Discussion
Which model assumes that effort and development time are functions of product size alone ?
Answer: A
The model is Basic COCOMO.
Boehm's Basic COCOMO estimates effort and development time from product size alone:
\[ E = a\,(KLOC)^{b}, \quad D = c\,E^{d} \]
with constants depending only on whether the project is organic, semi-detached or embedded.
Intermediate COCOMO multiplies the estimate by an effort adjustment factor from 15 cost drivers (product, hardware, personnel and project attributes), and Detailed COCOMO applies those drivers phase by phase, so neither depends on size alone. 'COCOMO' on its own names the whole family.
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