We present a visual language for querying and transforming XML data. The language is based on a visual document metaphor and the notion of document patterns and rules. It combines a dynamic form-based interface for defining queries and transformation rules with powerful pattern matching capabilities and offers thus a highly expressive visual language. The design of the visual language is specifically targeted at end users.
Xing REF is a visual language to query XML documents.
Xing: A Visual XML Query Language
Journal of Visual Languages and Computing
Computer Science