Phase 4: Data Migration & Implementation

Phase 4 represents the completion and launch of the application. Data from the existing system is finally and fully migrated into the new system and, after verifying its accuracy, a complete switchover is made.

• Obtain data sample of complete database for analysis
  • Create data transformation scripts to migrate data from old format to temporary structure
  • Create data migration scripts to migrate data from temporary structure to new system
  • Test migration of sample data, review for accuracy
• Schedule transition date, off-peak hour preference
  • Lock old system from receiving additional data input or changes
  • Send complete data through transformation process
    • Review data in temporary structure for accuracy of transformation
  • Send data to new system through migration process
    • Review data in new system for accuracy of migration
  • Bring new system online, deactivate old system
• Client interaction: review system for completeness of data migration

Read on to Phase 5: Support & Maintenance