Funtional Testing

What is Functional Testing? Types of Functional Testing

Funtional Testing

What is Functional Testing? Types of Functional Testing

Functional Testing is essential to ensure that the application that you have developed is ready for release. Functional tests are a way to define your system’s functionality. It requires that the tester validates the application to verify against client’s requirements. Functional Testing focuses on customer requirements, while Non-functional Testing focuses on customer expectations.

Functional testing is very important because it analyzes the individual components of an application in the context of the whole application. It examines one item, then identifies the integration points between it and other parts of an application to formulates a strategy for inspecting those weak spots. Application weaknesses are often found where parts of the application come together. It is a skilled work for exploiting these weaknesses to find bugs.

Functional testing in an organization will only succeed if it has clear quality fundamentals and everyone understands how testing contributes to the company’s goals. This testing is just one part of a comprehensive testing strategy. Depending on your company’s requirements and expectations, you should consider different testing activities, such as load, performance, and security testing.

Functional testing is different from other types because it closely matches the user’s experience.

It is a test of functionality and not structure. This testing is done from the user’s perspective which ensures that the system performs as users expect it to. This type of testing involves testing functionality and ensuring that output is consistent with the requirements.

What is Functional Testing?

Functional testing involves testing the ‘Functionality” of software or applications. It checks the software’s behavior against the Requirement Specification or Software Specification given by client. Based on this data, a set of test cases are prepared. The software is tested in real-world conditions to verify that the software produces the expected result. This is the Black Box Method. It is mostly done manually, but it effectively finds bugs.

Smoke Testing:

This testing is done before any actual system testing. It checks if critical functionality to perform further testing. It saves time and allows you to test the application without installing it again. It is a general way to test the application.

Sanity Testing:

This type of testing is where only one functionality or bug is fixed. It checks whether the functionality works as intended and if the changes in related components cause any other problems. This is a particular way to test the application.

Integration Testing:

It occurs when multiple functions or components are combined to create a system. This tests the software’s functionality when its components are combined to form a single unit.

After receiving the software build, it is done to verify that all bugs have been fixed. This test verifies that the bug has been fixed and confirms that the software works as expected.

Regression Testing:

This testing is executed to make sure that the fix applied for the bugs or new feature development have not created and glitch in existing functionality of an application. Regression testing normally being performed prior every release.

User Acceptance Testing:

It is where the application’s user comfort and acceptance are tested. This includes considering their ease of use. Clients or end-users are provided with a trial version of the software to test. This is known as Beta Testing or end-user testing.


Functional testing is one the vital testing of an application which plays an important role for any software product lifecycle. We at Sapizon Technologies, help our client to make sure their software solution is ready to hit the market.

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