Averbukh Vladimir, Theory as a Bridge between Education, Research and Development in Human-Computer Interaction and Computer Visualization // Journal of International Scientific Publication: Educational Alternatives. 2012. Vol. 10. Part 3. Pp.151-158. Peer Reviewed and Open Access Journal. ISSN: 1313–2571.
http://www.scientific-publications.net/download/educational-alternatives-2012-3.pdf
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The theory is necessary to analyze an existing state of the practice, to train new professionals and to use in the practical work. One may find two main approaches to a choice of foundations for the theories of the computer visualization and human-computer interaction which can be roughly described as psychological and semiotical.
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