Vehicles and drivers

A fleet program needs to know who charged what, where, and on whose budget. Spirii’s data model is built around that question.

The chain

Object	Holds
Token	RFID, app, or roaming credential used to start a session.
Driver	The person — name, email, employee ID.
Vehicle	The car or van — VIN, license plate, model.
Cost center	The internal billing target — department, project, customer.

Tokens can be reassigned between drivers, but historical sessions are always attributed to the driver who held the token at the time.