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Dependent failures are a critical concern in safety engineering. If such dependencies remain undetected, crucial assumptions underlying safety concepts and safety argumentation may become invalid. Dependent Failure Analysis (DFA) is a method used to identify these dependencies. However, existing methods and techniques to perform DFA systematically and efficiently are lacking in modern model-based tool support. In this paper, we introduce a model-based DFA approach that comprises the associated process, modeling concepts, and interfaces with other model-based safety engineering techniques.

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Model-Based Dependent Failure Analysis

  • 会议论文

  • 发表日期：

    2026年

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  • Daniel Schneider,
  • Ioannis Sorokos,
  • Santiago Velasco,
  • Peter Munk,
  • Markus Schweizer

摘要

Dependent failures are a critical concern in safety engineering. If such dependencies remain undetected, crucial assumptions underlying safety concepts and safety argumentation may become invalid. Dependent Failure Analysis (DFA) is a method used to identify these dependencies. However, existing methods and techniques to perform DFA systematically and efficiently are lacking in modern model-based tool support. In this paper, we introduce a model-based DFA approach that comprises the associated process, modeling concepts, and interfaces with other model-based safety engineering techniques.