1. A configuration value management apparatus that collectively manages configuration values of multiple image forming apparatuses, the configuration value management apparatus comprising: a generating unit that generates virtual configuration values in accordance with the model of a specified image forming apparatus using a model-based configuration value schema that defines a configuration value schema for each model of the multiple image forming apparatuses and tenant configuration values in which a user has set configuration values for the multiple image forming apparatuses; an applying unit that, in the case where a new settings item is present in the virtual configuration values generated by the generating unit, applies the new settings item to settings items in the tenant configuration values; and a managing unit that holds and manages the virtual configuration values generated by the generating unit.