Functional Testing Vs Non-Functional Testing – W3Softech

Here we provide you the blog of functional testing vs non-functional testing with a brief explanation and examples including types and tools…

Functional Testing:

Functional Testing is defined as the testing which tests the functions of a software application and checks whether the output results are matched with expected results.

Steps for working progress of Functional Testing:

• It performs testing on main functions
• Identifies the functions and its operations
• Checks the accessibility of the system
• It executes the test cases
• Checks the error conditions
• Finally compares the output results with the expected results

Non-Functional Testing:

Non-Functional Testing is used to test the performance of software application based on customer’s expectations and under specific conditions.

Steps for working progress of Non-Functional Testing:

• Initially tests the performance of a software application
• Optimizes the software application
• Provides appropriate measurements over the software product
• Improves the behavior of a software application
• Provides more reliable and flexible output results

Functional Testing Vs Non-Functional Testing – W3Softech

Functional Testing Vs Non-Functional Testing

Parameters	Functional Testing	Non-Functional Testing
Functionality	It tests what the product does and checks the operations of the software application.	It tests the performance of the software application under specific conditions.
Execution	Generally, it is used to perform before non-functional testing.	It is used to perform after functional testing.
Focus	It performs based on customer’s requirements.	It performs based on customer’s expectations.
Requirement	Functional Requirements are very easy to define.	Non-Functional Requirements are difficult to define.
Usage	It helps to validate the test functions of the software application.	It helps to validate the test performance of the software application.
Objective	It checks whether the actual results are working according to the expected results.	It checks whether the performance of the software application is working under specific conditions.
Manual Testing	Functional Testing is easy to execute by Manual Testing.	Non-Functional Testing is hard to execute by Manual Testing.
Automation Testing	Functional Testing is hard to execute by Automation Testing.	Non-Functional Testing is easy to execute by Automation Testing.
Example Test Case	Check login functionality like if the inputs are valid then app login functions correctly.	After the login, the dashboard should load in 3 seconds.
Testing Types	Beta/Acceptance Testing Integration Testing Interface Testing Regression Testing System Testing Sanity Testing Smoke Testing Unit Testing	Compatibility Testing Compliance Testing Install Testing Load Testing Localization Testing Performance Testing Recovery Testing Reliability Testing Security Testing Stress Testing Usability Testing Volume Testing

Reference: Functional Testing Vs Non-Functional Testing