Optimization of Production Processes in Micro, Small and Medium Metal Enterprises (SMEs Metal) using Fuzzy-Kano, QFD and SPC Methods: a Systematic Literature Review. Tibuana : Journal of Applied Industrial Engineering, [S. l.], v. 9, n. 02, p. 139–153, 2026. DOI: 10.36456/tibuana.9.02.11607. Disponível em: https://jurnal.unipasby.ac.id/tibuana/article/view/11607. Acesso em: 29 jul. 2026.