The purpose of this study is to evaluate the effectiveness of the collaborative concept mapping software to reconstruct learning processes on reflection and dialogue. The functional features of the software are as follows: learners can (a) play back all the creation processes of their concept map, (b) improve their concept map anytime by undoing, and (c) create a concept map collaboratively on a computer network. 40 students were asked to evaluate the effectiveness of the software on their reflection and dialogue in the questionnaire and the interview. Analysis of their responses reveals that most students evaluated the effectiveness highly.