Abstract
We have developed a text mining tool named“Hipparu−McS”. The purpose of its development is to solve the problem that existing tools insufficiently assist users to realize self−exploration and flexible structuring, still they are essential concepts for users in the process of the use of text mining. Through the implementation and the trial experiment, this thesis clarifies the uniqueness of“Hipparu−McS” that the tool is capable of providing its users the variety of implications（metacognition）and the diversity of potential interpretation so that it actualizes the self−exploration and flexible structuring.
