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
  2% (1)
• B
  9% (4)
• C
  81% (35)
• D
  7% (3)

Explanation

FMEA (Failure Mode and Effects Analysis) is a living document that catalogs potential failure modes, their causes, and severity ratings. In the Control phase of DMAIC, keeping the FMEA current is essential because the Response Plan is built directly from it - when a control chart signals an out-of-control condition, the Response Plan tells operators what to do, and those responses are grounded in the failure modes documented in the FMEA. Without an updated FMEA, the Response Plan lacks a factual foundation for corrective action.

Why the distractors are wrong:

• A (X-Y Diagram): This is a Define/Measure-phase tool for mapping input-to-output relationships - useful for prioritization, not for sustaining control.
• B (Shewhart Chart): Control charts monitor process behavior but are outputs of the control system, not reference documents that feed the Response Plan.
• D (Customer Service Plan): Not a standard Lean Six Sigma document; it has no defined relationship to the Response Plan within the DMAIC framework.

Memory tip: Pair "FMEA + Response Plan" as the "What can go wrong / What to do about it" duo - the FMEA lists the risks, and the Response Plan prescribes the countermeasures. In the Control phase, they must stay in sync.

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