Online Bowtie method program

In this practical online course you will learn how to do risk analysis using the bowtie method. A thorough explanation of the method will be combined with hands-on exercises and additional online resources. You will develop a deep understanding of the bowtie method and get the skills you need to apply bowtie in your organisation. The course is run by renowned bowtie experts.

Self paced

Complete the program when you have time with weekly online sessions for you to join.

Renowned experts

The course is taught by renowned bowtie experts.

Practical exercises

Work on assignments that are directly useful to your own organisation.

Personal attention

Because groups are kept small, there is lots of room for personal attention.

Learn from your peers

People from multiple industries join this course, providing a rich peer learning experience.

Exclusive content

The program includes a year long membership with access to all resources and new content.

Why bowties?

  • Bowties make risk communication easy
  • Bowties help you make risk based decisions
  • Bowties will get more value out of a risk assessment
  • Bowties can visualise the performance of your safety barriers

What is a bowtie?

Bowties are visual risk assessment diagrams. They give a graphical summary of how major risks are controlled. They are intuitive to use and help give answers to questions like: which barriers do we have in place and who is responsible for them? What do we do to maintain these barriers and which documentation do we have to support this?


Week 1
  • Introduction to the bowtie method
  • Introduction to the BowTieXP software
Week 2
  • Add metadata to the bowtie
  • Assess barrier effectiveness
  • Prioritise barriers
  • Link bowties to your management systems
Week 3
  • Establish the goal for bowtie in your organisation
  • Use the bowtie to demonstrate ALARP
  • Write a bowtie protocol
Week 4
  • Practical advice on how to achieve your bowtie goals
  • How to run a bowtie project
  • Examples of successful projects


The program runs in the spring and fall. The four sessions in the program are repeated every month. Every week has a morning and an afternoon slot.

  • The morning slot is 09:00 - 12:00 CET.
  • The afternoon slot is 14:00 - 17:00 CET.

Every season, you have three months to complete the four sessions to receive an official certificate. You can choose to spread the program across multiple months, or complete the program in a month by attending weekly.

Spring schedule 2021

Week 1 April 1 May 6 June 3
Week 2 April 8 May 13 June 10
Week 3 April 15 May 20 June 17
Week 4 April 22 May 27 June 24

Fall schedule 2021

Week 1 September 2 October 7 November 4
Week 2 September 9 October 14 November 11
Week 3 September 16 October 21 November 18
Week 4 September 23 October 28 November 25



This includes 3 months access to complete the program and access to all other available resources for a year. Request your volume discount if you want to sign up multiple attendees.

Who is this course for?

This course is for people looking for a deeper, more structured understanding of the bowtie method.

Who we are

This course is developed by Sliceberg. Sliceberg is a cooperation between Slice and Bergwerff Services. Sliceberg delivers risk management consultancy with over 2 decades of experience in high hazard industries such as energy and aviation. We connect data to meaningful risk-based decision making. With a background in cognitive psychology, we approach risk management from a behavioural as well as a technical perspective.