COUPS

What Is a Data Lakehouse?

A data lakehouse combines the low-cost storage and schema flexibility of a data lake with the governance, performance, and query capabilities of a data warehouse. The core idea is a single storage layer supporting both structured analytical queries and raw, unstructured data, with governance and access controls applied across the entire estate.

What Is a Data Mesh?

Data mesh is a decentralised architecture pattern treating data as a product owned by the business domain that generates it. Each domain is responsible for publishing its data as a product meeting defined standards of quality, accessibility, and documentation. Data mesh is an organisational and architectural pattern, not a specific technology.

When to Choose Each?

The lakehouse works well for organisations with centralised data teams, clear source system data ownership, and a manageable number of domains. The data mesh works well for large organisations with strong domain ownership culture, a history of centralised warehouse bottlenecks, and engineering maturity in domain teams to build and maintain data products.