Like the estimate figure itself, a value for estimate precision is often not consistent across estimates, particularly when using expert-based methods.
象评估本身一样，评估精度的值在不同的评估下通常也不一致，特别是在使用基于专家经验的方法时。
2
Having a consistent way of conducting estimates includes engaging the right people at the right time in the project's life cycle to perform the estimate.
形成执行评估的一致方法，包括在项目的生命周期中适当的时间让正确的人员加入评估工作中。
3
They are consistent with the Sum Maximum Likelihood Estimate and have consistence and minimum bias.