1. A supervisory process control and manufacturing information application development and execution system comprising computer-executable instructions stored on a non-transient computer-readable medium and a processor for executing the stored instructions, the system in particular supporting execution of scripts, the system comprising: a script editor interface facilitating specifying scripts for objects, and wherein the script editor interface supports multiple distinct user-side script languages; a script translation component including routines for rendering execution-side script of a single execution-side scripting language from source script rendered by the script editor and written according to any of a set of user-side script languages, the set of user-side script languages including at least: a first scripting language, and a second scripting language; and a scripting engine for executing the execution-side script of a single execution-side scripting language generated by the script translation component for the first scripting language and the second scripting language.