The competency of organizational safety control structure; a framework for evaluation

The latest generation of accident models demonstrate that the root causes of the systemic accidents in complex sociotechnical systems derive from the system’s inefficient organizational safety control structure; the "structure" that has not adapted itself to the under-controlled dynamic sy...

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Veröffentlicht in:International journal of system assurance engineering and management 2021-12, Vol.12 (6), p.1180-1198
Hauptverfasser: Nejad, Ahmad Dehghan, Bahramzadeh, Amirhosein
Format: Artikel
Sprache:eng
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Zusammenfassung:The latest generation of accident models demonstrate that the root causes of the systemic accidents in complex sociotechnical systems derive from the system’s inefficient organizational safety control structure; the "structure" that has not adapted itself to the under-controlled dynamic system and, consequently, is not able to control system’s hazardous behaviors. Hence, in this paper, a clear approach is presented to evaluate organizational safety control structure’s competency. In this approach, the modelling process of the System Theoretic Process Analysis (STPA) is used to model hierarchical safety control structure; then, Bayesian Belief Net (BBN) is applied for the competency evaluation of the structure. Clearly, a novel procedure is introduced for converting an STPA-based safety control structure to a BBN for achieving some invaluable safety lead indicators via quantitative analysis.
ISSN:0975-6809
0976-4348
DOI:10.1007/s13198-021-01373-8