14. The apparatus of claim 13 further comprising means for generating code in a target language from either the second graphical model or the altered IR.
13. An apparatus for validating a graphical model, the apparatus comprising: means for receiving a first graphical model representing a dynamic system and a configuration set, where: the configuration set includes a user-specified change to be performed on the first graphical model, the user-specified change changes a behavior of the first graphical model, the user-specified change includes: adding or removing one or more graphical elements to/from the first graphical model; or modifying one or more parameters associated with the first graphical model, and the first graphical model includes multiple source languages; means for converting the first graphical model into a single intermediate representation (IR), the single IR suitable for conversion to a target language; means for altering the IR of the first graphical model based on the user-specified change included in the configuration set, where the altered IR represents the dynamic system with the user-specified change; means for converting the altered IR into a second graphical model; and means for displaying the second graphical model to a user for validation.