关键链项目管理时间缓冲的定量研究  

A Quantitative Research on the Time Buffer of Critical Chain Project Management

作　　者：杨小平[1] 高攀[1] 

机构地区：[1]中国科学技术大学管理学院,安徽合肥230026

出　　处：《上海管理科学》2012年第3期62-66,共5页Shanghai Management Science

摘　　要：关键链项目管理方法为项目进度管理提供了一种非常实用的解决思路,它同时考虑技术约束和资源约束,然后通过设置时间缓冲来实现对项目进度的计划和控制。时间缓冲大小的设置与估计是关键链项目管理的核心和精华,文章在综述传统确定缓冲的方法基础上引入排队论模型M/M/c/N求解多资源约束下的关键链项目管理的时间缓冲,并构建成本函数模型且结合实例来确定与企业资源(服务台)相对应的最优的缓冲尺寸,接着对模型进行了敏感性分析,以此来观察最优缓冲尺寸与到达率λ、服务率μ之间的变化关系,从而指导企业合理地确定项目周期。同时,文章还指出了该方法现存的问题并探讨了进一步的研究方向。Critical Chain project management methodology provides a very practical solution idea for the project schedule management. It focuses on technical constraints and resource constraints, then by setting the time buffer to achieve the purpose of plan and control the project, estimate the size of time buffer is the essence of Critical Chain Project Management. The paper uses queuing theory to solve the size of time buffer of resource constrained Critical Chain Project Management. A cost model is developed to determine the optimal time buffer. In order to identity the relationships between the optimal time buffer and the arrival/service process （）, a sensitivity analysis was conduct. It can guide enterprises to rationally determine the project cycle, to use project resources effectively; and more effectively deploy and standardize the process of project implementation. Meanwhile, we discuss the existing difficulties in Critical Chain Project Management as well as future researches.

关 键 词：关键链 排队论 时间缓冲 成本函数 敏感性分析 

分 类 号：F224.34[经济管理—国民经济]