Briefly describe the evolution of production quality management practice and theory.

Briefly describe the practice and theoretical evolution of production quality management;

1, traditiona

Briefly describe the evolution of production quality management practice and theory.

Briefly describe the practice and theoretical evolution of production quality management;

1, traditional quality management stage

At the beginning of the 20th century, people's understanding of quality management was limited to quality inspection. The means used are all kinds of testing equipment and instruments, and the way is to strictly check and carry out 100% inspection. The basic feature of this stage is backtesting. Unable to prevent and control product quality. The production cost is increased. When destructive inspection is needed and the quality characteristics of some products cannot be fully tested, it is more difficult to ensure the quality of some products. Shewhart put forward the concept of controlling and preventing defects, and changed quality management from post-management to process management.

2. Statistical quality control stage

The basic feature is the combination of mathematical statistics and quality management. Shewhart applied the principle of mathematical statistics to quality management and invented the control chart. The appearance of control chart marks the transformation of quality management from simple retrospective testing to inspection plus prevention, and it is also the beginning of forming an independent discipline.

Defects: Too much emphasis on statistical methods of quality control makes people mistakenly think that quality management is statistical methods and that quality management is the business of statistical experts, but most people feel unattainable and daunting. At the same time, its quality control and management is limited to manufacturing and inspection departments, ignoring the impact on the quality of teams in other departments, and offsetting the enthusiasm of employees in other departments for unremitting pursuit of quality.

3, total quality management stage

In 1960s, with the goal of reducing cost, ensuring quality, shortening cycle and improving efficiency, it began to enter the stage of total quality management.