| 摘要 |
A system for investigating effects and then taking consequential actions on causes of those effects, comprises means for identifying a set of potential causes, effects and known relationships between the causes and effects. A first value is derived, for each cause, of probable benefit of acting on that cause and for identifying the cause for which that value is greatest. A second value is deriver, for each effect, of probable benefit of an investigation into that effect and for identifying the effect for which that second value is greatest. The greatest first value is then compared with the greatest second value thereby determining when to switch from investigating to acting upon causes. Such a system enables effective diagnosis when a symptom is known to be only sometimes associated with a fault by calculating the extent to which each symptom examination would improve the situation, assuming no further symptom examinations are used. |
