Abstract: Software testing is skill of investigating the purpose and rightness in software behavior caused by variations in component values or the environment. Quality improvement and customer satisfaction becomes an increasingly difficult challenge when there are fewer resources available. This paper proposes an innovative technique of DMAIC methodology using six sigma software testing. The paper supports that Six Sigma is not going to supersede other initiatives, but instead offer a tactics to determine the best approach for the process of testing software. In this paper a discussion has been made to use DMAIC methodology and principals while carrying out six sigma projects.