20 Keys has helped many manufacturing companies integrate the top manufacturing improvement methods into a coordinated system for drastic and continual improvement in involvement, quality, and productivity. This program provides the strategies necessary to achieve ambitious goals through a five-level scoring system.The revised edition is improved with upgraded criteria for the five-level scoring system to guide your company to world-class status. New material and updated layout make implementation even easier. Two valuable case studies demonstrate effective use by both a Japanese company and an American manufacturer.