[ISO26262] 5. Product developement at the hardware level

5-5 General topics for the product development at the hardware level

 -work products: Refined safety plan

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5-6 Specification of hardware safety requirements

 -work products:

    Hardware safety requirements specification(includeing test and evaluation criteria)

    Hardware-software interface specification(HSI)(refined)

    Hardware safety requirements verification report

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5-7 Hardware design

 -work products:

    Hardware design specification

    Hardware safety analysis report

    Hardware design verification report

    Specifcation of requirements related to production, operation, service and decommissioning

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5-8 Evaluation of the hardware architectural metrics

 -work products:

    Analysis of the effectiveness of the architecture of the item to cope with the random hardware failures

    Verification review report of evaluation of the effectiveness of the architecture of the item to cope with the random hardware failures

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5-9 Evaluation of the safety goal violations due to random hardware failures

 -work products:

    analysis of safety goal violations due to random hardware failures

    Specification of dedicated measures for hadware

    Verification review report of evaluation of safety goal violations due to random hardware failures

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5-10 Hardware integration and verification

 -work products:

    Hardware integration and verification specification

    Hardware integration and verification report

 

●range of value DC

none: DC<60%

Low: 60%<= DC < 90%

Medium: 90%<= DC<99%

High: 99%<= DC <100%

 

●Target values metrics

-Single point fault metric

ASIL B >=90%

ASIL C >=97%

ASIL D >=99%

-Latent-fault metric

ASIL B >=60%

ASIL C >=80

ASIL D >=90%

-Probabilistic Metric for random Hardware Failures(PMHF)

ASIL B <10^-7(100FIT)

ASIL C <10^-7(100FIT)

ASIL D <10^-8(10FIT)

 

●FME(D)A-HW component analysis

 Input: Hardware Design Specification

     circuit diagrams + partlists