From Data Warehouse to Lakehouse: Modern Analytics with Medallion Architecture

Tech Talks Aug 12 2025
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Governance and quality with Bronze-Silver-Gold layers

How do you balance data quality, cost, and speed with medallion layers in a lakehouse approach?

Combine data warehousing discipline with data lake flexibility with Lakehouse.

Lakehouse and Medallion Architecture

Lakehouse approach to modern analytics; It combines the discipline of a data warehouse with the flexibility of a data lake.

Layers

  • Bronze: raw data, schema-on-read
  • Silver: cleaned and consolidated data
  • Gold: tables optimized for business units

Good Practices

  • Data lineage and quality metrics
  • Per-tier lifecycle policies for cost

The result: a scalable, auditable, and flexible analytics platform.