Circuit board manufacturing apparatus with protection function for supervising/adjusting mode and method of operating the apparatus

A method of controlling a computer system which includes a plurality of computer terminals connected via a communication network for controlling apparatus and wherein each of the computer terminals is operable in a job mode in which general users who have an authority to operate the computer terminals are allowed to perform the manipulation of the computer terminals and in a supervising/adjusting mode in which the general users are not authorized to manipulate the computer terminals, but a specified user is authorized to manipulate the computer terminals, the method comprising:

• enabling one terminal of the computer terminals to be manipulated by the specified user who has completed a login thereto with a certification,
• automatically logging off the specified user who has logged in, of the one terminal when a predetermined time period expires in the state that the one terminal is not manipulated, whereby the manipulation of the one terminal by the general users in the supervising/adjusting mode is prevented after the predetermined time period expires, and
• in succession to the automatic logoff, making reference to a user list to select users who have an authority for the last manipulation screen of the one terminal,
• determining default users who have an authority for re-login, as a result of the selection, and
• displaying the determined default users on a re-login receiving screen for selection.

A program for enabling a computer to execute the following functions with respect to a terminal which is able to be manipulated by a specified user who has completed a login with a certification, when a predetermined time period expires in the state that the terminal is not manipulated;

• (a) automatically logging off the specified user having logged in, of the terminal, whereby the manipulation of the terminal by general users in a supervising/adjusting mode is prevented after the predetermined time period expires,
• (b) in succession to the automatic logoff, making reference to a user registration list to select users who have an authority for the manipulation on a screen manipulated lastly,
• (c) determining users who have an authority to re-log to the terminal, from the selected users;
• and
• (d) displaying the determined users on a re-login receiving screen for selection.