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ReferencesNavigation arrowAuthorsNavigation arrowLeslie R. Eisler
May 23

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Leslie R. Eisler

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Publications by Leslie R. Eisler (bibliography)

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1995
 
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Eisler, Leslie R., Smith, M. Gregory and Booth, Lewie E. (1995): System Safety Analysis of the Yucca Mountain Tunnel Boring Machine. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. p. 933.

“The purpose of the analysis was to systematically identify and evaluate potential hazards to personnel related to the design and use of the Yucca Mountain Site Characterization Project, Exploratory Studies Facility (ESF), Tunnel Boring Machine (TBM). The analysis was performed in accordance with MIL-STD-882C, System Safety Program Requirements. The analysis required three steps -- hazard/scenario identification, consequence assessment, and frequency assessment. The result was a "risk evaluation" of events, breakdowns, incidents, or other occurrences that may have a negative effect on personnel safety. Four techniques were used to aid in the identification and analysis of hazards -- Scenario Analysis; Hazards Analysis; Failure Modes, Effects and Criticality Analysis; and Human Factors Engineering Analysis. A Process Evaluation Tree Analysis was also performed to confirmed that there was at least one scenario for each hazard and one mitigation feature for each scenario. Once the hazards were identified they were placed in context by developing scenarios that illustrated how the hazards could harm personnel. Each scenario contained at least one mitigation feature to mitigate the hazard; most scenarios contained more than one mitigation feature. For each scenario a hazard frequency, a consequence, and an overall risk rating was established. Risk was defined as a function of frequency and consequence. Five frequency categories and four consequence categories were used to generate a five by four, or 20 cell, risk matrix. Each cell was assigned a qualitative risk rating -- high, medium, low, extremely low. Since a significant portion of the analysis was performed after the design had been completed hazard mitigation relied heavily on design retrofits and the development of training and procedures.”

© All rights reserved Eisler et al. and/or Human Factors Society

1989
 
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Balen, Paula M. Van and Eisler, Leslie R. (1989): Evaluation of Audio Response Time Delay Requirements for Digitized Audio. In: Proceedings of the Human Factors Society 33rd Annual Meeting 1989. pp. 234-238.

“As digital voice data is increasingly replacing analog in system applications, user interface requirements supporting this technology must be established. This experiment was conducted to determine whether system response time affected a user's ability to control movement of recorded speech while keying in a verbatim report of the speech content. Experienced subjects performed a transcription task under four different response times. Upon completion of the task, the subject ordered the response times from shortest to longest and rank-ordered their preferences for response delay times. Performance data was collected to discover if response time differences affected performance. Subjects were unable to identify the response time delays correctly; and, based on the preference rankings, the subjects were most satisfied with a response time delay range between 100 ms and 150 ms and least satisfied with a response time delay of 250 ms. Subjects stated that with the longest and shortest response time delays they had trouble positioning in the audio. Response time delays did not affect subject performance, although other significant results were found.”

© All rights reserved Balen and Eisler and/or Human Factors Society

 
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Changes to this page (author)

19 Feb 2010: Modified
27 Jun 2007: Added
26 Jun 2007: Added

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May 23

“ Knowledge is commonly socially constructed, through collaborative efforts towards shared objectives or by dialogues and challenges brought about by different persons' perspectives. ”

-- G. Salomon (in "Distributed Cognitions: Psychological and Educational Considerations")

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

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