An object of the present invention is to make it possible to analyze a shared risk that is the most important in view of the influence on a service. Provided is a shared risk influence evaluation system including: a shared risk management section for managing, for each shared risk factor on the system, information of a device and an application to be influenced by the shared risk factor; a device characteristic management section for managing information regarding characteristics of the device and the application; a service characteristic management section for, for each service provided by the system, managing information of an application needed for providing the service; and an influence calculation section for calculating an influence on the system for each shared risk factor based on the information of a device and an application to be influenced by the shared risk factor and the information of an application needed for providing the service.
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