The article distinguishes between functional and non-functional testing in software development. Functional testing ensures that application features function according to specifications, using black-box methods that focus on inputs and expected outputs. Examples include testing login processes and payment gateways. Meanwhile, non-functional testing evaluates aspects such as performance, security, and user experience, critical for success, especially during high user volume. Together, these testing types help ensure both the functionality and overall robustness of software in production, thereby enhancing the user experience.
Functional testing validates whether software features work as intended, focusing on user interactions and expected outcomes without diving into the internal code.
Non-functional testing addresses performance, security, and user experience, essential in maintaining an application's success during high user demand.
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