Abstract: An isolation list containing information on a master/slave relation of isolation devices is stored in a history file. A range setting unit sets an isolation range according to a specifying operation with respect to the system diagram of equipment displayed on the screen. A master device registration unit extracts an isolation device present in the set range and registers it as a master device in the isolation list during editing. A slave device search unit successively selects a master device from the isolation list during editing, searches an isolation device which is in a relation of slave device with respect to the selected master device from the history file, and displays a slave device list. A slave device registration unit inserts and places a slave device selected based on the selecting operation of the slave device list after the corresponding master device in the isolation list during editing, thereby completing the list.

Abstract: The management apparatus of web servers of the present invention monitors occurrence of link breakage set by requesting to other sites. For this purpose, log information resulting from an access from an external web site to HTTP contents is acquired from the web server. Then, refer information is generated by extracting the linking relationship with the external web site to the web page from the thus acquired log information. Furthermore, upon update of the HTTP contents, the possibility of occurrence of link breakage caused by page deletion is recognized with reference to refer information, and warning is issued.

Abstract: An isolation list containing information on a master/slave relation of isolation devices is stored in a history file. A range setting unit sets an isolation range according to a specifying operation with respect to the system diagram of equipment displayed on the screen. A master device registration unit extracts an isolation device present in the set range and registers it as a master device in the isolation list during editing. A slave device search unit successively selects a master device from the isolation list during editing, searches an isolation device which is in a relation of slave device with respect to the-selected master device from the history file, and displays a slave device list. A slave device registration unit inserts and places a slave device selected based on the selecting operation of the slave device list after the corresponding master device in the isolation list during editing, thereby completing the list.

Abstract: The management apparatus of web servers of the present invention monitors occurrence of link breakage set by requesting to other sites. For this purpose, log information resulting from an access from an external web site to HTTP contents is acquired from the web server. Then, refer information is generated by extracting the linking relationship with the external web site to the web page from the thus acquired log information. Furthermore, upon update of the HTTP contents, the possibility of occurrence of link breakage caused by page deletion is recognized with reference to refer information, and warning is issued.

Abstract: A non-oxidizing heating method and apparatus in which a non-oxidizing gas of high temperature is continuously generated and supplied into a furnace by changing over a plurality of heat storage type heaters alternately while repeating an operation in which one heater stores heat and the other heater heats and blows the non-oxidizing gas. Since it is possible to heat by producing a completely non-oxidizing atmosphere within the furnace, the method and apparatus can be effectively utilized in furnaces which require heating in a non-oxidizing atmosphere, for example, various furnaces such as a ladle, tundish, etc. used in a field of steel manufacturing and continuous casting, and various furnaces used in a field of heating and heat treatment of metallic materials, and thus, it is effective to achieve reduction of operational cost, improvement of product quality, and improvement of product yield.