在市场经济条件下,企业存在的根本目的就是获取效益(或利润),而效益是由收入和成本之差决定的。工程项目的管理效益很大一部分都体现在工程项目的成本上,而工程项目的成本是指在这个项目施工的全过程中的全部生产费用的总计。提高工程项目管理效益水平的一个重大突破就是恰到好处的缩减节省这些直接成本和隐性成本。 Under the condition of market economy, the fundamental purpose of existence of an enterprise is to obtain the benefit (or profit), while the benefit is determined by the difference between income and cost. A large part of the management benefits of the project are reflected in the cost of the project, and the cost of the project refers to the total cost of production in the entire process of construction of the project. A major breakthrough in improving the efficiency of project management is the reduction of these direct costs and hidden costs.