As recommendations for future studies, the following can be suggested: (1) Considering a
validation of the proposed method based on other validity types that have not been conducted in
this paper (for example, discriminant and convergent validity and using Bayesian network); (2)
adapting the method to the context of health and safety management system designed to prevent
major accidents, in which process safety, rather than personal safety, is the main concern; and (3)
the alternate application of the method in the same safety-critical system to investigate how
much the sources of resilience and brittleness change over time