Hyperorders and transclusion: understanding dimensional hypertext
Article No.: 5, Pages 1 - 9
Abstract
ZigZag is a unique hyperstructural paradigm designed by the hypertext pioneer Ted Nelson. It has piqued a lot of interest in the hypertext community in recent years because of its aim of revolutionizing electronic access to information and knowledge bases. In ZigZag information is stored in cells that are arranged into lists organized along unlimited numbers of intersecting sets of associations called dimensions. To this infrastructure a mechanism of transclusion is added, allowing the data stored in cells to span, and hence be utilized, in different contexts. Proponents of ZigZag claim that it is a flexible and universal structure for information representation, and yet the system has not been widely adopted and has been implemented even more rarely. In this paper we address the question of whether there are intrinsic theoretical reasons as to why this is the case.
While the basic features and specifications of ZigZag are well known, we delve in to the less understood area of its theoretical underpinnings to tackle this question. By modeling ZigZag within the framework of set theory we reveal a new class of hyperstructure that contains no referencable link objects whatsoever, instead grouping non-referencable binary associations into disjunct but parallel sets of common semantics (dimensions). We go on to further specialize these "dimensional models" into sets of finite partial functions, which are closed over a single domain, isolating the new class of hyperstructures we are calling hyperorders. This analysis not only sheds light on the benefits and limitations of the ZigZag hypermedia system, but also provides a framework to describe and understand a wider family of possible hyperstructure models of which it is an early example. Characteristics of Zigzag's transclusion mechanisms are also investigated, highlighting a previously unrecognized distinction, and potential irrevocable conflict, between two distinct uses of content reuse: instance and identity transclusion.
References
[1]
Andric, M., Devedzic, V., Hall, W. and Carr, L. 2007. Linking method for selecting educational web resources á la ZigZag. International Journal of Knowledge and Learning, 3(1), 30--45.
[2]
Ashman, H. 2000. Relations Modelling Sets of Hypermedia Links and Navigation. The Computer Journal, 45(5), 345--363.
[3]
Bieber, M., Vitali, F., Ashman, H., Balausbramanian, V. and Onias-Kukoknen, H. 1997. Fourth Generation Hypermedia: Some Missing Links for the World Wide Web. International Journal of Human-Computer Studies: Special Issue on HCI and the Web, 47(1), 31--65.
[4]
Boulain, P., Shadbolt, N. and Gibbins, N. 2008. Hyperstructure Maintenance Costs in Large-scale Wikis. International Workshop on the Social Web and Knowledge Management, at the 17th international conference on World Wide Web (WWW '08). (http://eprints.ecs.soton.ac.uk/15200/1/swkm2008-wmexpr.pdf)
[5]
Cockburn, A. 2004. Revisiting 2D vs. 3D implications on spatial memory. In Proceedings of the Fifth conference on Australasian user interface, 25--31.
[6]
Cockburn, A. and McKenzie, B. 2001. 3D or Not 3D? Evaluating the Effect of the Third Dimension in a Document Management System. In Proceedings of the SIGCHI conference on Human factors in computing systems, 434--441.
[7]
Egan, D. and Gomez, M. 1985. Assaying, isolating, and accommodating individual differences in learning a complex skill. In R. Dillon (Ed.) Individual Differences in Cognition. Academic Press, New York, USA.
[8]
Kolbitsch, J. 2005. Fine-Grained Transclusions of Multimedia Documents in HTML. Journal of Universal Computer Science, 11(6), 926--943.
[9]
Kolbitsch, J. and Maurer, H. 2006. Transclusions in an HTML-Based Environment. Journal of Computing and Information Technology, 14(2), 161--174.
[10]
Krottmaier, H. 2002. Transcluded Documents: advantages of reusing document fragments. In Proceedings of the 6th International ICCC/IFIP Conference on Electronic Publishing, 359--367.
[11]
Leitheiser, B. and Munro, D. 1995. An experimental study of the relationship between spatial ability and the learning of a graphical user interface. In Proceedings of the Inaugural Americas Conference on Information Systems, 122--124.
[12]
McGuffin, M. J. and mc schraefel 2004. A comparison of hyperstructures: zzstructures, mSpaces, and polyarchies. In Proceedings of the Fifteenth ACM Conference on Hypertext and Hypermedia, 153--162.
[13]
Moore, A. and Brailsford, T. J. 2004. Unified Hyperstructures for Bioinformatics: escaping the application prison. Journal of Digital Information, 5(1).
[14]
Moore, A., Brailsford, T. J. and Stewart, C. D. 2001. Personally tailored teaching in WHURLE using conditional transclusion. In Proceedings of the Twelfth ACM Conference on Hypertext and Hypermedia, 163--164.
[15]
Moore, A., Goulding, J. O., Brailsford, T. J. and Ashman, H. 2004. Practical applitudes: case studies of applications of the ZigZag hypermedia system. In Proceedings of the Fifteenth ACM Conference on Hypertext and Hypermedia, 143--152.
[16]
Nelson, T. H. 1980--1993. Literary Machines. Mindful Press Sausalito, CA, USA. Reprinted in 2008 by Eastgate Press, Watertown MA, USA.
[17]
Nelson, T. H. 1998. What's on my mind? Invited Talk at the First Wearable Computer Conference (http://www.xanadu.com.au/ted/zigzag/xybrap.html).
[18]
Nelson, T. H. 1999. ZigZag Tutorial. Project Xanadu. (http://xanadu.com/zigzag/tutorial/ZZwelcome.html).
[19]
Nelson, T. H. 2003. Structure, tradition and possibility (Keynote). In Proceedings of the Fourteenth ACM Conference on Hypertext and Hypermedia, 5--6.
[20]
Nelson, T. H. 2004. A cosmology for a different computer universe: data model, mechanisms, virtual machine and visualization infrastructure. Journal of Digital Information, 5(1).
[21]
Nielsen, J. 1995. Multimedia and Hypertext: The Internet and Beyond. Academic Press, San Diego, CA, USA.
[22]
Pourabdollah, A., Ashman, H. and Brailsford, T. J. 2008. Are we talking about the same structure?: a unified approach to hypertext links, xml, rdf and zigzag. In Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia, 241--242.
[23]
Robertson, G., Czerwinksi, M., Larson, K., Robbins, D., Theil, D. and van Dantzich, M. 1998. Data Mountain: Using Spatial Memory for Document Management. In Proceedings of the 11th annual ACM symposium on User interface software and technology, 153--162.
[24]
Tavanti, M. and Lind, M. 2001. 2D vs. 3D, Implications on Spatial Memory. In Proceedings of the IEEE Symposium on Information Visualization, 139--145.
[25]
Theng, Y. L., Jones, M. and Thimbleby, H. 1996. "Lost in hyperspace": Psychological problem or bad design? In Proceedings of the First Asia-Pacific Conference on Human Computer Interaction, 387--396.
[26]
Theng, Y. L. and Thimbleby, H. 1998. Addressing design and usability issues in hypertext and on the World Wide Web by re-examining the "lost in hyperspace" problem. Journal of Universal Computer Science, 4(11), 839--855.
[27]
Vicente, K., Hayes, B. and Williges, R. 1987. Assaying and isolating individual differences in searching a hierarchical file system. Human Factors, 29(3), 349--359.
[28]
Wilde, E. and Lowe, D. 2002. XML Linking Language, XPath, XLink, XPointer and XML: a practical guide to web hyperlinking and transclusion. Pearson Education. Boston, MA, USA.
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Publication History
Published: 01 September 2010
Published in SIGWEB Volume 2010, Issue Autumn
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