Six Sigma Improve phase is all about techniques, to alter factor in a way which one changes one or more input variables (Xs) to see if any of the variables, or any combination of those variables, affects the output (Y) in a significant way.This is way to deal with data set of experiments.
Alternate, in order to improve process, lean techniques can be very useful.
Generate Improvement Alternatives
Create “Should Be/Future State”Process Map
Perform Cost/Benefit Analysis
Elements of Improve Phase
Other ways to Improve the process is via lean Methodology, below are some of the ways: