From the website:
Welcome to the Parmenides e-participation forum. Parmenides is a system for deliberative democracy that allows the government to present policy proposals to the public (or a specific focus group) and lets the public submit their opinion on the policy and it’s justification.
Parmenides exploits two methods of argument representation; Argumentation schemes, to structure policy proposals; and Argumentation Frameworks, to diagramatically analyse the opinions submitted by users.
The Parmenides Project was developed at the University of Liverpool.