cost estimation model
For software the expected size of the software (lines of code) is usually used as the main input to a cost estimation model, with other inputs characterizing the main risk factors in the development. An underlying (software estimation model) database of past projects is built up from experience in a particular company or using one software paradigm. Typical software cost estimation models are COCOMO (Barry Boehm) and GECOMO (GEC Software, UK), PRICE S (RCA), PROMPT Estimator (LBMS, UK), and SLIM (Putnam, Norden, Rayleigh model, software from QSM Inc, US). The models make no apportionment of costs to different life-cycle phases, and generally give cost to deliver. Some models (e.g. COCOMO) can be used to estimate maintenance costs.
See also function point analysis.
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