1. A method of configuring an information processing system, in an information processing system for realizing one or a plurality of applications, comprising: a step of modeling all of the applications for each certain process level and inputting the models; a step of inputting parameters representing invariability for the inputted models; a step of using the models of the applications and the parameters representing invariability as inputted information and comparing the parameters representing invariability to a boundary condition; and a step of outputting information that one of the application models is allocated to programmable logic and another of the application models is allocated to an exclusive-use hardware based on a result of the comparison.