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ZigZag is Ted Nelson's trademark on a data model he has designed for computer interaction, both for users and between programs. The design is centered around an information structure called a zzstructure and its interactive visualizations. Nelson's stated goal is on one hand a platform for the Project Xanadu hypertext and on the other a complete computing system built on new conventions. Instead of the conventional textual formats and tree structures, zzstructure is a multidimensional extension of a spreadsheet whose cells can contain various kinds of data.
History Ted Nelson designed a data structure in 1965 and later generalized and applied it in ZigZag. The first prototype consisting of two character-graphical views was implemented by Andrew Pam in 1997. From 2000 to 2003, a free software project GZigZag (later Gzz) developed another prototype with more views and other conventions. After 2003, prototype development has continued in various other projects. See also | ||||||||
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