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Author Ye, Fan ♦ Kelly, Tim
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Failure Type ♦ Untrustworthy Component ♦ Component Failure Mitigation ♦ Ots Component ♦ Increased Confidence ♦ System Level Effect ♦ Available Fault Tolerance Technique ♦ Potential Failure ♦ Software Component ♦ Component Failure ♦ Systematic Approach ♦ Suitable Fault Tolerance Technique ♦ Safetycritical Context ♦ System Level Hazard ♦ Complex Safety-critical Application ♦ Black-box Nature ♦ Appropriate Mitigation Strategy
Abstract Off-The-Shelf (OTS) software components are being used within complex safety-critical applications. However, to use these untrustworthy components with confidence, it is necessary to ensure that potential failures of the components cannot contribute to system level hazards. This requires the system level effects of component failures to be understood and mitigated using suitable fault tolerance techniques. However, the black-box nature of an OTS component implies the visibility and modifiability of the component is very limited. This restricts the choice of available fault tolerance techniques in mitigating failures of an OTS component. This paper presents a systematic approach to facilitate the selection of appropriate mitigation strategies according to a classification of failure types of an untrustworthy component. This approach enables an untrustworthy component to be used in a safetycritical context with increased confidence. 1.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article