项目管理就是把知识、技能、工具和技术应用到项目活动中去，以满足或超过项目投资者的要求和期望。



满足投资者的要求和期望将涉及下述各因素间对竞争性需求进行的平衡：



范围、时间、成本和质量；

具有不同要求和期望的投资者；

已识别需求及潜在需求[期望]。-Project management is the knowledge, skills, tools and techniques to project activities to meet or exceed project requirements and expectations of investors. To meet the demands and expectations of investors, will involve the following factors on the demand for competitive balance: scope, time, cost and quality　have different demands and expectations of the investors　has been to identify needs and potential demand [expectations].