(n or v) The method or end result of transforming numeric and textual information into a graphic format. Visualizations are used to explore large quantities of data holistically in order to understand trends or principles.

The method of displaying data resulting from end user queries and data mining from a data warehouse in a visual or pictorial manner (i.e., graphs, pie charts, bar and line charts). Similar to data mining, data visualization can be helpful in realizing trends or patterns in interrelated data.

Data Visualization is the process of making an image of the changes in a sensor system over time. The simplest data visualization maps the change in one sensor's value over time. Here's a simple Processing program that graphs data. More details