Document (#27479)

Author

Duncan, E.B.

Title

Structuring knowledge bases for designers of learning materials

Source

Hypermedia. 1(1989) no.1, S.20-33

Year

1989

Abstract

Three pre-web articles about using hypertext for knowledge representation. Duncan discusses how to use graphical, hypertext displays (she used Xerox PARC's NoteCards on a Xerox 1186 workstation) along with concept maps and facet analysis, a combination that would now be done with topic maps. The screen shots of her graphical displays are quite interesting. Her interest in facets is in how to use them to show things to different people in different ways, for example, so that experts can enter knowledge into a system in one way while novices can see it in another. Duncan found that facet labels (e.g. Process and Product) prompted the expert to think of related concepts when inputting data, and made navigation easier for users. Facets can be joined together, e.g. "Agents (causing) Process," leading to a "reasoning system." She is especially interested in how to show relstionships between two things: e.g., A causes B, A uses B, A occurs in B. This is an important question in facet theory, but probably not worth worrying about in a small online classification where the relations are fixed and obvious. These articles may be difficult to find, in which case the reader can find a nice sumary in the next article, by Ellis and Vasconcelos (2000). Anyone interested in tracing the history of facets and hypertext will, however, want to see the originals.

Theme

Hypertext
Klassifikationssysteme im Online-Retrieval

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3. Ellis, D.; Vasconcelos, A.: ¬The relevance of facet analysis for World Wide Web subject organization and searching (2000) 0.13

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4. Björklund, L.: Hyperclass : four hypertext applications of a classification scheme (1990) 0.12

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5. Denton, W.: Putting facets on the Web : an annotated bibliography (2003) 0.12

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