COCOMO. Estimate uncertainty. The COCOMO model. An empirical model based on project experience. Well-documented, ‘independent’ model which is not tied to a specific software vendor. Long history from initial version published in 1981 (COCOMO-81) through various instantiations to COCOMO 2.
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Prototype system developed using scripting, DB programming etc.
Application composition model
Number of application points
Initial effort estimation based on requirements and design options
Number of function points
Early design model
Effort to integrate reusable components or automatically generated code
Number of lines of code reused or generated
Development effort based on system design specification
Number of lines of source code
PM = (20000 * 30/100) / 2400 = 2.5 man-month.