ITPEC IP April 2022 Question 47
ITPEC IP April 2022 — Question 47 of 100
The function point method estimates system size from user-visible functions such as inputs, outputs, inquiries, internal files, and interface files. Counts are weighted by complexity to produce function points, which can then support effort and cost estimation. Because it measures functionality, it is less dependent on programming language than counting source lines.
Answer (b)
Why not others:
- (a) is bottom-up estimation using WBS activities
- (c) estimates productivity and effort from lines of code
- (d) is analogy-based estimation using a similar past system
Key rule: Function points measure delivered functional size, while bottom-up, LOC-based, and analogy methods estimate from tasks, code volume, or past projects.
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