The present invention provides technologies for narrowing down fingerprints images, which will be used for identity determination, without extracting auxiliary information such as a fingerprint pattern, thereby shortening the time required for fingerprint verification. A list of servers and a plurality of services to monitor in the computer network is generated at the monitoring server. At least a portion of the two pieces are arranged into an alternating pattern and joined together to define a joint or junction. Stress may be transmitted by the interface to the strain sensors. The main circuit section is interposed between the control circuit substrate section and the power wiring section.