1.SPC: It is a manufacturing control method, which is based on the data collected by the control items in manufacturing, analyzes the process capability, standardizes the process, finds the abnormality in the process, and immediately takes improvement measures to restore the process to normal.
2.MSA: First, ensure the accuracy/quality of the measurement data, and use MSA method to evaluate the measurement system that obtains the measurement data; The second is to ensure the use of appropriate data analysis methods, such as SPC tools, experimental design, variance analysis, regression analysis, etc. MSA uses mathematical statistics and charts to analyze the resolution and error of the measurement system.
3.APQP: Advanced product quality planning (or advanced product quality planning and control plan) is a part of QS9000/TS 16949 quality management system. Its definition is that product quality planning is a structured method to determine and formulate steps to ensure that products meet customers' needs.
4.FMEA: The main purpose is to modify products or processes conveniently and at low cost, so as to alleviate the crisis of later modification and find measures to avoid or reduce these potential failures.
5.PPAP: The main purpose is to determine whether the supplier correctly understands all the requirements of the customer's engineering design records and specifications. And it has the potential to continuously meet these requirements in the actual production process under the condition of implementing the specified production rhythm.