BowTie Analysis Services
Visualise major accident risks, critical barriers & control effectiveness clearly.
10-Year Active Term Contract with Shell (Sabah/Sarawak) | CIDB G4.
The PISB Approach
Your team works safer and more efficiently with manuals they can actually understand.
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Analyze
Evaluate
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BowTie Analysis For Clearer
Major Accident Risk Management
BowTie Analysis is a structured risk assessment method used to visualise how hazardous events can occur, what consequences may follow, and which barriers are in place to prevent or mitigate them.
Pure Integrity supports organisations in developing practical BowTie Analysis studies that connect hazards, threats, consequences, preventive controls, and recovery measures into one clear visual model.
This helps asset owners, operators, and safety teams improve risk understanding, strengthen barrier management, and support better process safety decision-making.
The Process
How We Visualise Hazards, Threats, Consequences & Barriers
Pure Integrity begins by defining the major hazard, top event, threats, and potential consequences based on available process safety studies, operating experience, and stakeholder input.
We then identify preventive and mitigative barriers, assess barrier effectiveness, highlight gaps or weaknesses, and develop practical recommendations to strengthen major accident hazard control.
Problem We Solve
Unclear Major Accident Risk Picture
We help teams visualise how hazards can escalate into major incidents and what controls are in place.
Weak Barrier Visibility
We identify preventive and mitigative barriers so teams can clearly understand what protects the facility.
Gaps Between Risk Studies And Operations
We help translate technical risk studies into a practical visual format that operations and management teams can use.
Difficulty Communicating Process Safety Risk
We make complex hazard scenarios easier to explain across engineering, operations, maintenance, HSE & leadership teams.
Benefits
BowTie Analysis helps organisations communicate major accident risks clearly and strengthen barrier management.
Supports safe operation of aging assets
Improves visibility of hazards, threats & consequences
Clarifies preventive & mitigative barriers
Supports major accident hazard management
Strengthens barrier ownership & assurance
Improves risk communication across teams
Helps identify gaps in existing controls
Why Us?
Pure Integrity provides structured & practical BowTie Analysis consulting for hazardous operations, safety-critical facilities & asset-intensive industries.
Structured Process Safety Approach
We develop BowTie studies using clear methodology, engineering logic, and practical workshop facilitation.
Strong Barrier Management Understanding
We help clients identify, evaluate, and strengthen the barriers that prevent or mitigate major accident events.
Practical Visual Risk Communication
Our BowTie outputs help technical and non-technical teams understand risk more clearly.
Integration With HAZOP, HAZID And PHA
We can develop BowTie analysis based on existing hazard studies, process risk assessments, and major accident hazard registers.
Deliverables
BowTie Analysis report
Hazard and top event definition
Threat and consequence mapping
Preventive and mitigative barrier register
Barrier effectiveness review
Gap analysis and improvement recommendations
Action tracking log
BowTie diagrams or visual risk models
Johan Andak is a process safety and operations specialist with decades of experience in the oil and gas, petrochemical, and energy sectors. As Managing Director of Pure Integrity, he provides strategic and technical leadership in process safety, functional safety, and risk assessment, supporting major projects across Southeast Asia, the North Sea, West Africa, Brazil, and Australasia.
Education & Certificate
Bachelor’s Degree in Chemical Engineering
Universiti Teknologi PETRONAS (UTP) Certificate
Certified Functional Safety Engineer
(Safety Instrumented Systems) TÜV Rheinland
FAQ
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What is BowTie Analysis?
BowTie Analysis is a visual risk assessment method used to show the relationship between hazards, threats, top events, consequences & barriers.
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Why is BowTie Analysis important?
It helps organisations understand major accident risk clearly, identify critical barriers, and improve communication between technical and operational teams.
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What is a top event in BowTie Analysis?
A top event is the point where control over a hazard is lost. It sits at the centre of the BowTie diagram.
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When should BowTie Analysis be conducted?
BowTie Analysis is useful after HAZID, HAZOP, PHA, or major accident hazard studies, especially when organisations need clearer barrier visibility and risk communication.
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What are preventive and mitigative barriers?
Preventive barriers reduce the likelihood of the top event occurring. Mitigative barriers reduce the impact after the top event happens.
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Who should participate in a BowTie workshop?
Typical participants include process safety, operations, maintenance, engineering, HSE, inspection, reliability & asset integrity representatives.
Who We Work With
We have worked closely with many local and multi-national companies in Malaysia as well as overseas to fulfill their specific needs. Through close collaboration we have helped clients deliver safer, more reliable, and cost effective operations.
Strengthen Major Accident Barrier Management
Work with Pure Integrity to visualise hazards, identify barrier gaps & improve process safety risk control.
TUV Rheinland Partner | CIDB G4 Registered | HRD Corp Accredited