Azure Purview is Microsoft’s unified data governance service that helps you discover and get insight into your available data. It replaces Azure Data Catalog and is now based on Apache Atlas, one of the leading open-source data governance and metadata frameworks. Apache Atlas was created by Hortonworks and big names within finance, pharma, etc. such as JP Morgan, Merck and Aetna. Therefore, Apache Atlas and also Azure Purview, has rich features for tagging assets to meet security and compliance requirements.
Azure Purview is currently in public preview and available for free until February 28th 2021.