A workflow scheduler is provided in which highly correlated processes are scheduled so as to be continuously executed. The workflow scheduler analyzes an input print order, divides the print order into a plurality of processes to carry out the print order, arranges a schedule of the plurality of processes divided, groups a set of processes together from the plurality of processes into which the print order is divided according to grouping attributes of the plurality of processes, the set of processes being associated with each other by the grouping attributes, outputs the plurality of processes whose schedule is arranged by the schedule arranging unit in a recognizable manner, and arranges the schedule of the plurality of processes such that the set of processes is capable of being executed continuously.