Assisted Assignment of Automotive Safety Requirements
ISO 26262, a functional-safety standard, uses Automotive Safety Integrity Levels (ASILs) to assign safety requirements to automotive-system elements. System designers initially assign ASILs to system-level hazards and then allocate them to elements of the refined system architecture. Through ASIL de...
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Published in | IEEE software Vol. 31; no. 1; pp. 62 - 68 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Los Alamitos
IEEE
01.01.2014
IEEE Computer Society |
Subjects | |
Online Access | Get full text |
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Summary: | ISO 26262, a functional-safety standard, uses Automotive Safety Integrity Levels (ASILs) to assign safety requirements to automotive-system elements. System designers initially assign ASILs to system-level hazards and then allocate them to elements of the refined system architecture. Through ASIL decomposition, designers can divide a function's safety requirements among multiple components. However, in practice, manual ASIL decomposition is difficult and produces varying results. To overcome this problem, a new tool automates ASIL allocation and decomposition. It supports the system and software engineering life cycle by enabling users to efficiently allocate safety requirements regarding systematic failures in the design of critical embedded computer systems. The tool is applicable to industries with a similar concept of safety integrity levels. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0740-7459 1937-4194 |
DOI: | 10.1109/MS.2013.118 |