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Hazard and Risk Assessment (HRAS)

Course details

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This course aims to:

  • teach you systematic approaches to hazard identification and risk assessment, including principles of risk reduction and ALARP;
  • covers the first half of the safety process in the system development lifecycle;
  • teach you predictive, target-setting techniques and should ideally be taken as a pair with System Safety Assessment (SSAS), which addresses concepts and techniques appropriate to the later stages of a development project.

By the end of this course you will have:

  • an understanding of the principles of hazard identification and assessment;
  • an initial ability to apply techniques such as Functional Failure Analysis and HAZOP;
  • an understanding of approaches to risk reduction;
  • an appreciation of common cause / common mode failure mechanisms, and their importance.

Who is the course for?

This course is suitable for:

  • practitioners across all domains including aerospace, military, railway, automotive, civil nuclear, civil maritime, medical devices, healthcare, and so on;
  • developers of equipment safety cases during design for software, hardware, procedures, systems and/or platforms;
  • developers of safety cases for operational safety and disposal;
  • reviewers of safety cases within an organisation or as an independent activity;
  • developers and reviewers of changes to existing safety-critical / safety-related equipment and operations;
  • project managers where development of a safety case is a significant element of projects they manage;
  • regulators of safety critical domains.


A basic understanding of system safety terminology and lifecycle via prior learning or industrial experience. It is useful for you to have taken our Foundations of System Safety Engineering course, but if you have not, please email us with your details so we can assess your suitability for taking this course.

How is the course taught?

The course takes place over one week at the University of York. This week consists of a mixture of lectures and practicals, but we expect you to put in around 30 hours of private study.

Over the week, there will be a series of lectures and a number of case studies. The case studies give you the chance to work through an example to reinforce your learning from the lectures. This is also a chance to gain other insights from the experience and knowledge of other delegates. You will also be able to call on the experience and knowledge of our specialised teaching staff during these sessions.  

The module ends with an assessed exercise, which you have the option of completing. It takes approximately 35 hours in addition to the scheduled teaching time and can be completed on or off site. All assessed exercises are open (so you won't take an exam in supervised conditions), and comprise a report, case study, or documented piece of software.

If you choose to take and pass your assessment, your results can count towards the completion of the MSc in Safety Critical Systems Engineering. Our MSc in Safety Critical Systems Engineering is an accredited course, recognised by both the BCS, the Chartered Institute for IT and the Institution of Engineering and Technology (IET) for the purposes of partial fulfilment of the educational requirement for CEng registration.


 Logo from BCS (Chartered Institute of IT) showing our accredited status


 IET Accredited programmes logo


Find out more about what this professional accreditation means.

Recommended reading

Kletz, T. HAZOP and HAZAN: Identifying and Assessing Process Industry Hazards Institution of Chemical Engineers 1992
Ericson, C.A Hazard Analysis Techniques for System Safety Wiley 2005
Stephans, R.A. and Talso W.W System Safety Analysis Handbook (2nd Ed) System Safety Society 1997
Ostrom, L.T. and Wilhelmsen, C.A. Risk Assessment Wiley 2012

Book your place

Book your place

Due to the Corvid-19 situation, teaching for the Autumn term will take place online with a combination of pre-recorded lectures and live exercises. The next HRAS instance will commence w/c 19th October 2020 and live exercises will take place w/c 2nd November 2020.

Before booking, please read our Booking Conditions (PDF , 104kb).

To book your place, please complete the booking form and payment form below and return to our Student & Academic Administration Team. Payment can be made online via credit/debit card

CPD Booking Form 2020/21 (MS Word , 70kb)

CPD Payment Form 2020-21 (MS Word , 65kb)

If you have any queries, please contact Heather Taylor, our course administrator, or call 01904 325536.

Image of HRAS Teaching

Excellent course presented with excellent level of knowledge.