Part I Groups and organizations - a context for group decision support: complexity and strategic decision-making, John Churchill; handling organizational complexity in group decision support, John Friend; the complexity of decision management practice, Steve Cropper; using the competing values approach to explore "ways of working", Colin Eden and John Rohrbaugh; the unfolding nature of group decision support - two dimensions of skill, Colin Eden. Part II Considerations in providing decision-making support to groups: observations of complex decision-making situations utilising metagame analysis, Ted Mitchell et al; the analysis and resolution of decision situations with interacting participants, Jim Radford; problem-solving in small groups - team members as agents of change, Bill Mayon-White. Part III Mixing methods: variety, formality and style - choosing amongst decision-support methods, Steve Cropper; mixing methods - combining conflict analysis, "SODA" and "Strategic Choice", Peter Bennett; systems of perceptions - developments in hypermapping, Jim Bryant; gaming, competitor analysis and strategic management, Chris Huxham and Colin Eden. Part IV Computer supported group decision-making: the role of computers in group decision support, Fran Ackermann; decision analysis for group decision support, Lawrence D.Phillipps. Part V The environment for supporting groups: managing the environment as a means to managing complexity, Colin Eden; on trivialities in process, Chris Huxham; decision spaces - a scenario about designing appropriate rooms for "activity-based" decision management, Allen Hickling. Part VI Key themes and future directions: of tools, models, methods and methodology, Rolfe Tomlinson.