Risk-Based Testing

<default_to_action> When planning tests or allocating testing resources:

1. IDENTIFY risks per component (use 1-5 scale for probability and impact)
2. PRIORITIZE: Critical (20+) → High (12-19) → Medium (6-11) → Low (1-5)
3. ALLOCATE effort: 60% critical, 25% high, 10% medium, 5% low
4. REASSESS continuously: Production incidents raise risk; stable code lowers it </default_to_action>

Quick Reference Card

When to Use

• Planning sprint/release test strategy
• Deciding what to automate first
• Allocating limited testing time
• Justifying test coverage decisions

Effort Allocation by Risk Score

Score	Priority	Effort	Action
20-25	Critical	60%	Comprehensive testing, multiple techniques
12-19	High	25%	Thorough testing, automation priority
6-11	Medium	10%	Standard testing, basic automation
1-5	Low	5%	Smoke test, exploratory only

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Apply Test Depth by Risk

await Task("Risk-Based Test Generation", {
  critical: {
    features: ['checkout', 'payment'],
    depth: 'comprehensive',
    techniques: ['unit', 'integration', 'e2e', 'performance', 'security']
  },
  high: {
    features: ['auth', 'user-profile'],
    depth: 'thorough',
    techniques: ['unit', 'integration', 'e2e']
  },
  medium: {
    features: ['search', 'notifications'],
    depth: 'standard',
    techniques: ['unit', 'integration']
  },
  low: {
    features: ['admin-panel', 'settings'],
    depth: 'smoke',
    techniques: ['smoke-tests']
  }
}, "qe-test-generator");

Step 3: Reassess Dynamically

// Production incident increases risk
await Task("Update Risk Score", {
  feature: 'search',
  event: 'production-incident',
  previousRisk: 9,
  newProbability: 5,  // Increased due to incident
  newRisk: 15         // Now HIGH priority
}, "qe-regression-risk-analyzer");

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ML-Enhanced Risk Analysis