Use Case Testing and its elements

Use Case Testing

What is the Use Case?

A use case is an approach for system analysis that identifies, clarifies, and organises needs. Use cases are a collection of conceivable sequences of interaction between the system and the user in a specific environment to achieve a specific goal.

It is a document of action performed by the user and how the system behaved on it.

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Elements of Use Cases

A use case has three major elements i.e Actor, Action, System

Actor :- Is a user that interacts with the system, and performs some functions to achieve a goal.

Action :- Is a system response, behavior, and final outcome that completes the process.

System : - The process and steps taken to reach the end goal, including the necessary functional requirement and their anticipated behavior.

Types of Use Case :-

1). Basic Use Case :- In this method the positive aspect of the application, and the positive scenarios are tested with valid data.

2). Alternate Use Cases :- In this case the alternate method is used to test the error handling of the system with alternate values.

3). Boundary Use Case :- This is the method of testing the use case at maximum and minimum input values.

4). Negative Use Case : - In this case, negative inputs are used to test the use case to detect and prevent errors.

5). Integration Use Case :- In this method of testing, the use case is being tested to process data within the system.

6). Performance Use Case :- In this case the objective of testing is to test the scalability, reliability, and response time of use cases.

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Prerequisites for building Use Case Testing plan

• Complete and thorough understanding of the system functionality.
• Evaluate the associated risks and dependencies in the initial project stages.
• Establish a proper communication plan and share it well with required stakeholders.
• Timely and prompt communication between changes of scope and requirements.