Article ID Journal Published Year Pages File Type
5019460 Reliability Engineering & System Safety 2017 26 Pages PDF
Abstract
Risk assessments are performed to support decision-making, which could have a long-term impact, for example decisions related to the use of different techniques to plug and abandon an old oil well. The uncertainties related to potential future events and their consequences are in this case often large, which may lead to the introduction of uncertain assumptions and thus make it difficult to ensure that the decision made also provides an acceptable risk level for the future. Recently, a scheme for the systematic treatment of uncertain assumptions in (semi-)quantitative risk assessments was proposed. The suggested scheme focused on how a risk analyst can treat and reflect uncertainties related to the assumptions underlying such a risk assessment. In the present paper, we extend this scheme to provide guidance also to risk managers on how to follow up assumptions after the risk assessment has been performed and the decision made. The aim is to provide a systematic scheme for the development of strategies, motivated by so-called assumption-based planning, that risk managers can use to ensure an acceptable long-term risk level. An example is included to illustrate the use of the suggested scheme.
Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
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