The visual display of quantitative information
The visual display of quantitative information
Envisioning information
TreeJuxtaposer: scalable tree comparison using Focus+Context with guaranteed visibility
ACM SIGGRAPH 2003 Papers
PlanningLines: Novel Glyphs for Representing Temporal Uncertainties and Their Evaluation
IV '05 Proceedings of the Ninth International Conference on Information Visualisation
Importance-Driven Visualization Layouts for Large Time Series Data
INFOVIS '05 Proceedings of the Proceedings of the 2005 IEEE Symposium on Information Visualization
Interactive Tree Comparison for Co-located Collaborative Information Visualization
IEEE Transactions on Visualization and Computer Graphics
Visualizing Changes of Hierarchical Data using Treemaps
IEEE Transactions on Visualization and Computer Graphics
Visual comparison of hierarchically organized data
EuroVis'08 Proceedings of the 10th Joint Eurographics / IEEE - VGTC conference on Visualization
Interactive uncertainty analysis
Proceedings of the 2012 ACM international conference on Intelligent User Interfaces
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Project schedules are effectively represented by Gantt charts, but comparing multiple versions of a schedule is difficult. To compare versions with current methods, users must search and navigate through multiple large documents, making it difficult to identify differences. We present two novel visualization techniques to support the comparison of Gantt charts. First, we encode two Gantt charts in one view by overlapping them to show differences. Second, we designed an interactive visual technique, the 'TbarView', that allows users to compare multiple schedules within one single view. We evaluated the overlap and TbarView techniques via a user study. The study results showed that our design provided a quick overview of the variances among two or more schedules, and the techniques also improved efficiency by minimizing view switching. Our visual techniques for schedule comparison could be combined with other resource analysis tools to help project teams identify and resolve errors and problems in project schedules.