Use case vs Test Case

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Use case vs Test Case

What is a Use Case?

A use case is a common concept in software development that explains how a user interacts with a system to achieve a specific goal. It shows step-by-step what happens during the interaction, including inputs, outputs, and expected behavior. Use cases can be written as text or shown in diagrams, helping teams understand what the system should do from the user's point of view.

What is a Test Case?

A test case is a set of instructions created by testers to check if a specific feature or function of a software application works correctly. It includes the test inputs, conditions, and the expected results. Test cases help find bugs and ensure the software is reliable and meets the requirements. Each test case should be clear, linked to the correct feature, and well-documented. Managing test cases properly is key to successful testing and delivering a high-quality product.

Difference between Use Case and Test Case

Use caseTest case
Describes the interaction between a system and its users or external entities.Describes specific inputs, actions, or events to be executed to validate a particular software feature or functionality.
Focuses on the functional requirements and goals of the system from a user’s perspective.It focuses on verifying that the software meets specified requirements and functions correctly under different scenarios.
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.
It helps stakeholders understand the system’s overall behavior and its impact on users. Helps testers ensure that all aspects of a software feature are thoroughly tested, including different inputs, conditions, and scenarios.
Typically written in plain language understandable by non-technical people. Typically written in a more technical language understandable by testers and developers.
It may include diagrams, flowcharts to visualize user interactions with the system.It may include test data, preconditions, and expected and actual results for each test case step.
It is often used during the requirements gathering and analysis phase to define system functionality at a high level.Often used during testing to validate whether implemented features meet specified requirements accurately.
Use cases are created based on application requirementsTest cases are created based on use cases
These are designed by business analystsThese are designed by QA engineers
Use cases are executed by business users or using external softwareTest cases are executed by QA testers (both manual testers and automation engineers)
To create a use case, you need to research the use intended in the real world and document the findings. To create test cases, you require test objectives, test case names, test conditions, test data, and expected results – these are derived from use cases.
Focuses on end-user interaction with the applicationFocuses on validating every feature/functionality of an application


In short, Use cases show how users use a system to reach their goals. Test cases are step-by-step checks to make sure the system works properly. Both help build better software by making sure it meets user needs and works well.

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