What is non functional testing in software testing?

It is testing of “how” the system works. Non functional testing may be performed at all test levels. The term non-functional testing describes the tests required to measure characteristics of systems and software that can be quantified on a varying scale, such as response times for performance testing. Types of Non-functional testing are performance testing, load testing, stress testing, usability testing, maintainability testing, reliability testing and portability testing.

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3 thoughts on “What is non functional testing in software testing?

  1. Testing the application against client’s and performance requirement. Non-Functioning testing is done based on the requirements and test scenarios defined by the client.

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