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Functional Points Calculation 1

Given the following values, compute F.P when all complexity adjustment factors and weighting factors are average.

• User I/P = 50
• User O/P = 40
• User Inquires = 35
• User Files = 6
• External Interfaces = 4

Functional Unit	Wighting Factors
	Low	Average	High
External Inputs (EI)	3	4	6
External Outputs (EO)	4	5	7
External Enquired (EQ)	3	4	6
Internal Logic Files (ILF)	7	10	15
External Interface Files (EIF)	5	7	10

Solution:

Here, we are given functional units as:

• User I/P = 50
• User O/P = 40
• User Inquires = 35
• User Files = 6
• External Interfaces = 4

Also we are given,

Complexity Adjustment Factors are average.

0 - No Influences

1 - Incidental

2 - Moderate

3 - Average

4 - Significant

5 - Essential

And Weighting Factors are also average.

AVERAGE complexity weights = {4, 5, 4, 10, 7} for the 5 complexities respectively.

Now,

We know that,

Final F.P = UFP X CAF

Where UFP (Unadjusted Functional Points)

And CAF (Complexity Adjustment Factor)

UFP = 50 x 4 + 40 x 5 + 35 x 4 + 6 x 10 + 4 x 7

UFP = 200 + 200 + 140 + 60 + 28

UFP = 628

CAF = 0.65 + 0.01 (14 x 3)

CAF = 1.07

F.P = UFP x CAF

F.P = 628 x 1.07

F.P = 671.96

Therefore Function Points = 671.96