Conceptual graphs based modeling and querying of XML data

Conceptual Graphs (CGs) are a knowledge representation language based on the existential graphs of Ch. S. Peirce and the semantic networks of Artificial Intelligence. CGs are also a modeling and design language, which is human readable and computer tractable. This makes CGs suitable for a large variety of applications. The novelty of this paper, is a new approach to XML data modeling based on Conceptual Graphs and a query designer based also on CGs. We underline that the expressive power of Conceptual Graphs helps us to understand, analyze and present the structure of semi-structured data in a form which is also accessible for non-experts.