1. A supervisory process control and manufacturing information application development and execution system supporting the execution of application object scripts derived from multiple different scripting languages, the system comprising: a script editor interface facilitating specifying scripts for application 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 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 an engine for executing the execution-side script generated by the script translation component.