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    Lesson 1 of 4

    AI Audit Framework

    From the course AI Audit & Testing

    Systematic AI auditing provides assurance that AI systems behave as intended, fairly, and safely.

    Types of AI Audits

    Internal Audits

    • Conducted by internal teams before and during deployment
    • Focus on technical performance and policy compliance
    • Ongoing monitoring and periodic reviews
    • Essential for high-risk AI systems

    External Audits

    • Independent third-party assessment
    • Required by regulation for highest-risk systems
    • Provides objective assurance to stakeholders
    • May be required for regulatory compliance

    Algorithmic Audits

    • Focus on decision-making processes and outcomes
    • Assess bias and fairness across demographic groups
    • Evaluate model transparency and explainability
    • Assess sociotechnical impacts

    Audit Scope

    TEVV Framework (NIST AI RMF)

    • Test: Measure system performance against requirements
    • Evaluate: Assess AI system characteristics and context
    • Verify: Confirm requirements are met as designed
    • Validate: Confirm AI system works for intended purpose

    Audit Dimensions

    1. Performance Testing
       - Accuracy, precision, recall, F1
       - Subgroup performance analysis
       - Edge case and stress testing
    
    2. Fairness Assessment
       - Demographic parity
       - Equal opportunity
       - Disparate impact analysis
       - Intersectional fairness
    
    3. Robustness Testing
       - Adversarial attacks
       - Out-of-distribution inputs
       - Data corruption scenarios
    
    4. Transparency Audit
       - Explainability of decisions
       - Documentation completeness
       - Human review mechanisms
    
    5. Governance Review
       - Policy compliance
       - Accountability structures
       - Incident history
    

    Key Takeaways

    • •AI audits span internal, external, and algorithmic types with different objectives
    • •NIST TEVV framework covers Test, Evaluate, Verify, and Validate dimensions
    • •Audit scope addresses performance, fairness, robustness, transparency, and governance
    • •External audits provide independent assurance required for high-risk applications
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