Lean Manufacturing and Six Sigma Definitions

Glossary terms, history, people and definitions about Lean and Six Sigma


Share This

Acronym for Achieving Competitive Excellence, the continuous improvement program developed at United Technologies Corporation (UTC) in 1998. It is an integrated improvement program that uses the best practices of lean and Six Sigma, such as SPC, TPS, value stream map, waste, and kaizen.

Yuzuru Ito is described as the founder of ACE, when he took over the Quality organization at Otis Elevator. There was also some foundation of lean principles established in the early 1990’s at Otis and Pratt & Whitney with support from Shingijutsu.

UTC is a conglomerate of organizations:

  • Otis Elevator
  • Pratt & Whitney
  • Hamilton Sundstrand
  • Carrier
  • Goodrich Corporation
  • Collins Aerospace
  • Raytheon






lean six sigma certification and training

Additional Resources

« Back to Glossary Index