Non-Functional Testing

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Non-functional testing is the testing of a software application or system for its non-functional requirements: the way a system operates, rather than specific behaviours of that system. This is in contrast to functional testing, which tests against functional requirements that describe the functions of a system and its components. The names of many non-functional tests are often used interchangeably because of the overlap in scope between various non-functional requirements. For example, software performance is a broad term that includes many specific requirements like reliability and scalability.

Non-functional testing includes:

  • Baseline testing
  • Compliance testing
  • Documentation testing
  • Endurance testing
  • Load testing
  • Localization testing and Internationalization testing
  • Performance testing
  • Recovery testing
  • Resilience testing
  • Security testing
  • Scalability testing
  • Stress testing
  • Usability testing
  • Volume testing

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