Effectiveness of decision support systems

Abstract

Attempts at supporting decision-making in ill-structured problem situations have focused on the development of decision support systems (DSS). In the present work the authors investigate whether these systems in fact improve decision-making. They report the results of an experiment investigating the impact of a DSS and a decision strategy on the quality of decision-making. They study the effectiveness of a DSS and a decision strategy. The positive influence of a decision strategy on the quality of decision-making is supported by the data. However, the impact of a DSS on the quality of decision-making received little or no support from the results of the experiments. The experiment suggests that teams using a DSS do not perform better than those not using it. The experiment shows that a DSS, even though its users have a positive opinion about it, does not cause them to make significantly better decisions. Decision quality does improve significantly, though, when decision-makers are guided in the way in which they structure their problem situation.>

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