Which term describes the process of bringing together component subsystems into one system and ensuring that the subsystems function together as a system?

• A. The process of bringing together component subsystems into one system and ensuring the subsystems function together as a system.
• B. A set of step-by-step instructions compiled by an organization to help workers carry out routine operations.
• C. Signal Conditioning
• D. Ventilation

Answer: (A)

System integration is the process of bringing together component subsystems into one system and ensuring they work together as a system. It involves aligning interfaces, data flows, control signals, and safety interlocks so that the whole setup operates cohesively, not just each part in isolation. In Flammable-Refrigerant Refrigeration Systems, this means the refrigeration units, sensors, alarms, interlocks, and ventilation controls must communicate reliably and respond correctly to conditions or faults. The other terms describe a procedure (a manual), a signal-processing task, or a physical function, not the act of unifying parts into a functioning whole.