Project Management Process Groups are linked by the objectives they produce.

项目管理过程组之间是以它们所产生的成果相互联系。

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The project manager always knows why his or her project was selected by management to be done, and makes sure those objectives are met while planning and managing the project.

项目经理总是知道为何启动项目，并确保在规划和管理项目时满足那些目标。

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