Master Data Services (MDS) historically helped organizations manage shared reference entities such as customers, products, and locations. It addressed governance rather than ordinary application transactions.
Concepts and context
An MDS model groups entities, members and attributes. Business rules, hierarchies, versioning, and stewardship workflows help maintain consistent business identities and values across systems.
Practical application
For a product-master example, define stable product codes, permitted categories, naming standards, approvals and downstream synchronization contracts. Evaluate duplicates by business key and keep change history.
Compatibility and cautions
Microsoft removed MDS from SQL Server 2025. Maintain existing installations only according to supported-version guidance and plan migration before an upgrade. Modern alternatives include governed data tables, controlled APIs, and dedicated MDM platforms.
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