Abstract: The complexity of tree set analysis for network was compared with that of minimum cut set analysis.If was illustrated by an example that the analysis method based on minimum cut set is the best approach for the availability analysis of network.

• 摘要：对网络分析的树集分析法与最小割集分析法的复杂性进行了比较，并示例说明以最小割集为基础进行网络可用性分析是最佳的技术途径。