Data Migration Planning: Minimising Risk in System Transitions
Data migration is one of IT's highest-risk activities. 83% of data migration projects exceed their budget or timeline. The difference between success and failure is planning.
Planning Essentials
- Data audit: Understand what you have before you move it
- Quality assessment: Clean data before migration, not after
- Mapping: Define how source data maps to target structures
- Validation rules: Automated checks that verify migration accuracy
Migration Approaches
Big bang: Everything migrates at once. Faster but higher risk. Phased: Migrate in stages. Slower but allows course correction. Parallel run: Both systems operate simultaneously. Most expensive but lowest risk.
Critical Success Factors
Test extensively with real data volumes. Plan rollback procedures. Communicate downtime windows clearly. Have data owners validate results before decommissioning source systems.
Plan your migration right. Contact info@petatec.uk.
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