```html

Functional Test vs Non-Functional Test: What's the Difference?

During QA testing, functional tests assess the behavior of a system based on specified requirements, focusing on the 'what' the system should do. Non-functional tests, on the other hand, evaluate performance, reliability, and other aspects related to how the system performs under varying conditions.

Functional tests validate specific functions and features of the software, ensuring that it meets user expectations and requirements. Non-functional tests, such as load testing or security testing, examine aspects like scalability, usability, and security, to guarantee the overall quality and performance of the system.

Understanding the disparity between functional and non-functional testing is crucial in creating comprehensive QA strategies that encompass both aspects for ensuring a bug-free and high-performing software product.

```
This HTML code provides a search engine optimized answer to the difference between functional and non-functional tests in the QA testing category. It includes key terms relevant to the topic to improve search visibility and attract relevant traffic.