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Figure 1: Textook and Glossary w<strong>in</strong>dows of InetrBook<br />

4 Discussion: Index<strong>in</strong>g for "More Intelligent" Author<strong>in</strong>g<br />

on WWW<br />

The ma<strong>in</strong> idea beh<strong>in</strong>d our tool is us<strong>in</strong>g concept-based <strong>in</strong>dex<strong>in</strong>g to make conventional educational material more<br />

<strong>in</strong>telligent and flexible. The idea of <strong>in</strong>dex<strong>in</strong>g is to provide the <strong>in</strong><strong>format</strong>ion about the content of each unit of conventional<br />

educational material by <strong>in</strong>dex<strong>in</strong>g this unit with related doma<strong>in</strong> concepts. Previously, <strong>in</strong>dex<strong>in</strong>g was applied <strong>in</strong> three<br />

author<strong>in</strong>g contexts: CAI context, hypermedia author<strong>in</strong>g context and ITS author<strong>in</strong>g context.<br />

Index<strong>in</strong>g was orig<strong>in</strong>ally suggested <strong>in</strong> CAI context by Os<strong>in</strong> [1976] who suggested a framework for <strong>in</strong>dex<strong>in</strong>g CAI frames<br />

by a set of topics which it covers. Such <strong>in</strong>dexed sets of frames were not related to any pre-scribed order of presentation.<br />

They can be accumulated, stored <strong>in</strong> special libraries, and re-used by different authors to create their own courses. In the<br />

multimedia field, a similar idea of a re-usable database of multimedia learn<strong>in</strong>g material <strong>in</strong>dexed by topics and keywords<br />

is elaborated by Olimpo et al. [1990].<br />

Later <strong>in</strong>dex<strong>in</strong>g was applied <strong>in</strong> hypermedia and ITS author<strong>in</strong>g area. In the hypermedia author<strong>in</strong>g area, an idea of <strong>in</strong>dex<strong>in</strong>g<br />

was elaborated by Mayes, Kibby and Watson [1988] <strong>in</strong> the StrathTutor system. They stressed additional preference of<br />

<strong>in</strong>dex<strong>in</strong>g the frames of learn<strong>in</strong>g material - the possibility to <strong>in</strong>dicate related pairs of frames not by tedious glossary<br />

l<strong>in</strong>k<strong>in</strong>g of pieces of learn<strong>in</strong>g material together, but dynamically, on the basis of similarity of corresponded sets of topics.

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