The statement regarding report Y's display time represents which type of requirement?

The statement regarding report Y's display time is classified as a non-functional requirement because it pertains to how the system performs rather than what the system does. Non-functional requirements define the quality attributes, system performance, security, and usability aspects of a system. In this case, the display time specifies a performance aspect—how quickly the report should be presented to the user.

Specifying a display time sets a target for the system’s operation, influencing its design and implementation but not dictating the actual functionality of generating the report itself. Non-functional requirements like this improve user satisfaction and system usability but focus primarily on the expectations regarding performance and efficiency.

In contrast, other types of requirements such as constraints refer to limitations or restrictions within which the system must operate, usability requirements typically describe how easy and satisfying a system is to use, and reporting requirements would detail the specific content and format of the report itself.