There are resource managers provided for various kinds of resources including hardware and software, and a system resource manager that manages the entire system including the resource managers. Configuration management of the system resource manager grasps the system configuration by XML-based definition information and detects a control method of each of the resources. Accepting an operation instruction to a resource, the system resource manager specifies a target resource to be controlled under configuration management and sends an event to a resource manager that manages the target resource by event control. The resource manager that receives the event specifies the target resource to be controlled under configuration management and sends a control instruction to the target resource by event control to operate the target resource.