Abstract
To efficiently develop artifacts requires engineers well handling of a variety of design knowledge. Functional knowledge that includes design rational is one of the most important knowledge among them because of involving designers' intention, reason why they selected the way, or why they tried to avoid problem, and so on. Ontological engineering that we have created and developed for years provides designers a guideline to clarify functional knowledge. It is, however, hard to pervasively build, share and reuse them without specific technical support environment. Therefore we created such technology that supports designers in utilizing functional knowledge by combination of ontological engineering and text mining technology. In this paper, we discuss how we skillfully extract and organize functional knowledge from technical documents, and how designers can easily apply such kind of knowledge to design of artifacts on conceptual design phase.
