Understanding Functional & Non-functional Testing

Software Testing is a process to determine whether an application or software is behaving the same way it was built to and to identify any bugs, defects or errors. 


Functional Software testing

It is a process where the mobile or website application is tested for its functional specifications and requirements. It is done to make sure that the specific conditions are fulfilled by those apps and software. Functional Testing verifies that all the internal functions of your app are working in accordance with the designed specifications. The tests are carried by suitable test case inputs and to compare the obtained result or output with the expected results. 

Types of Functional Testing

  • Unit Testing
  • Smoke Testing
  • Regression Testing
  • Integration Testing

Advantages of Functional testing

  • It helps to enhance the overall behavior of your software
  • This test is based on what a client requires from the software.
  • Software’s operations can be validated by this test.
  • They are easily carried manually by a QA tester.
  • Tests the performance of the product.

Non-functional Software Testing


This type of Testing is performed to test and validate the non-functional specifications of the software and application. It is done to verify that the application behavior is in accordance to the requirements or not. All the aspects that are left out in functional testing, they are covered in non-functional testing. 

It tests whether a software or application is ready to perform with respect to the non-functional constraints and parameters.

Types of Non-Functional Testing

  • Load Testing
  • Stress Testing
  • Scalability Testing
  • Performance Testing

Advantages of Functional testing

  • It helps in improving the overall performance of the software
  • This test is based on what a client expects from the outcome.
  • Software’s behavior can be authenticated by this test.
  • They are difficult to be run manually, hence automated functional testing is preferred.
  • Tests the functionality of the software and applications.

HikeQA is one of the renowned Functional UI Testing companies with over 10 years of experience in different types of Software Testing services such as mobile app testing, website application testing etc. to provide a flawless user experience.