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GATE | GATE-CS-2015 (Set 3) | Question 65

  • Last Updated : 28 Jun, 2021

Consider a software project with the following information domain characteristic for calculation of function point metric.

  Number of external inputs (I) = 30
  Number of external output (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 he 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) 212.05
(C) 305.09
(D) 806.9


Answer: (A)

Explanation: Function point metrics provide a standardized method for measuring the various functions of a software application

The value of function point metric = UPF * VAF

Here,
   UPF: Unadjusted Function Point (UFP) count 
   VAF: Value Adjustment Factor


UPF  = 4*30 + 60*5 + 23*4 + 8*10 + 7*2 = 606

VAF = (TDI * 0.01) + 0.65

Here TDI is Total Degree of Influence
TDI = 3*4 + 0*4 + 4*6 = 36

VAF = (TDI * 0.01) + 0.65
    = 36*0.01 + 0.65
    = 0.36 + 0.65
    = 1.01

FP = UPF * VAF
   = 1.01 * 606 
   = 612.06 

Refer https://cs.uwaterloo.ca/~apidduck/CS846/Seminars/abbas.pdf


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