Agile Business Analysis Practice Exam 2025 - Free Agile Business Analysis Practice Questions and Study Guide

The primary purpose of nonfunctional requirements is to define quality attributes and design constraints of the solution. Nonfunctional requirements specify how a system performs its functions rather than what functions it performs. This includes aspects such as performance, usability, reliability, security, and maintainability.

By establishing these quality attributes, nonfunctional requirements ensure that the system meets certain standards that contribute to user satisfaction and operational efficiency. They serve as critical metrics for how well the functional requirements are implemented and help to shape decisions about the technology stack, architecture, and design choices involved in developing the solution.

While functional requirements detail what the system should do, nonfunctional requirements provide necessary benchmarks and limits that guide the overall user experience and system performance, ensuring that the final product is not only functional but also meets the essential quality standards expected by stakeholders.