Modifications to the Decision Ladder to match frontline workers' critical decision making

摘要

The Decision Ladder (DL) Template is often used to understand workers' reasoning processes. In high-hazard industries such as oil refining, frontline workers' decisions are crucial to managing abnormal situations and preventing unwanted events. This paper describes research undertaken-using the DL Template-to analyze workers' responses to abnormal situations as elicited during Critical Decision Method interviews. The paper firstly describes the evolution DL Template since Rasmussen's original writings. It then describes challenges encountered when using the traditional DL Template to analyze interview responses. A modified DL Template is proposed that provides a more detailed top portion of the template to allow more explicit analysis of how knowledge-based reasoning might be used when addressing abnormal, safety-critical situations.