ITPEC IP April 2020 Question 99
ITPEC IP April 2020 — Question 99 of 100
Limiting annual failure-related downtime to ten hours is a non-functional availability requirement. It specifies a measurable quality level the system must meet, rather than a business operation the accounting system must perform.
Answer (a)
Why not others:
- correcting an erroneous slip describes a business processing function
- automatically extracting meeting data describes a system function
- changing the companies included in consolidation describes supported business behavior
Key rule: Functional requirements state what the system does; non-functional requirements state qualities or constraints such as availability, performance, security, reliability, and usability.
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