ABSTRACT
Situation awareness (SA) is used within Human Factors circles to describe the level of awareness that operators have of the situation that they are engaged in; it focuses on how operators develop and maintain a sufficient understanding of ‘what is going on’ in order to achieve success in task performance. Various definitions of SA are presented in the academic literature. Inaugural SA models were, in the main, focused on how individual operators develop and maintain SA whilst undertaking activity within complex systems. The popularity of the concept is such that various methods of measuring SA have been proposed and applied. SA requirements analysis is used to identify exactly what it is that comprises SA in the scenario and environment under analysis. Situation Awareness Global Assessment Technique is a freeze probe recall method that was developed to assess pilot SA based on the three levels of SA postulated by Endsley’s information processing model. These levels are perception, comprehension and projection.
