Assisted assignment of automotive safety requirements

Azevedo, Luis da Silva; Parker, David; Walker, Martin; Papadopoulos, Yiannis; Araújo, Rui Esteves

Abstract

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 & rsquo;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. © 1984-2012 IEEE.

Citation

Azevedo, L. D. S., Parker, D., Walker, M., Papadopoulos, Y., & Araújo, R. E. (2014). Assisted assignment of automotive safety requirements. IEEE Software, 31(1), 62-68. https://doi.org/10.1109/ms.2013.118

• Acceptance Date: Feb 1, 2014
• Online Publication Date: Sep 10, 2013
• Publication Date: 2014-01
• Deposit Date: Feb 23, 2016
• Publicly Available Date: Feb 23, 2016
• Journal: IEEE software
• Print ISSN: 0740-7459
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 31
• Issue: 1
• Pages: 62-68
• DOI: https://doi.org/10.1109/ms.2013.118
• Keywords: ASILs, Automotive safety integrity levels, HiP-HOPS, ISO 26262, Functional safety
• Public URL: https://hull-repository.worktribe.com/output/411125
• Publisher URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6594996
• Additional Information: © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Author's accepted manuscript of article published in: IEEE software, 2014, v.31, issue 1.