[] a method of making and keeping an office or workplace clean and well organized. The 5 Ss are: sort(= organize and decide what to keep or throw away), systematize(= arrange things according to a system), scrub(= clean thoroughly), standardize(= make these activities regular and normal) and sustain(= continue to do it).5S 现场管理法：整理、整顿、清理、标准化、保持。