Functional Testing vs Non-Functional Testing

Functional testing and non-functional testing are two important types of software testing that serve different purposes in evaluating software functionalities. Here is a brief explanation of the difference between the two:

Functional Testing:

Functional testing focuses on validating the specific functionality of the software application. It involves testing individual functions or features of the software to ensure that they work as expected. The main goal of functional testing is to verify if the software meets the specified requirements and performs its intended functions correctly.

Non-Functional Testing:

Non-functional testing, on the other hand, evaluates the non-functional aspects of the software such as performance, usability, reliability, and scalability. Unlike functional testing which focuses on what the system does, non-functional testing focuses on how well the system performs under different conditions.

Overall, while functional testing ensures that the software meets the functional requirements, non-functional testing ensures that the software meets the performance, security, and other non-functional requirements.

During software testing, both functional and non-functional testing are essential to ensure the overall quality and reliability of the software product.