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Defense-in-Depth and Diverse Qualification of Safety-Critical Software

  • Horst Miedl
  • Jang-Soo Lee
  • Arndt Lindner
  • Ernst Hoffman
  • Josef Martz
  • Young-Jun Lee
  • Jong-Gyun Choi
  • Jang-Yeol Kim
  • Kyoung-Ho Cha
  • Se-Woo Cheon
  • Cheol-Kwon Lee
  • Gee-Yong Park
  • Kee-Choon Kwon
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4680)

Abstract

In the Korea Nuclear instrumentation and control (I&C) System (KNICS) project, a digital safety system including Reactor Protection System (RPS) and Engineered Safety Features-Component Control System (ESF-CCS) is developed. It is based on a safety grade Programmable Logic Controller (PLC) as a platform for the safety critical I&C systems. The software used in the digital safety system is classified as safety-critical, and it is qualified according to an appropriate lifecycle. This lifecycle includes design and qualification activities for the components and the system. In the KNICS project a defense-in-depth organizational structure for qualification is implemented based on different teams including 3rd party review teams. Each team uses diverse techniques, methods, and tools for their qualification tasks. Using the Korean KNICS project as an example, the results of Defence-in-Depth and Diversity (D3) qualification of safety-critical software are presented.

Keywords

Nuclear Power Plant International Atomic Energy Agency Qualification Process Programmable Logic Controller Nuclear Regulatory Commission 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Horst Miedl
    • 1
  • Jang-Soo Lee
    • 2
  • Arndt Lindner
    • 1
  • Ernst Hoffman
    • 1
  • Josef Martz
    • 1
  • Young-Jun Lee
    • 2
  • Jong-Gyun Choi
    • 2
  • Jang-Yeol Kim
    • 2
  • Kyoung-Ho Cha
    • 2
  • Se-Woo Cheon
    • 2
  • Cheol-Kwon Lee
    • 2
  • Gee-Yong Park
    • 2
  • Kee-Choon Kwon
    • 2
  1. 1.Institut fuer Sicherheitstechnologie, Postfach 12 13, 85748 GarchingGermany
  2. 2.KAERI: Korea Atomic Energy Research Institute, DaejeonKorea

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