Human Error

Human Error
Name
Institution
Human Error
Overview
Human error refers to a situation where something has been done but was not intended by the doer and also not anticipated within the rules in place. This results in a task or system going against its usual or accepted limits. In essence, human actions fail in achieving their objectives in two possible ways. First, the action can turn out as planned, but this plan can be insufficient ultimately resulting in mistakes. Secondly, the plan can be adequate, but then the performance ends up being deficient (Shappell & Wiegmann, 2012).
The Human Factors Analysis and Classification System (HFACS) is a wide human error outline initially employed by the United States (US) Air Force to scrutinize and analyze human factors impacts in aviation. The HFACS classifies human error into unsafe acts, preconditions for unsafe acts, unsafe supervision, and also organizational influences (Shappell & Wiegmann, 2001).
Unsafe Acts
Unsafe Acts is classified into two classes, which are errors and violations with these two classes having their own subcategories. Errors mean unintentional actions that are committed by workers. Skill-based errors describe errors that result in the operator’s implementation of a routine that lead to the unsafe situation. Decision errors are mistakes that happen when workers proceed as expected, but the chosen plan becomes insufficient. Perceptual errors occur where the operator ignores the sensory input and makes a decision based on the defective information. Violations, on the other hand, denote wilful neglect of the set rules and guidelines. Routine violations refer to habitual actions by the operator that the governing authority tolerates. Exceptional errors appear when the operator deviate from authority against the normal and it is not tolerated by the authority (Shappell et al., 2007).
Preconditions for Unsafe Acts
Preconditions for Unsafe Acts are categorized into environmental factors, condition of operators, and also personnel factors. Environmental factors denote physical and technological influences that affect the procedures, practices, and actions of an individual resulting in human errors. The physical environment involves factors impacting the operating setting such as weather and factors of the ambient environment such as heat. Technological environment is those that affect the design and mechanization such as equipment and checklist. Condition of operations, on the other hand, deals with the negative mental, physiological, and also physical factors...