number of function points of a proposed system

The number of function points of a proposed system is calculated as 500. Suppose that the system is planned to be developed in Java and the LOC/FP ratio of Java is 50. Estimate the effort (E) required to complete the project using the effort formula of basic COCOMO.

Given below :
E = a(KLOC)b Assume that the values of a and b are 2.5 and 1.0 respectively.
i➥ 25 person months
ii➥ 75 person months
iii➥ 62.5 person months
iv➥ 72.5 person months
Answer: Option III 

Easy Explanation by SamagraCS Team:

Definition: Basic COCOMO Model
The basic COCOMO model gives an approximate estimate of the project parameters.
The basic COCOMO estimation model is given by the following expressions:

Effort = a∗(KLOC)b // Formula for Calculate Effort,
Tdev = c∗(Effort)d // Formula for Calculate Development time in month. 

Let’s Solve the Problem,  
 Given Parameters is:
 Total Function Point =500 // Function point means No. of         
 Function or Modules in Projects,
 Each function point have approximate lines of code (LOC) = 50.
 So Total LOC = 500 X 50 = 25000.
 Lines of code(LOC)=25000,
     We can write it KLOC = 25K,
 Multiplicative value 'a' = 2.5,
 Exponential value 'b' = 1.0.

Now put in the formula:

Basic COCOMO formula for Effort = a(KLOC)b 
                                = 2.5×(25)1.0 
                                =2.5 x 25
Now Effort Value is = 62.5 Person Month.

So, Option(III)is correct. 

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