Product Management Product Quality Management 4 — Questions and Answers
Question 1: Which quality methodology originated at Motorola and aims to reduce process defects to 3.4 per million opportunities?
- Lean Manufacturing
- Six Sigma (Correct answer)
- Total Quality Management
- Agile
Correct answer: Six Sigma
Six Sigma was developed at Motorola and uses statistical methods to reduce process variation, targeting fewer than 3.4 defects per million opportunities.
Question 2: A product manager finds that users rate the product 4/5 for ease of use but 2/5 for reliability. What should be prioritized?
- Improving ease of use further
- Investing in reliability improvements (Correct answer)
- Adding new features
- Increasing marketing spend
Correct answer: Investing in reliability improvements
Reliability is a critical quality dimension; a low reliability score directly undermines user trust and product adoption regardless of other scores.
Question 3: What is the primary goal of regression testing in a continuous delivery pipeline?
- Find new feature bugs
- Ensure previously working functionality isn't broken by new changes (Correct answer)
- Measure code coverage percentage
- Test performance under load
Correct answer: Ensure previously working functionality isn't broken by new changes
Regression testing verifies that new code changes haven't inadvertently broken existing functionality that previously worked.
Question 4: Which approach to quality management emphasizes continuous small improvements involving all employees?
- Six Sigma
- Kaizen (Correct answer)
- Waterfall QA
- Acceptance Testing
Correct answer: Kaizen
Kaizen is a Japanese philosophy meaning 'continuous improvement,' involving all team members in making small, incremental process improvements.
Question 5: A PM is setting quality acceptance criteria for a new feature. What does 'Definition of Done' (DoD) represent?
- A user story template
- A checklist of conditions a feature must meet to be considered complete and release-ready (Correct answer)
- The sprint backlog
- A customer acceptance letter
Correct answer: A checklist of conditions a feature must meet to be considered complete and release-ready
Definition of Done is a shared team agreement listing all quality and completion criteria that must be satisfied before work is considered finished.
Question 6: In the context of product quality, what does 'conformance quality' refer to?
- How innovative a product is compared to competitors
- The degree to which a product meets its specified design requirements (Correct answer)
- Customer willingness to pay a premium price
- The number of features delivered per sprint
Correct answer: The degree to which a product meets its specified design requirements
Conformance quality measures how well a product matches its intended design specifications and requirements, independent of how good those specs are.
Question 7: Which quality dimension is MOST at risk when a team skips user acceptance testing (UAT) before a major release?
- Performance efficiency
- Fitness for use / user satisfaction (Correct answer)
- Code maintainability
- Test automation coverage
Correct answer: Fitness for use / user satisfaction
UAT validates that a product is fit for its intended use from the end-user perspective; skipping it risks shipping a product that doesn't meet actual user needs.
Product Management Product Quality Management 4
Which quality methodology originated at Motorola and aims to reduce process defects to 3.4 per million opportunities?