Distributed control systems, process logical controllers with Supervisary and Data Acquisition Systems are used to control the production process. They uses graphic user interfaces to visualise piping and instrumentation of the plant. They are supported by other systems like simulators, quality management systems and expert systems. These systems give additional information, which help supervising the production process and configuring the automation systems. But it is very difficult to integrate this information into the user interfaces of the automation systems. To overpower this restraints a new interface is needed. For building up this interface the implementation of a common functionbase is required. On one hand this must conform with the information duty of the user and on the other hand it must adduce all system tasks. Modern information techniques like object modeling are used to specify the postulated functionbase. Described in this way, a functionbase must be implemented in common computer systems.