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Application of Sensemaking
• System-oriented taxonomies: Captures data from the system’s perspective. IO HF/ E issues may or may not be captured.
• Communication system models: Captures data from communications perspective ( i.e., messages sent/ received and interpretation). Does not evaluate
IO HF/ E issues.
• Information processing models: Captures data by measuring operator’s
memory, judgment, and decision-making with respect to actions performed.
Could possibly capture IO HF/ E issues.
• Symbolic processing models: Captures data from human thought processes and perspectives. May not capture IO HF/ E issues.
• Situation awareness models: Studies the information available to the
operator prior to decision-making. Could possibly capture IO-related HF/ E
issues.
• Control system models: Evaluates theoretical performance in a closed-loop
system, situation, or scenario. May not capture IO-related HF/ E issues.
• Error of commission models: Evaluates operators competences with
respect to the unintended/ unnecessary acts performed before mishap. Could
possibly capture IO HF/ E issues.
• Human-system issues taxonomies: Evaluates h uman-system integration
relative to physical, interpretational, and decision-making ability. Could
possibly capture IO HF/ E issues.
• Air traffic management models: Evaluates the cause of incident and studies its relationship with other possible causes. Could possibly capture IO
HF/E issues.
• HFACS models: Evaluates four causation levels: organizational influence,
unsafe supervision, preconditions related to unsafe acts, and unsafe acts.
Could possibly capture IO HF/ E issues.
• DoD HFACS models: This model is an enhancement of HFACS model.
Could possibly capture IO HF/ E issues.
APPLIED STANDARDS AND MODELS
anSi/ hfeS-100 StanDarD
Individualized CWs have been around for over 30 years. The Human Factors and
Ergonomics Society ( HFES) is an internationally recognized nonprofit organization, founded in 1957. HFES has an ANSI-approved standard for HF/ E in CWs.
Their ANSI/ HFES-100 standard has been widely accepted by industry since 1988
(ANSI/HFES-100, 2007).
ANSI/ H FES-100 lists system/ c omponent-level quantitative parameters to assist
engineers in designing a system around human limitations and to provide ergonomic
CW environment for users. The standard has been applied on C W-based emergency
dispatch centers, factories, control rooms, and power plants ( ANSI/ HFES-100,
2007). The standard has two HF/ E categories: operator comfort ( OC) and IO. The
OC is outside the scope of this study ( definition included as reference for future studies). Both IO and OC are described below:
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