SCSC - The Safety-Critical Systems Club

Latest News

Data Safety Seminar

Data Safety SeminarUPCOMING: 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" is an opportunity to hear about the issues data can cause in safety systems and look at developments in the area. It will be 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.


SCSC Survey

SCSC survey

Please take a moment to complete this short survey on the Safety-Critical Systems Club to help us move forward. The survey has been designed with all systems safety professionals in mind and you don't need to be a member of the club to do it.

There is a prize draw for all those who complete the survey and leave contact details.
Prizes include a free day at SSS'20, free attendance at a 1-day SCSC event of your choosing (e.g. seminar, tutorial) and free annual memberships.


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
November 14, 2019 SCSC Seminar  Data Safety Evolution  
London, UK    

December 5, 2019 SCSC Seminar  Creating and Maintaining an Effective Safety Culture  
London, UK    

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    

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

SCSC Working group meetings

  Date  Event  Title
November 14, 2019 SCSC DSIWG#48  SCSC Data Safety Initiative Working Group meeting #48  
London, UK    

November 18, 2019 SCSC ACWG #10  Assurance Case Working Group #10  

November 20, 2019 SCSC SAWG#18  SCSC Service Assurance Working Group meeting #18  
Thales, Green Park, Reading    

Other events

  Date  Event  Title
November 12 - 13, 2019 AI4SE 2019  First Workshop on the application of Artificial Intelligence for Systems Engineering  
University of Madrid Leganes (Madrid), Spain    

November 19 - 20, 2019 Conference  ATI Conference 2019  
The Vox Centre, Birmingham.   The Aerospace Technology Institute will be hosting its second conference at the VOX Centre, Resorts World, Birmingham. 

November 21, 2019 Seminar  LMS/BCS-FACS Evening Seminar: 'When to Trust a Self-Driving Car...'  
London, UK    


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SCSC 06-03-2018 [V4e]