Perhaps it is difficult to explain any abstraction without a material example that can be easily touched and convinced of its reality. I thought for a long time what could serve as such a material embodiment of the concepts of testing, quality control and quality assurance for me in preparation for the interview.
Something familiar was required, which I was quite well versed in and could say that this subject is the embodiment of the term "quality". And he came up with - multi-subject Swiss army knives, they are time-tested, the design is constantly developing and improving, while maintaining its originality.
Below is a brief, rather simplified and possibly overly amateurish understanding of the difference between these three areas.
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QC(quality control) , . , .
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QA (quality assurance) , , , , , .
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