In today's world economy is undergoing major changes. The world before the establishment of international trade and investment barriers, geographical distance, time zone and language differences, the establishment of laws and regulations of different governments, different cultural and commercial institutions, created a separate national economies, is with the current rapid development of science and technology, WTO popularity is gradually moving toward separation from that of mutual trust in a global economy globalization -------. Its products and services to promote the production and consumption in the world of global competition.
  On the other hand, with the index of human knowledge and expansion of the complexity of products is getting higher and higher, and consumers of their products multi-functional, timeliness, and customer demand and the expansion of product and service quality has become increasingly harsh.
Producers face competition from around the world and consumers are increasingly aware that quality is a necessary condition for business survival. Therefore the quality of management theory also developed.
  The quality of movement can be described as the most influential post-war management thought that it originated in Japan. At that time, Japan as a result of poor quality goods, they introduced quality management experts the United States of PDCA Deming theory (theory of the quality of the cycle).
  Japan in 1951 enacted the first Deming Prize marks the beginning of quality management.
   A. V. Fagan. Fort el 60's in the 20th century put forward the TQC (Total Quality Control) concept, his theory was widely accepted in Japan. After decades of efforts, the Japanese economy in the mid-80 to reach the most glorious period of its products such as automobiles, household appliances, such as flooding the world market. Well-known experts in quality management Juran to Japan's economic miracle of the evaluation is: 'Japan's economic revitalization is the quality of a successful revolution.'
  The beginning of 1996, the Japanese have followed the lead of the United States as the TQC to TQM (total quality management theory).
  U.S. companies have always attached importance to quality management, quality management originated in Taylor. In the late 50 in the United States, the United States Department of Defense and the implementation of the enactment of the military-industrial product standards, adopted after the British Standards Institution, has become the International Organization for Standardization ISO 9000 standards, the quality of Japanese products as the world leader, 20 Century 80's, the Americans turned to Japan to study the quality of management, and it has developed into TQM, --- full of quality, the quality of the entire process, full participation in the quality and the quality of enterprise-wide. Then the United States August 20, 1987, President Reagan signed Public Law 100-107, that is, Mark al. Malcolm Baldrige National Quality Improvement Act, which legislation has epoch-making significance. In the United States, largely through the quality inspection, statistical quality control, total quality management, to Markham, 'Baldrige Award (beyond the core of which is fixed) 4 phase.
  U.S. business community in the practice of TQM, TQM think too general, no figures, but also that the TQM philosophy of the East find it difficult to adapt the western culture, and TQM's 'continuous improvement' is also quite slow-paced doubt, then their new ---- Six Sigma management theory.