Research On Project Cost Control Based On Improved Critical Chain Earned Value Method

Nowadays,most businesses use cost control methods for the traditional earned value method,earned value method is for the whole project of macro schedule and cost analysis is more suitable for working procedure is simple,but with the development of the era of all kinds of engineering project is increasingly complicated,earned value method in the process more complex engineering project the results are unsatisfactory,and can better serve the enterprise cost control.On the basis of the traditional earned value method,the key chain method,which is more advanced in the progress control method,is introduced.It extends the macro cost control into each working procedure,and makes reasonable scheduling of resource consumption and utilization.It is more applicable in the increasingly complicated engineering projects.Through the study of the earned value method of key chain,this paper found its deficiencies such as lack of perfect model,lack of forecasting links,responsibility is difficult to implement and so on,so it proposed to build progress center,cost analysis center,responsibility center.These three centers establish a relatively reasonable cost control model to improve the critical chain earned value method.The progress center is designed to control the progress of the project.The main method is the key chain method,which can clearly show the logical relationship of the project to the managers,shorten the project duration,and facilitate the cost control.This lays the foundation for the following cost analysis.The cost analysis center includes cost analysis,prediction,early warning and other contents in the whole model.The main methods are earned value method of key chain and introduction of disturbance parameters.It provides the project manager with the basis of the project cost analysis and cost control and is the foundation of the construction of responsibility center.The responsibility center aims to fulfill the responsibility and correct the deviation reasonably.The main method is AHP,which provides the project manager with the responsibility structure of this deviation,speeds up the process of rectifying the deviation,and brings the cost control back to the preset track to reduce the loss.By constructing this model,this paper can effectively shorten the project period,grasp the main contradiction of cost control,forecast cost,and implement responsibility and a series of activities to control the cost,and finally apply it to the actual project,which shows that this model has strong feasibility and operability.