The fourth step in the lean 5S (6S) process is seiketsu, or standardized. Standardize is fundamentally about establishing clear, unambiguous norms for people to perform. Standards are a prerequisite for continuous improvement. As Taiichi Ohno, the father of the Toyota Production System (TPS) put it, “Where there is no standard, there can be no improvement.”
5S is a simple, intuitive, powerful method that can be applied to any workplace or industry from equipment manufacturing to legal services. While 5S creates orderly workplaces it’s far more than simple cleaning or housekeeping. 5S drives continuous improvement in workplaces by systematically exposing waste, making abnormalities visible, and prompting change for the better.