A data retrieval method is provided that includes providing a device that comprises a unit, storing usage data of the device in a database based on information stored in a CRUM used in the unit, providing access to the database to a user, and providing the usage data to the user. A data retrieval system is also provided that includes a controller, a device that comprises a unit, the device and the unit being controlled by the controller, a database controlled via the controller, wherein the database is accessible by a user, usage data of the unit being stored in the database via the controller based on information stored in a CRUM associated with the unit, and the usage data being provided to the user via the controller.