ISO 42001 Compliance and Checklist

Compliance Checklist

1. Traceability & Logging

ISO 42001 Requirement	Implementation	Status
Operation logging	Logging system in logging_config.py	✅ Complete
Data traceability	Logs with timestamps and user	✅ Complete
Record integrity	SHA-256 log hashes	✅ Complete
Information backup	Automatic backups in results/logs/backup/	✅ Complete

2. Validation & Verification

ISO 42001 Requirement	Implementation	Status
Automated tests	Unit and integration tests	✅ Complete
Quality control	CI/CD with GitHub Actions	✅ Complete
Code verification	flake8, mypy for types	✅ Complete

3. Risk Management

ISO 42001 Requirement	Implementation	Status
Risk assessment	risk_assessment.md document	✅ Complete
Mitigation measures	Code validations	✅ Complete
System boundaries	Documented in technical guide	✅ Complete

Detailed Implementation

1. Logging & Traceability System

1.1 Log Format

# Example generated log
[2025-05-22 12:10:00.123] INFO | user=jsmith | hash=a1b2c3 | Starting NDVI calculation

• Timestamp: Millisecond precision
• User: Operator identification
• Hash: Integrity verification
• Message: Clear action description

1.2 Backup System

• Automatic log backup
• SHA-256 verification
• 90-day retention
• Location in results/logs/backup/

2. Quality Validation & Control

2.1 Automated Tests

• Unit tests (tests/unit/)
• Integration tests (tests/integration/)
• Code coverage > 80%

2.2 CI/CD

• GitHub Actions
• Style verification (flake8)
• Type checking (mypy)

3. Risk Management

3.1 Implemented Validations

• Input data verification
• Limits and range control
• Anomaly detection

3.2 Mitigation Measures

• Detailed error logging
• Automatic backup
• Safe default values

4. Reproducibility

4.1 Version Control

• Git for source code
• Semantic versioning
• CHANGELOG.md updates

4.2 Documentation

• Complete README.md
• Technical documentation
• User guides

5. Security & Access Control

5.1 Data Protection

• Configured .gitignore
• Configuration separation
• GitHub access control

5.2 Secure Configuration

• .env.example without sensitive data
• Safe default values
• Configuration validation

Implementation Examples

Logging System

# Logging configuration in logging_config.py
log_format = (
    "[{time:YYYY-MM-DD HH:mm:ss.SSS}] "
    "{level: <8} | "
    "user={extra[user]} | "
    "hash={extra[hash]} | "
    "{message}"
)

Input Validation

def calculate_ndvi(red_band: np.ndarray, nir_band: np.ndarray) -> np.ndarray:
    """NDVI calculation with ISO 42001 validations."""
    # Input validation
    if red_band.shape != nir_band.shape:
        raise ValueError("Bands must have same dimensions")
    
    # Division by zero control
    denominator = nir_band + red_band
    ndvi = np.where(denominator > 0,
                   (nir_band - red_band) / denominator,
                   0)
    
    # Operation logging
    logger.info(f"NDVI calculated: shape={ndvi.shape}, range=[{ndvi.min():.2f}, {ndvi.max():.2f}]")
    return ndvi