The Toyota Way: 14 Management Principles From the World's Greatest Manufacturer

by Jeffrey K. Liker

One lean tool that facilitates this teamwork is called 5S (sort, stabilize, shine, standardize, sustain, discussed in Chapter 13), which is a series of activities for eliminating wastes that contribute to errors, defects, and injuries. In this improvement method, the fifth S, sustain, is arguably the hardest. It's the one that keeps the first four S's going by emphasizing the necessary education, training, and rewards needed to encourage workers to properly maintain and continuously improve operating procedures and the workplace environment. This effort requires a combination of committed management, proper training, and a culture that makes sustaining improvement a habitual behavior from the shop floor to management.