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| 摘要: |
| 提出一种风险驱动的项目缓冲分配方法,并开发了相应的项目模拟执行工具对方法进行验证.方法旨在通过综合考虑软件项目的风险因素、任务之间的进度约束和资源约束对项目的可用缓冲进行合理分配.模拟实验的结果表明,在风险较高的软件开发项目中,该方法相对于关键链项目管理中尾部集中的项目缓冲分配方法,可确保在对项目平均执行工期产生较小影响的同时,显著降低项目执行时计划变更的发生频率.该缓冲分配方法与项目模拟工具可以帮助软件项目经理确定合适的项目缓冲时间长度以及缓冲分配方案,进而提高软件项目计划的可信性和执行的稳定性. |
| 关键词: 软件项目管理 计划变更 风险 缓冲分配 过程模拟 人力资源约束 |
| DOI： |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.90718042 (国家自然科学基金); the National High-Tech Research and Development Plan of China under Grant Nos.2007AA010303, 2007AA01Z186 (国家高技术研究发展计划(863)); the National Basic Research Program of China under Grant No.2007CB310802 (国家重点基础研究发展计划(973)) |
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| Reducing Plan Change: A Risk Driven Software Project Buffer Allocation Method |
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XIE Li-Zi, WANG Qing, XIAO Jun-Chao
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| Abstract: |
| This paper proposes a risk driven project buffer allocation method which will allocate project buffer according to risks, schedule constrains and resource constrains between tasks. The result of simulation based experiments shows that compared with Critical Chain, the proposed method can remarkably reduce the frequency of plan change and minimize the negative impact to project duration. The method and the tool can help project managers to decide appropriate project buffer length and make better use of the limited buffer. The stability and trustworthiness of project plan schedule can be enhanced. |
| Key words: software project management plan change risk project buffer process simulation resource constrain |
