Extensibility evaluation apparatus, extensibility evaluation method, and extensibility evaluation program

摘要

A scalability evaluation device comprises planning means for receiving a request model, which is change prediction information of a request to a system and changing a scaling point, which is a configuration of the system which satisfies a condition for each of periods of the request model based on a predetermined rule, scaling cost calculation means for calculating a scaling cost, which is a cost required for changing the scaling point and outputting the scaling cost, and performance calculation means for calculating a performance value, which is a value representing a performance of the system when the scaling point is changed by the planning means and outputting the performance value.