| Coordination is the set of tasks by which groups of actors carrying out activities manage the work-related interdependencies for them to perform effectively. Coordination is a function of both the group's structural characteristics, and the nature of the task. While group size and cohesiveness intervene to make the coordination effort more or less effective, it is the nature of the task (i.e., its complexity) which has the most significant implications for the selection of coordination mode.;In rational decision-making, problem-familiarization, and solution-building are the generic stages. The handling of complexity is expected to exhibit a phased process. In the problem-familiarization stage, decision makers develop a shared interpretation of the problem at hand. In the solution-building stage, they reach agreement on the goals, and handle the levels of uncertainty.;This study's objective was to test the effectiveness of two coordination mechanisms, under different levels of task uncertainty. Standardization of processes was hypothesized to be more adequate under low levels of uncertainty. Standardization of outcomes was hypothesized to be more effective to handle high levels of uncertainty. Using a GSS, thirty-three groups solved a business case, with varying levels of uncertainty, and using two different group processes.;Overall, the study did not provide any empirical evidence to support the claim that the coordination mode-level of task uncertainty fit has an impact on group processes and outcomes. The lack of significant findings was associated with the ineffectiveness of the manipulations used.;Nevertheless, the study provided valuable information regarding the effects that the sequencing of processes has on some outcome factors. Specifically, it showed that creativity, and level of goal agreement are contingent upon the presence/absence of sequenced processes. Moreover, the study showed that positive attitudes toward solving tasks in GSS environments mediate the faithfulness of any appropriation process. These findings have implications for the use of GSSs. If GSS groups are to be more creative, they should be given the leeway that is associated with non-sequenced processes. On the other hand, when consensus is a desirable attribute of the solutions developed, sequenced decision processes should be the option to consider. |
