Tableau
Map every Tableau workbook, dashboard, and published data source to the warehouse tables, models, and source systems they depend on.
Semantic Layers & BIWhy Tableau matters
Significant business logic lives inside Tableau: calculated fields, LOD expressions, data blending, and custom SQL baked into workbooks by analysts and business users. This logic is invisible to the warehouse, the transformation layer, and every other system in the stack. When an upstream table changes, nobody knows which workbooks break. When a dashboard number looks wrong, tracing whether the issue is in a calculated field, the underlying model, or the source system requires manual detective work.
Typedef parses Tableau content and connects every workbook and data source to its upstream dependencies and downstream consumers, so impact analysis reaches into the BI layer instead of stopping at the warehouse.
What Typedef unlocks
Impact analysis into the BI layer
Before changing an upstream table or model, see exactly which Tableau workbooks, dashboards, and data sources are affected.
Dashboard-to-source tracing
Follow any Tableau metric back through calculated fields, the data source, the warehouse, and all the way to the source system.
Hidden logic visibility
Make calculated fields, LOD expressions, and data blending logic inside Tableau visible to the rest of the platform for lineage and impact analysis.
Workbook cleanup and migration
Consolidate redundant workbooks, retire unused dashboards, or migrate BI tools with full visibility into upstream dependencies and downstream consumers.
Related integrations
Surface the business logic hidden inside LookML so impact analysis doesn't stop at the BI layer.
Surface the modeling layer inside Power BI so impact analysis and lineage do not stop at the BI boundary.
See the full inventory of saved questions and dashboards that depend on each warehouse table, including ones the data team does not know about.
See the full picture: what feeds every table and what depends on it across the stack.