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The Evolution of Visual Conventions in Rhetorical Acts Across Disciplines and Time

This text explores the origins and development of visual conventions in various disciplines, examining how they evolve through adaptation, transplantation, and codification. It highlights the significance of rhetorical acts and the challenges in pinpointing their beginnings. Key features of modern visual representations in fields such as meteorology and engineering are discussed, showcasing how disciplines invent or appropriate conventions over time. The impact of technology and abstraction in shaping these conventions is also considered, from informal imitation to formal standards across disciplines.

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The Evolution of Visual Conventions in Rhetorical Acts Across Disciplines and Time

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Presentation Transcript

  1. Origins • Conventions presume a chain of rhetorical acts that must begin somewhere, but often hard to pinpoint where

  2. We can locate moments where conventionsare beginning to take shape

  3. T Plot’s chart shows key features of present-day line or scatter charts, even though meteorology has developed its own modern visual conventions How we read barometric pressure now .

  4. Visual conventions change as rhetorical purposes and production technologies evolve • Rockefeller Foundation Annual Report 1929, 1957, 1985, 2009 • Computer interfaces through the decades

  5. New disciplines need new conventions • Depending on the type of knowledge that requires visual representation, a discipline might invent new conventions or appropriate existing conventions from another field. • As disciplines mature, conventions are likely to become more abstract, more specialized and more firmly and formally codified • Conventions unfold in 3 modes – adaptation, transplantation, codification

  6. Adaptation • Mechanical engineering (drafting) starts with conventions from architecture

  7. Representations of objects become more abstract and isolated from context of use as mechanical engineering becomes a more specialized and sophisticated field.

  8. Until we get this….

  9. Transplantation Conventions branch off from other conventions in brand new directions http://www.epa.gov/ttn/naaqs/ozone/areas/wind.htm http://www.visifire.com/silverlight_radar_polar_charts_gallery.php

  10. http://www.epa.gov/ttn/naaqs/ozone/areas/wind.htmhttp://www.visifire.com/silverlight_radar_polar_charts_gallery.phphttp://www.epa.gov/ttn/naaqs/ozone/areas/wind.htmhttp://www.visifire.com/silverlight_radar_polar_charts_gallery.php

  11. Codification • Informal and indirect – imitation • Formal and direct • NISO: Information on Spines • AIA: Architectural Graphic Standards • IEEE: Visual Identity Standards • New Jersey DOP: Geologic Rock Symbols

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