A system is being enhanced to simplify screen navigation for users.

Structural testing, also known as white-box testing, focuses on the internal structure of the software. It includes testing all paths, achieving decision coverage, and ensuring that all branches within the component calls are tested. Ensuring that users can navigate to all fields on the screen, however, is a form of functional testing, which focuses on the behavior and usability of the application from the user's perspective, rather than its internal structure​​.