2022 Volume 22 Pages 1-6
In companies adopting the Toyota Production System, all improvement activities are concentrated in quality improvement and lead time shortening, and the results are said to lead to profits, and the efficiency of improvement activities is high. However, in cases where a mechanism has not been established, the results of improvement activities may not effectively affect profits, which is a problem faced by many small and medium-sized enterprises. In this study, in order to clarify the process in which improvement activities and profits are linked, we propose a diagnostic tool called matrix model, and verify its effectiveness from a survey of Small and Medium Enterprise A Corporation. Diagnosing improvement activities using a matrix model is considered to be an effective means for visualizing the problems faced by small and medium-sized enterprises and examining improvement activities that lead to profits.
