English term (edited): NFR

NFR = Non-functional requirement(s)

https://en.wikipedia.org/wiki/Non-functional_requirement
Non-functional requirements are often called "quality attributes" of a system. Other terms for non-functional requirements are "qualities", "quality goals", "quality of service requirements", "constraints" and "non-behavioral requirements".[2] Informally these are sometimes called the "ilities", from attributes like stability and portability. Qualities—that is non-functional requirements—can be divided into two main categories:
1.Execution qualities, such as security and usability, which are observable at run time.
2.Evolution qualities, such as testability, maintainability, extensibility and scalability, which are embodied in the static structure of the software system.[3][4]