In a block diagram, what should the output box reference?

In a block diagram, the output box is designed to represent the end result of a process or system, often indicating the final output that can be perceived or utilized. By focusing on a visible or audible output, the output box conveys what the system delivers to the user or the environment—such as a light being turned on, sound being emitted, or a physical object being produced.

This is critical because it helps clarify the purpose of the system being analyzed, showing how it transforms input into something that can be measured or experienced. The correct understanding of the output in the context of a block diagram emphasizes the importance of the final results of a process, which is fundamental in design and technology.