Type of Document Master's Thesis Author Cano, Arnoldo Rafael Author's Email Address email@example.com URN etd-4698-01644 Title Effects of Technological Support on Decision Making performance of Distributed Groups Degree Master of Science Department Industrial and Systems Engineering Advisory Committee
Advisor Name Title Kleiner, Brian M. Committee Chair Barfield, Woodrow S. Committee Member Williges, Robert C. Committee Member Keywords
- distributed groups
- desktop videoconferencing
- group communication support systems
- group decision support systems
Date of Defense 1997-12-12 Availability unrestricted AbstractThis research was concerned with the collection of empirical data necessary to estimate the effects of
decision support tools on the performance of distributed groups. Data was collected in a controlled
experimental environment that simulated a geographically-dispersed meeting through the use of
videoconferencing and group communication support (GCSS) technology. Results of the use of a Group
Decision Support System (GDSS) on group process and outcome variables were mixed. As predicted by
the literature the use of a GDSS by distributed groups improved overall group consensus, decision
accuracy, and decision effectiveness. The use of a GDSS also increased perceived process structure.
Contrary to previous studies, the use of a GDSS increased decision time, and decreased overall
satisfaction with the group process. No significant effects were found for perceived consensus,
cooperation, amount of information exchange, or confidence in the decision.
A strong correlation was found between decision quality and decision time. An even stronger correlation
was found between perceived structure of the process and satisfaction with the process. The lack of
feedback about the process and its outcomes could explain the lack of a GDSS effect on perceptions of
consensus, cooperation, and confidence in the decision. Perception of subjective measures of the process
may depend on the presence of the appropriate types of feedback. The results suggest that an increase in
structure without a perceived improvement in decision quality (confidence in the decision) tends to
reduce group satisfaction.
A richer taxonomy for Computer Supported Cooperative Work (CSCW) systems is proposed whereby
three orthogonal dimensions of group support are defined. These three dimensions of group support are:
Communication support, decision support, and presence support. This new taxonomy suggests a number of
research directions aimed at the empirical identification of contextual and design factors relevant to
distributed group performance and decision making performance in general.
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28.8 Modem 56K Modem ISDN (64 Kb) ISDN (128 Kb) Higher-speed Access Appendix1.pdf 122.26 Kb 00:00:33 00:00:17 00:00:15 00:00:07 < 00:00:01 Appendix2.pdf 37.68 Kb 00:00:10 00:00:05 00:00:04 00:00:02 < 00:00:01 Appendix3.pdf 26.82 Kb 00:00:07 00:00:03 00:00:03 00:00:01 < 00:00:01 Thesis_ETD.pdf 932.09 Kb 00:04:18 00:02:13 00:01:56 00:00:58 00:00:04
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