Software safety hazard analysis

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Description

Techniques for analyzing the safety and reliability of analog-based electronic protection systems that serve to mitigate hazards in process control systems have been developed over many years, and are reasonably well understood. An example is the protection system in a nuclear power plant. The extension of these techniques to systems which include digital computers is not well developed, and there is little consensus among software engineering experts and safety experts on how to analyze such systems. One possible technique is to extend hazard analysis to include digital computer-based systems. Software is frequently overlooked during system hazard analyses, but this is ... continued below

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90 p.

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Lawrence, J.D. February 1, 1996.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 24 times . More information about this report can be viewed below.

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Description

Techniques for analyzing the safety and reliability of analog-based electronic protection systems that serve to mitigate hazards in process control systems have been developed over many years, and are reasonably well understood. An example is the protection system in a nuclear power plant. The extension of these techniques to systems which include digital computers is not well developed, and there is little consensus among software engineering experts and safety experts on how to analyze such systems. One possible technique is to extend hazard analysis to include digital computer-based systems. Software is frequently overlooked during system hazard analyses, but this is unacceptable when the software is in control of a potentially hazardous operation. In such cases, hazard analysis should be extended to fully cover the software. A method for performing software hazard analysis is proposed in this paper.

Physical Description

90 p.

Notes

INIS; OSTI as TI96006597

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  • Other Information: PBD: Feb 1996

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  • Other: TI96006597
  • Report No.: NUREG/CR--6430
  • Report No.: UCRL-ID--122514
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/201805 | External Link
  • Office of Scientific & Technical Information Report Number: 201805
  • Archival Resource Key: ark:/67531/metadc665117

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  • February 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Aug. 1, 2016, 12:52 p.m.

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Lawrence, J.D. Software safety hazard analysis, report, February 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc665117/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.