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A controlled experiment on component fault trees

  • In safety analysis for safety-critical embedded systems, methods such as FMEA and fault trees (FT) are strongly established in practice. However, the current shift towards model-based development has resulted in various new safety analysis methods, such as Component Integrated Fault Trees (CFT). Industry demands to know the benefits of these new methods. To compare CFT to FT, we conducted a controlled experiment in which 18 participants from industry and academia had to apply each method to safety modeling tasks from the avionics domain. Although the analysis of the solutions showed that the use of CFT did not yield a significantly different number of correct or incorrect solutions, the participants subjectively rated the modeling capacities of CFT significantly higher in terms of model consistency, clarity, and maintainability. The results are promising for the potential of CFT as a model-based approach.

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Metadaten
Author:Jessica Jung, Andreas Jedlitschka, Kai Höfig, Dominik Domis, Martin Hiller
Parent Title (English):International Conference on Computer Safety, Reliability, and Security (SAFECOMP 2013)
Publisher:Springer
Place of publication:Berlin, Heidelberg
Document Type:Conference Proceeding
Language:English
Publication Year:2013
Tag:CFT; FMEA; Safety-critical embedded systems
First Page:285
Last Page:292
faculties / departments:Fakultät für Informatik
Dewey Decimal Classification:0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 000 Informatik, Informationswissenschaft, allgemeine Werke