建设工程项目的全寿命周期包括三个时期:决策时期、实施时期和使用时期。全寿命周期下的工程集成化管理研究的核心思想,就是把全寿命周期的三个决策阶段视作一个完整的系统,它的出发点是整个工程项目的收益。 Construction project life cycle includes three periods: the decision-making period, the implementation of the period and the use of time. The core idea of ​​integrated engineering management in the whole life cycle is to regard the three decision-making stages of the whole life cycle as a complete system. Its starting point is the return of the whole project.