Title:
Cab Firm

Description:
Model a BPMN collaboration showing a cab booking process among a cab firm, taxi drivers and customers. The collaboration starts any time a new
customer contacts the cab firm to book a taxi in order to reach a destination. Once the cab firm receives the message queries the database until
it finds an available taxi driver. Then, the firm communicates the ride to the selected drive that can accept or not. Depending on its decision,
the driver update its availability and reach the customer position. Once he/she has been picked up, the customer provides the destination to the
driver, and then pay the ride. Finally, the driver becomes available again.

Versions:
CabFirm.bpmn - Correct version