Bowtie Analysis and Barrier-Based Risk Management

Topic Safety

CPD Hours 14*

Price IChemE member £720 + VAT, non-member £864 + VAT


Live online course – from 12 July 2022, 14:00–17:00 BST.

The bowtie methodology is designed to provide the right level of detail to facilitate understanding and risk-based decision making, without oversimplifying a process.

This online course will help you better understand the methodology and how to conduct a bowtie analysis effectively in the management of process safety and environmental & asset integrity scenarios. It covers when and why you should use the technique, as well as its strengths and limitations. You will also explore other barrier-based risk management approaches and similarities with HAZOP/PHA studies.

The course covers primary and second uses of bowties, the potential benefits of adding metadata to bowties, the significance of barrier management and the relationship with operations and maintenance activities and the role that barrier failure has played in familiar incidents. It will also help you to develop an understanding of human and organisational factors in bowties.

Attendees will be able to participate in practical online exercises where you can develop your own basic bowtie. The course aligns with current industry guidance. It is platform neutral and does not favour any specific software.

Teaching will be delivered via two live sessions (approx. 2-3 hours in length each) and pre-recorded video content for independent study.

An e-certificate will be issued to participants who attend all modules and pass an end-of-course assessment. Please note that you must attend all modules to receive the certificate.

Learning outcomes

By the end of this course you will understand how to:

  • when and why to use bowtie analysis
  • individual bowtie components and how they are assembled to illustrate a scenario
  • how to apply bowtie methodology including the process for developing bowties in a sequential, logical order
  • how to facilitate and plan bowtie workshops
  • bowtie analysis’ inter-dependencies with other barrier-based risk management techniques.

Who will benefit

Anyone with a basic knowledge of the bowtie methodology but is seeking to become more expert in its application. The course would particularly benefit management, engineering and operations/maintenance personnel with responsibility for managing hazards and implementing/sustaining risk control measures.

Course outline

  • Bowtie concepts and risk management
  • The bowtie model
  • Bowtie development and workshops
  • Use of bowties
  • Barrier management
  • Human and organisational factors in bowties
  • Advanced bowties


Module 1

Tuesday 12 July 2022, 14:00–17:00 BST.

Module 2

Wednesday 13 July 2022, 14:00–17:00 BST.

Pre-recorded video content will be provided for independent study before/between modules.

Not available then? Register your interest in future dates.


  • IChemE member: £720 + VAT
  • Non-member: £864 + VAT


Discounts are available to companies booking more than one place:

  • 2 places–10% discount
  • 3 places–15% discount
  • 4 or more places–20% discount.

Bookings must be made at the same time to receive the discount.


Modules will be delivered via Microsoft Teams. If you don't already have this installed, you can join as a guest in order to access the training. We'll share information about how to do this after you've registered.

Train your team

This course can be delivered to corporate teams, either on-site or online. Content can be tailored to your specific requirements, and this could be a cost-effective option if you have several people requiring the training. To find out more and request a quotation, visit our in-company training page.

* CPD hours should be used as an approximate guide and will vary depending on the preferred approach of the delegate and to what extent additional learning is completed.

Contact Phone +44 (0)1788 534496

Contact Email

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Aubrey Thyer


Aubrey Thyer

Aubrey is an investigations and safety specialist with SBM Offshore and Director of his own independent health & safety consultancy. He has over 30 years’ experience of conducting fire safety studies and regulatory compliance inspections around the world and in the development and application of regulations and international or company standards.

He worked at the Health and Safety Executive in the UK for for 25 years, where he was Principal Inspector of Health & Safety in the Offshore Fire & Explosion team, with direct responsibility for the management of a team of five inspectors covering fire, explosion and QRA issues for all UK offshore installations holding safety cases, along with the management of all inspections, investigations and assessments involving these topics.

Prior to this, he was a Principal Scientist and Head of the Health and Safety Laboratory's Hazardous Substances Team within the Process Safety Unit, where he managed a team of eight specialists covering fire and explosion issues and fire protection measures, the assessment of COMAH (SEVESO) safety reports, process safety issues, reaction hazards, chemical classification and wider fire & explosion issues.

Aubrey is an IChemE Member and a registered Professional Process Safety engineer.

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