An object-oriented operator's interface for real-time process control expert systems

Abstract

Critical to the success of real-world process control expert systems is acceptance by the operator. An operator's interface that is native to the existing control system and that utilizes existing protocol has a clear edge over an interface presented on a foreign device. This paper describes the design, functionality, and related ergonometric issues of an object-oriented operator's interface deployed for real-time process control expert systems. Native to the existing control system, this interface-and the expert system behind it—represents an extension of the existing control system rather than a departure from it. Because this system utilizes existing process graphics, touch-screen interaction, and other “standard” control system features, it results in u less threatening, more acceptable introduction of expert system technology into the control room.