Business Analyst: What is a data migration strategy?

Data migration strategy — plan for moving data between systems.

Strategies:

• Big Bang — all data at once.
• Phased — gradual migration.
• Parallel — run both systems.
• Trickle — continuous migration.

Steps:

1. Assess data.
2. Map fields.
3. Clean data.
4. Transform data.
5. Test migration.
6. Execute migration.
7. Validate results.

Considerations:

• Data volume.
• Downtime tolerance.
• Data quality.
• Rollback plan.

BA role: Define requirements and validate data.