بهبود و استفاده از تجزیه و تحلیل ارزش کسب شده در مدیریت پروژه ذغال سنگ
|کد مقاله||سال انتشار||تعداد صفحات مقاله انگلیسی||ترجمه فارسی|
|7009||2011||7 صفحه PDF||سفارش دهید|
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Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Procedia Engineering, Volume 26, 2011, Pages 1983–1989
It would have some deficiencies in traditional earned value analysis methodology when were applied into schedule measurement methods and cost measurement methods in a project management, in light of this, the approach to improve cost measurement methods was presented. And, based on property of analysis task total time difference, the conception of weight earned value was introduced to resolve vital path problem of schedule measurement methods; meanwhile, the weight earned value calculating formulas and analysis processes were given in this paper, which could provide a more accurate basis for coal project measurement.
It already has more focus on using the theory and method of project management effectively and reasonably to guide actual works. For the manufacture enterprise, cost control and quality assurance have already become the assurance of enterprise sur vival and development. In order to successfully complete the stated project in a definite time limit and manufacturing cost, the trace analysis and control monitors should be required during the process of its implementation, once problems were discovered, it would be prompted attention to it and avoided a greater loss to the project. Earned value analysis (EV), also is called deviation analysis, is a project management technique for measuring project performance and progress in an objective perspective. [1,2] It is an effective method ofcombination control to the scope, schedule and cost of the project. By measuring and calculating the budgeted cost for work performed (BCWP), actual cost for work performed (ACWP), and budgeted cost for work scheduled (BCWS), the project scheduling and cost variance (CV) were obtained, thereby could measure the project budget and schedule performance. And it is notable for its ability to provide accurate forecasts of project performance by measuring and calculating the budgeted cost and the actual cost of the project.
نتیجه گیری انگلیسی
It had some deficiencies in traditional EV analysis methodology, because it ignored the difference between critical and non-critical activities of work items and ignored the restraints of the critical activities. Further, it violated the basic principle of statistics that analyzed the absolute difference should valued planned index as a base index; Weight EV was for a better discrimination between the critical and non-critical activities of the project, and weight value selection formula was given, which could decide whether the work procedure was a critical work or not; besides, the indexes of CV and CPI were amended to cater the practical situation more accuracy. Weight EV could have more accurate conclusion than traditional EV by the contrast analyzed with parts of foundation construction of the coal mine.