Fundamentally, the initial cost and schedule estimates are frequently way off.

从根本上说，最初的对成本和工期的评估往往都会失效。

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Stakeholder concurrence on scope, requirements, constraints, and schedule estimates.

涉众在规模、需求，限制以及进度评估上的合作。

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The final Elaboration phase deliverable is a plan (including cost and schedule estimates) for the Construction phase.

最后制定阶段成果是一个计划(包括成本和进度的估计数)的施工阶段。

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Published just a few months ago, the report concluded that the program funding and schedule estimates were overly optimistic in light of the complexity of the challenges facing the program.

WHITEHOUSE: Jacob J. Lew Testimony to House Science Committee, 08/06/1998 | The White House