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Along with the rapid development of network education, virtual learning community emerges its apparent advantages continuously. Collaborative learning has played an important role in educational patterns. Based on the constructivism learning theory, this paper designs a collaborative virtual learning community on the subject of Software Engineering. Moreover, the learner's online action is a force to be reckoned with. In view of collaborative learning processes are very important, the group member's learning characters such as sending or watching the amount of message are extracted to evaluate their usual performances. Then they can be visualized in forms of chart or data report for learners, to the effect that urge learners into adjusting themselves duly.