2025 Volume 61 Issue 3 Pages 172-180
In high-mix, low-volume production, workers are required to acquire skills for various work procedures, standardization of work and promotion of proficiency are important challenges. This study develops a work analysis / management system using digital technologies to monitor assembly work in real time, collecting and analyzing daily work log data to visualize work progress, assembly time for each part and variations in assembly sequence. The system enables a detailed understanding of the current state of work, which was previously difficult to analyze, and supports identify work that requires improvement. The system also enables workers to evaluate differences in skill levels and variations in assembly work. As a result of the implementation of the system at actual production sites, it is shown that the findings can be used as new information that contributes to clarifying priorities for work improvement, standardization of work, and promotion of work proficiency. This study proposed the developed system as an effective work analysis / management method for high-mix, low-volume production, and verified its usefulness at actual production sites empirically.