Abstract: Methods and systems are provided for migrating data between systems without downtime. User requests may be handled adaptively during migration of data records from a first record system to a second record system, to maintain access to the data during the migration. The handling may include receiving a user request; determining at least one data record associated with the received user request; determining if a copy of the data record in the first record system is still active; and if the copy of the data record in the first record system is still active, forwarding the user request to the first record system. The user request may be forwarded to the second record system if the copy of the data record in the first record system is not active, and a retry mechanism may be used if the user request is not handled by the second record system.

Abstract: Methods and systems are provided for migrating data between systems without downtime. User requests may be handled adaptively during migration of data records from a first record system to a second record system, to maintain access to the data during the migration. The handling may include receiving a user request; determining at least one data record associated with the received user request; determining if a copy of the data record in the first record system is still active; and if the copy of the data record in the first record system is still active, forwarding the user request to the first record system. The user request may be forwarded to the second record system if the copy of the data record in the first record system is not active, and a retry mechanism may be used if the user request is not handled by the second record system.

Abstract: Methods and systems are provided for migrating data between systems without downtime. User requests may be handled adaptively during migration of data records from a first record system to a second record system, to maintain access to the data during the migration. The handling may include receiving a user request; determining at least one data record associated with the received user request; determining if a copy of the data record in the first record system is still active; and if the copy of the data record in the first record system is still active, forwarding the user request to the first record system. The user request may be forwarded to the second record system if the copy of the data record in the first record system is not active, and a retry mechanism may be used if the user request is not handled by the second record system.

Abstract: Methods and systems are provided for migrating data between systems without downtime. User requests may be handled adaptively during migration of data records from a first record system to a second record system, to maintain access to the data during the migration. The handling may include receiving a user request; determining at least one data record associated with the received user request; determining if a copy of the data record in the first record system is still active; and if the copy of the data record in the first record system is still active, forwarding the user request to the first record system. The user request may be forwarded to the second record system if the copy of the data record in the first record system is not active, and a retry mechanism may be used if the user request is not handled by the second record system.

Abstract: Methods and systems are provided for migrating data between systems without downtime. Data migration may be performed by selecting one or more data records for migration from a first record system to a second record system, and copying the one or more data records from the first record system to the second record system in manner where the data record remains accessible and available during the migration. The migrating may comprise verifying each copied data record, and when the data record is successfully verified, marking it as available on the second record system, and updating user interaction related functions to use a copy of the data record in the second record system when handling interactions by a user associated with the data record. User interactions may be handled adaptively during data migration by verifying the availability of data records in the first record system and the second record system.

Abstract: Methods and systems are provided for migrating data between systems without downtime. Data migration may be performed by selecting one or more data records for migration from a first record system to a second record system, and copying the one or more data records from the first record system to the second record system in manner where the data record remains accessible and available during the migration. The migrating may comprise verifying each copied data record, and when the data record is successfully verified, marking it as available on the second record system, and updating user interaction related functions to use a copy of the data record in the second record system when handling interactions by a user associated with the data record. User interactions may be handled adaptively during data migration by verifying the availability of data records in the first record system and the second record system.