Uncategories Within Six Sigma, the _____ step puts in place methods and tools to maintain performance levels once they have been achieved.

Within Six Sigma, the _____ step puts in place methods and tools to maintain performance levels once they have been achieved.

Within Six Sigma, the _____ step puts in place methods and tools to maintain performance levels once they have been achieved. 

a) Define
b) Measure
c) Analyze
d) Improve
e) Control