Data Quality · Unit 2
Keys, Domains, and Cross-field Invariants
Derive grain-aware keys, authoritative domains, and exact cross-field predicates with deterministic row and population evidence.
About this lesson
Derive grain-aware keys, authoritative domains, and exact cross-field predicates with deterministic row and population evidence.
Part of Executable Quality Contracts
This lesson belongs to a structured unit with 11 lessons, guided practice, checkpoints, and a reviewed assessment pathway.