Our Stories

A collection of our Blogs, Articles, and Whitepapers

Designing Operator Tasks to Minimize the Impact of Heuristics and Biases

This paper proposes a combined approach of discussing the cognitive psychology behind System 1 and System 2 thinking, the types of heuristic

Improving the Safety Instrumented System (SIS) Design Process with Graphic Diagrams

Examples of the different types of graphic diagrams, methods in which the diagrams were utilized, and the benefits that each provided in th

Lessons Learned on SIL Verification and SIS Conceptual Design

by Richard E. Hanner & Ravneet Singh There are many critical activities and decisions that take place prior to and during the Safety...

Methodologies in Reducing Systematic Failures of Wired IPLs

by Richard E. Hanner & Tab Vestal The history of high consequence incidents in industry reveals that most accidents were the result of...

IPL/CMS- Integrity Management of Non-SIS Independent Protection Layers after the LOPA

This paper discusses the identification, selection, implementation and management of Non-SIF IPLs through the process lifecycle.