Which two types of test cases are commonly used in Testing and Evaluation?

Which two types of test cases are commonly used in Testing and Evaluation?

• A. Integration testing and regression testing
• B. Black-box testing and white-box testing
• C. Performance testing and acceptance testing
• D. Unit testing and system testing

Answer: (B)

The correct choice highlights two fundamental testing approaches: black-box testing and white-box testing. Black-box testing focuses on evaluating the functionality of an application without any knowledge of the internal workings or code. The tester interacts with the software by providing inputs and observing the outputs, ensuring that the correct behavior is exhibited according to specified requirements. This type of testing is essential for validating that user requirements are met and is often used for system and acceptance testing. Conversely, white-box testing requires an understanding of the internal structure and workings of the application. The tester needs to know how the software is implemented, including algorithms and code paths, allowing for testing of specific functions and logic decisions directly. This technique is often employed in unit testing and integration testing, where the internal components are examined for accuracy and correctness. This distinction is crucial because both testing types serve different purposes: black-box testing is typically aligned with user-centric scenarios, while white-box testing is aimed at the developer's perspective in ensuring code-level correctness. Understanding these two testing methodologies is vital for anyone involved in the testing and evaluation process, as each provides unique insights and ensures software quality from different angles.

The correct choice highlights two fundamental testing approaches: black-box testing and white-box testing.

Black-box testing focuses on evaluating the functionality of an application without any knowledge of the internal workings or code. The tester interacts with the software by providing inputs and observing the outputs, ensuring that the correct behavior is exhibited according to specified requirements. This type of testing is essential for validating that user requirements are met and is often used for system and acceptance testing.

Conversely, white-box testing requires an understanding of the internal structure and workings of the application. The tester needs to know how the software is implemented, including algorithms and code paths, allowing for testing of specific functions and logic decisions directly. This technique is often employed in unit testing and integration testing, where the internal components are examined for accuracy and correctness.

This distinction is crucial because both testing types serve different purposes: black-box testing is typically aligned with user-centric scenarios, while white-box testing is aimed at the developer's perspective in ensuring code-level correctness. Understanding these two testing methodologies is vital for anyone involved in the testing and evaluation process, as each provides unique insights and ensures software quality from different angles.