Quality Assurance and Quality Control

What is the difference between Quality Assurance and Quality Control? Is there one?

It is not at all uncommon to hear someone talk about ‘QA’ when what they actually mean is ‘QC’. Or vice versa. Or even perhaps, quality management. Although one must admit that ‘QA’ rolls off the tongue far more easily than QC and a whole lot more easily than ‘QM’.

QA and QC are closely related. They are both part of quality management. But they are different .

Quality Assurance and Quality Control

Quality management

And then there’s quality management, which includes QC and QA as well as a bunch more things.