| 摘要 |
A session management method for providing contents data to internet terminals (1a, 1b, 1c, 1d) connectable to the Internet (4) through a server computer (6a) connected to the Internet (4), comprising a time series set producing step of producing a time series set (G[nT0, (n+1)T0, where n is an integer of 0 or more]) including time series divided every predetermined time width (T0), a session information registering step of registering and managing session identification information contained in request messages transmitted from the internet terminals (1a, 1b, 1c, 1d) into the time-series set (G[nT0, (n+1)T0]) corresponding to the session identification information if the validity term of the session identification information is the predetermined time width (T0) or less, and a deleting step of deleting the session identification information registered and managed in the set (G[(n-2)T0, (n-1)T0]) which becomes old when the current real time goes within the range from nT0 to (n+1)T0.
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