Lean Six Sigma Green Belt DMAIC: Define Phase Concepts 1 Flashcards
6 cards from real Lean Six Sigma Green Belt Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
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Which component of the Project Charter explicitly defines what is included and excluded from a Lean Six Sigma project?
Answer: Project scope
The project scope sets the boundaries of the project — what processes, products, locations, or time periods are in and out of scope. Without a clearly defined scope, teams risk scope creep and loss of focus.
A well-written problem statement in the Define phase should include which of the following?
Answer: A description of what is wrong, where it occurs, and its measurable magnitude
A problem statement describes the current gap — what is happening, where, and to what extent — without assigning blame or proposing solutions. Jumping to solutions in the Define phase bypasses proper analysis.
Which model used in the Define phase categorizes customer requirements into must-be, one-dimensional, and attractive (delighter) features?
Answer: Kano model
The Kano model classifies VOC into three tiers: must-be requirements (basic expectations), one-dimensional requirements (more is better), and attractive features (unexpected delighters). It helps teams prioritize which CTQs drive the most customer satisfaction.
What is the primary purpose of a Critical to Quality (CTQ) tree in the Define phase?
Answer: To break down broad customer needs into specific, measurable performance requirements
A CTQ tree translates high-level VOC statements (e.g., 'I want fast service') into quantifiable requirements (e.g., 'order fulfilled within 2 hours'). This bridges the gap between customer language and measurable project targets.
In the Define phase, a RACI matrix is primarily used to:
Answer: Clarify team member roles and decision-making authority for the project
RACI (Responsible, Accountable, Consulted, Informed) ensures every team member and stakeholder understands their role. Defining accountability early in the Define phase prevents confusion and conflict during later DMAIC phases.
Which of the following best describes a SMART goal statement in the Define phase?
Answer: A specific, measurable, achievable, relevant, and time-bound target for process improvement
A SMART goal statement defines the desired end state in measurable terms with a deadline (e.g., 'Reduce order processing errors from 8% to 2% by Q4'). This gives the team a clear target and a way to know when they have succeeded.