The main output of the Control phase is:

Question

Options

• AProcess map
• BControl plan
• CFishbone diagram
• DProject charter

• A
  4% (1)
• B
  91% (21)
• C
  4% (1)

Explanation

Option B is correct because the Control phase of DMAIC is specifically designed to sustain improvements - and the control plan is the primary deliverable that documents how the process will be monitored, who is responsible, and what actions to take when the process goes out of control.

• A (Process map) is created in the Define or Measure phase to document the current state of the process - it's an input to improvement, not a control output.
• C (Fishbone/Ishikawa diagram) is an Analyze phase tool used to identify root causes of defects, not to sustain gains.
• D (Project charter) belongs to the Define phase - it scopes the project before any analysis or improvement work begins.

Memory tip: Think "Control phase = Control plan" - the phase and its main output share the same first word. The control plan is the handoff document to the process owner, ensuring the team's hard work doesn't erode after the project closes.

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