Patent attributes
A method of generating probability data for use in assessing performance of a system and a mission involving the system. The method includes receiving (302) a combined model describing a system diagnosis model describing symptoms, failures and link strengths (conditionals) of components/subsystems of the system, and a mission impact model, the mission impact model describing effects of the system on an ability to perform the mission. Observation data regarding a state of the system is also received (306) The observation data is used (308) in combination with the combined model to generate probability data for use in assessing performance of the system and the mission.