Approval system

An approval system comprising an information processing apparatus and a plurality of biometric authentication devices, wherein

• the information processing apparatus includes:
• a first storage unit storing a countermeasure processing-and-authority associating table;
• a first interface for connecting to a network and for communicating with a sensor device and the biometric authentication device via the network;
• and
• a first processor configured to:
• receive a sensor signal from the sensor device through the first interface;
• when a state satisfying a predetermined condition related to data indicated by the sensor signal occurs, determine countermeasure processing corresponding to the state, determine an authority to perform the countermeasure processing with reference to the countermeasure processing-and-authority associating table, determine a biometric authentication device to perform approval processing from among the plurality of biometric authentication devices based on the determined authority, and transmit an approval request signal requesting approval of the countermeasure processing corresponding to the state to the determined biometric authentication device through the first interface;
• and
• perform the countermeasure processing when an approval response signal indicating that the approval of the countermeasure processing is successful is received from the determined biometric authentication device through the first interface, and
• each of the plurality of biometric authentication devices includes:
• a second interface for connecting to the network and for communicating with the information processing apparatus via the network;
• a second storage unit configured to store biometric information in advance;
• a biometric sensor configured to acquire biometric information;
• and
• a second processor configured to:
• cause the biometric sensor to acquire the biometric information when the approval request signal is received;
• and
• transmit the approval response signal to the information processing apparatus through the second interface when the biometric information acquired by the biometric sensor and the biometric information stored in the second storage unit are identified with each other.