The domino theory later expanded into the multiple factor theory; what does this theory analyze?

The domino theory later expanded into the multiple factor theory; what does this theory analyze?

• A. management, the machines, the media, and the man
• B. only management
• C. only machines
• D. environment and procedure

Answer: (A)

Accidents are the result of several interacting elements in the work system, not just a single fail point. The multiple-factor theory expands the idea of a linear domino sequence to look at how four broad areas—people (the operator and human factors), machines (equipment condition and reliability), environment (work conditions, surroundings, hazards), and management (policies, supervision, training, maintenance systems)—all influence safety. When weaknesses or failures in these areas align, the risk of an incident increases, but strong performance in one area can help offset problems in another. The best answer reflects this holistic view by including all four categories: management, machines, environment (often described as media or conditions), and the man. Choices that focus on only one aspect or omit essential components don’t capture how safety emerges from the system as a whole.

Accidents are the result of several interacting elements in the work system, not just a single fail point. The multiple-factor theory expands the idea of a linear domino sequence to look at how four broad areas—people (the operator and human factors), machines (equipment condition and reliability), environment (work conditions, surroundings, hazards), and management (policies, supervision, training, maintenance systems)—all influence safety. When weaknesses or failures in these areas align, the risk of an incident increases, but strong performance in one area can help offset problems in another.

The best answer reflects this holistic view by including all four categories: management, machines, environment (often described as media or conditions), and the man. Choices that focus on only one aspect or omit essential components don’t capture how safety emerges from the system as a whole.