This paper is the starting point for anyone planning to design advanced GUIs. The author states that design can be bettered by taking advantage of the underutilized human perceptual abilities. This paper stresses on the visualization mantra of "overview first, zoom, filter and details on demand". The author explains the different tasks that a user has to perform to actually decipher data if it falls in one of the seven categories mentioned in the paper. The examples which are stated helped me visualize how a user can interpret the data.
For a user to analyze the data, the visualization should provide him with the basic tasks. This relation has been neatly put forth in the paper. On the other hand, the data types mentioned are not the only ones in existence and many more will emerge as the amount of data grows. These subsequently would require more complex tasks for analysis.
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