Information Visualization External Cognition Using perception to amplify cognition 34 x

Information Visualization Information Design/Data Graphics Using external representations to amplify cognition Using abstract external representations

Information Visualization Using interactive external representations to amplify cognition –Scientific Visualization = physical data –Information Visualization = abstract data WWW server logs, databases… => No intrinsic visual representation

History 10 years of Academic Research Jacques Bertin (cartograph) invented the domain in the 60’s Ben Shneiderman popularized it (~90’s ) Topology of Internet by service provider

Example : Table Lens Take a spreadsheet, replace figures with bars + add interactive manipulation of rows and columns

Starfield Display (plots) 2D plots with interactive filtering and navigation

Treemaps For hierarchical and clustered data Micro/macro reading, size + color encode information

Treemaps (2) hits in 6 months, interactive display