A specialized server holding a hierarchical database works with a Graphical User Interface to transform a hierarchical schema by utilizing an XMI file which is used with a modeling tool to develop a relational schema for display and use in a relational database in the Graphical User Interface. The connection member has a plate-like or sheet-like shape and has terminals and a ground pattern. rolled, in a production system where treatment devices move the workpiece longitudinally in a horizontal travel direction and at a generally constant travel speed along a horizontal longitudinal path and a control computer is connected to the treatment devices.