What does the testing phase primarily focus on in the software development lifecycle?

The testing phase in the software development lifecycle predominantly focuses on identifying and fixing bugs. This is a critical stage where the software is rigorously examined to ensure it meets the specified requirements and functions as intended. Testers run various test cases, including functional tests, integration tests, and system tests, to uncover any defects or discrepancies in the software.

During this phase, the development team aims to uncover issues that could affect the software's performance, usability, or reliability, ensuring it is stable before it is deployed. By systematically identifying and rectifying bugs, the team can enhance the software's overall quality, leading to user satisfaction and reduced costs associated with post-release fixes.

The other options, while important aspects of software development, do not specifically align with the primary focus of the testing phase. Finalizing project documentation typically occurs towards the end of the development process, gathering user requirements is conducted in the planning phase, and planning for future enhancements is part of the maintenance and update phase after the software has been released.