Compliance with the automotive standard ISO 26262 requires the development of a safety case for electrical and/or electronic (E/E) systems whose malfunction has the potential to lead to an unreasonable level of risk. In order to justify freedom from unreasonable risk, a safety argument should be developed in which the safety requirements are shown to be complete and satisfied by the evidence generated from the ISO 26262 work products. However, the standard does not provide practical guidelines for how it should be developed and reviewed. More importantly, the standard does not describe how the safety argument should be evaluated in the functional safety assessment process. In this paper, we categorise and analyse the main argument structures required of a safety case and specify the relationships that exist between these structures. Particular emphasis is placed on the importance of the product-based safety rationale within the argument and the role this rationale should play in assessing functional safety. The approach is evaluated in an industrial case study. The paper concludes with a discussion of the potential benefits and challenges of structured safety arguments for evaluating the rationale, assumptions and evidence put forward when claiming compliance with ISO 26262.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Safety Cases and Their Role in ISO 26262 Functional Safety Assessment


    Beteiligte:
    Birch, John (Autor:in) / Rivett, Roger (Autor:in) / Habli, Ibrahim (Autor:in) / Bradshaw, Ben (Autor:in) / Botham, John (Autor:in) / Higham, Dave (Autor:in) / Jesty, Peter (Autor:in) / Monkhouse, Helen (Autor:in) / Palin, Robert (Autor:in)


    Erscheinungsdatum :

    2013


    Format / Umfang :

    12 Seiten





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Safety and ISO 26262

    Gliwa, Peter | Springer Verlag | 2021


    Impact of Functional Safety on EMC: ISO 26262

    Nelson, Jody J. / Kado, Robert / Taylor, William | SAE Technical Papers | 2013


    Impact of Functional Safety on EMC: ISO 26262

    Kado, R. / Nelson, J.J. / Taylor, W. et al. | British Library Conference Proceedings | 2013


    Einführung in die ISO 26262 "Functional Safety - Road Vehicles"

    Heinsohn, Jana Maria / Kostrzewa, Thorsten / Hieronymus, Martin | TIBKAT | 2011


    Functional Safety of Driver Assistance Systems and ISO 26262

    Wilhelm, Ulf / Ebel, Susanne / Weitzel, Alexander | Springer Verlag | 2015