Combined visualization of structural and metric information for software evolution analysis
Gonzalez, Antonio; Theron, Roberto; Telea, Alexandru; Garcia, Francisco J. (2009)
This paper discusses a proposal for the visualization of software
evolution, with a focus on combining insight on... more
This paper discusses a proposal for the visualization of software
evolution, with a focus on combining insight on changes that affect software metrics at project and class level, the project structure, the class hierarchy and the viewing of source code correlated to indirect class coupling. The proposed visualization supports several tasks: the comparison of structural information, including class hierarchies, across several revisions; uncovering collaboration patterns between developers; and determining which classes have been added or deleted to the project during the creation of a given revision.
We propose and discuss several design elements supporting
these tasks, including interaction patterns and linked views.
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Seen by:"Clutter” as an “infovis system” for vague “categories”
by Peter Coppin
Coppin, P. W. (2009, August). “Clutter” as an “infovis system” for vague “categories.” In proceed- ings of the Ethnographic Praxis in Industry 2009 (EPIC 2009) (p. 315), Chicago, IL, USA.
Many offices contain so-called "clutter." I propose that some clutter embodies two interrelated... more Many offices contain so-called "clutter." I propose that some clutter embodies two interrelated characteristics. Piles are theme based (“labelled”) categories containing document-objects that fall along perceptually similar dimensions. However, like a vague sketch, the visual-spatial relationships of document-objects between piles may express relationships that do not easily fall within existing piles (easily categorized themes). Understanding these emergent phenomena could guide the development of new kinds of visual-spatial information organization systems and expose relationships between visual-spatial perception and language.
24 views
Seen by:3D Attentional Maps: Aggregated Gaze Visualizations In Three-Dimensional Virtual Environments
Stellmach, S., Nacke, L.E., Dachselt, R. 2010. 3D Attentional Maps - Aggregated Gaze Visualizations in Three-Dimensional Virtual Environments. In Proceedings of the International Working Conference on Advanced Visual Interfaces (AVI 2010), Roma, Italy. 345-348. Short Paper. ISBN 978-1-4503-0076-6.. DOI=http://dx.doi.org/10.1145/1842993.1843058
Gaze visualizations hold the potential to facilitate usability studies of interactive systems. However, visual gaze... more Gaze visualizations hold the potential to facilitate usability studies of interactive systems. However, visual gaze analysis in three-dimensional virtual environments still lacks methods and techniques for aggregating attentional representations. We propose three novel gaze visualizations for the application in such environments: projected, object-based, and surface-based attentional maps. These techniques provide an overview of how visual attention is distributed across a scene, among different models, and across a model's surface. Two user studies conducted among eye tracking and visualization experts approve the high value of these techniques for the fast evaluation of eye tracking studies in virtual environments.
65 views
Seen by:Trends and Techniques In Visual Gaze Analysis
Stellmach, S., Nacke, L., Dachselt, R., Lindley, C.A. (2009) Trends and Techniques in Visual Gaze Analysis. In The 5th Conference on Communication by Gaze Interaction – COGAIN 2009: Gaze Interaction For Those Who Want It Most (Copenhagen, Denmark, May 2009)
Visualizing gaze data is an effective way for the quick interpretation of eye tracking results. This paper presents a... more Visualizing gaze data is an effective way for the quick interpretation of eye tracking results. This paper presents a study investigation benefits and limitations of visual gaze analysis among eye tracking professionals and researchers. The results were used to create a tool for visual gaze analysis within a Master's project.
114 views
Seen by:Advanced Gaze Visualizations for Three-Dimensional Virtual Environments
Stellmach, S., Nacke, L.E., Dachselt, R. 2010. Advanced gaze visualizations for three-dimensional virtual environments. In Proceedings of the 2010 Symposium on Eye-Tracking Research & Applications, ETRA. Austin, Texas. 109-112. Short Paper. DOI=http://dx.doi.org/10.1145/1743666.1743693
Gaze visualizations represent an effective way for gaining fast insights into eye tracking data. Current approaches do... more Gaze visualizations represent an effective way for gaining fast insights into eye tracking data. Current approaches do not adequately support eye tracking studies for three-dimensional (3D) virtual environments. Hence, we propose a set of advanced gaze visualization techniques for supporting gaze behavior analysis in such environments. Similar to commonly used gaze visualizations for two-dimensional stimuli (e.g., images and websites), we contribute advanced 3D scan paths and 3D attentional maps. In addition, we introduce a models-of-interest timeline depicting viewed models, which can be used for displaying scan paths in a selected time segment. A prototype toolkit is also discussed which combines an implementation of our proposed techniques. Their potential for facilitating eye tracking studies in virtual environments was supported by a user study among eye tracking and visualization experts.

