The scientific and technological information must be concretely expressed from different points of view all the more because it usually contains many involved thoughts. Accordingly, in order to survey what kinds of view points (i.e. facets) are there in informations, I extracted several thousands of Japanese terms out of many documents for science and technology, divided these terms into unit concepts and grouped the analogous from points of facets. As the result, the existence of not less than ten groups was confirmed.