A Control Hazard and Operability Study (CHAZOP) is a procedure for analyzing the safety and reliability of existing or planned Control and Computer systems. A CHAZOP can be performed to support the overall process hazard analysis or to determine the reliability of the control system. Additionally, the CHAZOP represents a key opportunity for aligning functional safety and cybersecurity objectives. By pairing the CHAZOP with a cybersecurity High-Level Risk Assessment (HLRA) the safety, reliability, and security of the control system can be evaluated o support strategic decision making. This webinar will provide a general overview of the CHAZOP and HLRA methodologies along with examples that demonstrate the various approaches that can be taken and the advantages of aligning the CHAZOP study with a HLRA.
exida Recorded Webinars
What-CHAZOP-macallit?
Recording Date: October 2019
About the Presenter:
Patrick O'Brien
Patrick O’Brien is the Assistant Director of Engineering at exida, LLC, where he helps lead a team of engineers in delivering functional safety, cybersecurity, and alarm management services. He has led cybersecurity risk assessments, training courses, and other lifecycle activities for many different applications, including oil and gas, specialty chemical, critical infrastructure, machinery, and robotics. In addition to his cybersecurity role, he also provides consulting services in the areas of process safety, functional safety, and machine safety.
He is a coauthor of Implementing IEC 62443: A Pragmatic Approach to Cybersecurity and the principal author of the CCPS concept book Managing Cybersecurity in the Process Industries – A Risk-based Approach. Patrick represents exida on the International Society of Automation Global Cybersecurity Alliance (ISAGCA). Mr. O’Brien graduated from the Pennsylvania State University with a Bachelor of Science in Chemical Engineering and a Bachelor of Science in German Language and Culture.