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<p><b>Abstract</b>—The implementation of visual programming languages (VPLs) and their supporting environments is time consuming and tedious. To ease the task, researchers have developed some high level tools to reduce the development effort. None of these tools, however, can be easily used to create a complete visual language in a seamless way like the lex/yacc tools for textual language constructions. This paper presents the design, construction, and application of a generic visual language generation environment, called VisPro. The VisPro design model improves the conventional Model-View-Controller framework in that its functional modules are decoupled to allow independent development and integration. The VisPro environment consists of a set of visual programming tools. Using VisPro, the process of VPL construction can be divided into two steps: lexicon definition and grammar specification. The former step defines visual objects and a visual editor, and the latter step provides language grammars with graph rewriting rules. The compiler for the VPL is automatically created according to the grammar specification. A target VPL is generated as a programming environment which contains the compiler and the visual editor. The paper demonstrates how VisPro is used by building a simple visual language and a more complex visual modeling language for distributed programming.</p>
Visual programming, visual languages, language construction, graph grammar.

D. Zhang, K. Zhang and J. Cao, "Design, Construction, and Application of a Generic Visual Language Generation Environment," in IEEE Transactions on Software Engineering, vol. 27, no. , pp. 289-307, 2001.
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