A data processing apparatus for generating running performance information indicative of a running state of at least one device, has a data storage process section that obtains device state information indicative of a result of detection of a state of the at least one device, and obtains operational activity performer information indicative of a result of detection of whether an operational activity performer that performs an operational activity to the at least one device or an operational activity with the at least one device is present at a predetermined position for the operational activity performer to do the operational activity on the at least one device or the operational activity with the at least one device, and causes the device state information and the operational activity performer information to be stored in a result-of-detection storage.