Tree-map / Heat-chart / Tile chart is good for the data analysis visualization/dash-boarding

Re-posted with permission from System Management by Exception.

Any good reporting should be fully automated and web-based with no more then 2-3 levels of drill-downs and the highest level should be a color-coded dashboard. So what is the best mean for color-coded dashboard? Nowadays the tile (heat) chart is getting more and more popular for that purpose!

The  original source of the tree-map idea: Treemaps for space-constrained visualization of hierarchies by Ben Shneiderman

CMG has published several papers about tree-mapping of capacity usage metrics:

• CMG 2004: Seeing the Forest AND the Trees: Capacity Planning for a Large Number of Servers by Linwood Merritt
• CMG 2003: Disk Subsystem Capacity Management, Based on Business Drivers, I/O Performance Metrics and MASF   
• CMG 2006: System Management by Exception, Part 6      The following two examples from the paper:

Blog Resource: http://www.trub.in/2014/02/tree-map-heat-chart-tile-chart-is-good.html