Abstract: A serviceability strategy is established that permits the definition of a plurality of service models for components, functions, subsystems and field replaceable units in a complex machine system, as well as the implementation of the models for rendering service as serviceable events and faults occur, and for improvement of the models over time. The models may be dedicated in such a manner as to be selectable for addressing detectable and isolatable root causes of serviceable events as they occur, and the proper models are selected as such events occur based upon predefined indicators. As service events arise over time and are addressed by recommendations made by each model, data is gathered and serves as the basis for evolving the models so as to more appropriately address root causes of serviceable events and faults, and to improve the selection of the models most apply suited to addressing serviceable events and faults.