Testing Data Vault-based Data Warehouse May 2026

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

Verify that the hashing algorithm (MD5 or SHA-1) produces identical keys for the same business keys across different source systems. 4. Point-in-Time (PIT) & Bridge Table Validation Testing Data Vault-Based Data Warehouse

The Business Vault contains transformed data (e.g., calculated fields or cleaned addresses). Test the performance of PIT tables; they should

Run row counts and sum-checks between the Source Landing Zone and the Raw Vault. Test the performance of PIT tables

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

Intentionally feed "bad" data into the pipeline to ensure it is caught by error Satellites rather than crashing the load. Success Metrics (KPIs)