Visualizing a Large Product Backlog With a Treemap | Mike Cohn's Blog - Succeeding With Agile™
Suppose you have a very large product backlog–such as one with lots of themes (groups of related user stories) or being worked on by multiple agile teams. The best way to visualize this product backlog is with a treemap. Treemaps were invented in the 1990s by Dr. Ben Shneiderman as a way of visualizing hierarchical (that is, tree-structured) data.