关键词: 故障, 程序谱, 故障定位, 聚类函数, 失效

Abstract: Automated diagnosis of software faults can improve the efficiency of the debugging process，and is therefore an important technique for the development of dependable software.This paper proposes fault automate localization based on the analysis of statements hit spectra in the original program spectrum analysis，overcomes high computation cost problem for fault localization based on model by introducing clustering function，and compares existing location tool of program spectra as Pinpoint，Tarantula.Finally the effectiveness and superiority of this methodology are demonstrated by the experimental results.

Key words: fault, program spectrum, fault location, clustering function, failture