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This paper reports the preliminary results of a project that is investigating the theoretic foundations of decision support systems (DSS). The project is principally motivated by a concern for the direction and relevance of DSS research. The main areas of research focus are the decision and judgement theoretic base of the discipline, the research strategies used in published articles, and the professional relevance of DSS research. The project will analyse DSS articles published in 17 selected journals from 1990 to 2002. This preliminary report is based on the analysis of 358 papers. The findings indicate that DSS research is dominated by positivist research (in particular laboratory experiments and surveys), is heavily influenced by the work of Herbert Simon, and has a healthy balance of theory and application, but, it is poorly grounded in judgement and decision-making research, and falls down in the identification of the nature of clients and users.

Group Support Systems (GSS) have been the subject of many investigations and meta-analyses over the past decade. This study presents summarizes and analyzes the results of 100 experiments that used communication mode as an independent variable. The results suggest that use of a GSS improves decision quality, depth of analysis, equality of participation, and satisfaction over manual methods. Additionally, more detailed analysis suggests that task type, GSS type and the interaction of both have a moderating effect on adaptation and outcome factors. Group Support Systems (GSS) have been studied for over a quarter century via case studies, surveys, and experiments. More than 90 % of the experimental studies

The advent of business-to-business (B2B) e-commerce market has created needs and opportunities for firms to negotiate deals online. Most negotiation support systems (NSS) in past research are text-based and the related findings could not be generalized to negotiating situations utilizing advanced electronic communication technology. This paper investigates the impact of NSS and conflict level on negotiation outcomes where participants communicated through a videoconferencing channel. Findings suggested that dyads with videoconferencing NSS support achieved higher joint outcome, but spent more time in reaching agreements - in low but not high conflict negotiation situation. Conclusion and implications were drawn.

this paper, we discuss the nature of outcomes in empirical GSS research according to each of the above methodologies. Evidently actual decisions and resolutions can be outputs, but we choose to focus more on measurable performance outcomes, e.g. decision quality, the quantity of ideas generated, consensus; and satisfaction outcomes, e.g., group process and outcome satisfaction.

Decision support systems can play a role in improving the ability of decision makers to act as utility maximizers in crisis situations. This paper demonstrates the ability of one such decision support system, GENIE, to help decision makers maximize their objectives in a crisis negotiation. GENIE is described in detail, followed by the presentation of preliminary experimental results evaluating its effectiveness in crisis management and abatement. The experimental results show that GENIE users, as compared to non-users, are more likely to identify utility maximization as their primary objective and to achieve high utility scores. Experiments in which GENIE users participate are also more likely to end in agreement among thc parties, rather than in an outcome in which one of the parties opts out of the negotiation.