Riskbased oversight with proactive barrier performance verification Emma
Risk-based oversight with proactive barrier performance verification Emma Verschoor – Product Manager CGE Risk Management Solutions International Cross-Safety Conference, Amsterdam 2018 1 Copyright © CGE Risk MS BV
Emma Verschoor Product Manager e. verschoor@cgerisk. com 2
All models are false, but some are useful “(…) the practical question is how wrong do they have to be to not be useful? ” George E. P. Box Science and Statistics (1976) Copyright © CGE Risk MS BV
Copyright © CGE Risk MS BV
Copyright © CGE Risk MS BV
Bowtie models Provide the right level of detail to facilitate understanding and risk based decision making, without oversimplifying. The right level of details depends on your goal. Copyright © CGE Risk MS BV
Fault tree & Event tree with barriers
Communicative version
3 questions 1. Do we understand what can go wrong? 2. Do we know what our systems are to prevent this happening? 3. Do we have the information to assure us they are working effectively? Copyright © CGE Risk MS BV
Bowtie in 8 steps 1. 2. 3. 4. 5. 6. 7. 8. Copyright © CGE Risk MS BV
Barrier thinking Copyright © CGE Risk MS BV
Hazard Losses Copyright © CGE Risk MS BV
Hazard Losses Barriers Copyright © CGE Risk MS BV
Equipment failure Poor planning Fatigue Etc. Copyright © CGE Risk MS BV
History 1979 1988 90’s 00’s Copyright © CGE Risk MS BV
Bowtie today Oil & Gas Aviation Energy Chemical Mining Medical Financial Government Construction Cyber risk
Barrier-based auditing Easy to spot weak spots Results focus on risks, not categories Intuitive display
Traditional Audit Time scheduling Work procedures Maintenance Training & Competency Management system
Barrier-based auditing Time scheduling Work procedures Maintenance Training & Competency Management system
Barrier-based audits Q 01: (Maintenance) “Are the extinguishers well maintained and filled? ” Q 02: (Training) “Is the personnel capable of using the equipment? ” Q 03: (Procedures) “Is the personnel aware of where to find the device? ”
Audit approaches Traditional auditing Maintenance Training Compliance 95% 90% Barrier-based auditing
Criticality Threat importance Number of barriers Barrier independence
Survey scope using Bowties All questions for behavioral barriers All questions for driver All questions for critical barriers
Zoom-level Point in time
End goal
Case study: Fisheries and Oceans Canada
ISO 31000: 2018 28
The risk management process 29
Addressing uncertainties Detect Decide Act Implemented Partially implemented
3 questions 1. Do we understand what can go wrong? 2. Do we know what our systems are to prevent this happening? 3. Do we have the information to assure us they are working effectively?
- Slides: 32