What-CHAZOP-macallit? | exida

exida Recorded Webinars


Recording Date: October 2019

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.

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About the Presenter:

Patrick O'Brien

Patrick O’Brien Patrick O’Brien is a Safety and Cybersecurity Engineer at exida LLC, where he performs numerous end user focused training, consulting, and support services for industrial facilities in functional safety and cybersecurity. In addition to his consulting work, he has assisted with product development through testing, application specification, and the creation of user tutorials for the exSILentia® software platform, including significant work with the exida CyberPHAx™ and CyberSL tools. He has assisted with the development of exida training material and other knowledge-based content. He also helped develop cybersecurity projects through technical support and the translation of cybersecurity documents between English and German. Mr. O’Brien recently graduated from the Pennsylvania State University with a Bachelor of Science in Chemical Engineering and a Bachelor of Science in German Language and Culture.