Mass Online Deliberation in Participatory Policy-Making—Part I

This two-part chapter proposes a model and some design choices to build a Mass Online Deliberation (MOD) system, aimed at supporting orderly, fair, inclusive and purposeful participation of a large number of people. According to this model, a deliberation on a given issue, in a given community and at a given time (a “deliberandum”), progresses through a number of phases, roughly corresponding to ideation (moving and discussing proposals, with a proposals’ clustering algorithm operating in the background), consolidation (i.e. editing of one proposal per cluster) and reconciliation (of some among the consolidated proposals from different clusters). Depending on a given context of use, a final selection of one among the remaining irreconcilable proposals may be done by vote either among the deliberants only, or within the whole community (a referendum), or else, within a randomly selected panel of community members. The specific mechanisms defined in our model are as follows: mutual moderation and two- or three-parametric appraisal of each other’s contributions (hence without employing any staff of external moderators or facilitators); semantic clustering of a large number of proposals, performed in the background by the system and mostly based on the distribution of participants’ appraisals among contributions; and also some specific role of experts in the field, whose participation is limited to providing facts and replying to factual questions, not to actively influence participants’ opinions. Multilingual mass deliberation is discussed at the end of the Part II of the chapter.