Six Sigma Green Belt Certification Practice Exam

Which lean concept describes an improvement initiative in a specific area, by a number of individuals from different groups, over a short period of time?

1. a. Kaizen

2. b. Poka-yoke

3. c. Kaizen blitz

4. d. TPM

The correct answer is: c. Kaizen blitz

The concept that describes an improvement initiative undertaken by a diverse group of individuals from different areas over a short period of time is indeed Kaizen blitz. This approach focuses on creating rapid, focused improvements within a specific area or process, engaging team members from various departments to foster collaboration and a shared understanding of the issues at hand. Kaizen blitz emphasizes quick actions and results, often taking place over a few days, to initiate improvements and demonstrate the potential for change in a concentrated effort. By bringing together people from various functions, this approach benefits from different perspectives and expertise, enhancing the quality and effectiveness of the improvement process. In contrast, while Kaizen itself refers to continuous improvement, it is generally a broader, ongoing philosophy rather than a short-term, intensive initiative. Poka-yoke is about error-proofing processes and preventing mistakes, which doesn't specifically align with the timeframe or team dynamic described. Total Productive Maintenance (TPM) focuses on equipment maintenance rather than improvement initiatives in a broad process context. Therefore, Kaizen blitz is the most accurate choice to describe the scenario outlined in the question.