Six Sigma Methodologies: MAIC was developed, which evolved into DMAIC, where D stands for define, M stands for measure, A stands for for analyze, I stands for improve and C stands for control. Experience shows that D is the essential stage for achieving dramatic improvements quickly, while C is the most critical stage for realizing return on investment in Six Sigma projects. The define phase requires the implementation of many tools, while the control phase can help support better results, which requires the use of internal controls and management involvement. The success of the DMAIC methodology depends on working well on the right projects. The right project is one that has a significant return on investment. Sometimes people get training on Six-Sigma but can't find projects or sometimes a company commits to Six-Sigma but doesn't allow time to work on projects. Starting projects is easy; the hard part is completing and closing those projects. Therefore, the first priority is to identify the right projects to work on that will impact the bottom line and generate savings for the company. Several potential projects need to be identified and evaluated based on a cost-benefit analysis. A simple measure, such as the Project Priority Index (PPI), can be used to prioritize projects according to the following equation. PPI= (benefits/costs)x(probability of success/time to complete the project in years) At a minimum, the PPI should exceed 2 to ensure a return on investment. Initially you can find many projects with PPI greater than 4, thus making it easier to realize savings. Six Sigma Tools: The Six Sigma methodology incorporates numerous tools. Unique and useful Six Sigma tools include...... half of the document ...... and implement the Six Sigma initiative well in the organization. Works Cited Dr. T. Sree Krishna MBA., M. Phil. ,Ph.D., Associate Professor, Department of Management Sciences, RVR&JC College of Engineering, Chowdavaram, Guntur-522019. E-mail:[email protected], Tel.:[email protected], Tel: 09505858518.1. www.google.com2. AR. Aryasri- management science.3. Dr. MM Kumthekar, publication Nandkumar Hukeri- Mnagement science-elcrotech4. Praveen, Gupta, Arvin Sri – Stat Free Six Sigma – Sulthan Chand Publications.5. EPIC Workshop, Brussels Message, June 20116. Message of the Fourth International Conference on Lean Six Sigma Glasgow, March 20127. GI Fachtagung SW Management, 2010, Aachen