A Theory of Task/Technology Fit and Group Support Systems Effectiveness^o f task complexity and their relationship to relevant dimensions of GSS technology. Propositions to guide further research are developed from the theory. AbstractThe characteristics of a group's task have been shown to account for more than half the variation in group interaction. In the context of group support systems (GSS), the importance of task has been underscored by the recommendation that achieving a fit between task and technology should be a principle for effective GSS use. Although the body of group support systems research has grown in recent years, and experience with different tasks and technologies now exists, no generally accepted theory of task/technology fit has emerged. This paper develops a theory of task/technology fit in GSS environments based on attributes 'Robert Zmud was the accepting senior editor for this paper.

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Group support systems (GSS) provide both promise and puzzlement. Experimental studies of different systems over the years have resulted in conflicting findings --- sometimes enhancing group performance, at other times having no effect, and occasionally even resulting in worse performance for GSS-supported groups than for traditional groups. Researchers have speculated that the mixed results are due to a poor fit of the GSS with the group's task. A recent model of task-technology fit has provided a theoretical perspective from which to test this issue. In this paper, a theory of task-technology fit is tested by applying it to a selected set of published GSS experiments. Key constructs in the theory are operationalized via coding instruments, and the application of the coding scheme provides support for the theory.