Functional vs Non-Functional Testing

  Quality Thought is recognized as the best software testing institute in Hyderabad, offering top-notch training in manual testing, automation testing, and full stack testing tools. With a focus on industry-relevant curriculum and hands-on practice, Quality Thought prepares students for real-world software testing challenges. The institute provides expert-led training on popular tools and frameworks like Selenium, TestNG, Jenkins, Git, Postman, JIRA, Maven, and Cucumber, covering both frontend and backend testing essentials.


Quality Thought’s Full Stack Testing course is specially designed to make students proficient in both manual testing fundamentals and automated testing tools, along with exposure to API testing, performance testing, and DevOps integration. The institute stands out for its experienced trainers, live projects, placement support, and flexible learning options including classroom and online modes.


Whether you are a fresher aiming for a job or a working professional looking to upskill, Quality Thought offers customized learning paths. Its strong industry connections ensure regular placement drives and job interview 


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Functional vs Non-Functional Testing

Functional Testing and Non-Functional Testing are two main categories of software testing that serve different purposes in ensuring software quality.


Functional Testing focuses on verifying that the software performs its intended functions correctly. It checks the application's behavior against the specified requirements. This type of testing answers the question: "What does the system do?" It includes tests like unit testing, integration testing, system testing, and user acceptance testing. Common examples are login verification, data submission, and transaction handling. Testers provide specific inputs and validate the output against expected results.


Non-Functional Testing, on the other hand, evaluates how well the system performs rather than what it does. It checks the application's performance, reliability, scalability, security, and usability. This type of testing answers the question: "How does the system behave under certain conditions?" Examples include load testing, stress testing, security testing, and usability testing. It helps ensure the system meets performance standards and user expectations.


Key Differences:


Functional tests features; Non-Functional tests performance and quality.


Functional testing is based on user requirements; non-functional is based on system expectations.


Both are essential for delivering high-quality software.


Using both ensures the software not only works correctly but also delivers a good user experience.


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