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传统挣值法基于确定性与稳定性的项目基准计划,仅考虑和集成了项目时间与项目成本两个参数(要素),忽略了货币的时间价值.针对这些不足,对其进行参数扩展和相关的修正:运用蒙特卡罗法制定具有不确定性的项目的基准计划,考虑和集成了项目范围与项目质量两个参数,将时间因素引入成本度量中.在此基础上,提出和定义了挣值法的有关指标,以期提高挣值法的集成度和准确度.
The traditional earned-value method is based on certainty and stability of the project baseline plan, considering only the two parameters (elements) of the project time and project cost, ignoring the time value of the currency. In view of these shortcomings, the parameter expansion and correlation Amendments: Using the Monte Carlo method to establish a baseline plan for projects with uncertainties, the time scale is introduced into the cost measurement by considering and integrating the two parameters of project scope and project quality. Based on this, we propose and define Earnings Value Law related indicators, with a view to improving the integration and accuracy of Earned Value Law.