Overview of the Improve Phase

In the Improve phase, the primary goal is to generate and implement effective solutions that will lead to process improvement. Moreover, in this phase, the team conducts brainstorming, evaluating potential solutions, selecting the best ones, and piloting. In addition, this phase acts as a bridge between the analysis of the problem and the implementation of solutions.

Improve Phase

Key activities in Improve Phase

1. Brainstorming and Solution Evaluation in Improve Phase

In this phase, a diverse team of experts and stakeholders come together to brainstorm and generate a wide range of possible solutions. Specifically, the emphasis is on encouraging creativity and out-of-the-box thinking. In addition, the team evaluates each solution based on its feasibility, potential impact, and alignment with the project goals. Further, the team uses tools like cost-benefit analysis, risk assessment, and decision matrices in the evaluation process.

2. Selecting and Piloting Solutions

After a thorough evaluation, we select a subset of solutions for further testing and implementation. We pilot the selected solutions on a small scale to gauge their effectiveness and gather feedback. As a result, this helps in identifying any unforeseen issues or modifications required before full-scale implementation. Further, the pilot phase acts as a safety net, allowing for adjustments and fine-tuning to ensure a smooth transition.

3. Process Optimization in Improve Phase

This phase focuses on optimizing the processes by eliminating waste, reducing defects, and improving overall process efficiency. Therefore, we integrate Lean principles with Six Sigma methodologies to eliminate non-value-added activities and streamline processes.

4. Change Management in Improve Phase

Successful implementation of improvements requires effective change management. More importantly, the Improve phase emphasizes the importance of gaining stakeholder buy-in, developing change management plans, and effectively communicating the benefits and impact of the proposed changes.


Let’s consider a manufacturing company that has identified excessive defects in their production line as a critical problem. During the Improve phase, the team brainstormed potential solutions such as implementing stricter quality control measures, providing additional training to employees, or upgrading machinery. They evaluated these solutions based on their feasibility, cost, and potential impact on reducing defects. After evaluation, the team decided to pilot the implementation of stricter quality control measures on a small section of the production line. This allowed them to monitor the effectiveness of the solution, gather feedback from the operators, and make necessary adjustments before rolling it out across the entire production line.


The Improve phase in Six Sigma plays a pivotal role in turning analysis and ideas into practical solutions. By fostering creativity, evaluating potential solutions, and piloting them, this phase ensures that we select and implement the best solutions effectively. It acts as a critical link between identifying problems and achieving process improvement. By meticulously following the Improve phase, organizations can achieve substantial improvements in quality, efficiency, and customer satisfaction.

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