Generally taken near the end of a progra

The Improve phase of the Six Sigma DMAIC methodology concerns locating the optimal conditions of a process. Many improvement techniques used in Six Sigma concentrate on the impact of single factors on response or yield.

Well-designed experiments result in effective process design or redesign, and ultimately, improved organizations.

In the Six Sigma Improve phase, organizations are aiming to evaluate which process inputs have the most significant impact on the process output.

By the time they reach the Six Sigma Improve phase, organizations have a solid understanding of how and why their processes fail to meet customers' expectations.