Design a migration concept
The migration concept forms the basis for the transfer of the old system to the new system and the decommissioning of the legacy system.
The focus of the migration of IT systems is on the migration of data. Migrations can be technical (automatic) or organizational (manual).
The migration concept takes into account the quantities, frequencies and quality of the data in the legacy system and its integration into the target system. Possible migration scenarios are analyzed and evaluated so that the appropriate migration procedures can be determined.
Migration considerations include aspects of the feasibility, cost-effectiveness, quality and timing of a migration.
With data migration, the issues of legacy data archiving and system decommissioning must also be addressed. Data security and data protection aspects are taken into account.
The deployment strategy in the deployment concept determines the migration strategy (e.g. phased deployment requires a step-by-step migration).
Analyze the IT system and data
Design a migration concept based on the deployment concept
Check the impact on the deployment concept
Design the decommissioning of the legacy system and clarify data archiving if necessary
Coordinate the migration concept with the stakeholders