While individual development effort cannot always be assessed with such general statistics, these Numbers can be used as a guideline to establish benchmarks and for project estimating purposes.

虽然各项开发工作并非始终可以使用这样的一般统计信息进行评估，但是这些数字可用作建立基准的指导原则和用于项目估计目的。

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Performance feedback should also be reviewed and project data retained to refine the estimating process, itself.

执行情况反馈也应当被回顾，项目数据被保留，从而重新定义评估的处理过程。

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For technical leaders, project planning, estimating, and tracking are required in addition to having strong technical and technical leadership skills.

对于技术负责人，除了具备很强的技术和技术领导技能外，还必须进行项目计划、评估和跟踪。

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The discrepancy between the original cost and the actual cost came in part because contractors originally were "overly ambitious" when estimating the project, Fischer said.

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Dr Amy Mainzer, principal investigator on the Neowise (Near-Earth Wise observations) project at the Jet Propulsion Lab (JPL) in California, said that "estimating the ages and origins of the asteroids should help us to correlate events on Earth and impact craters on the Moon with what is going on in the Solar System".

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