Testing Data Vault-based Data Warehouse 〈99% EXCLUSIVE〉

Query a PIT table for a specific date in the past. Verify it correctly identifies the "active" Satellite records for that timestamp. 5. Business Vault & Logic Testing

Ensure "Zero Keys" or "Ghost Records" exist in Hubs to handle late-arriving data or missing lookups without breaking the model. 3. Data Integrity & Reconciliation This ensures that "what went in is what came out." Testing Data Vault-Based Data Warehouse

Check that Satellites are correctly attached to their parent Hub/Link and that the Hash_Diff (used for change detection) is calculating correctly. 2. Load Pattern Testing (Technical ETL) Query a PIT table for a specific date in the past

Data Vault excels at "insert-only" logic. Your tests should mirror this. Business Vault & Logic Testing Ensure "Zero Keys"

Test the performance of PIT tables; they should significantly speed up the joining of multiple Satellites.

Run row counts and sum-checks between the Source Landing Zone and the Raw Vault.

Run the same load twice. The system should recognize the data exists and result in zero new inserts.