Software Engineering - Requirements Engineering
If a system requirement states: "The system shall be available 99.9% of the time," what type of requirement is this and what does it imply?
If a system requirement states: "The system shall be available 99.9% of the time," what type of requirement is this and what does it imply?
medium📝 Conceptual Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Identify requirement type
Availability percentage relates to system reliability, a quality attribute.Step 2: Classify as non-functional
Since it describes how well the system performs, not what it does, it is non-functional.Final Answer:
D -> Option AQuick Check:
Reliability = Non-functional requirement [OK]
Quick Trick: Reliability and uptime are non-functional [OK]
Common Mistakes:
- Mistaking uptime as functional behavior
- Confusing hardware specs with reliability
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