This document discusses how Starwood Hotels implemented Six Sigma to improve quality. It states that Starwood is one of the largest hotel chains in the world with over 1,000 hotels. In 2001, Starwood adopted Six Sigma to reduce costs and defects. Through Six Sigma, Starwood reported saving over $400 million between 2001-2006. The document also describes the different roles in a Six Sigma program, such as Green Belts and Black Belts, and the skills needed to be successful with Six Sigma.