Methods, systems, and computer program products sustain a fleet of configuration-controlled assets. The method involves integrating a plurality of previously separate systems with reusable business transactions associated with managing a fleet of vehicles. The method also involves receiving operational data associated with a vehicle of the fleet, integrating the operational data per customer requirements, packaging and distributing the operational data to the plurality of systems, and installing and distributing the operational data to one or more applications of the plurality of systems utilizing reusable business transactions. The system utilizes a plurality of applications and a plurality of logical subsystems, which are connected to each other through gateways. The logical subsystems use a common format defined by a set of messages. However, the applications can use a plurality of different formats. The gateways, which are the connecting blocks, convert the data flow between the logical subsystems and the applications.