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Assisted Assignment of Automotive Safety Requirements
Jan.-Feb. 2014 (vol. 31 no. 1)
pp. 62-68
Luis da Silva Azevedo, University of Hull
David Parker, University of Hull
Martin Walker, University of Hull
Yiannis Papadopoulos, University of Hull
Rui Esteves Araujo, University of Porto
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.
Index Terms:
Hazards,Resource management,ISO standards,Automotive engineering,Batteries,Software quality,HiP-HOPS,functional safety,ISO 26262,ASIL decomposition,ASIL automation,ASIL,Automotive Safety Integrity Levels
Citation:
Luis da Silva Azevedo, David Parker, Martin Walker, Yiannis Papadopoulos, Rui Esteves Araujo, "Assisted Assignment of Automotive Safety Requirements," IEEE Software, vol. 31, no. 1, pp. 62-68, Jan.-Feb. 2014, doi:10.1109/MS.2013.118
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