OPTIMAL DESIGN ASSISTANCE DEVICE, METHOD, AND RECORDING MEDIUM

An optimal design assistance device which assists in design of system configuration with minimum price of a computer system, even it is the computer system which performs complicated processing, so that it can be accomplished in a short time and with high efficiency is provided.The optimal design assistance device which assists in design of controllable design parameters of the computer system to which a plurality of Service Level Objects (SLOs) defining non-functional requirements are specified includes: a relaxation solution derivation unit which derives a relaxation solution evaluation value that is the minimum value of the price of the system configuration of the computer system which achieves a part of the SLOs among a plurality of the SLOs; and a search unit which searches for a parameter set of the design parameter by which all the plurality of SLOs are achieved and the price of the system configuration is made lowest by using the relaxation solution evaluation value unit.