Data Vault should allow for high-concurrency loading.
All source data (even if "dirty") must be stored in the Raw Vault.
The "Information Mart" layer is where users actually query the data.
Data Vault excels at "insert-only" logic. Your tests should mirror this.
Verify every Hub has a unique business key and no duplicates. Ensure the Load_Date and Record_Source are present.
Run row counts and sum-checks between the Source Landing Zone and the Raw Vault.