The ability of stakeholders to influence the final characteristics of project's product and the final cost of project is highest at the start and gets progressively low as the project continues. The major contributors to this phenomenon is that the cost of changes and error correction generally creasing as the project continues. how comes? 项且干系人影响项目最终成本和项目产品最终特性的能力在项目开始时最高，随着项目进展通常会逐步降低。产生这一现象的主要原因是，随着项目的进展，变更和错误纠正的成本通常会与日俱增。
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科技项目
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