If you want a bug-free product, your QA team must carry out both functional and non-functional testing. QA teams tend to be more familiar with executing non-functional tests to ensures the usability and performance of the product, leading to less time and attention on functional testing where many of the defects often hide. Functional testing doesn’t have to be intimidating. With the understanding of the value that functional testing can bring to your development cycle, your team can then plan how to incorporate functional testing services within your QA testing procedures.