Data Bars are another way provided by visio product to display numeric data in a shape. Just like "Icon sets" and "Color By Value" options, A data bar communicates data values visually by altering the callout to reflect the data value. For example, you can show relative values with data bars that lengthen or shorten based on the data values, see illustrated in Figure-1.
Visio Icon sets include shapes for status icons, such as trend arrows, traffic signals, and ratings. Icon sets in MS Visio products display different icons depending on the shape data values, so you can simulate a stop light with red, yellow, and green circles to represent dangerous, warning and healthy conditions.
Visio Visualization tutorials will help you to understand and gain hand-on experience, at the end of this tutorial hope you could improve your diagram skills to increase your productivity.
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