Functional testing is a type of software testing that verifies whether a software application or system performs its intended functions correctly as per the business requirements. It involves testing individual software functions, features, and components, and ensuring that they work as expected and meet the specified requirements.
Functional testing typically involves creating test cases that cover all possible scenarios and conditions, and executing these test cases to verify the functionality of the software application. The aim of functional testing is to identify any defects or issues in the software application that could impact its performance or usability, and to ensure that the software application meets the needs of the end-users.
Here's an example of functional testing:
Suppose a software application is developed to allow users to create and share documents with other users. The functional testing of this software application would involve verifying whether all the features related to document creation and sharing are working as expected.
The test cases for functional testing in this case may include scenarios such as:
Verifying whether a new user can create an account and log in to the application.
Verifying whether a user can create a new document, edit it, and save the changes.
Verifying whether a user can share the document with other users, and whether the other users can access the document.
Verifying whether the user can delete the document and whether the document is removed from the system.
By executing these test cases and verifying the functionality of the software application, the functional testing team can identify any defects or issues that may impact the user experience, and ensure that the software application meets the specified requirements.
