| 摘要 |
<p>A device for providing an E-book, which performs billing per session, comprises: an E-book request reception unit to receive a request for an E-book from a user terminal; an E-book providing unit to provide the user terminal with the requested E-book; a spending habit analysis unit to analyze a spending habit of the user terminal for the E-book; a session determination unit to determine whether to end or maintain a session as a unit of billing based on the result of the analysis; and a billing unit to bill the user terminal for the session when the session is ended.</p> |
