Six Sigma White Belt Certification Practice Exam

The Control phase is focused on sustaining improvements and ensuring that changes made during earlier phases of a project are effective over time. This phase involves monitoring the process performance regularly to confirm that it remains at the desired levels after implementing improvements. Key activities during this phase include establishing control systems, creating a response plan for when performance deviates from the desired targets, and ensuring that the process is stable and capable of consistently delivering the desired outcomes. In contrast, the other phases serve different purposes in the overall process improvement framework. The Define phase is about identifying the problem and outlining the project goals. The Measure phase involves gathering data to understand the current state of the process and quantify performance. The Improve phase focuses on implementing solutions to address the problems identified and testing them. Each of these earlier steps is crucial, but the specific activity of reviewing process performance is unique to the Control phase.