Learn how does functional testing work

Functions are tested by feeding input and verifying the output to check what the system does. The testing may involve checking of APIs, database, security, user interface, client/server applications and functionality of the Application Under Test. The internal structure, code, performance, and environmental factors are typically not considered in Functional Testing.

The purpose of functional testing is primarily to ensure usability, accessibility and requirement specs testing. Needless to say, Functional Testing is crucial for the quality of the software. It verifies that a product or application will function properly and optimally for the users.

Learn how does functional testing work
Learn how does functional testing work

There are many testing methods. The two primary techniques are white box testing and black box testing although any of the following are often used:

  • Unit testing
  • Smoke testing
  • User acceptance testing
  • Integration testing
  • System integration testing
  • Localization testing
  • Regression testing
  • Globalization testing

Top Functional Testing Tools

  • Selenium
  • Telerik Test Studio
  • Micro Focus Unified Functional Testing 
  • Sahi
  • TestComplete.
  • TestingWhiz

Why Functional Testing?

All testing strategies need Functional Testing at their core. Functional verification should be a continuous process during the development cycle and through production. It ensures that:

  • End-user requirements are met
  • Application development goals are fulfilled
  • Regulatory and compliance requirements are met
  • Identifies incorrect specification
  • Finds initialization errors
  • Looks for interface errors
  • Also finds termination errors

Conclusion

Functional Testing is invaluable to ensure the smooth and flawless operation of the product or application. Functional Testing test cases, their execution, and results can be better managed using Test Management tools like QMetry Test Management, Micro Focus ALM, Qtest, etc. 

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Learn how does functional testing work

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