Number of co-authors:14
Number of publications with 3 favourite co-authors:Ray A. Reaux:2Lisa J. Stewart:2Kathleen T. Ashenfelter:1
Elizabeth D. Murphy's 3 most productive colleagues in number of publications:Christine M. Mitch..:12Sylvia B. Sheppard:10Kelly Harwood:6
...that strange new zone between medium and message. That zone we call the interface
-- Steven Johnson, 1997
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The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad
The Encyclopedia of Human-Computer Interaction, 2nd Ed.
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Elizabeth D. Murphy
Publications by Elizabeth D. Murphy (bibliography)
Murphy, Elizabeth D., Albert, Harold A., Chen, Jennifer M. and Anderson, Gregory G. (2012): The Role of Mental Computations in Current and Future En Route Air Traffic Control. In: Proceedings of the Human Factors and Ergonomics Society 2012 Annual Meeting 2012. pp. 110-114.
As air traffic control (ATC) becomes increasingly automated, software designers need to know how air traffic controllers process information as they manage operations in today's system. Extracting knowledge from today's controller workforce and representing that knowledge in the form of mental computations are essential steps toward needs assessment and development of advanced decision-aiding tools and technologies. A recent task analysis documented information derived by controllers from their cognitive integration of displayed information. This work envisions future, more detailed analyses of the controller's mental computations as essential to identifying needs for advanced software tools, including predictive displays.
© All rights reserved Murphy et al. and/or Human Factors and Ergonomics Society
Olmsted-Hawala, Erica L., Murphy, Elizabeth D., Hawala, Sam and Ashenfelter, Kathleen T. (2010): Think-aloud protocols: a comparison of three think-aloud protocols for use in testing data-dissemination web sites for usability. In: Proceedings of ACM CHI 2010 Conference on Human Factors in Computing Systems 2010. pp. 2381-2390.
We describe an empirical, between-subjects study on the use of think-aloud protocols in usability testing of a federal data-dissemination Web site. This double-blind study used three different types of think-aloud protocols: a traditional protocol, a speech-communication protocol, and a coaching protocol. A silent condition served as the control. Eighty participants were recruited and randomly pre-assigned to one of four conditions. Accuracy and efficiency measures were collected, and participants rated their subjective satisfaction with the site. Results show that accuracy is significantly higher in the coaching condition than in the other conditions. The traditional protocol and the speech-communication protocol are not statistically different from each other with regard to accuracy. Participants in the coaching condition are more satisfied with the Web site than participants in the traditional or speech-communication condition. In addition, there are no significant differences with respect to efficiency (time-on-task). This paper concludes with recommendations for usability practitioners.
© All rights reserved Olmsted-Hawala et al. and/or their publisher
Sheppard, Sylvia B. and Murphy, Elizabeth D. (1993): Celebrating a Decade of Joyful Innovation: HCIL's 10th Annual Symposium and Open House. In ACM SIGCHI Bulletin, 25 (4) pp. 29-31.
Murphy, Elizabeth D., Reaux, Ray A., Stewart, Lisa J., Coleman, William D. and Harwood, Kelly (1989): Modeling Air Traffic Controller Performance in Highly Automated Environments. In: Proceedings of the Human Factors Society 33rd Annual Meeting 1989. pp. 47-51.
As increasing levels of automation are planned for the United States' air traffic control system, there is a need to assess planned system design changes for their potential effects on human performance. The model of controller performance developed by this work permits the comparison of prior and planned system transition states on several performance dimensions: perceptual, analytic, response, and resource management. Systematic predictions of performance provide a basis for identifying potential trouble spots in a planned system. The model can be employed to determine whether system design changes will improve controller performance without placing unreasonable demands on the controller's resources. It can be tailored to represent human performance variables and sources of resource demand in any complex automated system.
© All rights reserved Murphy et al. and/or Human Factors Society
Reaux, Ray A., Murphy, Elizabeth D., Stewart, Lisa J., Gresh, Janet L. and Bruce, Karin (1989): Building a Modeling and Simulation Analysis Tool to Predict Air Traffic Controller Workload and Performance. In: Proceedings of the Human Factors Society 33rd Annual Meeting 1989. pp. 52-56.
To meet expected increases in domestic air traffic, the Federal Aviation Administration (FAA) will increase the level of automation in the domestic air traffic control (ATC) system. There is a need to assess the effects of the increased automation on controller workload and performance. Software-based engineering tools are needed to automate the analysis, allowing designers to identify potential problems early in the system design lifecycle. This paper describes one such tool, the Predictive Air Traffic Controller Analysis Model (PATCAM), a modeling and simulation analysis tool that uses a system operations concept and task attributes database, a controller activities model, a sector environment model and simulation engine, and a workload or performance model to predict the impact of system design changes on controller workload or performance.
© All rights reserved Reaux et al. and/or Human Factors Society
Murphy, Elizabeth D. and Mitchell, Christine M. (1986): Cognitive Attributes: Implications for Display Design in Supervisory Control Systems. In International Journal of Man-Machine Studies, 25 (4) pp. 411-438.
Based on a review of the literature, a cognitive model of human information processing is presented. The model synthesizes several perspectives with the intent of suggesting guidelines for human-computer interface designers of supervisory control systems. Given this model, the paper identifies 18 attributes of cognition that are particularly relevant to information display design and real-time decision-making. The discussion of each attribute of cognition has four components. First, each cognitive attribute is defined based on current interpretations in the cognitive-psychology literature. Next, given traditional design approaches, likely negative outcomes of automation as they affect the cognitive attribute are identified. Third, given the hypothesized effects, improvements in conventional design are suggested. Finally, the discussion of each cognitive attribute concludes with an example drawn from existing command and control environments. The paper is intended to provide a well-defined and coherent background for empirical research exploring alternative strategies of human-computer interface design for decision-makers in supervisory control systems.
© All rights reserved Murphy and Mitchell and/or Academic Press
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