SCSC - Group: Covid-19 working Group

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SCSC Covid-19 Working Group

Contact Peter Ladkin (ladkin@causalis.comto take part in meetings.

No slides produced for 20th meeting, held 29/10/20

Slides from 19th meeting, held 15/10/20

Slides from 18th meeting, held 01/10/20

Slides from 17th meeting, held 17/09/20

Slides from 16th meeting, held 27/08/20

Slides from 15th meeting, held 13/08/20

Slides from 14th meeting, held 23/07/20

Slides from 13th meeting, held 08/07/20

Slides from 12th meeting, held 25/06/20

Slides from 11th meeting, held 18/06/20

Slides from 10th meeting, held 11/06/20

Slides from 9th meeting, held 04/06/20

Slides from 8th meeting held 29/05/20

Slides from 7th meeting held 21/05/20

Slides from 6th meeting held 14/05/20

Slides from 5th meeting held 07/05/20

Slides from 4th meeting held 30/04/20

Slides from 3rd meeting held 23/04/20

Slides from 2nd meeting held 16/04/20

Slides from 1st meeting held 09/04/20


These are the group pages for the SCSC Covid-19 Working Group. The group is involved with discussion, analysis and assistance related to the Coronavirus.

This group meets remotely to see what a systems and assurance view of the situation brings. We will also start a discussion group on the SCSC website for thoughts and ideas related to what we do.

We are all experienced engineers, used to making reasoned arguments about safety. We can use our considerable technical expertise to the problem and find and assure appropriate solutions.

Please keep monitoring the SCSC website ( and the SCSC LinkedIn group ( for more information.

News and Links

Peter Ladkin - Ivermectin and Covid-19

Peter Ladkin - Bielefeld Figures for the Third Wave: 2021-03-06 to 2021-06-18

Peter Ladkin - The Second Wave of Covid-19 in Bielefeld: 2020-09-05 to 2021-03-06

Peter Ladkin - Observations on the Foundations of Infodemiology

Peter Ladkin - Engineering Contributions

Nick Hales - Facebook post: Comparison with other Viruses

IET Event: COVID-19: lessons learnt with an international lens

Coronavirus: England's test and trace programme 'breaks GDPR data law'

COVID Tracker Ireland app one of Linux Foundation Public Health's first open source projects

IET Event: Responding to COVID-19: healthy living and housing

CIEHF COVID-19 Human Factors Response

CIEHF Achieving Sustainable Change: Capturing Lessons from COVID-19

Lack of local Covid-19 testing data hinders UK’s outbreak response

The Tönnies outbreak

What went wrong? Corona and the World after the Full Stop

Coronavirus: What is the true death toll of the pandemic?

Precis of "The Fatal Strain"

Assurance Case Guidance Paper: Dialectic Argumentation

Two papers on the security aspects of the NHS contact tracing app: one two

New guidance on safe working during the COVID-19 pandemic (BSI)

BMJ Article on Government Response in the UK

Open Data Resources

Wikipedia pages

A Doctor's Pragmatic View from the US

Science Magazine: How and Why Does Covid-19 Spread?

IET Talk coming up: COVID-19 and Tracing Apps – Where will this end?

Nick Hales notes on the BBC Horizon Programme on Covid-19

RAE Pandemic Preparedness Progromme

UK SAGE (Scientific Advisory Group for Emergencies) Committee Membership (Full) (Edited)

Enhancing Covid-19 Decision-Making by Creating an Assurance Case for Simulation Models

NHS Covid-19 App Code on Github

Nature Article on Covid-19

Code Review of Imperial College Model

Issues Developing Contact Tracing Apps

The SIR Model for Spread of Disease - Introduction

BCS Recommendations for Contact Tracing App

Germ Defence Advice

Coronavirus Explained

Predicting the Pandemic (IET)

Dangers of New Ventilators

Paper on reliability of Covid-19 modelling software from Harold Thimbleby

Notes from Peter Ladkin

Notes on COVID-19: Part 30: 2021-11-01 to 2022-02-28

Notes on COVID-19: Part 29: 2021-09-01 to 2021-10-31

Notes on COVID-19: Part 28: 2021-08-01 to 2021-08-31

Notes on COVID-19: Part 27: 2021-06-19 to 2021-07-31

Notes on COVID-19: Part 26: 2021-04-16 to 2021-06-18

Notes on COVID-19: Part 25: 2021-03-25 to 2021-04-15

Notes on COVID-19: Part 24: 2021-03-01 to 2021-03-24

Notes on COVID-19: Part 23: 2021-02-01 to 2021-02-28

Notes on COVID-19: Part 22: 2021-01-01 to 2021-01-31

Notes on COVID-19: Part 21: 2020-12-03 to 2020-12-31

Notes on COVID-19: Part 20: 2020-10-30 to 2020-12-02

Notes on COVID-19: Part 19:2020-10-16 to 2020-10-29

Notes on COVID-19: Part 18: 2020-10-01 to 2020-10-15

Notes on COVID-19: Part 17: 2020-09-10 to 2020-09-30

Notes on COVID-19: Part 16: 2020-08-28 to 2020-09-09

Notes on COVID-19: Part 15: 2020-08-11 to 2020-08-27

Notes on COVID-19: Part 14:2020-07-23 to 2020-08-10

Notes on COVID-19: Part 13: 2020-07-09 to 2020-07-22

Notes on COVID-19: Part 12: 2020-07-01 to 2020-07-08

Notes on COVID-19: Part 11: 2020-06-18 to 2020-06-30 

Notes on COVID-19: Part 10: 2020-06-08 to 2020-06-17

Notes on COVID-19: Part 9: 2020-06-01 to 2020-06-07

Notes on COVID-19: Part 8: 2020-05-24 to 2020-05-31

Notes on COVID-19: Part 7: 2020-05-12 to 2020-05-23

Notes on COVID-19: Part 6: 2020-05-01 to 2020-05-11

Notes on COVID-19: Part 5: 2020-04-24 to 2020-04-xx

Notes on COVID-19: Part 4: 2020-04-16 to 2020-04-23

Notes on COVID-19: Part 3: 2020-04-01 to 2020-04-15

Notes on COVID-19: Part 2: 2020-03-21 to 2020-03-31

Notes on COVID-19: Part 1: 2020-02-24 to 2020-03-20


A Hard Constraint on the Efficacy of Serological Tests


Human Factors in the Design and Operation of Ventilators for Covid-19

LinkedIn Article Text

Systems Safety in the Time of Coronavirus

The Safety Critical Systems Club continues in these difficult times. Events have been postponed but these will be re-instated as soon as possible. The Working Groups, including new groups for Ontology, Multicore and Safety Culture, are using remote working (see The Club web site ( and newsletter continue as normal.

We should consider helping the international effort against the virus. We are all experienced engineers, used to dealing with safety risk. Some of us may be called upon to help with medical equipment such as ventilators. Others may be involved in assessing new safety-related situations. We can bring our expert technical expertise to the problem and find and assure appropriate solutions. 

The SCSC is starting a new Working Group for Covid-19 discussion, analysis and assistance. If you are interested please contact This group will meet remotely and see what a systems and assurance view of the situation can bring, and what assistance can be provided to others. We will also start a discussion group on the SCSC website.

Please keep monitoring the SCSC website ( See also:


STAMP Hierarchical Control Structure Model: Overview

Simon Whiteley has done good work on this - see below:

Initial high-level sketch

John Thomas video:


Ansys Links

Some highly relevant simulations here Covid-19 Simulation Solutions and also general healthcare solutions


Pandemic System Dynamics Model

Pandemic Systems of Systems Framework

Pandemic Systems of Systems Framework Article Draft

Pandemic System Dynamics Model - Correa de Saa (version 1.1) 04-2020


Relationships to Data Safety Guidance

Data Safety Guidance: Appendix A 4 plus 1 principles and Objectives

Data Properties Table

The Data Guidance process as applied to Covid 19

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