OPERATING SYSTEM IN ELECTRONIC EXCHANGE

摘要

The method improves the system security so that the scope of user command is limited and the permitted command is inspected as well. The method comprises; the first step (301,307) of controlling the system login process; the second step(401,405) of controlling the operator command input if the command is input from the operator; the third step(501,502) of controlling the system logout process if the logout command is come in.