Rank: Forum user 
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Hi All,
I am looking for a illustrated flow chart which shows how the qualitative risk analysis techniques are interrelated to the quantitative techniques.
Appreciate any help/reference in this regard.
Regards,
Prads
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Rank: Super forum user
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I have never seen such a flow chart. In my experience quantitative techniques are usually used for complex tasks and scenarios with multiple hazards. I have used qualitative techniques for much simpler tasks as it is quick and easy. I have never used qualitative techniques to feed into a quantitative risk assessment.
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Rank: Super forum user
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Agree, never seen such a chart.
The best I can suggest that there is an HSE document that summarises when to use qualitative risk assessments and when to use quantified risk assessment.
Sorry don't remember where it is - think its in the 'offshore' bit of HSE guidance.
Basicalyy qualitative is used when a design is familiar with established engineering techniques.
Quantified risk assessment is used for new technqiues/new technolgies
Although this isn't always true
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Rank: Super forum user
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Rank: Super forum user
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And qualitative assessments are used in special needs and similar very complex human areas that have to rely on experience and opinion alone in most situations
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