Applied Research on Workers Assignment Optimization Using the InQross System

In the field of production control, solving production scheduling and line balancing problems is extremely important for improving productivity, reducing production costs, and meeting delivery dates. If a delay occurs in one stage on the production line, it will affect the next stage, causing a delay in delivery and an increase in costs. This study takes a parallel production line as an example and considers the problem of how to optimally assign workers to each stage when the total expected cost is minimized by having a different number of stages in each production line. We propose a method to verify the above sufficient conditions based on the actual measurement data by measuring the actual operating time of each worker in real-time using the ‘InQross Kaizen Maker’ (hereinafter referred to as ‘InQross System’).