中文摘要：

在现实生活中，多源环境下大学生综合素质分析是一个非常重要的课题。针对此问题，本文从粒计算的角度出发，结合粗糙集决策的方法，构建了多源环境下大学生综合素质决策信息系统，用Matlab对该系统进行约简，并根据约简进行规则提取，对获得的规则进行分析和验证，得出了大学生综合素质决策结论。本文是多粒度粗糙集应用的一个范本，具有重要的理论和实践意义。

英文摘要：

In real life, college students＇ comprehensive quality decision analysis in multiple source environment is very important. To solve this problem, combining the methods of granular computing and multi-granulation rough set, college students＇ comprehensive quality decision information system was established on the basis of multiple source environment. Reductions of the decision system were calculated on the Matlab platform. Moreover, we extracted rules from the reductions, analyzed and checked the rules. College students＇ comprehensive quality decision conclusions were obtained by the rules. This paper is the application of multi-granulation rough set with theoretical and practical significance.