The content of quality (zhi liang)

The content of quality (zhi liang) is very rich. Along with the development of social economy and science and technology, it is constantly enriched, improved and deepened. Similarly, people's understanding of the concept of quality has also experienced a historical process of continuous development and deepening. Quality is defined as the degree to which a set of intrinsic properties of an object satisfies a requirement. Quality objectives are defined as "objectives pursued in terms of quality". From the theory of quality management, the theoretical basis of quality objective is behavioral science. The express quality requirement of the product refers to the explicit quality commitment made by the producer to the quality of the product. With respect to these relevant elements, producers should clearly express their views. The general view is that the higher the quality of the product, the better, and the higher the quality, the higher the value, but in fact, this view is not necessarily correct. High quality products are not always popular in the market.