The estimates could be of any parameter interest: e.g., effort or schedule.
这些估计可以用于所有参数：例如，工作或进度。
Hence, it is impossible to make highly accurate estimates of the effort to meet them.
因此，高度准确地估算满足需求的工作也是不可能的。
Who should make estimates for the effort of a project?
谁该对项目中所要付出的一切做出估算？
Who should make estimates for the effort of a project?
谁该对项目中所要付出的一切做出估算？
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