Consider a software project with the following information domain…
2025
Consider a software project with the following information domain characteristics for calculation of function point metric
Number of external inputs (I) = 30
Number of external outputs (O) = 60
Number of external inquiries (E) = 23
Number of files (F) = 08
Number of external interfaces (N) = 02
It is given that the complexity weighting factors for I, O, E, F and N are 4, 5, 4, 10 and 7, respectively. It is also given that, out of fourteen value adjustment factors that influence the development effort, four factors are not applicable, each of the other four factors have value 3, and each of the remaining factors have value 4. The computed value of function point metric is
- A.
612.06
- B.
1.01
- C.
606
- D.
0.65
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Correct answer: A
To calculate the Function Point (FP) metric, we first determine the Unadjusted Function Points (UFP). Using the given counts and weighting factors: UFP = (30×4) + (60×5) + (23×4) + (8×10) + (2×7) = 120 + 300 + 92 + 80 + 14 = 606. Next, we calculate the Value Adjustment Factor (VAF). There are 14 total factors; four are not applicable (value 0), four have value 3, and the remaining six have value 4. The sum of these values is (4×0) + (4×3) + (6×4) = 12 + 24 = 36. The VAF formula is 0.65 + (0.01 × sum), which yields 0.65 + 0.36 = 1.01. Finally, FP = UFP × VAF = 606 × 1.01 = 612.06. Option B (1.01) represents only the VAF, while Option C (606) is just the UFP. Thus, 612.06 is the correct final metric.