ITPEC FE Morning October 2019 Question 52
Screens are created for a system that is composed of a total of 100 screens. The breakdown of the 100 screens classified on the basis of size and complexity is shown below.
Number of screens with a “Small” size and “Low” complexity: 30
Number of screens with a “Medium” size and “Medium” complexity: 40
Number of screens with a “Large” size and “Medium” complexity: 20
Number of screens with a “Large” size and “High” complexity: 10
If the total number of person-days for creating all screens is estimated by using the number of person-days for creation shown in the table below, how many person-days are required? Here, a review and revision of all the screens requires five (5) person-days, and project management requires 20% of the total person-days, including the person-days for review and revision.
Number of person-days for creating each screen
Explanation
102 person-days — creation effort from the table, plus the review, plus 20% project management on that subtotal.
- •Small, Low: 30 × 0.4 = 12
- •Medium, Medium: 40 × 0.9 = 36
- •Large, Medium: 20 × 1.0 = 20
- •Large, High: 10 × 1.2 = 12
- •Creation: 12 + 36 + 20 + 12 = 80 person-days
- •With review and revision: 80 + 5 = 85 person-days
- •Project management: 85 × 0.2 = 17 person-days
- •Total: 85 + 17 = 102 person-days
Answer (d)
Why not others:
- •(a) 80 — the creation effort alone, without review and project management
- •(b) 85 — adds the review but forgets the 20% for project management
- •(c) 101 — takes 20% of the 80 creation days only, 80 + 5 + 16, although the base must include the review days
Key rule: Multiply each category's unit effort by its count, then apply a percentage overhead to exactly the base the question names.
Project Management · AI-written, may contain errors
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