|•||Most of the psychophysiological strain resulting from handling operations at the CAD system are due to ergonomic deficiencies of the systems.|
|•||Stress can be minimized when the CAD system is designed to be as task appropriate as possible.|
|•||The evaluation of the design activities and the video confrontation shows that the chosen strategy of problem solving is, in most cases, far from being a linear progression through the various phases. Individual problem solving strategies must be supported.|
|•||Organizational factors like user qualification and training, support structures, data exchange with other applications, and so on are the most important factors for an efficient (and economic) CAD application in terms of performance and psychophysiological responses.|
The results leave no doubt that a psychophysiological approach to the identification of problem areas for the design of working conditions provides a fruitful contribution to their improvement.
This publication is dedicated to our honored colleague Wolfgang Beitz, Professor for Engineering Design at Technical University of Berlin. He died in November 1998 after an outstanding life dedicated to science. We are grateful for the many energizing discussions between Engineering Design and Ergonomics.
This research was funded over 6 years by a grant from the German Research Association. Thank you for giving us the opportunity to do this interdisciplinary research.
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