Knowledge Sharing and Organization by Multiple Ontologies

In this paper, we introduce ontology-centric knowledge organization approach to realize knowledge base system for sharing and reuse of knowledge. Since ontology is an intermediate level of information representation between the model and media level of information, it can work to bridge multiple models and multiple users. To share personal information among users, they must share their manners of conceptualization which form personal ontologies. Here we introduce two systems. First, we show knowledge base system for engineering called Designers Amplifier that organizes poorly-structured documents. Next, we show the multiple ontology management system called Donden that enables users to edit multiple ontologies and helps users to integrate ontologies.