在软件测试领域，这两个术语是最重要的，也是密切相关的，只是角度不同。用例用于定义如何使用系统执行特定任务的系统。测试用例被定义为一组测试输入、执行条件和预期结果，它们进一步导致开发特定的测试目标。
用例不是执行的一部分，它只是指定如何执行特定任务的文档的图示。如果我们谈论测试用例，它用于验证由测试人员开发的软件，用于验证软件是否按要求工作。
让我们看看表格形式的一些重要区别：
| Comparison parameter | Use Case | Test case |
|---|---|---|
| Definition | A sequential actions which is use to describe the interaction among the role and system to maintain a specified objective, | A Group of test inputs, conditions and variables by which the charcaterstics of the software is defined. |
| Goal | To reach the last operation follow all sequential operation | validating the software as it is working fine or not. |
| Iteration | it follows different paths | it follows single test case is tested at a time |
| Dependency | it is dependent on the requirements | it is dependent over the use case |
| Requirement | Documents and research is required | Test inputs scripts and each test scripts complete one step |
| Completion | complete all step once | The testing is done again and again then finish. |
| Interaction | User | Results |
| Working | it is working as following the step by step function ability of the software. | it is working with the help of testers to validate the software |