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What is Federated Data Architecture

Definition

A federated data architecture lets data remain distributed across multiple systems or domains while providing unified access and governance over it, so organisations query and manage data across sources without forcing everything into a single central repository.

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Provides unified access without centralising all data physically
Lets domains retain ownership of their own data
Applies consistent governance across distributed sources
Reduces the cost and disruption of mass data consolidation

Real World Example

A multinational adopts a federated data architecture so each regional unit keeps its data locally for compliance, while analysts query across regions through a unified, governed access layer without copying everything centrally.

FAQs

What is a federated data architecture?

An approach where data stays distributed across systems or domains but is accessed and governed through a unified layer.

How does it differ from centralisation?

Centralisation consolidates data into one repository, while federation leaves it in place and unifies access and governance over it.

When is federation preferable?

When data must stay distributed for compliance, ownership, or scale reasons, yet still needs unified access and governance.