Question: how to calculate vaf in function point?
Answer: VAF = (TDI × 0.01) + 0.65 Each GSC can vary from 0 to 5, TDI can vary from (0 × 14) to (5 × 14), i.e. 0 (when all GSCs are low) to 70 (when all GSCs are high) i.e. 0 ≤ TDI ≤ 70. Hence, VAF can vary in the range from 0.65 (when all GSCs are low) to 1.35 (when all GSCs are high), i.e., 0.65 ≤ VAF ≤ 1.35.