The human error refers to a scenario where something or a result that was not intended by a particular actor or by a desired set of guidelines happens. In other words, human error refers to actions that give negative results or actions that fail to achieve the targeted output.
The Human Factors Analysis and Classification System (HFACS) uses various methods to categorize human error. The methods used are categorized into four HFAC frameworks. They include the preconditions for unsafe acts, Organizational influences, Unsafe supervision, and Unsafe acts of operators (Wiegmann & Shappell, 2017). The common human errors that arise from unsafe acts are categorized into three types. They include Perceptual error, Decision errors, and skill-based errors. The skill-based errors occur as the operator executes their daily routine.
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On the other hand, Decision errors are the errors that occur when operators chose a plan that proves to be inadequate to achieve the targeted outcome. Perceptual errors are those that occur due to the use of faulty information, especially when the operator's sensory input is degraded (Wiegmann & Shappell, 2017). The preconditions for the unsafe acts method outline the possible factors that can perpetuate human error. The unsafe supervision method checks the possible consequences of a lack of supervision and how it affects a human's ability to avoid errors. The organizational influence is concerned with how resource management, organizational climate, and operational processes affect human error.
The HFACS system of studying human error is both proactive and reactive. From its framework, it can be deduced that it is reactive since it provides a means of detecting the main causes of human error, such as unsafe acts and organizational influence. The system is also proactive because, after understanding the factor behind human error, policies can be implemented to mitigate the effects of human error or prevent the repetition of the error.
Reference
Wiegmann, D. A., & Shappell, S. A. (2017). A human error approach to aviation accident analysis: The human factors analysis and classification system . Routledge.
