Shneiderman's Data+Tasks Taxonomy Data 1D, 2D, 3D, temporal, nD, trees, networks text and documents (Hanrahan) Tasks Overview, Zoom, Filter, Details-on-demand, Relate, History, Extract data alone not enough: what do you need to do? [Shneiderman, The Eyes Have It: A Task by Data Type Taxonomy for Information Visualizations] 14