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By Mica R. Endsley

This publication is directed at human components researchers and practitioners who're engaged in designing platforms to help scenario wisdom (SA) in a large choice of parts and is liberally illustrated with real layout examples.

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Additional info for Designing for Situation Awareness: An Approach to User-Centered Design

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8). This can create a positive effect on SA as it frees up mental effort for more demanding tasks. For instance, a person riding a b ~ k c1s often unaware of whcrc her feet are in thelr cycle and can instead concentrate on where she wants to go. We oftcn think of automaticity in terms of physical taslts. Automaticity for mental tasks as well as physical tasks is also possible (Logan, 1988). , pressing the brakes) in a tightly coupled sequence. Automaticity can be observed in many tasks from driving a car to flying an aircraft.

Dynamically switching attention bctwcen thcsc devices and the driving task can be a challcnge. Similarly, thc grcatcr usc of tcchnologics, such as hclmct-mounted displays, for soldiers may rcsult in problen~s of attentional narrowing on displays to the ncglcct of what is going on around thcm. Future design efforts in thcsc domains and others need to explicitly considcr the effects of this attcntional tunneling SA demon and takc steps to countcract it. s working memory. This has significant implications for SA.

If the aircraft are truly in conflict, this would be a good thing. But false alarms are common: such is the case when the controller has already taken actions to separate the aircraft or the aircraft are already scheduled to turn or climb at a certain point taking them out of conflict. In this case, thc use of highly salient cues (flashing lights) creates unnecessary distractions that can act to degrade SA of the other information the controller is attempting to attend to. In many systems, flashing lights, moving icons, and bright colors are overused.

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Designing for Situation Awareness: An Approach to User-Centered Design by Mica R. Endsley


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