What is Non-Functional Testing? - TestingQ.com

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What is Non-Functional Testing?

The non Functional Testing is the type of testing done against the non functional requirements. Most of the criteria are not consider in functional testing so it is used to check the readiness of a system. Non-functional requirements tend to be those that reflect the quality of the product, particularly in the context of the suitability perspective of its users. It can be started after the completion of Functional Testing. The non functional tests can be effective by using testing tools.

The testing of software attributes which are not related to any specific function or user action like performance, scalability, security or behavior of application under certain constraints.

Non functional testing has a great influence on customer and user satisfaction with the product. Non functional testing should be expressed in a testable way, not like “the system should be fast” or “the system should be easy to operate” which is not testable.

Basically in the non functional test is used to major non-functional attributes of software systems. Let’s take non functional requirements examples; in how much time does the software will take to complete a task? or how fast the response is.

Following testing should consider in non functional testing types:
  • Compatibility testing
  • Configuration Testing
  • Documentation testing
  • Interoperability Testing
  • Installation Testing
  • Load testing
  • Localization testing and Internationalization testing
  • Maintainability Testing
  • Operational Readiness Testing
  • Performance testing
  • Recovery testing
  • Reliability Testing
  • Security testing
  • Scalability testing
  • Stress testing
  • Usability testing
  • Volume testing

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