From safety analysis to software requirements

KM Hansen, AP Ravn… - IEEE Transactions on …, 1998 - ieeexplore.ieee.org
Software for safety critical systems must deal with the hazards identified by safety analysis.
This paper investigates, how the results of one safety analysis technique, fault trees, are …

Formal fault tree analysis-practical experiences

F Ortmeier, G Schellhorn - Electronic Notes in Theoretical Computer …, 2007 - Elsevier
Safety is an important requirement for many modern systems. To ensure safety of complex
critical systems, well-known safety analysis methods have been formalized. This holds in …

[PDF][PDF] Formal fault tree semantics

G Schellhorn, A Thums, W Reif - Proceedings of The Sixth …, 2002 - dslab.konkuk.ac.kr
In train control systems, more and more (electro-) mechanical devices are substituted by
software based devices. To sustain the high level safety standards for these embedded …

Reliability analysis of dynamic systems by translating temporal fault trees into Bayesian networks

S Kabir, M Walker, Y Papadopoulos - … October 27-29, 2014. Proceedings 4, 2014 - Springer
Classical combinatorial fault trees can be used to assess combinations of failures but are
unable to capture sequences of faults, which are important in complex dynamic systems. A …

Safety, complexity, and automated driving: holistic perspectives on safety assurance

S Burton, JA McDermid, P Garnett, R Weaver - Computer, 2021 - ieeexplore.ieee.org
This article extends safety assurance approaches for automated driving by explicitly
acknowledging the complexity of the emergent system behavior. We introduce a framework …

Practical causal models for cyber-physical systems

A Ibrahim, S Kacianka, A Pretschner, C Hartsell… - … TX, USA, May 7–9, 2019 …, 2019 - Springer
Unlike faults in classical systems, faults in Cyber-Physical Systems will often be caused by
the system's interaction with its physical environment and social context, rendering these …

Timing analysis of safety properties using fault trees with time dependencies and timed state-charts

J Magott, P Skrobanek - Reliability Engineering & System Safety, 2012 - Elsevier
Behavior in time domain is often crucial for safety critical systems. Standard fault trees
cannot express time-dependent behavior. In the paper, timing analysis of safety properties …

Fault tree and formal methods in system safety analysis

J Xiang, K Futatsugi, Y He - The Fourth International …, 2004 - ieeexplore.ieee.org
Fault tree analysis is a traditional deductive safety analysis technique that is applied during
the system design stage. However, traditional fault trees often suffer from a lack of formal …

Extending causal models from machines into humans

S Kacianka, A Ibrahim, A Pretschner, A Trende… - arXiv preprint arXiv …, 2019 - arxiv.org
Causal Models are increasingly suggested as a means to reason about the behavior of
cyber-physical systems in socio-technical contexts. They allow us to analyze courses of …

Designing safety-critical rehabilitation robots

S Roderick, C Carignan - Rehabilitation Robotics, 2007 - books.google.com
In recent years, robots have made substantial in-roads in the medical field and are gradually
finding their way into clinical practice. Intuitive Surgical's da Vinci® surgical robot broke …