The catalog crawled the estate and came back with forty thousand tables, a third of them owned by people who left two reorganisations ago. It is complete, it is searchable, and nobody uses it to settle an argument. TopQuadrant governs the layer above the inventory: agreed definitions, named stewards, and a review cycle that keeps the record true.
Trusted to govern the data behind the world's most regulated decisions.
A catalog answers what exists and where. It rarely answers which of these is the one to use, who says so, and when that was last checked. Those are governance questions, and they are the ones people actually arrive with. They are also the ones an agent arrives with: asked about revenue, it finds four fields called revenue, no signal about which is authoritative, and picks one.
Prebuilt connectors, so the governed record stays in step with the catalogs, warehouses, and operational systems it describes.
To a first governed domain in production, working from prebuilt models rather than a blank slate.
One governed definition per business term, resolving to the actual columns and systems that carry it.
Ownership and stewardship
Because an entry with no owner and no review date is a search result, not a governed asset. Trust comes from accountability: a named steward per domain, a stated review cadence, and a visible date the record was last confirmed. Once an entry can go stale in public, it stops going stale.
Glossary and technical metadata
The gap most estates never close is the one between what the business calls something and where it physically lives. Map each governed term to the columns, tables, and systems that carry it, and the mapping becomes an inspectable asset. Suggestions can be proposed automatically, but a steward approves before anything becomes authoritative.
Lineage and provenance
A lineage diagram generated once is a picture. Lineage that holds up in a review is a set of governed facts: who asserted this relationship, when, on what basis, and what changed since. Held that way, it answers the question a regulator actually asks, which is not what the flow looks like but who signed it off.
Interoperability
No, and you should not want to. Catalogs are good at discovery and at breadth of coverage. What they lack is a governed source of meaning for the entries they hold. TopQuadrant sits alongside them as that source, and the catalog reflects the same definitions your stewards maintain rather than a second version of them.