ITPEC IP October 2025 Question 47
ITPEC IP October 2025 — Question 47 of 100
Function Point estimation measures system size from user-visible functions — it counts and weights items such as inputs, outputs, inquiries, internal files, and external interfaces.
Because it measures functional capability rather than programming-language statements, FP can estimate size before the code is written and can support effort and cost estimates across different implementation technologies.
Answer (b)
Why not others:
- (a) is bottom-up estimation from activities decomposed in a WBS
- (c) estimates effort from source lines of code and productivity, not function points
- (d) is analogous estimation based on differences from similar past projects
Key rule: Function points size what users receive; lines-of-code methods size implementation, bottom-up methods sum work, and analogous methods compare history.
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