An interface description language for graph editors

A graph editor can be used as a graphical user interface to many applications. A language is defined which describes the interface between an application and a graph editor. The language describes attributes of the graph such as the various node and edge types and how they should be displayed. It also specifies the manner in which the graph is to be displayed (layout algorithm, layout constraints) and the set of editing commands. The use of this language will simplify the customization of graph editors. For various types of graph editors there would be corresponding descriptions. This interface description language is being incorporated into the EDGE graph editor