Quality control (QC) is a function located somewhere in or close to the operations unit.
For goods, the process involves statistical sampling and measurement of parts of the output from manufacturing.
For services, quality control involves actual field sampling of ongoing operations.
Quality control’s primary purpose is to verify that goods or services produced meet the specifications established for them.
A secondary purpose of quality control is to analyze the operations function, seek causes for product deficiencies, answer customer complaints, etc.
- ^ American Marketing Association, AMA Dictionary.