Difference between Quality Assurance & Quality Control

  • Quality Assurance, QA happens before the deliverable is manufactured. QA makes sure you have the right processes in place for manufacturing and testing.
  • Quality Control, QC happens after the deliverable is finished. QC is the actual testing of product.


  1. For Quality professionals, it is very important to understand the difference between QA & QC. I have compiled a nice article explaining the same concept in simple language. You can read it at http://iso-qms.blogspot.com/2011/09/difference-between-quality-assurance.html