UGC NET Computer Science July 2018 – II Question 11

Question 11

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Assume the following regarding the development of a software system P :

- Estimated lines of code of P : 33, 480 LOC
- Average productivity for P : 620 LOC per person-month
- Number of software developers : 6
- Average salary of a software developer : ` 50,000 per month

If E, D and C are the estimated development effort (in person-months), estimated development time (in months), and estimated development cost (in ` Lac) respectively, then (E, D, C) =_________.

Options:

1. (1) (48, 8, 24)
2. (2) (54, 9, 27)
3. (3) (60, 10, 30)
4. (4) (42, 7, 21)

Answer : (2) (54, 9, 27)

Explanation Question 11

Given:
Estimated lines of code(LOC) of P = 33, 480 LOC
Average productivity for P = 620 LOC per person-month
Number of software developers = 6
Average salary of a software developer = 50,000 per month

Solution:
If the average productivity for P = 620 LOC per person-month = one person writes 620 LOC per month

E (Estimated development effort (in person-months)) = Estimated lines of code / Average productivity for P = 33480 (LOC) / 620 (LOC per person months)= 54 person months

D(Estimated development time (in months)) = No of developers required to complete a project in a month/No of available developers= 54/6 (since 6 developers are there)= 9 months

C(Estimated development cost (in ` Lac)) = Average salary 50,000 paid to each 6 developers for 9 months = 50000 x 6 x 9 = 27 lacs

That forms (E, D, C) = (54,9,27)                                 

So, Option (2) is correct answer.

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