关键词: 项目管理, 关键链, 项目缓冲, 双目标优化, 综合效用

Abstract: To improve the comprehensive utility of project duration and cost in critical chain, a buffer determination method of two-objective optimization is studied. First of all, the proposed method considers the relationship between the duration and cost of different activities, and determines the weight based on the risk exposure of the duration and cost, which solves the problem that it is difficult to quantify the duration and cost preference between different activities. Secondly, according to the weighted multi utility function, the duration and cost are normalized, and the optimal duration of different activities under the condition of the maximum comprehensive utility is determined. Finally, the project buffer is determined based on the tail-concentration method. The Monte-Carlo simulation result shows that, as opposed to traditional methods, the integrated utility of the proposed method is greatly improved, and the proposed method can protect the project duration and cost more effectively.

Key words: project management, critical chain, project buffer, two-objective optimization, integrated utility