Fundamentals of systems ergonomics

Area of Science:

• Systems Science
• Human Factors Engineering
• Ergonomics

Background:

• Ergonomics/human factors is often described as a systems discipline.
• The term "systems X" is widely used, necessitating a clear definition for ergonomics.
• Understanding ergonomics within a systems framework is crucial for effective application.

Purpose of the Study:

• To define the specific attributes and notions of ergonomics/human factors from a systems perspective.
• To clarify what distinguishes ergonomics as a systems discipline.
• To provide a framework for understanding ergonomics in complex environments.

Main Methods:

• Conceptual analysis of ergonomics/human factors as a systems discipline.
• Identification of key systems-based attributes.
• Illustration of these attributes with practical examples from rail human factors research.

Main Results:

• Ergonomics/human factors is defined by five key systems notions: concern for context, acknowledgement of interactions and complexity, a holistic approach, recognition of emergence, and embedding within organization systems.
• These notions provide a comprehensive systems-based definition of the discipline.
• Rail human factors examples effectively demonstrate these five defining attributes.

Conclusions:

• Ergonomics/human factors is fundamentally a systems discipline.
• The five identified notions (context, interactions, complexity, holistic approach, emergence, organizational embedding) are essential for defining ergonomics in systems terms.
• Applying these systems concepts enhances the understanding and practice of ergonomics, particularly in complex domains like rail transportation.