Validating cognitive support for operators of complex human-machine systems

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Modem nuclear power plants (NPPs) are complex systems whose performance is the result of an intricate interaction of human and system control. A complex system may be defined as one which supports a dynamic process involving a large number of elements that interact in many different ways. Safety is addressed through defense-in-depth design and preplanning; i.e., designers consider the types of failures that are most likely to occur and those of high consequence, and design their solutions in advance. However, complex interactions and their failure modes cannot always be anticipated by the designer and may be unfamiliar to plant personnel. ... continued below

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10 p.

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O`Hara, J. & Wachtel, J. October 1995.

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  • O`Hara, J. Brookhaven National Lab., Upton, NY (United States)
  • Wachtel, J. US Nuclear Regulatory Commission, Washington, DC (United States)

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Description

Modem nuclear power plants (NPPs) are complex systems whose performance is the result of an intricate interaction of human and system control. A complex system may be defined as one which supports a dynamic process involving a large number of elements that interact in many different ways. Safety is addressed through defense-in-depth design and preplanning; i.e., designers consider the types of failures that are most likely to occur and those of high consequence, and design their solutions in advance. However, complex interactions and their failure modes cannot always be anticipated by the designer and may be unfamiliar to plant personnel. These situations may pose cognitive demands on plant personnel, both individually and as a crew. Other factors may contribute to the cognitive challenges of NPP operation as well, including hierarchal processes, dynamic pace, system redundancy and reliability, and conflicting objectives. These factors are discussed in this paper.

Physical Description

10 p.

Notes

INIS; OSTI as TI96000421

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  • 5. European conference on cognitive science approaches to process control, Helsinki (Finland), 30 Aug - 1 Sep 1995

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  • Other: TI96000421
  • Report No.: BNL-NUREG--62207
  • Report No.: CONF-9508177--1
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 114026
  • Archival Resource Key: ark:/67531/metadc622313

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Office of Scientific & Technical Information Technical Reports

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  • October 1995

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  • June 16, 2015, 7:43 a.m.

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  • April 8, 2016, 12:26 p.m.

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O`Hara, J. & Wachtel, J. Validating cognitive support for operators of complex human-machine systems, article, October 1995; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc622313/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.