Modern QA2026Question 2
Log inJoin
13 / 14 · Book 22 · From Ad Hoc Testing to Strategic Quality Engineering← prev⊞ allnext →Get the book →

1.13Question 2

Prompt: How do you convince a team that 400 well-targeted tests are better than 2,000 untargeted ones? What a strong answer should cover:

  • The concept of risk-based testing and effort proportionality
  • Concrete metrics: defect escape rate, cost per bug found, time-to-feedback
  • Framing in terms leadership cares about (revenue risk, release velocity) Example answer:
  • I would pull the defect escape data and show which areas produce the most production bugs. Then I would map the current 2,000 tests to those areas. Typically, you find that the riskiest 20% of features receive the same coverage as the least risky 20%. I would propose an experiment: for two sprints, reallocate effort toward the high-risk areas and measure whether escaped defects decrease. Data speaks louder than opinions.