Data Documentation & Data Dictionary

[levelslip]

• Description: Create comprehensive data documentation
• Activities:
  • Create data dictionary:
    • Document every field in dataset
    • Describe data type, range, and units
    • Explain how each field is calculated
    • Document missing value conventions
  • Document data sources:
    • Describe where each field comes from
    • Document data collection methods
    • Explain any assumptions made
  • Document transformations:
    • List all transformations applied
    • Explain rationale for each transformation
    • Document any parameters used
  • Document data quality:
    • Describe quality checks performed
    • Document quality metrics achieved
    • Describe any issues discovered and resolved
  • Create data SLAs:
    • Define quality standards
    • Define expected data freshness
    • Define validation rules
  • Create data catalog:
    • List all available datasets
    • Describe dataset contents
    • Provide usage examples
• Deliverables: Data dictionary, data catalog, documentation