1. A computer-implemented method for providing a graphical state diagram model based on a graphical user interface, the method comprising: providing a graphical user interface comprising one or more graphical elements; generating, from the graphical user interface, using a processor, a graphical state diagram model that is based on the graphical user interface, the graphical state diagram model providing a graphical state machine representation of the graphical user interface comprising one or more states representing a state of the one or more graphical elements in the graphical user interface; and providing a tool for modifying the graphical user interface, wherein the graphical state diagram model is updated to reflect a modification of the graphical user interface, the graphical state diagram model being updated dynamically as the graphical user interface is changed without regenerating the graphical state diagram model.