What is the difference between Use Case, Test Scenario and Test Case

 

Use Case

Test Case

Test Scenario

Describes the interaction between a system and its users or external entities.

A test case is a group of conditions under which a tester will determine whether the developed system is working as per the expectations or not.

A test scenario is a high-level document that describes end-to-end functionality to be tested. 

Provides a high-level view of how users interact with the system to achieve specific goals or tasks.

Provides detailed steps and expected outcomes for executing specific tests to validate the behavior of the software.

The test scenarios are those derived from the use case and give the one-line information about what to test.

based on system requirements.

Test cases are derived from test scenarios.

Test scenarios are usually derived from documents like use case, SRS, BRS, etc. 

Use cases are designed by business analysts

Test cases are designed by test engineers.

Test cases are designed by test engineers.

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