存在丰富的关于现代投资组合概念和基于风险的方法的文献和知识，软件项目经理可以加以利用以增强他们的管理方法。

There is ample literature and knowledge on modern portfolio concepts and risk-based approaches that software project managers can draw upon to enhance their management methods.

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几乎所有的项目经理都需要除了会计管理以外的关于财务技巧方面的知识和方法。

Nearly always the project manager will need certain knowledge of financial techniques and systems along with accounting principles.

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一个成功的、有效的项目组合管理实施的关键是一个知识渊博的项目组合经理以及一个包含项目管理原则的支持过程。

The keys to a successful and effective PPM implementation are a knowledgeable portfolio manager (s) and a supporting process that incorporates project management disciplines.

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