【正文】
age by stage can be divided into Investment Decision stage,the design and implementation phases. The socalled Project Cost effective control is the optimization of the construction plans and design programs on the basis of in the building process at all stages,use of certain methods and measures to reduce the cost of the projects have a reasonable control on the scope and cost of the approved limits. Engineering and cost management work of the current status of project cost management system was formed in the 1950s, 1980s perfect together. Performance of the country and directly involved in the management of economic activities. Provisions in the design stage to different estimates or budget preparation as well as government。s accession to the world munity,China39。s national conditions of the market economy system goal,learn from the advanced experience of the developed countries,and establish sound market economic laws of project cost management system, efforts to increase the project cost levels. An investment decisionmaking phase of the project cost management construction project investment decisionmaking stage is proposed project proposals。s technical and economic decisionmaking, Cost of the project after the pletion of the project and the economic benefits,with a decisive role in project cost control is an important stage,rationally define and control the direction of the project cost of accurate positioning and building Optimization guiding role. In the decisionmaking phase of the most important is to do a good job feasibility study, the work is done well,returns on investment and can form a good proportion. Otherwise, invest more,less effective,resulting in loss of control and waste of investment. At present,some of the projects planned the owners of departure from the subjective desires of a feasibility study on the lack of scientific proof. Feasibility Study untrue,false or engineering functions obtaining the approval of their superiors,actually put into the feasibility study will be awarded in the study for the project after the smooth functioning buried a lot of hidden problems, lead to insufficient f