The policy modeling tool of the IMPACT argumentation toolbox

In this paper we present an overview of the policy modeling tool of the argumentation toolbox being developed in the European IMPACT project. The tool is a web version of the Carneades argumentation system extended with support for comparing policy alternatives in deliberative democracy application scenarios. The tool can be also be used as a legal expert system shell, for example in applications for helping citizens to assess their rights to social benefits, in much the same way as some commercial rule-based systems, but goes further towards realizing the vision of isomorphic modeling by being based on the state-of-the-art in Artificial Intelligence and Law and Computational Models of Argument fields.