关键词: 项目管理, 关键链, 综合活动敏感性, 动态监控, 缓冲分配

Abstract: The classical buffer management methods only consider the sensitivity of activities to project duration. However, the impact of cost on the project is also very important, and these two factors have different impacts on different projects. In this paper, the sensitivity of activity to cost is considered for the first time, and the comprehensive sensitivity coefficient of activity to duration and cost is determined, based on which, the project buffer is allocated according to the comprehensive sensitivity and the duration of activity, which makes the allocation of buffer more reasonable. Then, according to the comprehensive sensitivity of activities, activities are divided into high, general and low sensitivity activities, so that the monitoring focus of the project can be more effectively determined. After that, monitoring trigger points are set respectively, and buffer consumption is monitored dynamically. Finally, Matlab simulation is used to verify the optimization results, in combination with a practical case. The experimental results show that the proposed method makes buffer utilization more efficient and monitoring focus clearer, which can achieve the dual goals of duration reduction and cost saving.

Key words: project management, critical chain, comprehensive activity sensitivity, dynamic monitoring, buffer allocation