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VisTrails is a new system that enables interactive multiple-view visualizations by simplifying the creation and maintenance of visualization pipelines, and by optimizing their execution. It provides a general infrastructure that can be combined with existing visualization systems and libraries.

By maintaining the provenance of both the visualization processes and data they manipulate, it enables reproducibility and simplifies the complex problem of creating and maintaining visualization products. This allows scientists to efficiently and effectively explore data through visualization: they can explore their visualization product by returning to previous versions of a dataflow (or visualization pipeline), apply a dataflow instance to different data, explore the parameter space of the dataflow, query the visualization history, and comparatively visualize different results.

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