Abstract
RDF/OWL languages in the semantic Web are consistent to the turns of social science. Therefore, with the gradual understanding of the world, users themselves can write down RDFs. However, the methodology for it is not yet established. We investigate what RDF descriptions are in contrast to the relational DB. RDB development is practiced in the rationalistic way by the third party in a topdown approach and users practice set operation. In contrast, in the Semantic Web users gradually describe RDF for each instance, and happen to have a large knowledge base as a result. This gradual description of the world is parallel to the idea of phenomenology. It is expected therefore that a first-person perspective approach differing from analysis is developed.