A Level Computer Science OCR Practice Exam 2026 - Free Practice Questions and Study Guide

Black Box Testing is focused on examining the functionality of a software application based purely on its input and output without any knowledge of its internal workings or source code. This method emphasizes ensuring that the software behaves as expected when provided with specific inputs, making it an essential practice in validating that the application meets its requirements.

The approach is particularly useful for testing at the system or acceptance level, where testers can execute test cases based on the specifications or user requirements. This allows them to determine whether the software performs correctly and meets the needs of the end-users, irrespective of how these results are achieved internally by the code.

The other options address different aspects of software testing or development. Analyzing the source code pertains to white box testing, which is focused on the internal logic rather than just the inputs and outputs. User experience assessment leans more toward usability testing, which evaluates how easy and satisfying the software is to use, and verifying the installation process relates to deployment testing, ensuring that software can be installed and run correctly in the intended environment. Thus, the focus of Black Box Testing remains distinctly on functional outcomes derived from specific inputs.