas where ________ typically exists in our processes.

Question

Options

• AWaste
• BExcess inventory
• CVariation
• DData error

• A
  83% (49)
• B
  10% (6)
• C
  3% (2)
• D
  3% (2)

Explanation

Lean Principles identifies seven specific areas where waste (option A) exists in processes - famously known as the "7 Wastes" or "TIMWOOD" (Transport, Inventory, Motion, Waiting, Overproduction, Overprocessing, Defects). This framework, rooted in the Toyota Production System, gives organizations a structured lens to identify and eliminate non-value-adding activities.

Why the distractors are wrong:

• B (Excess inventory) is actually one of the seven wastes, not the overarching category they all fall under.
• C (Variation) is a key concept in Six Sigma (not Lean), where reducing variation drives quality improvement.
• D (Data error) is too narrow and specific; it's not a formal Lean construct.

Memory tip: Remember the acronym TIMWOOD - each letter names one of the seven wastes. Since all seven items in TIMWOOD are types of waste, "waste" must be the umbrella term the question is asking about.

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