What are the 4 types of quality control?

[vishwanathoils]

What are the 4 types of quality control?

[Sophiaparker]

The techniques and activities involved in Quality Control can be divided into four levels of operation:
First-line control: Instrument performance check.
Second-line control: Check of calibration or standardization.
Third-line control: Batch control (control sample, identity check).

[MarcS]

Quality control can be done in several ways. An x-bar chart, Six Sigma, 100 percent inspection mode, and the Taguchi Method are examples of these.

The X-bar chart is a frequent type of quality control chart, with the Y-axis tracking the degree to which the deviation of the tested attribute is acceptable.
In quality control, the Taguchi method prioritizes design above the manufacturing process, attempting to prevent production deviations before they exist.
The 100% inspection approach necessitates data on the manufacturing process as well as inventory analysis tools.
Six Sigma employs a five-factor approach (DMAIC) to define, measure, analyze, improve and control to assist businesses in identifying and resolving quality control issues.

[Akshay_M]

There are a wide range of quality control methods, including:

Control Charts: A graph or chart is used to study how processes are changing over time. Using statistics, the business and manufacturing processes are analyzed for being “in control.”
Process Control: Processes are monitored and adjusted to ensure quality and improve performance. This is typically a technical process using feedback loops, industrial-level controls, and chemical processes to achieve consistency.
Acceptance Sampling: A statistical measure is used to determine if a batch or sample of products meets the overall manufacturing standard.
Process Protocol: A mapping methodology that improves the design and implementation processes by creating evaluative indicators for each step.

[dazzle]

There are several methods of quality control. These include an x-bar chart, Six Sigma, 100% inspection mode, and the Taguchi Method.