Functional Testing

Exploring Functional Testing

Exploring Functional Testing

Does the product work as designed? Functional testing compares the system’s functions as built against the requirements, verifying whether the new system supports all typical and edge use cases. We prepare a Requirements Traceability Matrix (RTM) to map the original requirements to test cases and ensure that all required features and functionalities are tested and verified to work as expected.

Depending on the stage of software development, functional testing can be performed using both manual and automated testing protocols. Regardless of how it is performed, the goal is to ensure the product functions as expected and all features work correctly.

Typical Functional Testing Scenarios

Unit testing:

This is typically performed by the developer or a peer to ensure the code written performs as intended.

Integration testing:

After all modules are developed and unit tested, typically by multiple developers, the entire system is tested together to ensure all modules work together correctly.

System testing:

After the Integration test System testing verifies that the system interacts with other pre-existing or newly built systems correctly and the data and process flows function properly

Smoke testing:

Checks whether a new software build or version is stable by testing some core functions and if you can continue to perform additional testing.

Regression testing:

Ensures that a new software build or version after a change hasn’t broken previously existing functionality.

Acceptance testing:

Confirms whether an application satisfies the acceptance criteria as specified in the project’s statement of work (SOW). Typically end users of the application help determine whether to accept the system.