How are quality assurance and quality control different?

As a software development project manager, you must include quality assurance and quality control in your practices. You can explain to the interviewer how each of these is used, their benefits, and when to apply them. You may also want to state a preference that results in a more efficient and effective software development lifecycle and a better-quality product.

"There are several differences between quality assurance and quality control. While both ensure that product quality is maintained in the long run, I believe quality assurance is the most important. This practice provides ongoing quality reviews at each stage of the development cycle, which identify issues before they are compounded during later stages. I also incorporate quality control at the end of the project utilizing the services of the quality team to identify any errors we may have missed."