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thumbnail of Circles of Influence – How do you arrange 200 Performance Shaping Factors

Author
Adrian Wheatley
Abstract
The Circles of Influence model is a method of organising Performance Shaping Factors that encourages the user to consider the bi-directional way in which many variables might interact to influence human performance. The model is presented as a tool to aid Ergonomics and Human Factors practitioners when undertaking activities such as project and task scoping, requirements capture, risk assessment, and Human Reliability Assessment.