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In the study of software project estimation, the Software Equation is a model with multiple variables based on assumptions of a specific distribution of effort throughout the entire length of a software development project. The models basis was formed through analysis of productivity data collected from over 4000 modern day software development projects. The software equation was derived from the Putnam-Norden-Rayleigh Curve which can be used to show the non-linear correlation between time to complete the project and applied human effort. Model Form The estimation model can be described in the following form. : where *E=Project effort measured in person-months or person-years *LOC=a Lines of Code estimate for the project *t=Length of project measured in months or years *B=a "special skills factor"〔 *P=a "Productivity Parameter"〔 ==Defining B== B, the special skills factor, is related to the size of the product. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Software equation」の詳細全文を読む スポンサード リンク
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