On the Relationship with Toulmin Method to Logic-Based Argumentation

Abstract

Toulmin presents a model of argumentation, in which claims can be justified in response to challenges. The model replaces the traditional concepts of ‘claim’ and ‘premise’ with new concepts of ‘claim’, ‘data’, ‘warrant’, ‘qualifier’, ‘rebuttal’, and ‘backing’. Due to the significance of Toulmin’s argumentation, this work investigates its relationship to our recently introduced logic-based argumentation [14]. We show that Toulmin’s idea does not only give a visual interpretation of the logic-based argumentation, but also yields a human-understandable form. Finally, the paper wraps up the investigation’s result and formalizes a novel 2-Tier argumentation framework, that combines the advantages of both Toulmin’s model and the logic-based argumentation system.