The Control Plan is the road map to sustaining the improvements made through the Lean Six Sigma project and should therefore involve keeping the __________ up to date as a means of supporting the…

Question

Options

• AX-Y Diagram
• BShewhart Chart
• CFMEA
• DCustomer Service Plan

• A
  10% (2)
• B
  15% (3)
• C
  70% (14)
• D
  5% (1)

Explanation

FMEA (Failure Mode and Effects Analysis) is the correct choice because it is a living document that anticipates potential failures, their causes, and their effects - making it the natural companion to a Response Plan. When a defect is detected, the FMEA already maps out what could go wrong and why, so the Response Plan can prescribe corrective actions; keeping the FMEA current ensures those responses stay relevant as the process evolves.

• A (X-Y Diagram) is wrong - it's used in the Measure/Analyze phases to map inputs (X's) to outputs (Y's), not to sustain control or guide defect response.
• B (Shewhart Chart) is wrong - control charts detect variation signals, but they don't document failure modes or prescribe responses; they're an input to the Control Plan, not the document updated alongside the Response Plan.
• D (Customer Service Plan) is wrong - this is not a standard Lean Six Sigma tool and plays no formal role in the Control phase framework.

Memory tip: Think "FMEA = Failure Map Everyone Anticipates." It's the map the team updates so the Response Plan always has a route to follow when something breaks.

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