Research And Practice Of Quality Maturity Model

The final quality of products results from the accumulation of process quality. All process quality is the result of process capability function. The Quality Maturity in this text is to realize the quality level of which a certain products could reach through the joint action of each process capability, on the condition of the set quality management level, products development ability, technology conditions and inspection ability. The purpose is to predict the quality level of products output by organization by research the quality realization ability of organization.On the research background of quality management in the iron and steel enterprises, taking the quality realization process of products in J group as example and based on the full consideration of the contribution of each process to the final product quality, this text is to make integrated research of process ability which is the factor to products quality and construct the relation model of process ability and final products quality, that is, quality maturity model.In the process of research, we take the realization process of products-the process of manufacturing as the research target and the products design and development quality parameters and products inspection quality parameters as the correction factor, to make sure the quality maturity parameters more accurate. Then establish the function relation to predict the products quality target(percent of pass)with the valued quality maturity to supply support for the improvement of the products quality, estimation of the order incomes and marketing strategy.The main research work includes analyzing iron and steel quality life cycle and building the concept of quality maturity index; researching on full digitalization of quality information and establishing seamless connection of technology information and quality information; researching on quality maturity modeling and building quality maturity curve; researching on quality-driven marketing, an application of quality maturity models to enhance Organizational profitability.The outcomes are as follows:the research unitized the processing of design, production process manufacturing and inspection to realize the modeling and full digitalization of quality management; established the method which used quality maturity index quantitatively to predict the normal quality index of similar products, that is, through the establishment of a parameter system to comprehensively evaluate the quality maturity, built a model (as follows) to calculate quality maturity and quantitatively predict a certain product’s quality level that an organization could achieve; revitalized the whole process of quality information, changed original traditional quality management model which only partly analyze the process ability of a single operation; realized digitalized quality management of the whole process, and constructed the whole-process integrated quality information processing system to trace quality footprint formation; established a group of quality maturity curve template, which takes products series as units, for similar products orders strategy, further established a quality-driven marketing order decision-making process module, and realized the fusion of orders targets and workmanship and quality targets.K=[AYX{BY1XE[CY1-i×KY1-i×KJY-i]+[BY2-1×KY2-1]+[BY2-2×KY2-2]}+Az×{[BZi×∑(Cz1-i×KZi×KJW-i)]+[BZJ×KZJ]+[BZB×KZB]}]×Ks(as4.6)...