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...rategy is to provide several alternative visualizations in the same application, giving users multiple views of the same data set. 5.2 Support for User Tasks Our task analysis is based on Shneiderman =-=[12]-=-, who presents seven high level tasks that an information visualization application should support. For evaluation purposes, we must rene these into lowerlevel tasks for the two application domains r...

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...sign to use when designing an information visualization application. As asrst step towards such an understanding, we have implemented three existing 3D information visualization designs: the Cam Tree =-=[10]-=-, the Information Cube [8], and the Information Landscape [1, 13]. Our implementation was used to visualize a number of different data sets { two of which we use as a basis for our discussion in this ...

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...[5] present the n-Vision system for visualizing multi-dimensional data (more than 3 dimensions). The visualization consists of nested 3D coordinate systems with axes. The Web Forager and the Web Book =-=[2]-=- adopt a metaphorical nesting, where WWW pages are contained in books, that in turn can be contained in book shelves placed in a 3D room. Another type of 3D information visualization design (not repre...

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...(not represented in our selection) is raised surfaces, where information is displayed on a surface that can be raised towards the user to provide extra detail. An example of this is the Document Lens =-=[9]-=-, which is used for laying out pages of a document on a rectangular surface. 3DPS (3-Dimensional Pliable Surfaces) [11] is another example of this type of design, an information visualization applicat...

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...nclusions and point out further research directions (Section 6). 2 Previous Work 2.1 Related Designs Information visualization designs similar to the Cam tree include the work of Munzner and Burchard =-=[7]-=- which displays directed graphs with cycles (such as the WWW) in hyperbolic space. The SeeNet3D information visualization application [4] visualizes global networks on a sphere and local networks on a...

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...an information visualization application. As asrst step towards such an understanding, we have implemented three existing 3D information visualization designs: the Cam Tree [10], the Information Cube =-=[8]-=-, and the Information Landscape [1, 13]. Our implementation was used to visualize a number of different data sets { two of which we use as a basis for our discussion in this paper. We begin by discuss...

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...ower level cognitive aspects. The work of Hubona, Shirah and Fout [6] suggests that users' understanding of a 3D structure improves when they can manipulate the structure. The work of Ware and Franck =-=[14]-=- indicates that displaying data in three dimensions instead of two can make it easier for users to understand the data. Our work complements this type of evaluation by considering higher-level propert...

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...milar to the Cam tree include the work of Munzner and Burchard [7] which displays directed graphs with cycles (such as the WWW) in hyperbolic space. The SeeNet3D information visualization application =-=[4]-=- visualizes global networks on a sphere and local networks on a map image. The Bead [3] system is similar to the Information Landscape. It displays bibliographic data with documents as cubes interconn...

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...ation. As asrst step towards such an understanding, we have implemented three existing 3D information visualization designs: the Cam Tree [10], the Information Cube [8], and the Information Landscape =-=[1, 13]-=-. Our implementation was used to visualize a number of different data sets { two of which we use as a basis for our discussion in this paper. We begin by discussing previous work in classifying and ev...

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...ted graphs with cycles (such as the WWW) in hyperbolic space. The SeeNet3D information visualization application [4] visualizes global networks on a sphere and local networks on a map image. The Bead =-=[3]-=- system is similar to the Information Landscape. It displays bibliographic data with documents as cubes interconnected by triangles in a landscape-like space. Nested designs, such as the Information C...

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...valuation of 3D User Interfaces Previous work in evaluating 3D user interfaces mainly concentrates on experimental evaluation of the lower level cognitive aspects. The work of Hubona, Shirah and Fout =-=[6]-=- suggests that users' understanding of a 3D structure improves when they can manipulate the structure. The work of Ware and Franck [14] indicates that displaying data in three dimensions instead of tw...

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...ation. As asrst step towards such an understanding, we have implemented three existing 3D information visualization designs: the Cam Tree [10], the Information Cube [8], and the Information Landscape =-=[1, 13]-=-. Our implementation was used to visualize a number of different data sets { two of which we use as a basis for our discussion in this paper. We begin by discussing previous work in classifying and ev...

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...towards the user to provide extra detail. An example of this is the Document Lens [9], which is used for laying out pages of a document on a rectangular surface. 3DPS (3-Dimensional Pliable Surfaces) =-=[11]-=- is another example of this type of design, an information visualization application for distortion based display of maps and graphs. 2.2 Evaluation of 3D User Interfaces Previous work in evaluating 3...

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...cape. It displays bibliographic data with documents as cubes interconnected by triangles in a landscape-like space. Nested designs, such as the Information Cube, are more uncommon. Feiner and Beshers =-=[5]-=- present the n-Vision system for visualizing multi-dimensional data (more than 3 dimensions). The visualization consists of nested 3D coordinate systems with axes. The Web Forager and the Web Book [2]...