Abstract
An experiment has been completed to investigate how operators' understanding of a dynamic situation is affected by the content in a technical system's situational picture. Two types of situational pictures were used. One displayed a unique situational picture adjusted to operators' specific needs and the other displayed a joint identical situational picture. The experiment was conducted as a within subject design with four different teams. Results shows that content in a technical system's situational picture influence operators' information interpretation, perceived performance and situational understanding. Furthermore, operators are not aware of that the reason for the differences is the content in the situwational picture. Findings from this experiment show that operators should use a joint situational picture and not adjust it to their own specific requirements in order to increase shared situational understanding and perceived performance.
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