An initial prototype of a new dialogue system is now available in the Arvina tool. Arvina is built on top of Google Wave and implements the concept of Mixed Initiative Argumentation, whereby a mix of human players and agents enacting AIF resources can take part in a debate and have equal levels of participation: offering claims, asking questions, responding, challenging and so on.

You can see Arvina in action by watching the video below:

Arvina is a proof of concept demonstrator created as a part of the Dialectical Argumentation Machines project.