Comparing a multi-linear (STEP) and systemic (FRAM) method for accident analysis

A Herrera, INorwegian University Science and Technology NTNU,Department of Production and Quality Engineering, Norwegian University of Science and Technology, Trondheim, Norway (författare)

Accident models and analysis methods affect what accident investigators look for, which contributory factors are found, and which recommendations are issued. This paper contrasts the Sequentially Timed Events Plotting (STEP) method and the Functional Resonance Analysis Method (FRAM) for accident analysis and modelling. The main issue addressed in this paper is the comparison of the established multi-linear method STEP with the new systemic method FRAM and which new insights the latter provides for accident analysis in comparison to the former established multi-linear method. Since STEP and FRAM are based on a different understandings of the nature of accidents, the comparison of the methods focuses on what we can learn from both methods, how, when, and why to apply them. The main finding is that STEP helps to illustrate what happened, involving which actors at what time, whereas FRAM illustrates the dynamic interactions within socio-technical systems and lets the analyst understand the how and why by describing non-linear dependencies, performance conditions, variability, and their resonance across functions.

Woltjer, RogierLinköpings universitet,CSELAB - Cognitive Systems Engineering Laboratory,Tekniska högskolan,Interaktiva och kognitiva system(Swepub:liu)rogwo49 (författare)
Norwegian University Science and Technology NTNUDepartment of Production and Quality Engineering, Norwegian University of Science and Technology, Trondheim, Norway (creator_code:org_t)

Ingår i:RELIABILITY ENGINEERING and SYSTEM SAFETYLondon, UK : Elsevier Science B.V., Amsterdam.95:12, s. 1269-1275, s. 19-260951-8320
Ingår i:Safety, Reliability and Risk Analysis: Theory, Methods and Applications.London, UK : Elsevier Science B.V., Amsterdam.95:12, s. 1269-1275, s. 19-269780415485135

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