Next we consider the situation awareness of the combat unit as a team and how information is distributed, as well as how the display design can be expected to provide the specific type of support that soldiers need to perform their tasks. It then covers factors related to the task and the display system, including workload, complexity, automation, and environmental stressors. The chapter begins with a discussion of the individual characteristics that affect situation awareness, including perception, attention allocation, working memory, long-term memory stores, goal-directed behavior, and individual differences in relevant abilities. Although it is beyond our current understanding to specify how much situation awareness is enough, researchers in the area believe that good performance is linked to good situation awareness (Endsley, 1995). The final designs selected must provide soldiers with the situation awareness they need to be successful in performing their many functions. Assessment of situation awareness in a systematic fashion will allow potentially critical problems to be detected, many of which are outlined in this chapter. Evaluating the degree to which proposed system designs actually provide benefits to situation awareness and help the soldier to think and act quickly, however, is a critical issue that needs to be addressed through careful design testing. ![]() Overcoming these problems is a major goal of the Land Warrior System. The battlefield poses a variety of challenges to situation awareness: information overload, nonintegrated data, rapidly changing information, and a high degree of uncertainty brought on by lack of needed information. Situation awareness is a critical element of successful performance in the combat environment.
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