This study investigated the method of continuous improvement of small-medium company production processes through POSCO's QSS(Quick Six Sigma) activities. QSS is a field operation technique that encompasses the advantages of Six Sigma, TPS(Toyota Production System), TQM (Total Quality Management), and IE(Industrial Engineering). Through this, POSCO not only encourages activities centered on related small and medium-sized partners, etc., but is also expected to contribute to the continuous improvement of the company's own production process through QSS activities. In this study, rather than unconditionally carrying out activities according to the needs of large companies, the research is to help the continuous improvement of the actual production process of small and medium-sized enterprises by effectively applying and spreading QSS activities in consideration of the characteristics and environment of the company. For this purpose, empirical research is conducted on the process improvement activities and QSS activities of company Y, which has less than 100 assembly and production quality and inspection processes among SMEs. The changes in the production process improvement of SMEs through the application of the final QSS were investigated through empirical studies.

The company's most important goal is to generate revenue. Managers want to lower prices, improve quality, and increase productivity. So many innovative activities have been developed. Businesses must perform management innovation. But many companies fail due to the difficulties of innovation. POSCO developed QSS with advantages such as TPS(Toyota Production System), TPM(Total Quality Management), Six Sigma, and IE(Industrial Engineering). The KOREA government spread QSS activities to enterprises. QSS activities are applied to manufacturing companies through training and activities, and basic capacities, maintenance capabilities, and improvement capacities are evaluated before and after the evaluation. An empirical study on BPR of companies through QSS innovation.