What do QC, QA, QE and QD mean in quality inspection?

1, QC: the abbreviation of "quality control", the meaning of quality control, quality control, product quality inspection, analysis and improvement after finding quality problems, and the general name of the personnel involved in nonconforming product control.

2, QA: the abbreviation of "quality assurance", the meaning of quality assurance, quality assurance, through the establishment and maintenance of quality management system to ensure product quality without problems.

3.QE: the abbreviation of "quality engineer", which means quality engineer;

4.QD: the abbreviation of "quality development", which means the improvement of quality.

1, QC generally includes:

IQC (incoming quality control)

IPQC (process quality control)

FQC (final quality control)

Output quality control

QC pays attention to products, not systems, which is the main difference between QC and QA, and its purpose is the same as QA, which is to "meet or exceed customer requirements".

2.QA generally includes system engineer, SQE (supplier quality engineer), CTS (customer technical service personnel), 6sigma engineer, calibration and management of measuring instruments, etc. QA should not only know where the problems are, but also know how to formulate solutions to these problems and how to prevent them in the future. QC should know that it only controls the problem, but it doesn't necessarily know why it should be controlled like this.

3.QC mainly focuses on the quality inspection activities afterwards, and the default error is allowed. We expect to find and choose mistakes. QA is mainly a quality assurance activity in advance, focusing on prevention, hoping to reduce the probability of mistakes.