In this research project, subject terms from the Dewey Decimal Classification (DDC) Schedules and Relative Index were incorporated into an online catalog as searcher's tools for subject access, browsing, and display. Four features of the DDC were employed to help searchers browse for and match their own subject terms with the online catalog's…

Examines the use of intelligence tutoring systems (ITS) instead of conventional computer-assisted instruction and computer-assisted learning. Discusses how data banks can be searched using closed, semi-closed, and open methods by means of Boolean methods and the Dewey system. (Author/AEF)

Techniques for building a world-wide information infrastructure by reverse engineering existing databases to link them in a hierarchical system of subject clusters to create an integrated database are explored. The controlled vocabulary of the Library of Congress Subject Headings is used to ensure consistency and group similar items. Each database…