西格玛即希腊字σ的译音，是统计学家用语衡量工艺流程中的变化性而使用的代码。企业也可以用西格玛的级别来衡量在商业流程管理方面的表现。传统的公司一般品质要求已提升至3sigma.这就是说产品的合格率已达至99.73％的水平，只有0.27％为次货。又或者解释为每一千货产品只有2.7件为次品。很多人认为产品达至此水平已非常满意。可是，根据专家研究结果证明，如果产品达到99.73％合格率的话，以下事件便会继续在现实中发生：每年有20，000次配错药事件；每年不超过15，000婴儿出生时会被抛落地上；每年平均有9小时没有水、电、暖气供应；每星期有500宗做错手术事件；每小时有2000封信邮寄错误。由此可以看出，随着人们对产品质量要求的不断提高和现代生产管理流程的日益复杂化，企业越来越需要象六西格玛这样的高端流程质量管理标准，以保持在激烈的市场竞争中的优势地位。事实上，日本已把”6 Sigma”作为他们品质要求的指标。管理专家Ronald Snee先生将6西格玛管理定义为：“寻求同时增加顾客满意和企业经济增长的经营战略途径。”
Six Sigma is a strict, concentration and effectively improve the quality of process management enterprise implementation principle and technology. It contains a number of management, in pioneer "zero defect" pursuit of perfect commercial, quality cost greatly reduced, and finally achieves the financial results of the improved and competitiveness of the breakthrough.
Implementing six sigma for an enterprise, not just a series of training. It means that the enterprise culture from the protection of the standardized management to open thought innovation breakthrough ideas. Six sigma in providing effective management method and process technology, on the basis of the training for enterprise organization ability, has ability, project management, technology and mathematical statistics, the leader of the diagnosis is to change the enterprise competition and core strength. They will be the most advanced methods of work and the latest computer technology, applied to a simple process model, through DMAIC zero defect operation and improve the process to make the breakthrough to improve customer satisfaction quickly， each link to achieve Continuous Improvement Continuous Improvement (Continuous Improvement) of strategic objectives.
Sigma namely the Greek word σ, statisticians, measured in terms of changing process of the code. An enterprise may also use sigma level to measure in the business process management. The traditional company general quality request has been promoted to 3sigma. This means that the rate of products has reached to 99.73% level, only 0.27 percentage points for orders. And for every 1,000 goods or explanation for the defective product only 2.7 pieces. Many people think of this level has very satisfied. However, according to the research results show that if the expert 99.73% qualified products, following the incident will continue to occur in reality: a 20,000 times with the wrong medicine, Each year more than 15,000 not thrown born babies were born, An annual average 9 hours without water, electricity, heat supply, Each week had 500 cases do wrong operation, Every hour 2,000 letter mailed error. We can see that, as people to improve the product quality and the modern production management process, the enterprise and the complexity of the six sigma so as to high-end procedures, in order to maintain the quality management standard in the fierce market competition advantage. In fact, Japan has six Sigma "" as their quality requirement. Management experts Ronald Sneer six sigma management will define as: "seek increase customer satisfaction and enterprise management strategy of economic growth."
The six sigma management experts Tom Pyzdek: "the six sigma management is a kind of brand-new management enterprise. Six sigma project, it is main technical management project."
Mr. Welch below is the famous writer; Janet’s interview about six sigma management of:
"Quality the implications of the literal meaning, but from top to provide a transcendence of things, but not better than most of the things are." In the early 1980s, when faced with get competitor threats, Welch once said: MOTOROLA, HP technology, Texas instruments and Xerox and not enough capital and we compete, and their competitiveness from their product quality. The middle of 90's Welch becomes the six sigma quality keen admirers. In 1996, in Virginia charlotte city at the annual meeting of the general electric company, he said: "in the process of the progress of general electric, we have an important scientific and technological content of the product, the quality control tube task in 4 years task of our production to a superior level, make us whether in products manufacturing or services are free of defects or defects of four million below. This is our general electric unprecedented challenges, is also the most potential benefits and most of the time attack." "We overthrow the old qc group, because they are out of date. The modern leader, belong to belong to managers, also belong to the staff members of the company -- each job." "We want to change our competitive ability, the scholar-bureaucrats is their quality to a new realm. We must make oneself quality make consumers feel very special and valuable for them, and it is very important to success factors. Thus, we will become their most valuable only choice."
We can put the six sigma management is defined as: "get and maintain the success in business and operating performance of the maximization of comprehensive management system and development strategy of enterprise is to get. Rapid growth mode of operation. The six sigma management is "seeking and increase customer satisfaction and enterprise management strategy of economic growth." Enterprise is to obtain rapid growth and competitiveness of the mode of operation. It is not merely technical method, but new management mode. Six sigma management has the following features:
1) More than ever, the extensive performance improvement, emphasize the key requirements from customers and business enterprise strategic focus, seeking breakthroughs opportunity for performance of customers and create more value.
2) Emphasize on performance and process metrics, through measurement, challenging goals and level compared to the platform,
3) Provides the performance improvement methods. According to different purposes and fields of application, the specialization of improvement process includes: the six sigma product/service process improvement process, the six sigma DMAIC DFSS design process,
4) In the implementation of "the Champion", "big men", "black belt MBB black belt in BB" "green belt GB" trained personnel of responsibilities as the organizational safeguard,
5) Through six sigma project implementation and completion process improvement project, each project completion time in 3-6 months.
6) Specified standard of success and measuring method, and the rewards for completed project staff,
7) Organization culture change is the important component parts.
Six sigma management method "is all the work as a process, USES the method of quantitative analysis of the factors affecting the quality of process and find out the key factor of improved so as to achieve better customer satisfaction. If you are looking for an enterprise to reduce the quality defect and service and maintain the persistent deviations, so don't hesitate to new methods. Six sigma to financial results prove your choice is correct. American general electric company CEO Mr. Welch in 2000, an annual report that:
Six sigma is of high quality, create miracle has reduced the general electric company in the past the waste management processes of complex and simplify the management process and reduce the material cost. Six sigma implementation has become the introduction and commitment to innovation products of high quality and the symbol of a strategy.