2025 Volume 49 Issue 1-2 Pages 83-93
In general, production line capability is assessed by efficiency. However, relying solely on efficiency is inadequate when addressing demand fluctuations. This paper proposes a “responsiveness” metric to evaluate the ability to handle demand changes based on the ratio of “range” of fluctuations and “time” required to respond. Additionally, presents a method for efficiency assessment that incorporates this metric and shows the results of experimental evaluation from automotive assembly line.