Data Migration

Moving data from one schema, store, platform, or environment to another while preserving correctness and availability.

Why it matters

Data Migration is useful because it gives engineers a shared vocabulary for designing, building, reviewing, and operating real systems. It helps teams reason about tradeoffs, failure modes, performance, and maintainability instead of treating implementation details as isolated facts.

Where it fits

This concept belongs in the data track, inside the data-engineering layer. It often appears alongside data storage, data transformation.

Mental model

Think of Data Migration as a named pattern or capability. When you can recognize it, you can ask better questions: what problem does it solve, what assumptions does it make, what can fail, and what neighboring concepts should be considered?

Common mistakes

• Treating the term as a buzzword instead of connecting it to concrete engineering decisions.
• Ignoring related constraints such as scale, security, ownership, observability, and failure recovery.

Related concepts

Study this together with data storage, data transformation to understand how it behaves in a larger system.