Abstract: This paper reports the results of a project to develop an interactive visualization artifact to view data from a utility market as a natural scene. The visualization was the product of a series of experiments and prototypes, with the final design bearing structural resemblance to a decorated tree. It presents the raw data and its patterns of change within an integrated structure consisting of color-coded graphs, layers of pie charts, iconic markers, and parallel coordinates, while retaining overall comprehensibility. This paper details process based on the methodology or Robertson, a prototype implementation illustrated with an example walk through, and we comment on the merit of this approach. !18
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