Hasura's Data Delivery Network (DDN) implements a Universal Data Access Layer (UDAL) through a supergraph architecture, serving as both orchestrator and guardian in decentralized data environments. To unlock its full potential, your architecture needs to track the evolution of metadata, which defines what's possible, who can do what, and how domains interact. This is essential for robust governance and intelligence. Temporal tracking identifies patterns like semantic drift, where concepts evolve over time, and provides insights into usage patterns, quality impact, cross-domain intelligence, and predictive analysis. By combining temporal metadata with operational analytics, you gain powerful insights into your data ecosystem's evolution and can proactively address semantic inconsistencies, providing better governance and actionable intelligence.