Authentication system managing method

A method for managing an authentication system including at least one processor and a storage, which authentication system compares input information inputted by a user to a plurality of templates stored in advance in the storage so as to authenticate the user without using personal identifier information, the method comprising the steps of:

• storing the plurality of template information in the storage;
• inputting the input information via an input device a plurality of times;
• under control of a processor, for each of the plural inputs, comparing the input information to the plurality of template information, and summing a number of matches between any of the plurality of template information and the input information for the plural inputs;
• acquiring log information indicating a measure of authentication results of the authentication system including the sum of the number of matches, and storing the log information in the storage;
• and
• under control of a processor, comparing the stored log information to accuracy evaluation information indicating the accuracy evaluation of the authentication system predetermined for the authentication system, and outputting an authentication alarm if the log information is deviated from the accuracy evaluation information by a predetermined value or above.