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The relative impacts of selected practices on project cost and schedule

机译：特定实践对项目成本和进度的相对影响

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摘要

Many studies reveal the positive impact of practices use on overall project performance, resulting in a consensus opinion in the industry that implementation of certain practices leads to improvement; yet there have been no definitive studies reporting in a quantitative manner, the relative impact of practices on different project objectives. This study develops models using multiple descriptive discriminant function analyses that divide project cost and schedule performance into four different performance groups. The study then examines the practices that discriminate among these four groups. Finally these results are summarized into'a practice use index categorization for project cost and schedule performance. Critical practices indicating dominant impact on both cost and schedule performance are pre-project planning, project change management and design/ information technology practice. Team building practice is a cost-beneficial practice and zero accident techniques practice is a schedule-beneficial practice, while constructability practice has a balanced bottom line impact on both cost and schedule.
机译：许多研究揭示了实践使用对项目整体绩效的积极影响，从而在业界达成共识，即某些实践的实施会导致改进；但是，尚无定量的权威性研究报告了实践对不同项目目标的相对影响。这项研究使用多个描述性判别函数分析开发了模型，这些分析将项目成本和进度绩效分为四个不同的绩效组。然后，研究检查了区分这四个群体的实践。最后，将这些结果总结为“针对项目成本和进度绩效的实践使用指标分类”。表明对成本和进度绩效都具有主要影响的关键实践是项目前计划，项目变更管理和设计/信息技术实践。团队建设实践是有益于成本的实践，零事故技术实践是有益于进度的实践，而可构造性实践对成本和进度具有平衡的底线影响。

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