US Patent 7913290 Device management apparatus, device, and device management method

A device management apparatus includes a device configuration information holding unit, a subscriber information holding unit, a security policy holding unit, a module state holding unit, and a device diagnosis unit. The security policy holding unit holds a security policy set based on the configuration based on the configuration information or the subscriber information. The device diagnosis unit examines the security policy and the module state information to make a diagnosis of a configuration of the device.