In one of many possible implementations, an exemplary system includes a plurality of data subsystems configured to store local data associated with an external party, the data subsystems configured to be maintained by an internal party. The system further includes a data integration subsystem configured to store global data and a defined mapping of the global data to the local data, the global data including a global data record mapped to a local data record having a first data schema type, recognize a migration event in the local data, the migration event including migration of the first schema type local data record to a second schema type local data record, and associate a smart mapping record with the global data record, the smart mapping record configured to selectively map the global data record to one of the first schema type local data record and the second schema type local data record.