Source-to-Target Mapping

For each data source, capture:

  • Source system and tables.
  • Transformation rules.
  • Target tables and fields.
  • Business logic applied.

ETL / ELT Process Documentation

  • End-to-end data flow diagrams.
  • Tools used.
  • Load frequency and scheduling.
  • Dependencies between processes.

Error Handling & Reprocessing

  • Failure scenarios.
  • Alerting mechanisms.
  • Re-run procedures.