Your data (and visualization) will have most impact on your audience if you can show how it tells a story.Don't try to cram all of your data into a visualization streamline it, so that the important patterns and trends emerge.Don't manipulate the data in order to make it fit your argument.If you're using a data visualization in a presentation, it's probably better to convey a fact or idea with a visual rather than with digits for example, a bar chart that shows the relative amounts of various items is usually better than just giving the bare numbers (34, 56, 98, 22, etc).Make the design of your data visualization fit the data, not the other way around that is, data has priority over design.Data visualization shifts the balance toward greater use of visual perception, taking advantage of our powerful eyes whenever possible." - Data visualization for human perception, Foundation, 2010. Traditional data sense-making and presentation methods require conscious thinking for almost all of the work. cognition), which is handled primarily by the cerebral cortex in the front of the brain, is much slower and less efficient. Seeing (i.e visual perception) which is handled by the visual cortex located in the rear of the brain, is extremely fast and efficient. "Data visualization is effective because it shifts the balance between perception and cognition to take fuller advantage of the brain's abilities."The effectiveness of data visualizations can be largely attributed to the powerful processing mechanisms of human vision, with the most effective visualizations mapping data to perceptual mechanisms in such a way that the important patterns are easily perceived." - Data visualization optimization via computational modeling of perception, IEEE Transactions on Visualization and Computer Graphics, 2012.Consider this transformation of the digits of the irrational number Tau into sound. Incidentally, it's also possible to render data into sound. Hans Rosling's 5-minute video about data visualizations is also enlightening. David McCandless talks about the importance of data visualization in this 18-minute presentation. In the past ten years, thanks to the advent of Web 2.0 and specialized online tools, it's possible for any individual to make and share effective data visualizations. A three-minute video that provides an overview of data visualization is here. Student Led Individually Created Courses (SLICCs)Īmit & Meena Chakma Award for Exceptional Teaching by a Studentĭata visualization is the process of presenting large amounts of data in a visual form that helps to reveal meaningful patterns in the data. Traditional data visualization tools, such as paper-based graphs, are essentially limited to presenting two dimensions of data however, some online data visualization tools can present up to five dimensions of data simultaneously.
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