Developments in graph-based modeling for decision support

The user interface has long been recognized as one of the key components of a decision support system (DSS). Much recent research has contributed theories, tools and techniques for user interface design and implementation for DSS. Graphs are widely used in DSS to represent complicated problems. Graph-grammars provide a theoretically grounded, practical tool for building user interfaces and some degree of functionality for problem domains where the problem can be represented as a graph. The paper discusses recent developments for one such line of research-graph-based modeling using graph-grammars.