The four test levels defined for the common V-model testing approach include which of the following?

The correct answer identifies the four test levels in the V-model testing approach as component, integration, system, and acceptance.

In the context of the V-model, which emphasizes the relationship between development and testing, each level corresponds to specific stages of both development and corresponding testing activities.

• Component testing (also known as unit testing) involves verifying the correctness of individual components or modules, ensuring that each part functions as intended in isolation.

• Integration testing focuses on the interactions between components to detect interface defects and issues that might not be evident when components are tested individually.

• System testing examines the entire system as a whole to validate that it meets specified requirements and works correctly in its environment. This level typically involves both functional and non-functional testing.

• Acceptance testing is conducted to determine whether the system meets the acceptance criteria and is ready for delivery to the end users. This can involve user acceptance testing, where actual users validate the functionality and performance of the system.

The other options do not accurately reflect the established levels of testing within the V-model, which is commonly referenced in software development and testing methodologies. This understanding of the relationship between development and testing stages is crucial for effective quality assurance in software projects.