The migration concept creates the basis for the transfer of the old system to the new system and the decommissioning of the legacy system.

The focus of the system migration is on the migration of application data, i.e. data migration. 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, economic efficiency, 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. step-by-step deployment requires step-by-step migration).

1. Solution requirements
2. Deployment concept
3. ISDP concept

1. Analyze the system and data.
2. Design a migration concept based on the deployment concept.
3. Check the impact on the deployment concept.
4. Design the decommissioning of the legacy system and clarify data archiving if necessary.
5. Review feasibility.
6. Coordinate the migration concept with the stakeholders.

1. Migration concept