Microsoft Purview (formerly Azure Purview) is Microsoft's unified data governance service. It scans data sources across Azure, on-prem, and other clouds to build a catalog, capture lineage, and automatically classify sensitive data. Its integration with Microsoft's security and compliance ecosystem - and with Microsoft 365 information protection - is its main differentiator.
Scan, classify, catalog
Purview connects to sources (ADLS, Azure SQL, Synapse, Power BI, and beyond) and runs scans that register assets, infer schemas, and apply classifications using built-in and custom rules - detecting things like credit-card numbers, national IDs, and other sensitive patterns. The result is a searchable Data Map and catalog where assets carry both technical metadata and sensitivity labels.
Sensitive-data governance
Purview's strongest angle is privacy and compliance. Its classification engine and alignment with Microsoft Information Protection sensitivity labels let organizations find and govern PII and regulated data consistently - the same labels can extend from documents in Microsoft 365 to data in the warehouse. For Microsoft-centric enterprises with compliance obligations, that unified labeling is a meaningful advantage.
What it provides
- Data Map and catalog - automated asset inventory with search and a business glossary.
- Lineage across Azure Data Factory, Synapse, and Power BI.
- Classification of sensitive data with built-in and custom classifiers.
- Policy and access governance integrated with Azure and Microsoft compliance tooling.
Where it fits
- Azure- and Microsoft-centric organizations wanting governance native to their stack.
- Compliance-driven programs needing sensitive-data discovery and consistent labeling.
It is the Azure counterpart to AWS's Glue Catalog + Lake Formation and Google's Dataplex. As with those, the choice usually follows the cloud you're on; Purview's pull is deepest where Microsoft 365 and Azure security already anchor the organization.