The paper focuses on the value of Information Visualization (InfoVis) and the challenges (issues) that exist in recognizing and communicating that value.
The author is of the opinion that InfoVis systems are more useful when the person does not know what questions to ask of the data. I particularly agree with this because visualization is always capable of presenting large amounts of information in a highly cognitive manner. The person who does not know how to frame the question will definitely find the answer among such large information. But, the problem remains that even in such approaches, determining the value of InfoVis becomes complex.
In addition to expressing the challenge in communicating the value of InfoVis, the paper further talks about the usefulness of InfoVis in several circumstances. The paper provides several examples that portray the cognitive and the perceptual support of InfoVis.
The author states that one effective way to determine the value of InfoVis is through tracking the success of the projects that use InfoVis techniques. But the success of a project cannot be totally attributed to only InfoVis due to the presence of several other approaches that would also have contributed to the success of the project.
The author also tries to find the value of visualization by using an Economical model. He defines the value as the difference between the value of the increase in knowledge and the costs made to obtain this increase. This leads to defining the contributive factors for the value such as research and development, acquiring cost, cost due to conversion of data and finally cost acquired during understanding the visualization. The author concludes the paper on the thought that as there is an increase in the size and complexity of the data, there will definitely be a powerful need for more effective data visualization techniques.
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