The Improve Phase Flashcards
7 cards from real Lean Six Sigma Yellow Belt Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 The Improve Phase flashcards as text
A project team brainstorms 15 possible solutions. Which tool would best help them narrow the list to the top 3 for further evaluation?
Answer: Multi-voting or prioritization matrix
Multi-voting or a weighted prioritization matrix helps teams quickly narrow a large list of options by scoring feasibility and impact.
In the context of the Improve phase, what does 'solution scalability' mean?
Answer: The solution can be expanded to other areas or processes successfully
Scalability means the solution works not just in the pilot but can be replicated across similar processes or locations.
A team implements a new process and measures a defect rate of 3.2% versus the pre-improvement rate of 6.8%. What type of evidence does this represent?
Answer: Quantitative data-based evidence of improvement
Comparing measured defect rates before and after implementation provides quantitative, data-driven evidence of improvement.
Which statement about a kaizen event is most accurate?
Answer: It is a focused, short-duration team effort to rapidly improve a specific process
A kaizen event is an intensive, typically 3–5 day workshop where a cross-functional team makes rapid, targeted process improvements.
A team wants to reduce defects caused by operator error. Which improvement is most likely to be sustainable long term?
Answer: Installing a poka-yoke device that physically prevents the error
Physical poka-yoke devices prevent errors automatically and do not rely on human memory or behavior, making them the most durable solution.
After implementing process changes, a team notices some metrics improved while others worsened. What should they do?
Answer: Investigate the unintended consequences and adjust the solution
Unintended negative consequences must be investigated and addressed before proceeding to ensure the overall system improves.
In Lean, which of the following is an example of 'motion' waste?
Answer: An operator walking across the floor to retrieve a tool not stored at the workstation
Motion waste refers to unnecessary physical movement by people, such as excessive walking due to poor workstation layout.