A visual language for XML

XML is becoming one of the most influential standards concerning data exchange and Web presentations. The article presents a visual language for querying and transforming XML data. The language is based on a visual document metaphor and the notion of document patterns. It combines an intuitive, dynamic form based interface for defining queries and transformation rules with powerful pattern matching capabilities and offers thus a highly expressive yet easy to use visual language. Providing visual language support for XML not only helps end users, it is also a big opportunity for the VL community to receive greater attention.

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