Specifying Graph-like Diagrams with DiaGen

This extended abstract demonstrates that creating editors and environments for visual languages becomes considerably easier when restricting the class of visual languages. The presented approach considers graph-like languages whose diagrams consist of nodes and edges with di®erent types. The speci¯cation method allows to describe such graphs in terms of their node and edge types and makes use of constraints in order to express syntactic properties. The DiaGen system is used to generate running editors from such speci¯cations.