PERFORMANCE INDEX VALUE CALCULATION SYSTEM AND PERFORMANCE INDEX VALUE CALCULATION METHOD

Provided are a performance index value calculation system and a performance index value calculation method which are capable of reducing time and labor for an operation of a communication system. A monitoring management module identifies, based on inventory data indicating a current status of a configuration of an element group included in a communication system and on calculation logic data indicating a condition to be satisfied by an element used for calculating a desired performance index value, a monitoring item for the element, and a calculation logic for calculating the desired performance index value, an element that satisfies the condition from the element group indicated by the inventory data. The monitoring management module calculates the desired performance index value by applying the calculation logic indicated by the calculation logic data to a performance index value of the monitoring item for the identified element.