Functional Safety 2016

Summary - our essential questions and how to answer

them

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Does the SIF do what it should?

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Work up a summary SRS

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Check your proof test is fit for purpose against that SRS

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Does the SIF deliver the risk reduction it should?

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Another way of saying, check the PFD

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Historic data - no need to open the black box

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No historic data - open the black box and calculate (historic data or calculation)

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Are the assumptions you made in the HAZOP / LOPA still true?

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Are you avoiding new systematic errors?

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FSM by way of the safety plan

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Verification

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Functional Safety Audits and Assessments

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Effective monitoring and response