Which statement reflects a functional requirement?

Which statement reflects a functional requirement?

• A. Describe the capabilities of the system
• B. Describe what the user should be able to do with the system
• C. Describe the general and technical constraints of the system
• D. Both A and B

Answer: (D)

Functional requirements describe what the system should do—its behaviors and the actions it must support for users. Describing the capabilities of the system communicates the functions it provides, while describing what the user should be able to do with the system specifies the user interactions and tasks the system enables. General and technical constraints cover limitations and quality attributes like performance or security, which are non-functional aspects rather than functions. So, statements about what the system can do and what users can accomplish with it together express its functional requirements, making them the best choice. For example, “the system shall generate patient reports” (capability) and “the user shall be able to generate reports by clicking a button” (user action) are functional in nature.

Functional requirements describe what the system should do—its behaviors and the actions it must support for users. Describing the capabilities of the system communicates the functions it provides, while describing what the user should be able to do with the system specifies the user interactions and tasks the system enables. General and technical constraints cover limitations and quality attributes like performance or security, which are non-functional aspects rather than functions. So, statements about what the system can do and what users can accomplish with it together express its functional requirements, making them the best choice. For example, “the system shall generate patient reports” (capability) and “the user shall be able to generate reports by clicking a button” (user action) are functional in nature.