Definition
What is Medallion architecture?
Also known as: Bronze, silver, gold layers, Multi-hop architecture
Medallion architecture is a way of organising lakehouse data into three layers of increasing quality: bronze holds raw data as ingested, silver holds cleaned and conformed data, and gold holds business-ready tables and aggregates for analytics, reporting and machine learning.
Each layer has a clear contract, which makes pipelines easier to test, reprocess and govern. Raw data is never lost, because bronze keeps it, while consumers only read from the curated silver and gold layers.
Read more about Medallion architecture
- Medallion Architecture on Databricks: A Practical GuideHow to design bronze, silver and gold layers on Databricks that stay reliable at scale — with patterns for ingestion, data quality, governance and cost.
- How We Productionise Data and AI on Databricks: Bundles, CI/CD, Testing, MLOps and OperationsOur playbook from notebook to production: repo layout, Asset Bundles, CI/CD with service principals, data testing, idempotent backfills, MLflow and operations.
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