这两者还是存在区别的,,不同统称为项目群管理。从下面的定义中,我们就能领会到二者基本的区别。 According to PMBOK (2004), a program consists of several associated projects that will contribute to the achievement of a strategic plan. A portfolio is a collection of projects and/or programs and other work grouped together to facilitate effective management of that work to meet strategic business objectives.