Medallion Architecture

Concepts: paMedallion

What They Want to Hear 'Three layers. Bronze is the raw safety net: exact copy of source data, append-only. Silver is where data engineering happens: deduplication, type casting, standardization. Gold is where business logic lives: aggregations, KPIs, metrics. The key insight is that Bronze lets you re-derive everything downstream. If Silver gets corrupted, you rebuild it from Bronze.'