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Risk Management Using Bowties


Save 10% on public training courses scheduled through December 31, 2020. This discount cannot be combined with any other offer(s). See also 15% Team Discount.

Effective risk management requires a thorough understanding of the accident pathways linking threats to potentially catastrophic consequences and the measures implemented to prevent this happening. Bowtie diagrams provide a simple visualization of the relationships and the barriers preventing the catastrophic consequences. Bowtie diagrams are easy to interpret unlike the complex and/or numerical results from other risk assessment methods (e.g. PHA, QRA, LOPA) in a way that is easier for non-experts, workforce, engineers and managers to understand.

This course introduces the Bowtie Method, works through the steps involved in identifying process safety layers and then leads to the hands-on construction of bowties both on paper and using ABS Group's THESIS BowTie™ software. Attendees also receive a 3-month trial license of THESIS.

In 2018 the CCPS published the concept book "Bow Tie Risk Management" together with the UK's Energy Institute. The book provides clear guidelines on the terminology to be used in bowties and the approaches to be followed in developing and subsequently maintaining the resultant bowties. ABS Group was actively involved on the committee writing the book and this course is fully consistent with all aspects of the book.


Who Should Attend this course?
  • Personnel who have at least 5 years of experience and are familiar with safety/risk concepts
  • Participants are usually engineers, inspectors, and risk and safety personnel
what will i learn in this course?
  • Fundamentals of the Bowtie Methodology
  • How to correctly apply Bowties in managing risks
Duration: 2 Days

Dates & Locations

No courses scheduled at this time. Please view our course calendar for other relevant courses.



Day 1: 8:00 am to 5:00 pm
  • Introduction to Risk and the concept of barriers in major accidents
  • What is the Bowtie Concept?
  • Construction of Bowties from Identified Major Accident Hazard Scenarios
  • How to identify threats and estimate consequences
  • Identification of independent and valid barriers
Day 2: 8:00 am to 5:00 pm
  • Identification of safety Critical Elements (SCEs)
  • Barrier effectiveness evaluation and linking them to Process Safety Performance Indicators (PSPIs) and the HSE Management System
  • HAZOPs to BowTies
  • Introduction to LOPA within THESIS linking key threat/consequence pairs
  • Practical sessions using THESIS BowTie™


Dr. Mark Manton - Principal Engineer, ABS Consulting

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