The Risk Assessment Institute's Bowtie Methodology video offers a brief overview of bowtie methodology, which is a tool used to visually map and analyze causal relationships in complex workplace risks.
Bowtie diagrams are a key element of the methodology, and OSH professionals can use these diagrams to identify and communicate about a hazard, establish control measures and determine whether those measures reduce risk. As the video explains, bowtie methodology is essentially a combination of fault tree and event tree analysis that provides effective way to analyze pathways of risk, from hazards to outcomes to controls.
The video reviews the key steps of using a bowtie diagram to perform a qualitative and semi-quantitative risk analysis, and describes how to apply the hierarchy of controls to reduce risks.
The video is the newest in the institute's Risk Assessment in the Real World series, which also includes videos on serious injury and fatality prevention, hierarchy of controls, risk matrixes and other topics.
Originally published March 8, 2017.