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Application of Sizing Estimation Techniques for Business Critical Software Project Management

机译：规模估算技术在业务关键软件项目管理中的应用

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摘要

Estimation is one of the most critical areas in software project management life cycle, which is still evolving and less matured as compared to many other industries like construction, manufacturing etc. Originally the word estimation, in the context of software projects use to refer to cost and duration estimates only with software-size almost always assumed to be a fixed input. Continued legacy of bad estimates has compelled researchers, practitioners and business organizations to draw their attention towards another dimension of the problem and seriously validate an additional component – size estimation. Recent studies have shown that size is the principal determinant of cost, and therefore an accurate size estimate is crucial to good cost estimation[10]. Improving the accuracy of size estimates is, therefore, instrumental in improving the accuracy of cost and schedule estimates. Moreover, software size and cost estimates have the highest utility at the time of project inception - when most important decisions (e.g. budget allocation, personnel allocation, etc). are taken. The dilemma, however, is that only high-level requirements for a project are available at this stage. Leveraging this high-level information to produce an accurate estimate of software size is an extremely challenging and high risk task. This study acknowledges the presence and effect of risk in any software estimate and offers pragmatic strategies for risk mitigation.
机译：估计是软件项目管理生命周期中最关键的领域之一，与许多其他行业（如建筑业，制造业等）相比，它仍在不断发展并且还不成熟。在软件项目的背景下，估计一词最初是指成本和持续时间估算值几乎总是假定软件大小为固定输入。错误估计的持续遗留问题迫使研究人员，从业人员和商业组织将注意力转移到问题的另一个方面，并认真验证了另一个因素-大小估计。最近的研究表明，规模是成本的主要决定因素，因此准确的规模估算对于良好的成本估算至关重要[10]。因此，提高规模估算的准确性有助于提高成本和进度估算的准确性。此外，在项目开始之时（最重要的决策（例如，预算分配，人员分配等）），软件大小和成本估算的效用最高。被采取。但是，两难选择是，在此阶段，仅对项目的高级要求可用。利用这些高级信息来准确估算软件大小是一项极富挑战性和高风险的任务。这项研究承认在任何软件评估中风险的存在和影响，并为降低风险提供了实用的策略。

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