ABSTRACT

This talk focuses on methods of modeling degrees of automation in human-in-the-loop systems as well as the impact on operator situation awareness (SA) responses. We contend that methods of some prior research do not represent engineering models, per se. Furthermore, discrete and ordinal characteristics of other models limit reliable prediction of operator performance with automation. This research defines an“automation rate” (AR) function involving classification of all system functions according to stages of information processing, calculation of the AR for each stage, setting weighting factors for these rates, and finally obtaining an overall AR for the system. The practicality and feasibility of this model are verified through case study analysis. In addition, we formulate a new model of operator SA responses to AR, based on existing empirical research findings. Through the case analysis and mathematical proof, the rationality of the form of these new models is demonstrated. This work lays the foundation for subsequent optimization of automated system design for operator SA.

BIOGRAPHY

David Kaber is currently the Dean’s Leadership Professor and Chair of the Department of Industrial and Systems Engineering at the University of Florida (UF). Prior to joining UF, Kaber was a distinguished professor of industrial engineering at North Carolina State University where he also served as the Director of Research for the Ergonomics Center of North Carolina. Kaber’s primary area of research interest is human-systems engineering with a focus on human-automaton interaction, including design and analysis for situation awareness in complex human in-the-loop systems. Domains of study for his research have included physical work systems, industrial safety systems, robotic systems, transportation systems and healthcare. Kaber is a senior member of IEEE and previous Editor-in-Chief of IEEE Transactions on Human-Machine Systems. He is a fellow of Institute of Industrial Engineers and the Human Factors & Ergonomics Society. Kaber is also a Certified Human Factors Professional (BCPE) and a Certified Safety Professional (BCSP).