| 摘要 |
PURPOSE:To prevent information to be kept secret and protected from leaking by displaying another picture which causes no trouble on a screen when an operator who utilizes an on-line terminal leaves the on-line terminal during on-line screen processing. CONSTITUTION:If the user leaves the on-line terminal 1 during the on-line screen processing and does not return within a set time while an on-line user monitor means 3 for monitoring the user who operates the on-line terminal 1 is in operation, the on-line user monitoring means 3 judges that the user does not operate the on-line terminal 1 and informs a host computer 2 of the absence of the user. The host computer 2 once recognizing the report sends an instruction requesting a change of the on-line screen on which the user performs processing to an on-line screen changing means 4. The on-line screen changing means 4 changes the screen on which the user performs the processing into the screen from which it can be judged that the on-line system is in use. |
