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Lineage shows how data flows between Catalog assets. After Jobs sync tables—and after Match write-back when a project is linked to an asset—Zwiron records edges so you can see upstream producers and downstream dependents.

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Open Lineage

  1. Select Know → Lineage in the application sidebar, or
  2. Open an asset in Know → Catalog and use the lineage entry when available
Search or select an asset, then inspect upstream (what produces this asset) and downstream (what depends on it).

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What is recorded

Lineage is strongest when:
  • Connections are profiled into the Catalog
  • Assets exist and are searchable under Know → Catalog
  • Jobs or Match write-backs complete successfully

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How to use Lineage

  1. Open Know → Lineage.
  2. Select or search for an asset (for example a Snowflake table created by a Job).
  3. Inspect upstream sources and downstream dependents.
  4. Drill into column lineage when debugging transforms, renames, or Match survivorship fields.
  5. Use the graph before dropping a table or changing a Job so you know what breaks.

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Empty or incomplete graphs

Lineage is an impact view over recorded moves — it does not invent edges from undocumented external ETL. Prefer Zwiron Jobs for automatic lineage.
Last modified on October 10, 2026