Data Warehouse

A data warehouse is a central platform that stores clean, organized data from many systems, built for analysis rather than day-to-day operations. In experimentation it gives teams one set of definitions for audiences and metrics and one trusted record of results, which avoids manual exports and conflicting numbers. With a two-way connection, you can target tests from warehouse data and send outcomes back for analysis. Example: Popular data warehouses include BigQuery, Redshift, and Snowflake. You can use each to pull your "loyal customers" audience from the warehouse to target a test for loyal users, then return the results for finance to review.