A method, system and computer product for performing a system analysis of a surveillance network containing a plurality of components. The method comprises the steps of representing selected ones of the plurality of components, providing a mapping between a plurality of observable events and a plurality of causing events occurring in components, wherein the observable events are at least associated with each of the at least one components, and determining at least one likely causing event based on at least one of the plurality of observable events by determining a measure between each of a plurality of values associated with the plurality of observable events and the plurality of causing events.