Heatmap
A heat map (or heatmap) is a graphical representation of data where the individual values contained in a two-dimensional matrix are represented as different colors. Heat maps are used to show frequently scanned areas of a Web page, levels of expression of many genes across a number of comparable samples, hierarchical partitioning of data, density functions visualizations. There are many different color schemes that depend on the application area.
Heat Map in Poker
This Heat Map is a demonstration of Texas Hold'em Poker spread sheet. It shows, which cards combinations are more likely to win or lose.
Risk Matrix
This Heat Map shows the levels of risk depending on the frequency and the severity of errors on a server. Both parameters have 5 grades: from low (rare) to extreme (almost certain).
BCT Heat Map Chart 01