Decomposed Fuzzy Set-Based Failure Mode and Effects Analysis for Occupational Health and Safety Risk Assessment


Intelligent and Fuzzy Systems - Intelligence and Sustainable Future Proceedings of the INFUS 2023 Conference, İstanbul, Turkey, 22 - 24 August 2023, vol.758 LNNS, pp.776-786 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 758 LNNS
  • Doi Number: 10.1007/978-3-031-39774-5_85
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.776-786
  • Keywords: Decomposed fuzzy sets, FMEA, Fuzzy sets and extensions, OHS
  • Yıldız Technical University Affiliated: Yes


The Failure Mode and Effects Analysis (FMEA) is utilized to evaluate the level of risk and determine appropriate measures to reduce the magnitude of those risks. In order to determine the risk level in a work environment, the method employs three parameters; probability, severity, and detectability. However, evaluating these parameters accurately is not an easy task since it involves randomness in the estimation of these parameters. For instance, when an accident occurs, it could result in minor injuries as well as fatalities, making it challenging to predict the outcome of the situation and creating uncertainty in the evaluation process. To address this uncertainty, a new approach is proposed in this study that utilizes decomposed fuzzy sets. Decomposed fuzzy sets are a type of fuzzy set extension that takes into account evaluations made from both a pessimistic and an optimistic perspective. In this study, the FMEA method is first extended to incorporate decomposed fuzzy sets, and the proposed approach is then applied to the production of chemicals and chemical products. Based on the results, the risks associated with chemical spills and releases, exposure to toxic or hazardous chemicals, and machinery and equipment failures are found to be higher compared to other failures.