WEBVTT

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Failure mode and effects analysis, often
called FMEA,

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can organize a discussion.

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This course uses a fictional three-level
scale for severity,

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occurrence and difficulty of detection.

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These numbers are ordinal teaching
categories, not measured probabilities.

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They are not official regulatory limits.

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The interactive exercise makes the
arithmetic visible while keeping the

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rationale and unresolved high-severity
concerns beside the result.

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In this exercise, higher severity means
more serious potential harm.

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Higher occurrence means the failure is
more plausible given the available

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evidence.

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Higher detection score means it is harder
to discover the failure before

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its consequence.

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Real projects need operational definitions
tailored to the scenario.

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A team should agree those definitions
before scoring.

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The labels lower and higher alone are not
sufficient for an approved site

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assessment.

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Multiply three by one by two and the
result is six.

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Multiply one by three by two and the
result is also six.

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Yet the first scenario has a higher
severity category.

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The chart shows equal total scores with
different component patterns.

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Equal products do not establish equivalent
risk or acceptable controls.

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Review the scenario, severity, uncertainty
and control options rather than

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letting one number decide.

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Suppose an independent alarm is proposed.

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Do not lower the detection score merely
because the alarm appears on a drawing.

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Determine whether it detects the relevant
failure,

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whether someone will respond and whether
that response is timely.

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Verify the control and reassess residual
risk.

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The activity asks you to compare two
scoring rationales and explain which

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assumptions need evidence.

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No score in this lesson automatically
authorizes release.