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In the Lean Six Sigma Control phase, any improvements that are identified are captured and documented. The main goal of the phase is to maintain the gains obtained from the Lean Six Sigma Improve phase. Hence, it is crucial to standardize the procedures to ensure that the new and improved processes are sustained.
In the Lean Six Sigma Improve Phase upon identifying the root-causes, solutions are generated and tested by conducting a pilot. Baseline data from the Lean Six Sigma Measure phase is compared to the data collected from the pilot, in order to identify any improvements that can be made.
The main purpose of Lean Six Sigma Analyze phase is to identify the root causes of the problems. During this phase, data analysis is conducted in order to filter the reasons of the problems. By pointing out the primary causes of the problems, correct solutions can be implemented.
Lean Six Sigma Measure is a phase where the current performance is measured. It is also the phase where a problem or any improvement that should be made is mapped out in detail. The focus of the Measure phase is to quantify the problem and establish the baseline data.
Lean Six Sigma Define phase identifies the problem statement and goals. A problem statement is developed to highlight the improvements needed by defining the measurable criteria or metrics. The goals are the direct reflection of the problem statement in which any improvement in the processes should be aligned with the goals set.