A method for performance requirement estimation includes: acquiring system performance requirement information indicating requirements of a performance value with respect to processes pertaining to each of processing classifications; acquiring resource information indicating the amount of resources with respect to a plurality of second machines included in a new system to be configured to perform the processes pertaining to each of the processing classifications; determining whether or not the new system satisfies requirements of a performance value with respect to a processes pertaining to each of the processing classifications in accordance with the system performance requirement information, the resource information, and a model configured to output a performance value with respect to the processes pertaining to each of the processing classifications in accordance with an input indicating the amount of resources to be distributed for performing the processes; and outputting a determination result obtained by the determining.