Method for managing attendance by user authentication at on-line education system

PURPOSE: A method for managing attendance is provided to reinforce a service for a client and supply data for evaluating a ranking by managing the attendance at on-line education system thoroughly. CONSTITUTION: A client registers one's ID and fingerprint in a fingerprint data DB of a fingerprint authentication server in advance for an authentication(S1). The client connects to an education server and performs a log-in process in a system through a fingerprint authentication(S2). An education is progressed(S3), and the education server requests a fingerprint authentication to the client at a predetermined time at random during the education(S4). The fingerprint authentication server or a fingerprint authentication module checks a fingerprint authentication of the client and detects non-fingerprint authentication period of the client. If non-fingerprint authentication period is detected, the period is stored in a member managing DB(S5). If the education is terminated(S6), non-fingerprint authentication periods are added and stored in a user DB(S7).