Patent ID: 7734774

Claim:
An in-operation system check processing device, comprising: a design data storage unit for storing design data of devices to constitute a network system and a connection and a containment relationship to be realized between the devices in the network system; a check list storage unit for storing check conditions that indicate an actually or potentially problematic device and a connection relationship of devices and a containment relationships of devices and caution information thereof; an automatic exploration unit for determining an exploration range of addresses of devices in the network system which actually are in operation based on the design data, identifying devices that exist in the exploration range, identifying a connection relationship or a containment relationship among the identified devices based on the design data, and outputting automatic exploration result data which includes the identified devices and the identified connection and identified containment relationships; an automatic exploration result data storage unit for storing the output automatic exploration result data; a system check unit for detecting, based on the automatic exploration result data and the check conditions, a device corresponding to the device or a combination of devices corresponding to one of the relationships in the check conditions; and a caution information output unit for outputting caution information related to the detected device and combination.