One of the objectives of the project lifecycle is to focus on two key stakeholder drivers: risk reduction and value creation.

项目生命周期的目标之一就是关注两个关键的利息相关者驱动：风险减少和价值创造。

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However, these two objectives (greatest risk and greatest value) are not always fully aligned, which forces a deliberate choice between maximizing early value creation and early risk reduction.

然而，这两个目标(最大的风险和最大的价值)不是总充分结合的，这就迫使在将及早的价值创造最大化和及早的风险减少最大化之间进行谨慎的选择。

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But the important means to achieve these two objectives at the same time is the Earned Value Method which is mean of project cost and schedule co-ordinate control.

而同时实现这两个目标的重要手段就是通过挣值法对工程项目费用与进度进行协调控制。

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