By Heidi Lam, Tamara Munzner
Exhibiting a number of degrees of knowledge visually has been proposed to deal with the problem of constrained reveal area. even though many earlier empirical reports have addressed varied facets of this query, the data visualization study group doesn't at the moment have a in actual fact articulated consensus on how, whilst, or maybe if showing info at a number of degrees is efficacious. To shed extra mild in this complicated subject, we carried out a scientific evaluate of twenty-two present multi-level interface experiences to extract high-level layout guidance. To facilitate dialogue, we forged our research findings right into a four-point selection tree: (1) while are multi-level screens helpful? (2) What should still the better visible degrees show? (3) should still the various visible degrees be displayed concurrently, or one by one? (4) may still the visible degrees be embedded in one reveal, or separated into a number of monitors? Our research led to 3 layout directions: (1) the variety of degrees in demonstrate and information may still fit; (2) excessive visible degrees should still merely show task-relevant info; (3) simultaneous show, instead of temporal switching, is appropriate for projects with multi-level solutions. desk of Contents: creation / Terminology / method / precis of reviews / selection 1: unmarried or Multi-level Interface? / selection 2: the best way to Create the High-Level screens? / determination three: Simultaneous or Temporal monitors of the a number of visible degrees / determination four: tips on how to Spatially set up the visible degrees, Embedded or Separate? / boundaries of research / layout options / dialogue and destiny paintings
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Additional info for A Guide to Visual Multi-Level Interface Design from Synthesis of Empirical Study Evidence
2003] [ZuiNav] Hornbæk et al.  [FishMenu] [FishSrc] [SumThum] Hornbæk and Hertzum  Jakobsen and Hornbæk  Lam and Baudisch  [LineGr] Lam et al.  [RubNav] Nekrasovski et al.  [Snap] North and Shneiderman  [InfoScent] Pirolli et al.  [SpaceTree] Plaisant et al.  [VisMem] Plumlee and Ware  [TimeGr] Saraiya et al.  [FishRadar] Schafer and Bowman  [FishNav] Schaffer et al.  [SpaceFill] Shi et al.  Paper Title Keeping things in context: a comparative evaluation of focus plus context screens, overviews, and zooming Fishnet, a fisheye web browser with search term popouts: a comparative evaluation with overview and linear view DateLens: a fisheye calendar interface for PDAs User Interaction with Scatterplots On Small Screens—A Comparative Evaluation of Geometric-Semantic Zoom and Fisheye Distortion Hidden messages: evaluating the efficiency of code elision in program navigation Fisheyes are good for large steering tasks Interacting with big interfaces on small screens: a comparison of fisheye, zoom, and panning techniques Reading of electronic documents: the usability of linear, fisheye and overview + detail interfaces Reading patterns and usability in visualization of electronic documents Navigation patterns and usability of zoomable user interfaces with and without an overview Untangling the usability of Fisheye menus Evaluating a fisheye view of source code Summary Thumbnails: readable overviews for small screen web browsers Overview use in multiple visual information resolution interfaces An evaluation of pan and zoom and rubber sheet navigation Snap-together visualization: can users construct and operate coordinated visualizations?
2. HAVING TOO MUCH INFORMATION ON HIGH-LEVEL DISPLAYS 25 menu only showed a list of alphabets, their embedded fisheye menus showed all menu items in font sizes based on relative distances from the focus Hornbæk and Hertzum . In both cases, researchers advised against putting too much visual information on the display. Pirolli et al.  argued against the assumption of “ ‘squeezing’ more information into the display ‘squeezes’ more information into the mind” (p. 51) since visual attention and visual search interact in complex ways Pirolli et al.
4. A PRIORI AUTOMATIC FILTERING MAY BE A DOUBLE-EDGED SWORD 29 navigation, the geographic map information provided by the high-level overviews may not have been sufficiently detailed for the study tasks, for example, to find a neighboring location given a starting point, to compare the location or size of two map objects, or to find the two largest map objects in a geographic boundary Hornbæk et al. . For the Washington-map trials, having an extra high-level overview had time and recall accuracy costs, suggesting the burden of “switching between the detail and the overview window required mental effort and time moving the mouse” (p.