Testing Data Vault-based Data Warehouse ✪

Insert a record with a modified attribute. Verify that a new Satellite record is created with the updated data while the old record remains (historical tracking).

Verify every Hub has a unique business key and no duplicates. Ensure the Load_Date and Record_Source are present. 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) Insert a record with a modified attribute

Since Data Vault is pattern-based, the first layer of testing ensures the "plumbing" follows the methodology. Testing Data Vault-Based Data Warehouse

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