Abstract: States of security and risk are accurately recognized and an appropriate measure can be taken. Therefore, in a security monitoring device connected to a security device for securing security of an asset and monitoring the security, information from the security device is monitored and collected in real time on the basis of a set monitoring condition. On the basis of the monitored and collected information, a security risk change is analyzed and estimated, and the analyzed and estimated results are displayed, etc., and outputted.

Abstract: States of security and risk are accurately recognized and an appropriate measure can be taken. Therefore, in a security monitoring device connected to a security device for securing security of an asset and monitoring the security, information from the security device is monitored and collected in real time on the basis of a set monitoring condition. On the basis of the monitored and collected information, a security risk change is analyzed and estimated, and the analyzed and estimated results are displayed, etc., and outputted.

Abstract: A communication network system comprising a communication line network, a plurality of terminals connected to the communication line network, and a fuzzy control unit for allocating a right to access the communication network according to a fuzzy deduction process taking into account an operating condition of the system. This communication network system may consist of a local area network involving a polling process or a token passing process, a computer terminals systems, or a telephone exchange system. By using a fuzzy control process, an efficient utilization of available resources is made possible by taking into account operating conditions of the network as a whole, or each of the terminals.