Test all functions of the specified business, write test cases, execute test cases, issue test reports and BUG lists, and use special BUG management tools for test management.

Test the characteristics and actionable behavior of a product to determine that they meet design requirements based on product characteristics, operational descriptions, and user scenarios. Functional testing of localized software to verify that the application or site works correctly for the intended user. Use the appropriate platform, browser, and test scripts to ensure that the target user experience will be good enough, as if the application was specifically developed for that market. Functional testing is the testing of software according to functional requirements in order to ensure that the program runs as expected. All features and functions of a system are tested to ensure compliance with requirements and specifications.

Only need to consider the need to test each function, do not need to consider the internal structure of the whole software and code. Generally starting from the interface, architecture of software products, in accordance with the requirements of written test cases, the input data between the expected results and the actual result evaluation, put forward more make the product meet the needs of users.