ITPEC FE Morning October 2021 Question 65
ITPEC FE Morning October 2021 — Question 65 of 80
Non-functional requirements define how the system is built and operated, not what it does. Creating technical development standards based on the programming language is a non-functional requirement because it specifies a technical constraint on the development process itself.
Why not others:
- (a) Clarifying data flows between business functions describes business logic — this is a functional requirement
- (c) Defining the scope of system functions determines what the system does — this is a functional requirement
- (d) Specifying interfaces for exchanging information with other systems relates to external design (a later design phase activity), not the requirements definition phase
Key rule: Non-functional requirements cover technical constraints, quality attributes, and development standards — anything about how the system is built or performs, not what business functions it provides.
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