Six Thinking Hats

Six Thinking Hats for Testing

Quick Hat Rotation (30 min):

🤍 WHITE (5 min) - Facts only: metrics, data, coverage
❤️ RED (3 min) - Gut feelings (no justification needed)
🖤 BLACK (7 min) - Risks, gaps, what could go wrong
💛 YELLOW (5 min) - Strengths, opportunities, what works
💚 GREEN (7 min) - Creative ideas, alternatives
🔵 BLUE (3 min) - Action plan, next steps

Example for "API Test Strategy":

• 🤍 47 endpoints, 30% coverage, 12 integration tests
• ❤️ Anxious about security, confident on happy paths
• 🖤 No auth tests, rate limiting untested, edge cases missing
• 💛 Good docs, CI/CD integrated, team experienced
• 💚 Contract testing with Pact, chaos testing, property-based
• 🔵 Security tests first, contract testing next sprint

Quick Reference Card

The Six Hats

When to Use Each Hat

Hat Details

🤍 White Hat - Facts & Data

Output: Quantitative testing baseline

Questions:

• What test coverage do we have?
• What is our pass/fail rate?
• What environments exist?
• What is our defect history?

Example Output:
Coverage: 67% line, 45% branch
Test Suite: 1,247 unit, 156 integration, 23 E2E
Execution Time: Unit 3min, Integration 12min, E2E 45min
Defects: 23 open (5 critical, 8 major, 10 minor)

🖤 Black Hat - Risks & Cautions

Output: Comprehensive risk assessment

Questions:

• What could go wrong in production?
• What are we NOT testing?
• What assumptions might be wrong?
• Where are the coverage gaps?

HIGH RISKS:
- No load testing (production outage risk)
- Auth edge cases untested (security vulnerability)
- Database failover never tested (data loss risk)

💛 Yellow Hat - Benefits & Optimism

Output: Strengths and opportunities

Questions:

• What's working well?
• What strengths can we leverage?
• What quick wins are available?

STRENGTHS:
- Strong CI/CD pipeline
- Team expertise in automation
- Stakeholders value quality

QUICK WINS:
- Add smoke tests (reduce incidents)
- Automate manual regression (save 2 days/release)

💚 Green Hat - Creativity

Output: Innovative testing ideas

Questions:

• How else could we test this?
• What if we tried something completely different?
• What emerging techniques could we adopt?

IDEAS:
1. AI-powered test generation
2. Chaos engineering for resilience
3. Property-based testing for edge cases
4. Production traffic replay
5. Synthetic monitoring

❤️ Red Hat - Emotions

Output: Team gut feelings (NO justification needed)

Questions:

• How confident do you feel about quality?
• What makes you anxious?
• What gives you confidence?

FEELINGS:
- Confident: Unit tests, API tests
- Anxious: Authentication flow, payment processing
- Frustrated: Flaky tests, slow E2E suite

🔵 Blue Hat - Process

Output: Action plan with owners and timelines

Questions:

• What's our strategy?
• How should we prioritize?
• What's the next step?

PRIORITIZED ACTIONS:
1. [Critical] Address security testing gap - Owner: Alice
2. [High] Implement contract testing - Owner: Bob
3. [Medium] Reduce flaky tests - Owner: Carol

Session Templates

Solo Session (30 min)

# Six Hats Analysis: [Topic]

## 🤍 White Hat (5 min)
Facts: [list metrics, data]

## ❤️ Red Hat (3 min)
Feelings: [gut reactions, no justification]

## 🖤 Black Hat (7 min)
Risks: [what could go wrong]

## 💛 Yellow Hat (5 min)
Strengths: [what works, opportunities]

## 💚 Green Hat (7 min)
Ideas: [creative alternatives]

## 🔵 Blue Hat (3 min)
Actions: [prioritized next steps]

Team Session (60 min)

• Each hat: 10 minutes
• Rotate through hats as group
• Document on shared whiteboard
• Blue Hat synthesizes at end

Agent Integration

// Risk-focused analysis (Black Hat)
const risks = await Task("Identify Risks", {
  scope: 'payment-module',
  perspective: 'black-hat',
  includeMitigation: true
}, "qe-regression-risk-analyzer");

// Creative test approaches (Green Hat)
const ideas = await Task("Generate Test Ideas", {
  feature: 'new-auth-system',
  perspective: 'green-hat',
  includeEmergingTechniques: true
}, "qe-test-generator");

// Comprehensive analysis (All Hats)
const analysis = await Task("Six Hats Analysis", {
  topic: 'Q1 Test Strategy',
  hats: ['white', 'black', 'yellow', 'green', 'red', 'blue']
}, "qe-quality-analyzer");

Agent Coordination Hints

Memory Namespace

aqe/six-hats/
├── analyses/*        - Complete hat analyses
├── risks/*           - Black hat findings
├── opportunities/*   - Yellow hat findings
└── innovations/*     - Green hat ideas

Fleet Coordination

const analysisFleet = await FleetManager.coordinate({
  strategy: 'six-hats-analysis',
  agents: [
    'qe-quality-analyzer',        // White + Blue hats
    'qe-regression-risk-analyzer', // Black hat
    'qe-test-generator'           // Green hat
  ],
  topology: 'parallel'
});

Related Skills

• risk-based-testing - Black Hat deep dive
• exploratory-testing-advanced - Green Hat exploration
• context-driven-testing - Adapt to context

Anti-Patterns

Remember

Separate thinking modes for clarity. Each hat reveals different insights. Red Hat intuition often catches what Black Hat analysis misses.

Everyone wears all hats. This is parallel thinking, not role-based. The goal is comprehensive analysis, not debate.