What is a key function of the 'Improve' phase in Six Sigma?

The 'Improve' phase in Six Sigma is primarily focused on the development and implementation of solutions that address the root causes of identified issues, ultimately leading to process optimization. During this phase, teams use various techniques, such as brainstorming, design of experiments, and pilot testing, to create and refine solutions that can significantly enhance performance and quality.

This phase is crucial because it translates the insights gained during earlier phases—like defining the problem and measuring current performance—into actionable strategies. By emphasizing solution development and process optimization, organizations can drive significant improvements and increase efficiency, leading to better results and higher levels of customer satisfaction.

While other phases of Six Sigma, such as 'Define' and 'Measure', focus on problem identification and data analysis respectively, the 'Improve' phase is about moving from theoretical understanding to practical application, making solution development its key function.