Papers in PDF format

Figure 3: Steps involved in Adding to a Sequential WWW List
As shown, the document Maurer has to be inserted first. Then the document representing the alphabetic list Lanier,
Nelson,... has to be updated to include Maurer; finally, the link labeled (1) between the Lanier and Nelson documents
must be deleted, and the new links (2),(3), and (4) created. In sharp contrast, in a Hyper-G system only a single
operation is needed, i.e., the document Maurer is simply inserted into an appropriate collection, and the system does all
the rest when the ``sequence" attribute is set.
Conclusion
In this paper we considered some of the WWW problems that arise from having large amounts of unstructured data in
flat file databases. We then considered the advantages of systems which have a separate link engine that supports
bi-directional and non-embedded links. We looked forward to hypermedia systems which integrate e-mail, discussion
groups, CSCW and video conferencing, supported by easily defined link types. Finally we looked at ways of structuring
documents to minimise link maintenance while supporting features such as customisation and sequencing of documents.
References
Andrews et al., 1994
Andrews, K., Kappe, F., and Maurer, H. (1994). The Hyper-G network information system. In Special issue:
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Andrews et al., 1995a
Andrews, K., Kappe, F., Maurer, H., and Schmaranz, K. (1995a). On second generation hypermedia systems. In
Proc. ED-MEDIA 95 - World Conference on Educational Multimedia and Hypermedia, pages 75-80. AACE.
Andrews et al., 1995b
Andrews, K., Maurer, H., and Scherbakov, N. (1995b). Semantic modeling of object-oriented hypermedia
databases. In Blumenthal, B., Gornostaev, J., and Unger, C., editors, Human-Computer Interaction, EWHCI'95,
pages 121-134. Springer, LNCS 1015.
Conklin, 1987
Conklin, J. (1987). Hypertext: An introduction and survey. IEEE Computer, 20(9):17-41.
Flohr, 1995
Flohr, U. (1995). Hyper-g organizes the web. Byte, pages 59-64.