| 摘要 |
Performance information which is a possible generation cause of a fault is extracted accurately. A fault cause extraction apparatus 10 includes a storage unit 12 and a correlation-destruction-propagation detecting unit 25. Here, the storage unit 12 stores a correlation model including one or more correlation functions, each of which is generated based on a time series of performance information including a plurality of types of performance values in a system and transforms a performance value for one of the types being an input to a performance value for another one of the types being an output. The correlation-destruction-propagation detecting unit 25 calculates a degree of influence of a performance value for a base point that is one of the types upon the system, based on the number of base point propagation functions, the base point propagation functions being the correlation functions used to transform a performance value for the base point to a performance value for one of other the types being transformable from the base point directly or indirectly and not being input of the correlation function. |
