bowtie theory
TRANSCRIPT
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MISSION ANALYSIS &
RISK ASSESSMENT
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Objectives
To list down the safety culture adopted by industry
To discuss The Basic management System
To understand Bow tie Process
To discuss the term “ALARP”
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Safety Culture
Generative:
Proactive:
Calculative:
Reactive:
Pathological:
“We do things well, or we don’t do them”
“We work on the problems we still find”
“We have systems in place to manage all
hazards”
“Risk Management is important, we do a lot every time we have an
incident”
“ Who cares as long as we not caught”
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Management System
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Risk Evaluation and Management
Not separate but integral
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Risk Evaluation and Management
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Stakeholders/Clients Demand Expectations about risks have
change
Organisations to have their risk management on track.
Bow Tie helps you to organise your risk management in a way that is easily explained
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Introduction
Bow Tie is a generic methodology that can be of value to analyse and manage all kinds of major risks
Bow Tie originated in the area of Health, Safety and Environtment (HSE) and has proved it’s value for all kind of business risks.
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Risk Management Process
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Bow Tie Process
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Risk
Identify risks (What do we mean by risk?)
Risk = Probability x Consequence
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Risk Matrix
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Bow Tie
Step 1 – Identify the Hazard
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Hazards
EXAMPLE?
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Step 2 – Identify The Top Event
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Top Event
EXAMPLES:
oLoss of ContainmentoStructural FailureoDropped ObjectoLoss of ControloElectrical Shock
oFalls to same LeveloFalls to Lower LeveloOxygen DeficiencyoLoss of Separation
oContact
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Step 3 – Identify threats
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THREAT
EXAMPLES
Thermal – High TemperatureChemical – corrosionBiological -Bacteria/Marine growthRadiation – UltravioletKinetic – FatigueElectrical – High VoltageEnvironmental Condition – poor visibility/storm/eathquakeUncertainty – design unknownsHuman Factor - incompetence
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Step 4 – Identify consequences
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CONSEQUENCE
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Step 5 – Identify Threat Barriers
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Threat Barriers
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Threat Barriers
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Step 6. Identify Recovery Measures
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Recovery Measures
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Step 7. Identify Escalation Factors“How might controls fail?”, “How might their effectiveness be
undermined?”
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Step 8. Identify Escalation Factor
Controls “How might controls fail?”,
“How might their effectiveness be undermined?”
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Step 8. Identify Escalation Factor Controls
“How do we make sure controls don’t fail?”
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Escalation Factor Controls
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ALARP What is ALARP?
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Bow Tie
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Risk Management
Effective Risk Management is only possible if PEOPLE are assigned responsibilities for CONTROLS
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Risk Management
You cannot ‘buy’ risk management, you cannot delegate risk
management to a ‘group over there’, it has to become part and parcel of
your overall culture