Using extended positional grammars to develop visual modeling languages
SEKE '02 Proceedings of the 14th international conference on Software engineering and knowledge engineering
Constructing Meta-CASE Workbenches by Exploiting Visual Language Generators
IEEE Transactions on Software Engineering
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In the visual languages community there has been a growing consensus that visual languages will be most successful in the case of special purpose languages. Furthermore, their success will largely depend on the programming environment which is provided for them. Programming environment generators, generate programming environments for formally specified languages. We discuss specification of visual languages and the generation of visual environments. We focus on a picture definition language, VODL, which serves as the basis for defining the syntax of visual languages. We present the language definition and an example showing how VODL is used in defining language syntax and thereafter generating visual editors. Finally, we discuss how to extend this approach in creating a visual specification formalism and a supporting environment for specifying the syntax and semantics of visual languages.