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- Influence_diagrams_approach abstract "Influence Diagrams Approach (IDA) is a technique used in the field of Human reliability Assessment (HRA), for the purposes of evaluating the probability of a human error occurring throughout the completion of a specific task. From such analyses measures can then be taken to reduce the likelihood of errors occurring within a system and therefore lead to an improvement in the overall levels of safety. There exist three primary reasons for conducting an HRA; error identification, error quantification and error reduction. As there exist a number of techniques used for such purposes, they can be split into one of two classifications; first generation techniques and second generation techniques. First generation techniques work on the basis of the simple dichotomy of ‘fits/doesn’t fit’ in the matching of the error situation in context with related error identification and quantification and second generation techniques are more theory based in their assessment and quantification of errors. ‘HRA techniques have been utilised in a range of industries including healthcare, engineering, nuclear, transportation and business sector; each technique has varying uses within different disciplines.An Influence diagram(ID) is essentially a graphical representation of the probabilistic interdependence between Performance Shaping Factors (PSFs), factors which pose a likelihood of influencing the success or failure of the performance of a task. The approach originates from the field of decision analysis and uses expert judgement in its formulations. It is dependent upon the principal of human reliability and results from the combination of factors such as organisational and individual factors, which in turn combine to provide an overall influence. There exists a chain of influences in which each successive level affects the next. The role of the ID is to depict these influences and the nature of the interrelationships in a more comprehensible format. In this way, the diagram may be used to represent the shared beliefs of a group of experts on the outcome of a particular action and the factors that may or may not influence that outcome. For each of the identified influences quantitative values are calculated, which are then used to derive final Human Error Probability (HEP) estimates.".
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- Influence_diagrams_approach wikiPageWikiLink Absolute_probability_judgement.
- Influence_diagrams_approach wikiPageWikiLink Category:Risk.
- Influence_diagrams_approach wikiPageWikiLink Decision_analysis.
- Influence_diagrams_approach wikiPageWikiLink Engineering.
- Influence_diagrams_approach wikiPageWikiLink File:HRA_Influence_Diagram.jpg.
- Influence_diagrams_approach wikiPageWikiLink Health_care.
- Influence_diagrams_approach wikiPageWikiLink Healthcare.
- Influence_diagrams_approach wikiPageWikiLink Human_reliability.
- Influence_diagrams_approach wikiPageWikiLink Influence_diagram.
- Influence_diagrams_approach wikiPageWikiLink Interdependence.
- Influence_diagrams_approach wikiPageWikiLink Qualitative_data.
- Influence_diagrams_approach wikiPageWikiLink Qualitative_property.
- Influence_diagrams_approach wikiPageWikiLink Sensitivity_analysis.
- Influence_diagrams_approach wikiPageWikiLinkText "Influence diagrams approach".
- Influence_diagrams_approach hasPhotoCollection Influence_diagrams_approach.
- Influence_diagrams_approach subject Category:Risk.
- Influence_diagrams_approach hypernym Technique.
- Influence_diagrams_approach type Software.
- Influence_diagrams_approach comment "Influence Diagrams Approach (IDA) is a technique used in the field of Human reliability Assessment (HRA), for the purposes of evaluating the probability of a human error occurring throughout the completion of a specific task. From such analyses measures can then be taken to reduce the likelihood of errors occurring within a system and therefore lead to an improvement in the overall levels of safety.".
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