引言在核电站建造阶段,质量数据统计一方面是对质量保证体系实施有效性方面存在的问题定期收集,如对内、外部的各种监督、监查、审查等,另一方面是对质量控制过程中产生的质量问题或是质量控制指标进行收集,按问题的类别、产生原因等进行归类、统计。趋势分析是运用质量改进工具,如控制图、因果图、直方图等对质量数据统计结果进行数据整理、分 Introduction In the nuclear power station construction stage, quality data statistics on the one hand is the regular collection of problems in the effectiveness of the implementation of the quality assurance system, such as various internal and external supervision, inspection, review, etc., on the other hand, quality control process In the quality or quality control indicators collected, according to the type of problem, the causes of such as the classification, statistics. Trend analysis is the use of quality improvement tools, such as control charts, causal maps, histograms and other data on the quality of statistical results, points