TY - GEN
T1 - Cognitive task analysis of electric power system control center operations
AU - Rantanen, Esa M.
AU - Winkle, Jonathan A.
AU - Overbye, Thomas J.
PY - 2008
Y1 - 2008
N2 - A cognitive task analysis of reliability coordinators in an electric power system control center was performed in conjunction with evaluation of three novel display solutions for line overload detection and correction. Eight experienced regional operations center operators participated in the study. The operators were shown two different geographic data view displays and a tabular, text-based tool, and interviewed as they solved three different transmission line overload problems using the different displays and tools. The operators were asked to think aloud as they performed the tasks. Their comments were recorded and transcribed, and used as a basis for the cognitive task analysis. The results indicated that although the operators liked the system data visualization approaches, they also placed high value on tabular presentation of textbased and numerical data. Visualization solutions should therefore be used to supplement existing displays and tools. This study also serves as an example of a participatory design approach to development of novel visualization solutions for complex task environments.
AB - A cognitive task analysis of reliability coordinators in an electric power system control center was performed in conjunction with evaluation of three novel display solutions for line overload detection and correction. Eight experienced regional operations center operators participated in the study. The operators were shown two different geographic data view displays and a tabular, text-based tool, and interviewed as they solved three different transmission line overload problems using the different displays and tools. The operators were asked to think aloud as they performed the tasks. Their comments were recorded and transcribed, and used as a basis for the cognitive task analysis. The results indicated that although the operators liked the system data visualization approaches, they also placed high value on tabular presentation of textbased and numerical data. Visualization solutions should therefore be used to supplement existing displays and tools. This study also serves as an example of a participatory design approach to development of novel visualization solutions for complex task environments.
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M3 - Conference contribution
AN - SCOPUS:70350599408
SN - 9781605606859
T3 - Proceedings of the Human Factors and Ergonomics Society
SP - 1934
EP - 1938
BT - 52nd Human Factors and Ergonomics Society Annual Meeting, HFES 2008
T2 - 52nd Human Factors and Ergonomics Society Annual Meeting, HFES 2008
Y2 - 22 September 2008 through 26 September 2008
ER -