UPGRADE: Building Interactive Tools for Visual Languages
Boris Böhlen, Dirk Jäger, Ansgar Schleicher, Bernhard Westfechtel · 2002
Construction of interactive tools for visual languages is a challenging task. The UPGRADE framework leverages tool builders by integrating application logic and GUI components. It is based on attributed graphs as its internal data model. At the user interface (external representation), graphs can be rendered in multiple ways, including graphics, trees, text and tables. The framework is open, e.g., third-party viewer components may be plugged into the framework.