KSX includes an easy to use rule editor that provides real-time parsing and syntax validation. It uses an intuitive, intention revealing, English based rule syntax. Syntax help lists display functions and keywords as well as context specific objects such as nodes and attributes. These syntax suggestions are updated in real time as the user types limiting the options and making rule creation as simple as possible. Process Engineers, Metallurgists, Chemists can write rules to clearly control the process. No programming expertise is required, and it is not necessary to learn a new programming language. This allows for the end user to maintain, and develop new applications in the plant with virtually no obstacles.