What term describes a graphic representation of the process in production effectiveness as time passes?

The term "learning curves" specifically refers to a graphical representation that illustrates how production effectiveness tends to improve over time as workers become more skilled and efficient at completing tasks. This concept is central to understanding how repeated practice leads to increased efficiency, reduced time per task, and enhanced productivity. The slope of the learning curve reflects the rate at which performance improves; the steeper the curve, the faster the improvement in effectiveness.

In contrast, flow diagrams and process maps primarily focus on depicting the steps and sequences involved in a production process rather than illustrating how effectiveness evolves over time. Efficiency metrics are quantitative measurements used to evaluate performance but do not typically provide a graphic representation of continuous improvement in the same way that learning curves do. Therefore, "learning curves" is the most accurate term for a graphic representation of process improvement as time progresses.