1. A method for the modeling of a remote control unit usage with respect to an apparatus to determine a plurality of session models of a plurality of pre-defined models for describing a plurality of session data of said remote control unit usage and discovering a plurality of abstract models of said remote control unit usage based on said plurality of session data, wherein a plurality of events is associated with said plurality of session data and a plurality of meta-events is associated with said plurality of events, the said method comprising: determining a session-specific state machine of a plurality of session-specific state machines based on a session datum of said plurality of session data, performing session matching of said session-specific state machine with respect to said plurality of pre-defined models to determine a session model of a plurality of session models, performing session merging based on said plurality of session models to determine an abstract model of said plurality of abstract models, and performing model building based on said plurality of session-specific state machines to determine a plurality of built abstract models of said plurality of abstract models.