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def identify_themes(self, interviews):
    """Find recurring patterns across interviews"""
    themes = {}
    theme_frequency = {}

    for interview in interviews:
        for statement in interview['statements']:
            theme = self.categorize_statement(statement)
            theme_frequency[theme] = theme_frequency.get(theme, 0) + 1

    # Sort by frequency
    return sorted(theme_frequency.items(), key=lambda x: x[1], reverse=True)

def analyze_survey_data(self, survey_responses):
    """Quantify and analyze survey results"""
    return {
        'response_rate': self.calculate_response_rate(survey_responses),
        'sentiment': self.analyze_sentiment(survey_responses),
        'key_findings': self.find_key_findings(survey_responses),
        'segment_analysis': self.segment_responses(survey_responses),
        'statistical_significance': self.calculate_significance(survey_responses)
    }

def triangulate_findings(self, interviews, surveys, analytics):
    """Cross-check findings across sources"""
    return {
        'confirmed_insights': self.compare_sources([interviews, surveys, analytics]),
        'conflicting_data': self.identify_conflicts([interviews, surveys, analytics]),
        'confidence_level': self.assess_confidence(),
        'recommendations': self.generate_recommendations()
    }

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Affinity Mapping Process:

Step 1: Data Preparation
  - Print or write user quotes on cards (one per card)
  - Include source (interview name, survey #)
  - Include relevant demographic info

Step 2: Grouping
  - Place cards on wall or digital board
  - Group related insights together
  - Allow overlapping if relevant
  - Move cards as relationships become clear

Step 3: Theme Identification
  - Name each grouping with theme
  - Move up one level of abstraction
  - Create meta-themes grouping clusters

Step 4: Synthesis
  - Describe each theme in 1-2 sentences
  - Capture key insight
  - Note supporting evidence

Example Output:

Theme: Discovery & Onboarding
  Sub-themes:
    - Learning curve too steep
    - Documentation unclear
    - Need guided onboarding
  Quote: "I didn't know where to start, wish there was a tutorial"
  Frequency: 8 of 12 users mentioned

Theme: Performance Issues
  Sub-themes:
    - App is slow
    - Loading times unacceptable
    - Mobile particularly bad
  Quote: "I just switched to competitor, too slow"
  Frequency: 6 of 12 users mentioned

// Document and communicate insights

class InsightDocumentation {
  createInsightStatement(insight) {
    return {
      title: insight.name,
      description: insight.detailed_description,
      evidence: {
        quotes: insight.supporting_quotes,
        frequency: `${insight.frequency_count} of ${insight.total_participants} participants`,
        data_sources: ['Interviews', 'Surveys', 'Analytics']
      },
      implications: {
        for_design: insight.design_implications,
        for_product: insight.product_implications,
        for_strategy: insight.strategy_implications
      },
      recommended_actions: [
        {
          action: 'Redesign onboarding flow',
          priority: 'High',
          owner: 'Design team',
          timeline: '2 sprints'
        }
      ],
      confidence: 'High (8/12 users mentioned, consistent pattern)'
    };
  }

  createResearchReport(research_data) {
    return {
      title: 'User Research Synthesis Report',
      executive_summary: 'Key findings in 2-3 sentences',
      methodology: 'How research was conducted',
      key_insights: [
        'Insight 1 with supporting evidence',
        'Insight 2 with supporting evidence',
        'Insight 3 with supporting evidence'
      ],
      personas_informed: ['Persona 1', 'Persona 2'],
      recommendations: ['Design recommendation 1', 'Product recommendation 2'],
      appendix: ['Raw data', 'Quotes', 'Demographic breakdown']
    };
  }

  presentInsights(insights) {
    return {
      format: 'Presentation + Report',
      audience: 'Product team, stakeholders',
      duration: '30 minutes',
      structure: [
        'Research overview (5 min)',
        'Key findings (15 min)',
        'Supporting evidence (5 min)',
        'Recommendations (5 min)'
      ],
      handout: 'One-page insight summary'
    };
  }
}

Validation Matrix:

Research Finding: "Onboarding is too complex"

Supporting Evidence:
  Source 1: Interviews
    - 8 of 12 users mentioned difficulty
    - Average time to first value: 45 min vs target 10 min
    - 3 users abandoned before completing setup

  Source 2: Analytics
    - Drop-off at step 3 of onboarding: 35%
    - Bounce rate on onboarding page: 28% vs site avg 12%

  Source 3: Support Tickets
    - 15% of support tickets about onboarding
    - Most common: "How do I get started?"

Confidence Level: HIGH (consistent across 3 sources)

Action: Prioritize onboarding redesign in next quarter