Which one of the following is the correct estimation model based on software…
2025
Which one of the following is the correct estimation model based on software equation?
- A.
E=[LOC×B0.222/P]2×(1/t4)
- B.
E=[LOC×B0.333/P]3×(1/t4)
- C.
E=[LOC×B0.444/P]4×(1/t3)
- D.
E=[LOC×B0.111/P]6×(1/t3)
Attempted by 44 students.
Show answer & explanation
Correct answer: B
Correct estimation model: E = [ (LOC × B^(0.333)) / P ]^3 × (1 / t^4)
Why this is correct:
The exponent 0.333 on B equals 1/3; raising the bracket to the 3rd power restores full influence of B when the bracket is expanded ( (B^(1/3))^3 = B ).
Time appears as 1/t^4, indicating effort scales inversely with the fourth power of schedule length in this model; the combination of bracket and time exponents gives the standard scaling relationships used in the software equation.
Other answer choices use different numeric exponents (for B, the bracket power, or the time exponent) and therefore do not match the established form of the equation.
Quick check: writing the bracket as [ (LOC × B^(1/3)) / P ] and then cubing it yields the intended scaling; this confirms the choice above is the correct representation.
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