Use Case Technique
The use case is functional testing of the black box testing used to identify the test cases from the beginning to the end of the system as per the usage of the system. By using this technique, the test team creates a test scenario that can exercise the entire software based on the functionality of each function from start to end.
In this scenario, there is a tester who represents the user to use the functions of a system one by one. In this scenario, there is an actor who represents the user to use the functions of a software system.
This describes step-by-step functionality of the software application which can be understood with an example, assume that there is a software application of online money transfer. The various steps for transferring money are as follows:
In the last step, if there is a security feature that includes verification of the ATM card number and PIN, then enter the ATM card number, PIN and other required details.
If the system is successfully following all the steps, then there is no need to design test cases for this function. By describing the steps to use, it is easy to design test cases for software systems.