Product Safety Engineering

TC12, May 2009

Ecma/TC12/2009/011

From:Incident-based

Product-specificConstruction-based

Reactive

To:Hazard-basedTechnology-independentPerformance-basedProactive

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TC12Incident Based Safety engineering

Incident happens

Patch construction that avoids incident or

mitigates undesired results

Measure effectiveness

ConstructionEffective?

no

yes

Analyse incident

Standardise construction

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TC12Hazard Based Safety Engineering

2) Hazardous

Energy

Source

6) Safeguarded

Body Part

4) ,5)

Potentially

Safeguarded

Body Part

4), 5)

Safeguard by

Preventing,

deflecting

and/or

attenuating

Hazardous

energy

flow

3) Potentially

Harmed

Body Part

3) Energy

Transfer

Mechanism

1) Energy

source

Identify Energy source

Is source Hazardous?

Identify Means by which Energy source can be

Transferred to a body part

Design safeguard thatprevents transfer

Measure effectiveness

Safeguard Effective?

done

no

no

yes

yes