Abstract
While the market investigation is important in game software development, there is a problem that there is no effective way to pursue the factor of user's software evaluation. In this research, we paid attentions to corpus (electric existence of documents) considered that the factor relationships about the user's evaluation were expressed potentially as their opinions. As the way to achieve this idea, we tried to extract useful knowledge by using SEM and topic model for visual and quantitative analysis process. Experimental results showed that our proposal process can extract effectively the topics that users pay attentions when they evaluate the game software and we can interpret it.
