Integrating Human Factors (HF) into a Process Safety Management System (PSMS)

Stephen Theophilus, Chizaram Nwankwo, Elijah Acquah-Andoh, Enobong Bassey, Udeme Umoren

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Human factors and process safety management (PSM) have become key factors in preventing exposure to both hazardous materials and major accidents. Therefore, comprehensive process safety management is required to address all aspects of human factors. Currently, there are six-process safety management models all of which have some weaknesses with respect to the control of human factors inherent in the process industry. Moreover,there is as yet no universally accepted process safety management model that treats process safety management as an integral part of the management system. Therefore, a need has arisen to integrate human factors and the existing framework and models into a single integrated management system to ensure a holistic approach of control and a continuous learning system. This paper identifies the missing human factors in the current system and describes an integrated process safety management system (IPSMS) model drawn from screening all existing PSM frameworks, while integrating the Human Factors Analysis and Classification System (HFACS). The model, which adopts the PLAN, DO, CHECK and ACT framework, also outlines an implementation strategy. We conclude that IPSMS provides both a theoretical and a practical framework with which to manage, measure and analyse process safety management systems.
Original languageEnglish
Pages (from-to)67-85
JournalProcess Safety Progress
Issue number1
Early online date30 Jul 2017
Publication statusPublished - Mar 2018


  • Human Factor
  • Process Safety Management Model
  • Process Industry
  • Integrated Process Safety Management System
  • PDCA


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    Chizaram Nwankwo (Consultant)

    28 Aug 2017

    Activity: Consultancy/Expert ContributionConsultancy

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