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  • × author_ss:"Veltman, K.H."
  • × year_i:[1990 TO 2000}
  1. Veltman, K.H.: Frontiers in conceptual navigation (1997) 0.00 
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    Abstract
    Recent advances in technology assume a separation of content and presentation with respect to data structures. In terms of access, however, there are important reasons for relating content and presentation (differnt views, perspectives). The paper outlines some fundamental concepts underlying a prototype for a System for Universal Media Searching (SUMS), namely, learning filters, and knowledge contexts, levels of knowledge, questions as strategy: pupose as orientation; media choices, quality, quantity, questions, space using maps and projections; multi-temporal views and integrating tools. It foresees how such a system, linked with the equivalent of a digital reference room, will provide the basis for a System for Universal Multimedia Access (SUMMA). The latter part of the paper addresses recent developments in three-dimensional interfaces. It claims that these are particularly suited for certain tasks such as visualising conncetions in conceptual spaces; seeing invisible differences as well as comprehension and prediction by seeing absence. It suggests also some ways in which two- and three-dimensional interfaces can be used in complementary ways
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  2. Veltman, K.H.: Electronic media and visual knowledge (1993) 0.00 
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    Abstract
    The real challenge of today lies in exploring how computers will enable us to do what was not possible previously. The paper attempts tp provoke thought about new frontiers of visual knowledge organization. Computers introduce the possibility of interchangeable media. They offer multiple nodes of access to a given term or object. They enable us to approach knowledge on different levels. A scheme of 10 levels is proposed and some consequences for visual knowledge at each of these levels is considered briefly. The final section of the paper considers four navigation tools: questions, maps, meters, and tracking
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