Mid-LevelQA Methodology & Strategy
What is risk-based testing and how do you implement it?
- risk-based testing
- prioritization
- test strategy
Answer it first, then compare. Nothing here is saved or scored.
Model answer
Risk-based testing prioritizes testing effort based on probability of failure × impact of failure. Implementation: (1) Identify risk factors, new code, complex logic, third-party integrations, historically buggy areas. (2) Assign risk scores - high/medium/low for probability and impact. (3) Allocate testing effort proportionally - high-risk areas get thorough testing, low-risk areas get smoke tests. (4) Review risks each sprint - new features shift the risk landscape. Tools: risk matrices, heatmaps. This ensures limited testing time targets the highest-value areas.
What interviewers listen for
- Risk-based prioritisationYou can defend skipping coverage on a path because the risk maths supports it.
- Test design fluencyYou apply equivalence partitioning and decision tables to concrete inputs in real time.
- Metric judgmentYou distinguish between metrics that drive learning and metrics that drive theatre.
- Strategy under constraintYou can produce a defensible plan when the team has half the time and twice the scope.