A Study on Earned Value Method for Uncertain Parameters in Project Integration Control

As traditional Earned Value Method doesn't take the uncertainty of planned index into consideration,this paper combines Earned Value Method with general theories of statistics,introduces the ways of dealing with uncertain information to earned value analysis and puts forward with Earned Value Method of uncertain parameters.By analyzing the statistical regularity of the cost-schedule in work procedure,establishing the control range of project cost-schedule plan,and then obtaining more objective assessing information based on the actual implementation of projects,this method improves the scientific rationality of planned implementation evaluation while expanding the functions of earned value analysis.