可行性研究是考察项目实施上的()。

组织的接口主要是()。

以下哪一项最好地说明了在信息有限地情况下进行的成本或周期预测的特点 （）

A project manager is planning a project when he discovers that the project has many different phases, and each phase must be done in a sequence . What is the BEST thing the project manager can do？

All of the following are tools for scope verification EXCEPT