Fault-Tolerant and Performability for Safety-Critical Systems: A Study Based on Interrelation

Ahamad, Shakeel; Goel, Swati

doi:10.2139/ssrn.3842659

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Performability Evaluation Methods Based On Phased Fault Trees1

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2024

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“…Dependability uses notions like availability and reliability to assess the system's operability based on whether a failure has occurred or not [54]. Performance determines a system's capacity to function without faults.…”

Section: Performability Evaluation Methods Based On Phased Fault Treesmentioning

confidence: 99%

Performability Evaluation of Autonomous Underwater Vehicles Using Phased Fault Tree Analysis

Byun,

Lee

2024

JMSE

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This paper presents a phased fault tree analysis (phased-FTA)-based approach to evaluate the performability of Autonomous Underwater Vehicles (AUVs) in real time. AUVs carry out a wide range of missions, including surveying the marine environment, searching for specific targets, and topographic mapping. For evaluating the performability of an AUV, it is necessary to focus on the mission-dependent components and/or subsystems, because each mission exploits different combinations of devices and equipment. In this paper, we define a performability index that quantifies the ability of an AUV to perform the desired mission. The novelty of this work is that the performability of the AUV is evaluated based on the reliability and performance of the relevant resources for each mission. In this work, the component weight, expressing the degree of relevance to the mission, is determined using a ranking system. The proposed ranking system assesses the performance of the components required for each mission. The proposed method is demonstrated under various mission scenarios with different sets of faults and performance degradations.

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Section: Performability Evaluation Methods Based On Phased Fault Treesmentioning

confidence: 99%

Performability Evaluation of Autonomous Underwater Vehicles Using Phased Fault Tree Analysis

Byun,

Lee

2024

JMSE

View full text Add to dashboard Cite

show abstract

Fault-Tolerant and Performability for Safety-Critical Systems: A Study Based on Interrelation

Cited by 1 publication

References 0 publications

Performability Evaluation of Autonomous Underwater Vehicles Using Phased Fault Tree Analysis

Performability Evaluation of Autonomous Underwater Vehicles Using Phased Fault Tree Analysis

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