Data Migration Requirements Document
This is a practical guide to building a requirements document for a data migration project — the documented needs the solution must meet, adapted to the realities of moving data from legacy systems into a new platform.
What a Requirements Document is
A requirements document is the documented needs the solution must meet. For the full concept and how it works in general, see Requirements Document. On a data migration project it plays the same role, tuned to this kind of work.
Why it matters for a Data Migration project
Data Migration projects live or die on moving data from legacy systems into a new platform. A well-built requirements document gives the team a shared, explicit reference for exactly that — reducing ambiguity, aligning stakeholders, and making problems visible early enough to act. Skipping it, or doing it generically, is how data migration projects drift into avoidable delay and cost.
What to include
- Business requirements
- Functional requirements
- Non-functional requirements
- Acceptance criteria
- Traceability
Data Migration-specific considerations
Tailor the requirements document to the risks that most often derail data migration projects:
- Data quality and lineage
- Field mapping errors
- Reconciliation and cutover
Example
On a real data migration project, the requirements document would be shaped by moving data from legacy systems into a new platform. In particular, it should explicitly account for the project’s biggest risks — data quality and lineage, field mapping errors, reconciliation and cutover — rather than treating them as afterthoughts.