SCSC - The Safety-Critical Systems Club

Latest Club News

Safety-Critical Systems Symposium 2020

SSS'20 Poster session

SSS'20 is to be held on 11-13th Feb 2020 in York, UK with a fantastic line-up of keynote speakers, submitted papers, posters, working group reports and more. Tim Kelly will give the after-dinner speech. There will also be a set of social events making the most of the location.

Bookings and further information at:


SCSC Survey 2019 Winners

Many thanks to all those who completed the SCSC Survey 2019. The following members won the prizes in the draw:

Steve Billett - 1 day at SSS including accommodation.
Steve heads up the systems and software business unit within Ebeni - a niche engineering consultancy that support clients in developing high integrity systems in markets that demand the highest levels of rigour and expertise.,

John Hanson - 1 free seminar or tutorial of your choice.  
John is a system safety specialist at BAE Systems, Warton, working on future programmes. He is also a STEM volunteer, working with local schools.

Graham Sutherland, Ray Matthews and Waleed Chaudhry - Free annual membership.

Many congratulations to all our winners!


SCSC Seminar on Creating and Maintaining an Effective Safety Culture

Selected slides from the event are now available on the Programme tab.

This was held on 5th December 2019 in London. This event featured 7 speakers from diverse sectors explaining how to create, how to measure, and importantly, how to maintain a strong and effective safety culture within an organisation. Full details at:



Lloyds Register Foundation and the Royal Academy of Engineering have got together for a programme called "Safer Complex Systems".

They are seeking case studies of novel safe systems approaches, and are offering significant funding to develop the work. See this link (the deadline has been extended).

SCSC Survey

SCSC survey

The survey is now closed for 2019.




Data Safety Seminar

Data Safety SeminarSelected slides from this event are now available.

Data can directly cause systems to behave anomalously (e.g. sensor data in the Boeing 737 MAX) or it can cause humans to take inappropriate actions leading to harm. On November 14th in London the event "Data Safety Evolution" was an opportunity to hear about the issues data can cause in safety systems and look at developments in the area. It was useful for safety engineers and safety managers, across any sector that uses data in a safety context, i.e. most of us! Full details at:


Invitation to comment on Draft IEC Technical Specification addressing Formal Methods

SCSC members have the opportunity to contribute to the standards making process by responding to Invitation to Review selected drafts of IEC standards, Technical Specifications (TS) and Technical Reports (TR). This opportunity is only available to SCSC members, who must be logged in to access the draft document. The first of these is IEC TS 61508-3-2 ED1: Requirements and Guidance in the use of mathematical and logical techniques for establishing exact properties of software and its documentation. Deadline for Comments: 10/11/2019. The instructions for comment can be found at:


Steering Group Chair

SCSC Steering GroupFollowing Tim Kelly's career change there have been some changes to Steering Group.

I am very pleased to confirm that Roger Rivett's appointment as Steering Group Chair has been ratified by the meeting of the Steering Group today. Jane Fenn is also appointed as Roger's deputy.


New Newsletter Editor

SCSC NewsletterI am really pleased to announce that Paul Hampton has agreed to take over from Katrina Attwood as Newsletter Editor.

Paul has lots of experience in publishing, web sites and of course is a long-term supporter of the SCSC and many-time presenter at SSS.

Please contact Paul if you would like to publish an article in the newsletter at


Safety-Critical Systems Symposium 2020 - Call for Poster Abstracts

SSS'20 Poster session

The call for poster abstracts for SSS'20 (11-13th Feb 2020 in York, UK) is now closed. There will be two poster sessions at SSS'20; for those who have not done one before posters are a great way to present and discuss new work in a more informal setting.


Tutorial on Safety Assurance of Autonomy and Machine Learning

This 1-day tutorial was held on September 26th 2019 in London. It included speakers from the AAIP at the University of York and from industry. It considered the assurance of systems that employ Autonomy and Machine Learning; critically important for future air, sea and road vehicles. Full details at:

Learning from Accident Investigations

This seminar on June 13th 2019 in London considered what can be learnt from formal accident investigations, including the process, people and the detailed accident reports that are produced in many sectors. Full information, including selected slides at:

Safety-Critical Systems Symposium 2020 - Call for Abstracts

The call for abstracts for SSS'20 (11-13th Feb 2020 in York, UK) has now closed.

Seminar - Evolution of Assurance Case Practice

On April 4th in London, the SCSC held a 1-day seminar on the future of assurance and safety case practice. This looked at new thinking in the automotive and civil aviation sectors and new developments such as SACM and Dialectic arguments. It also examined what a safety argument for an autonomous system might look like. Selected slides are now available on the event page.

Safety-Critical Systems Symposium SSS'19

The 27th Safety-Critical Systems Symposium (SSS'19) was held in Bristol, UK at the Bristol Marriott Royal Hotel (5th to 7th February 2019). #SSS19
The proceedings from the event are available at SCSC-150. Selected slides from this event are being made available under Past Events, SSS'19 as they become available.

Data Safety Guidance

The PDF of the new Data Safety Guidance document (V3.1) SCSC-127D is available to buy in hardcopy from Amazon or for free download. During 2018, feedback was received from four data safety courses and the application of version 3.0 of the Guidance to a real aviation problem, involving the safety of Unmanned Air Vehicles. As a result of this feedback, a number of clarifications and usability enhancements have been incorporated within the document. However, all paragraph numbers remain consistent with version 3.0. This release should therefore not be seen as a new version of the Guidance, but rather as an improved version of 3.0.

Autonomous Systems Guidance

The Safety of Autonomous Systems Working Group [SASWG] has published a document representing the first step towards establishing Recognised Good Practice for safety assurance of autonomous systems.  This document, Safety Assurance Objectives for Autonomous Systems, is available at SCSC-153.

Seminar - COTS, Legacy and Reuse

This seminar was held on 6th December in London and featured seven talks from acknowledged experts in the reuse of existing components, be they COTS, SOUP or other legacy items when an assurance claim for the overall system or service must be made.

Selected slides from this event are now available.

Slides from Past Events
Please note that slides from events (seminars, tutorials, etc.) are usually available on the event page after the event has taken place.

To find these navigate to Past Events.

Next Club events

  Date  Event  Title
February 11 - 13, 2020 SCSC Symposium  Safety-Critical Systems Symposium (SSS'20)  
York, UK    

April 30, 2020 SCSC Seminar  Safe Use of Multi-Core and Manycore Processors  
London, UK    

June 11, 2020 SCSC Seminar  New Safety Analysis Techniques  
London, UK    

September 17, 2020 SCSC Tutorial  Combining Safety With Security  
London, UK    

December 3, 2020 SCSC Seminar  Management and Oversight of Complex Systems  
London, UK    

SCSC Working group meetings

  Date  Event  Title
January 22, 2020 SCSC SAWG#20  SCSC Service Assurance Working Group meeting #20  
Ebeni, Corsham    

February 10, 2020 SCSC ACWG#11  SCSC Assurance Cases Working Group Meeting #11  
York, UK    

March 11, 2020 SCSC SASWG  SCSC Safety of Autonomous Systems Working Group Meeting  
Bristol, UK    

May 18, 2020 SCSC ACWG#12  SCSC Assurance Cases Working Group Meeting #12  
Leonardo offices, London    

Other events

  Date  Event  Title
March 16 - 20, 2020 Course  Introduction to System Safety Engineering and Management 2020  
Crowne Plaza, Burg 10, 8000 Brugge, Belgium    

March 23 - 26, 2020 Workshop  STAMP Workshop  
MIT, Massachusetts, USA    

March 26, 2020 Conference  Nuclear engineering for safety, control and security  
Bristol, UK    


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