Group decision and negotiation support - A methodological survey

The paper surveys recent developments in Group Decision Support Systems. We first consider a basic hierarchical model widely found in the literature, which distinguishes between individual and group processes. Using this model, we identify different classes of support for both levels and discuss the corresponding systems presented in the literature. We then consider non-hierarchical approaches, mainly those based on a joint problem evaluation by the group and explicit feedbacks between group and individual levels. From the issues raised in this survey, we then identify some topics for further research.