Human-computer interface for collaborative argumentation

The paper presents an educational system in collaborative argumentation. The system is designed to assist the learner while making statements, adducing reasons and inferring conclusions. Many computer supported collaborative argumentation systems (CSCA) have been presented. These systems differ in their goals, the underlying argumentation theories and the user interface. However, they always apply two representations in argumentation: simple graphs or trees, and second, simple logic programming. The drawback of these systems is that it is difficult to clearly present the argument moves performed by the users. In this case, users are unable to forward further arguments if they don't realize their positions within the argumentation process. The article proposes a system which uses nodes and edges to represent the relations between arguments. The automatic facilitator system facilitates the clear presentation of argumentation and a better interface environment for the user to articulate his/her arguments. Furthermore, the system provides intelligent coach advice to assist the user's reasoning.