Critical study of the parametric model development process
Abstract: Complex parametric models may consist of many interrelated cost estimating relationships (CERs), as well as other equations, ground rules, assumptions, and variables that describe and define the situation being studied. Models generate estimates based upon certain input parameters, or cost drivers. Parametric models can generally be classified as commercial or company-developed. This review provides practical information about developing, deploying, and maintaining company-developed parametric models. […]