What is the name of the theory that looks beyond the three phases to analyze management, machines, media, and the man?

• A. Multiple factor theory
• B. Human factor theory
• C. Safety culture theory
• D. Systems theory

Answer: (A)

Multiple factor theory emphasizes that performance and safety come from the interaction of several factors, not a single element. It analyzes management decisions, the machines and tools in use, the information and media that guide work, and the human operator as interconnected parts of a system. By looking beyond a simple three-phase model, this approach shows how each factor influences the others and how mismatches among them can lead to problems. For example, aggressive production goals set by management can overwhelm maintenance, training, or clear instructions in the media, and an operator who is fatigued or unsure how to use the equipment can exacerbate risk. This theory fits the scenario because it explicitly names and integrates these four dimensions to explain how work systems function as a whole, rather than focusing on a single factor.