Six Sigma has its both advantages and disadvantages, Following are some points which i've examined:-

• Six Sigma aims to maximize customer satisfaction and minimize defects - Globalization and instant access to information, products and services continue to change the way our customers conduct business. Today's competitive environment leaves no room for error. We must delight our customers and relentlessly look for new ways to exceed their expectations. This is why Six Sigma Quality has become a part of our culture.

• Six Sigma is far more in depth than this document has illustrated. It is a tool that if used correctly, can identify key areas of business processes that need attention to lower defect rates. One of the greatest advantages is that all the measured improvements achieved through this technique can be directly converted into financial results. In fact, more and more shareholders even require that Six Sigma method be implemented.
• In the sales field there is an old saying; "Eagles never fly with doves. But to find angles you go through lots of doves." In today's world there is so much information on turnover based on specific industries so baseline the norm should be easy to come up with unless your industry is very special. Getting a sigma value is very easy as well with your current date on how your company is doing. Change however may not be from a process improvement unless management is willing to change as well.
• Research proves that firms that successfully implement Six Sigma perform better in virtually every business category, including return on sales, return on investment, employment growth and stock value growth. The strategy that has to be applied in today's educational arena is a thoughtful concern on the part of the management to understand customer needs and strive to reduce defects throughout all educational processes.
• Most organizations embracing Six Sigma apply it without measuring the "buy-in" (enthusiasm for Six Sigma) of their employees. In some types of operations this may be critical. The performance of Six Sigma in many types of operations has never been or cannot yet be measured. For example, if a company sees that Six Sigma has improved the quality of its baseball cap production line, then it might presume that applying Six Sigma to its engineering think tank will improve its creativity by the same degree. Certainly any company, in a lawsuit involving the quality of its products, will proclaim its quality programs at the forefront of its defense. This causes some skeptics to claim that their organization has embraced Six Sigma only to look good in court. Whether this is the case or not, the fact that the statement is believed reduces the "buy-in" by the company's employees, which may reduce the ability of Six Sigma to improve quality. Six sigma is no different than "reducing variation" or piece-to-piece consistency (at what cost?). IS the reduction of variation the only solution or the choice of when to reduce. Therefore, what is achieved by Six Sigma is piece-to-piece consistency or focus on parts. Piece-to-piece consistency may be adequately required for large volume production only when it is established by its "piece-to-system" consistency requirement (target thinking).

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