The paper presents an effective way of incorporating the human, organisational and management factors in order to improve integrity of offshore marine operations. The aim of the paper is to establish safety barriers and integrate human, organisational and management factors into these barriers and define performance shaping factors that could erode the barrier function. This can be achieved by using bow tie analysis. Furthermore, the quantification of the risk model, if required, can be achieved by direct application of human reliability methods for operational errors and by defining the failure rate multiplier based on the assessment of management and organisational characteristics.

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