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The fastest growing use case for big data analytics is Visual Data Analytics, basically making it easier to understand what all the captured data means. Many firms grasp the need to make sense of the data, and presenting it visually using tools like Sybase ESP (the Aleri Event Stream Processor) can allow knowledge workers (management, bankers, stock traders, etc.) to better analyze trends, outliers and perhaps even upcoming situations to guard against. There is some good information regarding multiple use scenarios on Sybase's website.